feat: add wallet translation

feat: add wallet repo
fix: 修正衝突
2025-04-18 17:10:40 +08:00 · 2025-04-17 17:00:42 +08:00 · 2025-04-16 17:33:29 +08:00 · 2025-04-16 17:24:54 +08:00 · 2025-04-11 17:10:34 +08:00 · 2025-04-11 07:23:42 +08:00
40 changed files with 2983 additions and 17 deletions
--- a/generate/database/20230626063528_create_wallet_table.down.sql
+++ b/generate/database/20230626063528_create_wallet_table.down.sql
@ -0,0 +1 @@
+DROP TABLE IF EXISTS `wallet`;
--- a/generate/database/20230626063528_create_wallet_table.up.sql
+++ b/generate/database/20230626063528_create_wallet_table.up.sql
@ -0,0 +1,14 @@
+CREATE TABLE `wallet` (
+  `id`         BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主鍵 ID（錢包唯一識別）',
+  `brand`      VARCHAR(50)     NOT NULL COMMENT '品牌/平台（多租戶識別）',
+  `uid`        VARCHAR(64)     NOT NULL COMMENT '使用者 UID',
+  `asset`      VARCHAR(32)     NOT NULL COMMENT '資產代碼（如 BTC、ETH、GEM_RED 等）',
+  `balance`    DECIMAL(30, 18) UNSIGNED NOT NULL DEFAULT 0 COMMENT '資產餘額',
+  `type`       TINYINT         NOT NULL COMMENT '錢包類型',
+  `create_at`  INTEGER         NOT NULL DEFAULT 0 COMMENT '建立時間（Unix）',
+  `update_at`  INTEGER         NOT NULL DEFAULT 0 COMMENT '更新時間（Unix）',
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uq_brand_uid_asset_type` (`brand`, `uid`, `asset`, `type`),
+  KEY `idx_uid` (`uid`),
+  KEY `idx_brand` (`brand`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='錢包';
--- a/generate/database/202504160353001_transaction.down.sql
+++ b/generate/database/202504160353001_transaction.down.sql
@ -0,0 +1 @@
+DROP TABLE IF EXISTS `transaction`;
--- a/generate/database/202504160353001_transaction.up.sql
+++ b/generate/database/202504160353001_transaction.up.sql
@ -0,0 +1,22 @@
+CREATE TABLE `transaction` (
+   `id`             BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '交易主鍵 ID，自動遞增',
+   `order_id`       VARCHAR(64)     DEFAULT NULL COMMENT '關聯的訂單 ID，可為空（若不是由訂單觸發）',
+   `transaction_id` VARCHAR(64)     NOT NULL COMMENT '此筆交易的唯一識別碼（系統內部使用，可為 UUID）',
+   `brand`          VARCHAR(50)     NOT NULL COMMENT '所屬品牌（支援多品牌場景）',
+   `uid`            VARCHAR(64)     NOT NULL COMMENT '交易發起者的 UID',
+   `to_uid`         VARCHAR(64)     DEFAULT NULL COMMENT '交易對象的 UID（如為轉帳場景）',
+   `type`           TINYINT         NOT NULL COMMENT '交易類型（如轉帳、入金、出金等，自定義列舉）',
+   `business_type`  TINYINT         NOT NULL COMMENT '業務類型（如合約、模擬、一般用途等，數字代碼）',
+   `crypto`         VARCHAR(32)     NOT NULL COMMENT '幣種（如 BTC、ETH、USD、TWD 等）',
+   `amount`         DECIMAL(30, 18) NOT NULL COMMENT '本次變動金額（正數為增加，負數為扣減）',
+   `balance`        DECIMAL(30, 18) NOT NULL COMMENT '交易完成後的錢包餘額',
+   `before_balance` DECIMAL(30, 18) NOT NULL COMMENT '交易前的錢包餘額（方便審計與對帳）',
+   `status`         TINYINT         NOT NULL DEFAULT 1 COMMENT '狀態（1: 有效、0: 無效/已取消）',
+   `create_time`    BIGINT          NOT NULL DEFAULT 0 COMMENT '建立時間（Unix 秒數）',
+   `due_time`       BIGINT          NOT NULL DEFAULT 0 COMMENT '到期時間（適用於凍結或延後入帳等場景）',
+   PRIMARY KEY (`id`),
+   UNIQUE KEY `uq_transaction_id` (`transaction_id`),
+   KEY `idx_uid` (`uid`),
+   KEY `idx_order_id` (`order_id`),
+   KEY `idx_create_time` (`create_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='交易紀錄表';
--- a/generate/database/202504160353002_wallet_transaction.down.sql
+++ b/generate/database/202504160353002_wallet_transaction.down.sql
@ -0,0 +1 @@
+DROP TABLE IF EXISTS `transaction`;
--- a/generate/database/202504160353002_wallet_transaction.up.sql
+++ b/generate/database/202504160353002_wallet_transaction.up.sql
@ -0,0 +1,22 @@
+CREATE TABLE `wallet_transaction` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主鍵 ID，自動遞增',
+  `transaction_id` BIGINT NOT NULL COMMENT '交易流水號（可對應某次業務操作，例如同一訂單的多筆變化）',
+  `order_id` VARCHAR(64) NOT NULL COMMENT '訂單編號（對應實際訂單或業務事件）',
+  `brand` VARCHAR(50) NOT NULL COMMENT '品牌（多租戶或多平台識別）',
+  `uid` VARCHAR(64) NOT NULL COMMENT '使用者 UID',
+  `wallet_type` TINYINT NOT NULL COMMENT '錢包類型（如主錢包、獎勵錢包、凍結錢包等）',
+  `business_type` TINYINT NOT NULL COMMENT '業務類型（如購物、退款、加值等）',
+  `asset` VARCHAR(32) NOT NULL COMMENT '資產代號（如 BTC、ETH、GEM_RED、USD 等）',
+  `amount` DECIMAL(30, 18) NOT NULL COMMENT '變動金額（正數為收入，負數為支出）',
+  `balance` DECIMAL(30, 18) NOT NULL COMMENT '當前錢包餘額（這筆交易後的餘額快照）',
+  `create_at` BIGINT NOT NULL DEFAULT 0 COMMENT '建立時間（UnixNano，紀錄交易發生時間）',
+  PRIMARY KEY (`id`),
+  KET `idx_uid` (`uid`),
+  KEY `idx_transaction_id` (`transaction_id`),
+  KEY `idx_order_id` (`order_id`),
+  KEY `idx_brand` (`brand`),
+  KEY `idx_wallet_type` (`wallet_type`)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci
+  COMMENT = '錢包資金異動紀錄（每一次交易行為的快照記錄）';
--- a/generate/database/digimon-wallet/20230527074947_create_schema.down.sql
+++ b/generate/database/digimon-wallet/20230527074947_create_schema.down.sql
@ -0,0 +1 @@
+DROP DATABASE IF EXISTS `digimon_wallet`;
--- a/generate/database/digimon-wallet/20230527074947_create_schema.up.sql
+++ b/generate/database/digimon-wallet/20230527074947_create_schema.up.sql
@ -0,0 +1 @@
+CREATE DATABASE IF NOT EXISTS `digimon_wallet`;
--- a/go.mod
+++ b/go.mod
@ -3,73 +3,117 @@ module code.30cm.net/digimon/app-cloudep-wallet-service
 go 1.24.2

 require (
+	code.30cm.net/digimon/library-go/errs v1.2.14
+	github.com/google/uuid v1.6.0
+	github.com/shopspring/decimal v1.4.0
+	github.com/stretchr/testify v1.10.0
+	github.com/testcontainers/testcontainers-go v0.36.0
 	github.com/zeromicro/go-zero v1.8.2
 	google.golang.org/grpc v1.71.1
 	google.golang.org/protobuf v1.36.6
+	gorm.io/driver/mysql v1.5.7
+	gorm.io/gorm v1.25.12
 )

 require (
+	dario.cat/mergo v1.0.1 // indirect
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/coreos/go-semver v0.3.1 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
+	github.com/cpuguy83/dockercfg v0.3.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/docker v28.0.1+incompatible // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/ebitengine/purego v0.8.2 // indirect
 	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
 	github.com/fatih/color v1.18.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-openapi/jsonpointer v0.19.6 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.4 // indirect
+	github.com/go-sql-driver/mysql v1.9.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/gnostic-models v0.6.8 // indirect
-	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
-	github.com/google/uuid v1.6.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.9 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.5.0 // indirect
+	github.com/moby/sys/user v0.1.0 // indirect
+	github.com/moby/sys/userns v0.1.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.1 // indirect
 	github.com/openzipkin/zipkin-go v0.4.3 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/prometheus/client_golang v1.21.1 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.62.0 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/redis/go-redis/v9 v9.7.3 // indirect
+	github.com/shirou/gopsutil/v4 v4.25.1 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.etcd.io/etcd/api/v3 v3.5.15 // indirect
 	go.etcd.io/etcd/client/pkg/v3 v3.5.15 // indirect
 	go.etcd.io/etcd/client/v3 v3.5.15 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
-	go.opentelemetry.io/otel v1.34.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.35.0 // indirect
 	go.opentelemetry.io/otel/exporters/jaeger v1.17.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.24.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.24.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.24.0 // indirect
 	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.24.0 // indirect
 	go.opentelemetry.io/otel/exporters/zipkin v1.24.0 // indirect
-	go.opentelemetry.io/otel/metric v1.34.0 // indirect
+	go.opentelemetry.io/otel/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.34.0 // indirect
-	go.opentelemetry.io/otel/trace v1.34.0 // indirect
+	go.opentelemetry.io/otel/trace v1.35.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/automaxprocs v1.6.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
 	go.uber.org/zap v1.24.0 // indirect
+	golang.org/x/crypto v0.33.0 // indirect
 	golang.org/x/net v0.35.0 // indirect
 	golang.org/x/oauth2 v0.25.0 // indirect
-	golang.org/x/sys v0.30.0 // indirect
+	golang.org/x/sys v0.31.0 // indirect
 	golang.org/x/term v0.29.0 // indirect
 	golang.org/x/text v0.22.0 // indirect
 	golang.org/x/time v0.10.0 // indirect
--- a/go.sum
+++ b/go.sum
@ -1,3 +1,15 @@
+code.30cm.net/digimon/library-go/errs v1.2.14 h1:Un9wcIIjjJW8D2i0ISf8ibzp9oNT4OqLsaSKW0T4RJU=
+code.30cm.net/digimon/library-go/errs v1.2.14/go.mod h1:Hs4v7SbXNggDVBGXSYsFMjkii1qLF+rugrIpWePN4/o=
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 h1:bvDV9vkmnHYOMsOr4WLk+Vo07yKIzd94sVoIqshQ4bU=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
 github.com/alicebob/gopher-json v0.0.0-20230218143504-906a9b012302 h1:uvdUDbHQHO85qeSydJtItA4T55Pw6BtAejd0APRJOCE=
 github.com/alicebob/gopher-json v0.0.0-20230218143504-906a9b012302/go.mod h1:SGnFV6hVsYE877CKEZ6tDNTjaSXYUk6QqoIK6PrAtcc=
 github.com/alicebob/miniredis/v2 v2.34.0 h1:mBFWMaJSNL9RwdGRyEDoAAv8OQc5UlEhLDQggTglU/0=
@ -14,26 +26,48 @@ github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK3
 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
+github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
+github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpSBQv6A=
+github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7npe7dG/wG+uFPw=
 github.com/coreos/go-semver v0.3.1 h1:yi21YpKnrx1gt5R+la8n5WgS0kCrsPp33dmEyHReZr4=
 github.com/coreos/go-semver v0.3.1/go.mod h1:irMmmIw/7yzSRPWryHsK7EYSg09caPQL03VsM8rvUec=
 github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs=
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/cpuguy83/dockercfg v0.3.2 h1:DlJTyZGBDlXqUZ2Dk2Q3xHs/FtnooJJVaad2S9GKorA=
+github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
+github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
+github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
+github.com/docker/docker v28.0.1+incompatible h1:FCHjSRdXhNRFjlHMTv4jUNlIBbTeRjrWfeFuJp7jpo0=
+github.com/docker/docker v28.0.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/go-connections v0.5.0 h1:USnMq7hx7gwdVZq1L49hLXaFtUdTADjXGp+uj1Br63c=
+github.com/docker/go-connections v0.5.0/go.mod h1:ov60Kzw0kKElRwhNs9UlUHAE/F9Fe6GLaXnqyDdmEXc=
+github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
+github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
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@ -41,6 +75,9 @@ github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En
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@ -52,9 +89,10 @@ github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek
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@ -66,6 +104,10 @@ github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 h1:bkypFPDjIYGfCYD5mRBvpqxfYX1
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@ -83,6 +125,10 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
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@ -90,17 +136,35 @@ github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovk
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@ -109,6 +173,8 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
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@ -123,6 +189,12 @@ github.com/redis/go-redis/v9 v9.7.3 h1:YpPyAayJV+XErNsatSElgRZZVCwXX9QzkKYNvO7x0
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@ -133,6 +205,7 @@ github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpE
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@ -140,11 +213,19 @@ github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXl
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+github.com/testcontainers/testcontainers-go v0.36.0 h1:YpffyLuHtdp5EUsI5mT4sRw8GZhO/5ozyDT1xWGXt00=
+github.com/testcontainers/testcontainers-go v0.36.0/go.mod h1:yk73GVJ0KUZIHUtFna6MO7QS144qYpoY8lEEtU9Hed0=
+github.com/tklauser/go-sysconf v0.3.12 h1:0QaGUFOdQaIVdPgfITYzaTegZvdCjmYO52cSFAEVmqU=
+github.com/tklauser/go-sysconf v0.3.12/go.mod h1:Ho14jnntGE1fpdOqQEEaiKRpvIavV0hSfmBq8nJbHYI=
+github.com/tklauser/numcpus v0.6.1 h1:ng9scYS7az0Bk4OZLvrNXNSAO2Pxr1XXRAPyjhIx+Fk=
+github.com/tklauser/numcpus v0.6.1/go.mod h1:1XfjsgE2zo8GVw7POkMbHENHzVg3GzmoZ9fESEdAacY=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/gopher-lua v1.1.1 h1:kYKnWBjvbNP4XLT3+bPEwAXJx262OhaHDWDVOPjL46M=
 github.com/yuin/gopher-lua v1.1.1/go.mod h1:GBR0iDaNXjAgGg9zfCvksxSRnQx76gclCIb7kdAd1Pw=
+github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
+github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 github.com/zeromicro/go-zero v1.8.2 h1:AbJckBoojbr1lqCN1dkvURTIHOau7yvKReEd7ZmjuCk=
 github.com/zeromicro/go-zero v1.8.2/go.mod h1:G5dF+jzCEuq0t1j8qdrtVAy30QMgctGcKSfqFIGsvSg=
 go.etcd.io/etcd/api/v3 v3.5.15 h1:3KpLJir1ZEBrYuV2v+Twaa/e2MdDCEZ/70H+lzEiwsk=
@ -155,8 +236,10 @@ go.etcd.io/etcd/client/v3 v3.5.15 h1:23M0eY4Fd/inNv1ZfU3AxrbbOdW79r9V9Rl62Nm6ip4
 go.etcd.io/etcd/client/v3 v3.5.15/go.mod h1:CLSJxrYjvLtHsrPKsy7LmZEE+DK2ktfd2bN4RhBMwlU=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
-go.opentelemetry.io/otel v1.34.0 h1:zRLXxLCgL1WyKsPVrgbSdMN4c0FMkDAskSTQP+0hdUY=
-go.opentelemetry.io/otel v1.34.0/go.mod h1:OWFPOQ+h4G8xpyjgqo4SxJYdDQ/qmRH+wivy7zzx9oI=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 h1:jq9TW8u3so/bN+JPT166wjOI6/vQPF6Xe7nMNIltagk=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0/go.mod h1:p8pYQP+m5XfbZm9fxtSKAbM6oIllS7s2AfxrChvc7iw=
+go.opentelemetry.io/otel v1.35.0 h1:xKWKPxrxB6OtMCbmMY021CqC45J+3Onta9MqjhnusiQ=
+go.opentelemetry.io/otel v1.35.0/go.mod h1:UEqy8Zp11hpkUrL73gSlELM0DupHoiq72dR+Zqel/+Y=
 go.opentelemetry.io/otel/exporters/jaeger v1.17.0 h1:D7UpUy2Xc2wsi1Ras6V40q806WM07rqoCWzXu7Sqy+4=
 go.opentelemetry.io/otel/exporters/jaeger v1.17.0/go.mod h1:nPCqOnEH9rNLKqH/+rrUjiMzHJdV1BlpKcTwRTyKkKI=
 go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.24.0 h1:t6wl9SPayj+c7lEIFgm4ooDBZVb01IhLB4InpomhRw8=
@ -169,14 +252,14 @@ go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.24.0 h1:s0PHtIkN+3xrbDO
 go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.24.0/go.mod h1:hZlFbDbRt++MMPCCfSJfmhkGIWnX1h3XjkfxZUjLrIA=
 go.opentelemetry.io/otel/exporters/zipkin v1.24.0 h1:3evrL5poBuh1KF51D9gO/S+N/1msnm4DaBqs/rpXUqY=
 go.opentelemetry.io/otel/exporters/zipkin v1.24.0/go.mod h1:0EHgD8R0+8yRhUYJOGR8Hfg2dpiJQxDOszd5smVO9wM=
-go.opentelemetry.io/otel/metric v1.34.0 h1:+eTR3U0MyfWjRDhmFMxe2SsW64QrZ84AOhvqS7Y+PoQ=
-go.opentelemetry.io/otel/metric v1.34.0/go.mod h1:CEDrp0fy2D0MvkXE+dPV7cMi8tWZwX3dmaIhwPOaqHE=
+go.opentelemetry.io/otel/metric v1.35.0 h1:0znxYu2SNyuMSQT4Y9WDWej0VpcsxkuklLa4/siN90M=
+go.opentelemetry.io/otel/metric v1.35.0/go.mod h1:nKVFgxBZ2fReX6IlyW28MgZojkoAkJGaE8CpgeAU3oE=
 go.opentelemetry.io/otel/sdk v1.34.0 h1:95zS4k/2GOy069d321O8jWgYsW3MzVV+KuSPKp7Wr1A=
 go.opentelemetry.io/otel/sdk v1.34.0/go.mod h1:0e/pNiaMAqaykJGKbi+tSjWfNNHMTxoC9qANsCzbyxU=
 go.opentelemetry.io/otel/sdk/metric v1.34.0 h1:5CeK9ujjbFVL5c1PhLuStg1wxA7vQv7ce1EK0Gyvahk=
 go.opentelemetry.io/otel/sdk/metric v1.34.0/go.mod h1:jQ/r8Ze28zRKoNRdkjCZxfs6YvBTG1+YIqyFVFYec5w=
-go.opentelemetry.io/otel/trace v1.34.0 h1:+ouXS2V8Rd4hp4580a8q23bg0azF2nI8cqLYnC8mh/k=
-go.opentelemetry.io/otel/trace v1.34.0/go.mod h1:Svm7lSjQD7kG7KJ/MUHPVXSDGz2OX4h0M2jHBhmSfRE=
+go.opentelemetry.io/otel/trace v1.35.0 h1:dPpEfJu1sDIqruz7BHFG3c7528f6ddfSWfFDVt/xgMs=
+go.opentelemetry.io/otel/trace v1.35.0/go.mod h1:WUk7DtFp1Aw2MkvqGdwiXYDZZNvA/1J8o6xRXLrIkyc=
 go.opentelemetry.io/proto/otlp v1.3.1 h1:TrMUixzpM0yuc/znrFTP9MMRh8trP93mkCiDVeXrui0=
 go.opentelemetry.io/proto/otlp v1.3.1/go.mod h1:0X1WI4de4ZsLrrJNLAQbFeLCm3T7yBkR0XqQ7niQU+8=
 go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
@ -192,6 +275,8 @@ go.uber.org/zap v1.24.0/go.mod h1:2kMP+WWQ8aoFoedH3T2sq6iJ2yDWpHbP0f6MQbS9Gkg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
+golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
@ -210,14 +295,20 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.29.0 h1:L6pJp37ocefwRRtYPKSWOWzOtWSxVajvz2ldH/xi3iU=
 golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
@ -259,6 +350,13 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gorm.io/driver/mysql v1.5.7 h1:MndhOPYOfEp2rHKgkZIhJ16eVUIRf2HmzgoPmh7FCWo=
+gorm.io/driver/mysql v1.5.7/go.mod h1:sEtPWMiqiN1N1cMXoXmBbd8C6/l+TESwriotuRRpkDM=
+gorm.io/gorm v1.25.7/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=
+gorm.io/gorm v1.25.12 h1:I0u8i2hWQItBq1WfE0o2+WuL9+8L21K9e2HHSTE/0f8=
+gorm.io/gorm v1.25.12/go.mod h1:xh7N7RHfYlNc5EmcI/El95gXusucDrQnHXe0+CgWcLQ=
+gotest.tools/v3 v3.5.1 h1:EENdUnS3pdur5nybKYIh2Vfgc8IUNBjxDPSjtiJcOzU=
+gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=
 k8s.io/api v0.29.3 h1:2ORfZ7+bGC3YJqGpV0KSDDEVf8hdGQ6A03/50vj8pmw=
 k8s.io/api v0.29.3/go.mod h1:y2yg2NTyHUUkIoTC+phinTnEa3KFM6RZ3szxt014a80=
 k8s.io/apimachinery v0.29.4 h1:RaFdJiDmuKs/8cm1M6Dh1Kvyh59YQFDcFuFTSmXes6Q=
--- a/internal/config/config.go
+++ b/internal/config/config.go
@ -1,7 +1,22 @@
 package config

-import "github.com/zeromicro/go-zero/zrpc"
+import (
+	"github.com/zeromicro/go-zero/zrpc"
+	"time"
+)

 type Config struct {
 	zrpc.RpcServerConf
+
+	MySQL struct {
+		UserName        string
+		Password        string
+		Host            string
+		Port            string
+		Database        string
+		MaxIdleConns    int
+		MaxOpenConns    int
+		ConnMaxLifetime time.Duration
+		LogLevel        string
+	}
 }
--- a/pkg/domain/const.go
+++ b/pkg/domain/const.go
@ -0,0 +1 @@
+package domain
--- a/pkg/domain/entity/transaction.go
+++ b/pkg/domain/entity/transaction.go
@ -0,0 +1,31 @@
+package entity
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"github.com/shopspring/decimal"
+)
+
+// Transaction 代表一筆錢包交易紀錄（例如充值、扣款、轉帳等）
+// 此表記錄所有交易的詳細資訊，包括金額、對象、餘額狀態與交易型態等
+type Transaction struct {
+	ID                  int64           `gorm:"column:id"`                         // 交易主鍵 ID，自動遞增
+	OrderID             string          `gorm:"column:order_id"`                   // 關聯的訂單 ID，可為空（若不是由訂單觸發）
+	TransactionID       string          `gorm:"column:transaction_id"`             // 此筆交易的唯一識別碼（系統內部使用，可為 UUID）
+	Brand               string          `gorm:"column:brand"`                      // 所屬品牌（支援多品牌場景）
+	UID                 string          `gorm:"column:uid"`                        // 交易發起者的 UID
+	ToUID               string          `gorm:"column:to_uid"`                     // 交易對象的 UID（如為轉帳場景）
+	TxType              wallet.TxType   `gorm:"column:type"`                       // 交易類型（如轉帳、入金、出金等，自定義列舉）
+	BusinessType        int8            `gorm:"column:business_type"`              // 業務類型（如合約、模擬、一般用途等，數字代碼）
+	Asset               string          `gorm:"column:asset"`                      // 幣種（如 BTC、ETH、USD、TWD 等）
+	Amount              decimal.Decimal `gorm:"column:amount"`                     // 本次變動金額（正數為增加，負數為扣減）
+	PostTransferBalance decimal.Decimal `gorm:"column:post_transfer_balance"`      // 交易完成後的錢包餘額
+	BeforeBalance       decimal.Decimal `gorm:"column:before_balance"`             // 交易前的錢包餘額（方便審計與對帳）
+	Status              wallet.Enable   `gorm:"column:status"`                     // 狀態（1: 有效、0: 無效/已取消）
+	CreateAt            int64           `gorm:"column:create_time;autoCreateTime"` // 建立時間（Unix 秒數）
+	DueTime             int64           `gorm:"column:due_time"`                   // 到期時間（適用於凍結或延後入帳等場景）
+}
+
+// TableName 指定 GORM 對應的資料表名稱
+func (t *Transaction) TableName() string {
+	return "transaction"
+}
--- a/pkg/domain/entity/wallet.go
+++ b/pkg/domain/entity/wallet.go
@ -0,0 +1,34 @@
+package entity
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"github.com/shopspring/decimal"
+)
+
+// 🔐 重點設計理念：
+// 避免競爭與資金衝突
+// 將錢包用途拆分成不同 type，避免一個錢包同時處理可用資金與凍結資金，降低邏輯錯誤風險。
+//
+// 資金安全性與追蹤性強
+// 分別記錄「凍結」「未確認」「可用」等不同狀態，方便核對資產總額與可提資金。
+//
+// 合約與模擬隔離
+// 保留合約交易與模擬交易專屬錢包，實現清楚的邊界控制與風險隔離。
+//
+// 多品牌支援
+// Brand 欄位讓平台可以支援多租戶架構（不同品牌有不同的錢包群組）。
+
+type Wallet struct {
+	ID       int64           `gorm:"column:id"`        // 主鍵 ID（錢包的唯一識別）
+	Brand    string          `gorm:"column:brand"`     // 品牌/平台（區分多租戶、多品牌情境）
+	UID      string          `gorm:"column:uid"`       // 使用者 UID
+	Asset    string          `gorm:"column:asset"`     // 資產代號，可為 BTC、ETH、GEM_RED、GEM_BLUE、POINTS ,USD, TWD 等....
+	Balance  decimal.Decimal `gorm:"column:balance"`   // 餘額（使用高精度 decimal 避免浮點誤差）
+	Type     wallet.Types    `gorm:"column:type"`      // 錢包類型
+	CreateAt int64           `gorm:"column:create_at"` // 建立時間（UnixNano timestamp）
+	UpdateAt int64           `gorm:"column:update_at"` // 更新時間（UnixNano timestamp）
+}
+
+func (c *Wallet) TableName() string {
+	return "wallet" // 對應的資料表名稱
+}
--- a/pkg/domain/entity/wallet_transaction.go
+++ b/pkg/domain/entity/wallet_transaction.go
@ -0,0 +1,26 @@
+package entity
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"github.com/shopspring/decimal"
+)
+
+// WalletTransaction 表示錢包的交易紀錄（每一次扣款、加值、入帳、退費都會有一筆紀錄）
+type WalletTransaction struct {
+	ID            int64           `gorm:"column:id"`             // 主鍵 ID（自動遞增）
+	TransactionID int64           `gorm:"column:transaction_id"` // 交易流水號（可對應某次業務操作，例如同一訂單的多筆變化）
+	OrderID       string          `gorm:"column:order_id"`       // 訂單編號（對應實際訂單或業務事件）
+	Brand         string          `gorm:"column:brand"`          // 品牌（多租戶或多平台識別）
+	UID           string          `gorm:"column:uid"`            // 使用者 UID
+	WalletType    wallet.Types    `gorm:"column:wallet_type"`    // 錢包類型（例如：主錢包、獎勵錢包、凍結錢包等）
+	BusinessType  int8            `gorm:"column:business_type"`  // 業務類型（定義本次交易是什麼用途，例如購物、退款、加值等）
+	Asset         string          `gorm:"column:asset"`          // 資產代號，可為 BTC、ETH、GEM_RED、GEM_BLUE、POINTS ,USD, TWD 等....
+	Amount        decimal.Decimal `gorm:"column:amount"`         // 變動金額（正數為收入，負數為支出）
+	Balance       decimal.Decimal `gorm:"column:balance"`        // 當前錢包餘額（這筆交易後的餘額快照）
+	CreateAt      int64           `gorm:"column:create_at"`      // 建立時間（UnixNano，紀錄交易發生時間）
+}
+
+// TableName 指定 GORM 對應的資料表名稱
+func (t *WalletTransaction) TableName() string {
+	return "wallet_transaction"
+}
--- a/pkg/domain/error.go
+++ b/pkg/domain/error.go
@ -0,0 +1 @@
+package domain
--- a/pkg/domain/repository/error.go
+++ b/pkg/domain/repository/error.go
@ -0,0 +1,6 @@
+package repository
+
+import "errors"
+
+var ErrRecordNotFound = errors.New("query record not found")
+var ErrBalanceInsufficient = errors.New("balance insufficient") // 餘額不足
--- a/pkg/domain/repository/transaction.go
+++ b/pkg/domain/repository/transaction.go
@ -0,0 +1,32 @@
+package repository
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/entity"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"context"
+	"time"
+)
+
+type TransactionRepository interface {
+	FindByOrderID(ctx context.Context, orderID string) (entity.Transaction, error)
+	Insert(ctx context.Context, tx *entity.Transaction) error
+	BatchInsert(ctx context.Context, txs []*entity.Transaction) error
+	List(ctx context.Context, query TransactionQuery) ([]entity.Transaction, int64, error)
+	FindByDueTimeRange(ctx context.Context, start time.Time, txType []wallet.TxType) ([]entity.Transaction, error)
+	UpdateStatusByID(ctx context.Context, id int64, status int) error
+	ListWalletTransactions(ctx context.Context, uid string, orderIDs []string, walletType wallet.Types) ([]entity.WalletTransaction, error)
+}
+
+type TransactionQuery struct {
+	UID          *string
+	OrderID      *string
+	Brand        *string
+	Assets       *string
+	WalletType   *wallet.Types
+	TxTypes      []wallet.TxType
+	BusinessType []int8
+	StartTime    *int64
+	EndTime      *int64
+	PageIndex    int64
+	PageSize     int64
+}
--- a/pkg/domain/repository/wallet.go
+++ b/pkg/domain/repository/wallet.go
@ -0,0 +1,89 @@
+package repository
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/entity"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"context"
+	"github.com/shopspring/decimal"
+
+	"gorm.io/gorm"
+)
+
+type Wallet struct {
+	Brand   string          // 品牌/平台（區分多租戶、多品牌情境）
+	UID     string          // 使用者 UID
+	Asset   string          // 資產代號，可為 BTC、ETH、GEM_RED、GEM_BLUE、POINTS ,USD, TWD 等....
+	Balance decimal.Decimal // 餘額（使用高精度 decimal 避免浮點誤差）
+	Type    wallet.Types    // 錢包類型
+}
+
+// WalletRepository 是錢包的總入口，負責查詢、初始化與跨帳戶查詢邏輯
+type WalletRepository interface {
+	// NewDB 建立新的 DB 實例（提供給需要操作 tx 的場景）
+	NewDB() *gorm.DB
+	// Session 取得單一使用者資產的錢包服務（非交易模式）
+	//📌 使用場景：
+	//    用在 不需要交易機制的場景，例如：
+	//		純查詢錢包餘額，查詢快取、Log、統計報表，非敏感資料更新，失敗可以重試的情境
+	// ✅ 優點：
+	//    簡單快速、使用預設的資料庫連線
+	//    不用包 Transaction ，沒有 Rollback 負擔
+	Session(uid, asset string) UserWalletService
+	// SessionWithTx 在資料庫交易內取得錢包服務
+	// 📌 使用場景：
+	// 用在 資料需要一致性與原子性保證的邏輯中，例如：
+	// 加值與扣款（同時操作多個錢包）檢查餘額後立刻寫入交易記錄，綁定訂單與錢包扣款的行為
+	// 所有與 Add/Commit 有關的處理，與其他模組（訂單、KYC）共用一個 transaction
+	// ✅ 優點：
+	// 保障操作過程中不被其他並發操作影響
+	// 可控制 rollback 行為避免中間失敗導致不一致
+	// 可組合複雜操作（如：更新錢包同時寫入交易紀錄）
+	SessionWithTx(db *gorm.DB, uid, asset string) UserWalletService
+	// Transaction 資料庫交易包裝器（確保交易一致性）
+	Transaction(fn func(db *gorm.DB) error) error
+	// InitWallets 初始化使用者的所有錢包類型（如可用、凍結等）
+	InitWallets(ctx context.Context, param []Wallet) error
+	// QueryBalances 查詢特定資產的錢包餘額
+	QueryBalances(ctx context.Context, req BalanceQuery) ([]entity.Wallet, error)
+	// QueryBalancesByUIDs 查詢多個使用者在特定資產下的錢包餘額
+	QueryBalancesByUIDs(ctx context.Context, uids []string, req BalanceQuery) ([]entity.Wallet, error)
+	//// GetDailyTxAmount 查詢使用者今日交易總金額（指定類型與業務）
+	//GetDailyTxAmount(ctx context.Context, uid string, txTypes []domain.TxType, business wallet.BusinessName) ([]entity.Wallet, error)
+}
+
+// BalanceQuery 是查詢餘額時的篩選條件
+type BalanceQuery struct {
+	UID   string         // 使用者 ID
+	Asset string         // 資產類型（Crypto、寶石等）
+	Kinds []wallet.Types // 錢包類型（如可用、凍結等）
+}
+
+// UserWalletService 定義了一個「單一使用者、單一資產」的錢包操作合約
+type UserWalletService interface {
+	// InitializeWallets 為新使用者初始化所有錢包類型並寫入資料庫
+	InitializeWallets(ctx context.Context, brand string) ([]entity.Wallet, error)
+	// GetAllBalances 查詢此使用者此資產下所有錢包類型的當前餘額
+	GetAllBalances(ctx context.Context) ([]entity.Wallet, error)
+	// GetBalancesForTypes 查詢指定錢包類型的一組餘額（不加鎖）
+	GetBalancesForTypes(ctx context.Context, kinds []wallet.Types) ([]entity.Wallet, error)
+	// GetBalancesForUpdate 查詢並鎖定指定錢包類型（FOR UPDATE）
+	GetBalancesForUpdate(ctx context.Context, kinds []wallet.Types) ([]entity.Wallet, error)
+	// CurrentBalance 從本地緩存取得某種錢包類型的餘額
+	CurrentBalance(kind wallet.Types) decimal.Decimal
+	// IncreaseBalance 增加指定錢包類型的餘額，並累積一筆交易紀錄
+	IncreaseBalance(kind wallet.Types, orderID string, amount decimal.Decimal) error
+	// DecreaseBalance 減少指定錢包類型的餘額（等同於 IncreaseBalance 的負數版本）
+	DecreaseBalance(kind wallet.Types, orderID string, amount decimal.Decimal) error
+	// PrepareTransactions 為所有暫存交易紀錄填上 TXID/OrderID/Brand/BusinessType，並回傳可落庫的切片
+	PrepareTransactions(
+		txID int64,
+		orderID, brand string,
+		businessType wallet.BusinessName,
+	) []entity.WalletTransaction
+	// PersistBalances 將本地緩存中所有錢包最終餘額批次寫入資料庫
+	PersistBalances(ctx context.Context) error
+	// PersistOrderBalances 將本地緩存中所有訂單相關餘額批次寫入 transaction 表
+	PersistOrderBalances(ctx context.Context) error
+	// HasAvailableBalance 確認此使用者此資產是否已有可用餘額錢包
+	HasAvailableBalance(ctx context.Context) (bool, error)
+}
--- a/pkg/domain/repository/wallet_transaction.go
+++ b/pkg/domain/repository/wallet_transaction.go
@ -0,0 +1,17 @@
+package repository
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/entity"
+	"context"
+	"gorm.io/gorm"
+)
+
+type WalletTransactionRepo interface {
+	Create(ctx context.Context, db *gorm.DB, tx []entity.WalletTransaction) error
+	HistoryBalance(ctx context.Context, req HistoryReq) ([]entity.WalletTransaction, error)
+}
+
+type HistoryReq struct {
+	UID       string
+	StartTime int64
+}
--- a/pkg/domain/usecase/errors.go
+++ b/pkg/domain/usecase/errors.go
@ -0,0 +1 @@
+package usecase
--- a/pkg/domain/usecase/wallet.go
+++ b/pkg/domain/usecase/wallet.go
@ -0,0 +1,91 @@
+package usecase
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"context"
+	"github.com/shopspring/decimal"
+)
+
+// WalletTransferUseCase 處理錢包資產轉移的核心業務邏輯（支援多種錢包操作）
+type WalletTransferUseCase interface {
+	// Process 處理一次完整的錢包轉帳（含內部轉帳、跨使用者轉帳）
+	Process(ctx context.Context, req WalletTransferRequest) error
+	// Withdraw 出金操作（從錢包扣款）
+	Withdraw(ctx context.Context, tx WalletTransferRequest) error
+	// Deposit 入金操作（錢包加值）
+	Deposit(ctx context.Context, tx WalletTransferRequest) error
+	// DepositUnconfirmed 入金至未確認餘額（如轉帳待確認、預約加值）
+	DepositUnconfirmed(ctx context.Context, tx WalletTransferRequest) error
+	// Freeze 將資產從可用餘額移動至凍結餘額（常用於下單等鎖倉需求）
+	Freeze(ctx context.Context, tx WalletTransferRequest) error
+	// AppendFreeze 追加凍結金額（已有凍結金額的情況下再次追加）
+	AppendFreeze(ctx context.Context, tx WalletTransferRequest) error
+	// UnFreeze 將凍結金額移回可用餘額（如訂單取消）
+	UnFreeze(ctx context.Context, tx WalletTransferRequest) error
+	// RollbackFreeze 將凍結金額退回，並作為取消交易的一部分
+	RollbackFreeze(ctx context.Context, tx WalletTransferRequest) error
+	// RollbackFreezeAddAvailable 退回凍結金額並補回可用金額（全額退款流程）
+	RollbackFreezeAddAvailable(ctx context.Context, tx WalletTransferRequest) error
+	// CancelFreeze 取消凍結操作（不轉移回可用餘額，只做作廢處理）
+	CancelFreeze(ctx context.Context, tx WalletTransferRequest) error
+	// Unconfirmed 將未確認金額移回可用餘額（例如：加值完成確認）
+	Unconfirmed(ctx context.Context, tx WalletTransferRequest) error
+	// Balance 查詢目前錢包餘額（含可用與不可用）
+	Balance(ctx context.Context, req BalanceReq) ([]Balance, error)
+	// HistoryBalance 查詢歷史錢包快照（指定時間前的餘額狀態）
+	HistoryBalance(ctx context.Context, req BalanceReq) ([]Balance, error)
+	// BalanceByAssets 查詢使用者特定資產的各錢包類型餘額
+	BalanceByAssets(ctx context.Context, uid, cryptoCode string, walletTypes []wallet.Types) (BalanceAssetsResp, error)
+	// CheckBalance 驗證可用餘額是否足夠（通常用於風控前置驗證）
+	CheckBalance(ctx context.Context, tx WalletTransferRequest) error
+	// GetTodayWithdraw 查詢使用者今日累積出金額
+	GetTodayWithdraw(ctx context.Context, uid, toCrypto string) (TodayWithdrawResp, error)
+}
+
+// WalletTransferRequest 表示一次錢包轉帳的請求資料
+type WalletTransferRequest struct {
+	ReferenceOrderID    string              // 對應的訂單編號，可為空（非訂單觸發）
+	FromUID             string              // 付款方 UID
+	ToUID               string              // 收款方 UID，若為錢包內部轉帳可與 FromUID 相同
+	Asset               string              // 資產代號（例如 BTC、ETH、TWD 等）
+	Amount              decimal.Decimal     // 轉移金額（正數，系統控制正負方向）
+	PostTransferBalance decimal.Decimal     // 轉帳後餘額（可選填，便於日誌追蹤與審計）
+	TxType              wallet.TxType       // 交易類型（如入金、出金、轉帳等）
+	Business            wallet.BusinessName // 業務場景類型（如合約、模擬、一般用途等）
+	Brand               string              // 所屬品牌（支援多品牌架構）
+	FromWalletType      wallet.Types        // 扣款來源錢包類型
+	ToWalletType        wallet.Types        // 收款目標錢包類型
+}
+
+// BalanceReq 表示查詢錢包餘額的請求參數
+type BalanceReq struct {
+	UID        string // 使用者 UID
+	Asset      string // 指定資產（如 BTC）
+	BeforeHour int    // 幾小時前的快照（若查歷史快照）
+}
+
+// Balance 表示錢包的當前或歷史餘額狀態
+type Balance struct {
+	Asset       string             // 資產代號
+	Available   decimal.Decimal    // 可用餘額
+	Unavailable UnavailableBalance // 不可用餘額（凍結、未確認）
+	UpdateTime  int64              // 更新時間（Unix 時間戳）
+}
+
+// UnavailableBalance 表示錢包中不可用的部分
+type UnavailableBalance struct {
+	Freeze      decimal.Decimal // 凍結金額（如掛單中）
+	Unconfirmed decimal.Decimal // 未確認金額（如等待轉帳）
+}
+
+// BalanceAssetsResp 表示使用者所有錢包類型在某資產的總和
+type BalanceAssetsResp struct {
+	Balances map[string]decimal.Decimal // 各錢包類型對應的餘額
+	Asset    string                     // 查詢的資產代號
+}
+
+// TodayWithdrawResp 表示使用者今天的累積出金結果
+type TodayWithdrawResp struct {
+	Withdraw decimal.Decimal // 今日總出金金額
+	Asset    string          // 資產代號
+}
--- a/pkg/domain/wallet/business_name.go
+++ b/pkg/domain/wallet/business_name.go
@ -0,0 +1,7 @@
+package wallet
+
+type BusinessName string
+
+func (b BusinessName) ToInt8() int8 {
+	return int8(0)
+}
--- a/pkg/domain/wallet/enable_type.go
+++ b/pkg/domain/wallet/enable_type.go
@ -0,0 +1,16 @@
+package wallet
+
+type Enable int8
+
+const (
+	EnableTrue  Enable = 1
+	EnableFalse Enable = 2
+)
+
+func (e Enable) ToINT8() int8 {
+	return int8(e)
+}
+
+func (e Enable) ToBool() bool {
+	return e == EnableTrue
+}
--- a/pkg/domain/wallet/tx_type.go
+++ b/pkg/domain/wallet/tx_type.go
@ -0,0 +1,35 @@
+package wallet
+
+type TxType int8
+
+// 交易類型
+const (
+	// Deposit 充值(增加可用餘額)
+	Deposit TxType = iota + 1
+	// Withdraw 提現(減少可用餘額)
+	Withdraw
+	// Freeze 凍結(減少可用餘額，加在凍結餘額)
+	Freeze
+	// UnFreeze 解凍(減少凍結餘額)
+	UnFreeze
+	// RollbackFreeze (減少凍結餘額，加回可用餘額，不可指定金額，根據訂單)
+	RollbackFreeze
+	// Unconfirmed 限制(減少凍結餘額，加別人限制餘額)
+	Unconfirmed
+	// CancelFreeze 取消凍結(減少凍結餘額，加回可用餘額，，可指定金額)
+	CancelFreeze
+	// DepositUnconfirmed 充值(增加限制餘額)
+	DepositUnconfirmed
+	// AppendFreeze 追加凍結(減少可用餘額，加在凍結餘額)
+	AppendFreeze
+	// RollbackFreezeAddAvailable (rollback凍結餘額，指定金額加回可用餘額)
+	RollbackFreezeAddAvailable
+	// Distribution 平台分發（活動送錢給玩家）
+	Distribution
+	// SystemTransfer 系統劃轉
+	SystemTransfer
+)
+
+func (t TxType) ToInt() int {
+	return int(t)
+}
--- a/pkg/domain/wallet/wallet_type.go
+++ b/pkg/domain/wallet/wallet_type.go
@ -0,0 +1,17 @@
+package wallet
+
+type Types int8
+
+const (
+	TypeAvailable   Types = iota + 1 // 可動用金額（使用者可以自由花用的餘額）
+	TypeFreeze                       // 被凍結金額（交易進行中或風控鎖住的金額）
+	TypeUnconfirmed                  // 未確認金額（交易已送出但區塊鏈尚未確認）
+	// 以下為進階用途：合約或模擬交易錢包
+
+	TypeContractAvailable   // 合約系統的可用金額
+	TypeContractFreeze      // 合約中被凍結的金額
+	TypeSimulationAvailable // 模擬交易可用金額（例如沙盒環境）
+	TypeSimulationFreeze    // 模擬交易凍結金額
+)
+
+var AllTypes = []Types{TypeAvailable, TypeFreeze, TypeUnconfirmed}
--- a/pkg/lib/sql_client/config.go
+++ b/pkg/lib/sql_client/config.go
@ -0,0 +1,16 @@
+package sql_client
+
+import "time"
+
+type Config struct {
+	User              string
+	Password          string
+	Host              string
+	Port              string
+	Database          string
+	MaxIdleConns      int
+	MaxOpenConns      int
+	ConnMaxLifetime   time.Duration
+	InterpolateParams bool
+	LogLevel          string
+}
--- a/pkg/lib/sql_client/const.go
+++ b/pkg/lib/sql_client/const.go
@ -0,0 +1,10 @@
+package sql_client
+
+import "time"
+
+const (
+	defaultMaxOpenConns     = 25
+	defaultMaxIdleConns     = 25
+	defaultMaxLifeTime      = 5 * time.Minute
+	defaultSlowSQLThreshold = 200 * time.Millisecond
+)
--- a/pkg/lib/sql_client/initMySQL.go
+++ b/pkg/lib/sql_client/initMySQL.go
@ -0,0 +1,30 @@
+package sql_client
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/internal/config"
+	"fmt"
+	"gorm.io/gorm"
+)
+
+func NewMySQLClient(conf config.Config) (*gorm.DB, error) {
+	dbConf := &Config{
+		User:              conf.MySQL.UserName,
+		Password:          conf.MySQL.Password,
+		Host:              conf.MySQL.Host,
+		Port:              conf.MySQL.Port,
+		Database:          conf.MySQL.Database,
+		MaxIdleConns:      conf.MySQL.MaxIdleConns,
+		MaxOpenConns:      conf.MySQL.MaxOpenConns,
+		ConnMaxLifetime:   conf.MySQL.ConnMaxLifetime,
+		InterpolateParams: true,
+	}
+
+	dbInit := New(dbConf, WithLogLevel(conf.MySQL.LogLevel))
+
+	orm, err := dbInit.Conn()
+	if err != nil {
+		return nil, fmt.Errorf("failed to initiate db connection pool: %w", err)
+	}
+
+	return orm, nil
+}
--- a/pkg/lib/sql_client/mysql.go
+++ b/pkg/lib/sql_client/mysql.go
@ -0,0 +1,84 @@
+package sql_client
+
+import (
+	"fmt"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+	"gorm.io/gorm/schema"
+	"log"
+	"os"
+)
+
+type MySQL struct {
+	mysqlConf  gorm.Dialector
+	gormConf   *gorm.Config
+	serverConf *Config
+}
+
+var defaultConfig = logger.Config{
+	SlowThreshold:             defaultSlowSQLThreshold,
+	LogLevel:                  logger.Warn,
+	IgnoreRecordNotFoundError: false,
+	Colorful:                  true,
+}
+
+// New initializes a MysqlInit using the provided Config and options. If
+// opts is not provided it will initialize MysqlInit with default configuration.
+func New(conf *Config, opts ...Option) *MySQL {
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8&parseTime=True&loc=Local&interpolateParams=%t",
+		conf.User, conf.Password, conf.Host, conf.Port, conf.Database, conf.InterpolateParams)
+
+	loggerDefault := logger.New(log.New(os.Stdout, "\r\n", log.LstdFlags), defaultConfig)
+
+	mysqli := &MySQL{
+		mysqlConf: mysql.Open(dsn),
+		gormConf: &gorm.Config{
+			NamingStrategy: schema.NamingStrategy{
+				SingularTable: true, // use singular table name
+			},
+			Logger: loggerDefault,
+		},
+		serverConf: conf,
+	}
+
+	for _, opt := range opts {
+		opt(mysqli)
+	}
+
+	return mysqli
+}
+
+// Conn initiates connection to database and return a gorm.DB.
+func (mysqli *MySQL) Conn() (*gorm.DB, error) {
+	db, err := gorm.Open(mysqli.mysqlConf, mysqli.gormConf)
+	if err != nil {
+		return nil, fmt.Errorf("gorm open error: %w", err)
+	}
+
+	sqlDB, err := db.DB()
+	if err != nil {
+		return nil, fmt.Errorf("get connect pool error :%w", err)
+	}
+
+	maxIdleConns := defaultMaxIdleConns
+	if mysqli.serverConf.MaxIdleConns > 0 {
+		maxIdleConns = mysqli.serverConf.MaxIdleConns
+	}
+
+	maxOpenConns := defaultMaxOpenConns
+	if mysqli.serverConf.MaxOpenConns > 0 {
+		maxOpenConns = mysqli.serverConf.MaxOpenConns
+	}
+
+	maxLifeTime := defaultMaxLifeTime
+	if mysqli.serverConf.ConnMaxLifetime > 0 {
+		maxLifeTime = mysqli.serverConf.ConnMaxLifetime
+	}
+
+	sqlDB.SetMaxIdleConns(maxIdleConns)
+	sqlDB.SetMaxOpenConns(maxOpenConns)
+	sqlDB.SetConnMaxLifetime(maxLifeTime)
+
+	return db, nil
+}
--- a/pkg/lib/sql_client/options.go
+++ b/pkg/lib/sql_client/options.go
@ -0,0 +1,41 @@
+package sql_client
+
+import (
+	"gorm.io/gorm/logger"
+	"strings"
+)
+
+type Option func(*MySQL)
+
+// WithLogLevel set gorm log level.
+func WithLogLevel(level string) Option {
+	return func(mysqli *MySQL) {
+		var gormLogLevel logger.LogLevel
+
+		switch strings.ToLower(level) {
+		case "panic", "fatal", "error":
+			gormLogLevel = logger.Error
+		case "warn", "warning":
+			gormLogLevel = logger.Warn
+		case "info", "debug", "trace":
+			gormLogLevel = logger.Info
+		case "silent":
+			gormLogLevel = logger.Silent
+		default:
+			gormLogLevel = logger.Silent
+		}
+
+		newLogger := mysqli.gormConf.Logger.LogMode(gormLogLevel)
+
+		mysqli.gormConf.Logger = newLogger
+	}
+}
+
+// WithPerformance disable default transaction and create a prepared statement
+// related doc: https://gorm.io/docs/performance.html
+func WithPerformance() Option {
+	return func(mysqli *MySQL) {
+		mysqli.gormConf.SkipDefaultTransaction = true
+		mysqli.gormConf.PrepareStmt = true
+	}
+}
--- a/pkg/repository/mysql_init_test.go
+++ b/pkg/repository/mysql_init_test.go
@ -0,0 +1,65 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/wait"
+)
+
+const (
+	MySQLUser     = "root"
+	MySQLPassword = "password"
+	MySQLDatabase = "testdb"
+	MySQLPort     = "3306"
+)
+
+// 啟動 MySQL container
+func startMySQLContainer() (host string, port string, dsn string, tearDown func(), err error) {
+	ctx := context.Background()
+
+	req := testcontainers.ContainerRequest{
+		Image: "mysql:8.0",
+		Env: map[string]string{
+			"MYSQL_ROOT_PASSWORD": MySQLPassword,
+			"MYSQL_DATABASE":      MySQLDatabase,
+		},
+		ExposedPorts: []string{"3306/tcp"},
+		WaitingFor:   wait.ForListeningPort("3306/tcp"),
+	}
+
+	mysqlC, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{
+		ContainerRequest: req,
+		Started:          true,
+	})
+	if err != nil {
+		return "", "", "", nil, err
+	}
+
+	mappedPort, err := mysqlC.MappedPort(ctx, "3306")
+	if err != nil {
+		return "", "", "", nil, err
+	}
+
+	containerHost, err := mysqlC.Host(ctx)
+	if err != nil {
+		return "", "", "", nil, err
+	}
+
+	// 組成 DSN（Data Source Name）
+	dsn = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?parseTime=true",
+		MySQLUser,
+		MySQLPassword,
+		containerHost,
+		mappedPort.Port(),
+		MySQLDatabase,
+	)
+
+	tearDown = func() {
+		_ = mysqlC.Terminate(ctx)
+	}
+
+	fmt.Printf("MySQL ready at: %s\n", dsn)
+	return containerHost, mappedPort.Port(), dsn, tearDown, nil
+}
--- a/pkg/repository/user_wallet.go
+++ b/pkg/repository/user_wallet.go
@ -0,0 +1,219 @@
+package repository
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/entity"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/repository"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"github.com/shopspring/decimal"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+	"time"
+)
+
+// WalletService 代表一個使用者在某資產上的錢包服務，
+// 負責讀取／寫入資料庫並在記憶體暫存變動
+type WalletService struct {
+	db                 *gorm.DB
+	uid                string                         // 使用者識別碼
+	asset              string                         // 資產代號 (如 BTC、ETH、TWD)
+	localBalances      map[wallet.Types]entity.Wallet // 暫存各類型錢包當前餘額
+	localOrderBalances map[int64]decimal.Decimal      // 暫存各訂單變動後的餘額
+	transactions       []entity.WalletTransaction     // 暫存所有尚未落庫的錢包交易紀錄
+}
+
+// NewWalletService 建立一個 WalletService 實例
+func NewWalletService(db *gorm.DB, uid, asset string) repository.UserWalletService {
+	return &WalletService{
+		db:                 db,
+		uid:                uid,
+		asset:              asset,
+		localBalances:      make(map[wallet.Types]entity.Wallet, len(wallet.AllTypes)),
+		localOrderBalances: make(map[int64]decimal.Decimal, len(wallet.AllTypes)),
+	}
+}
+
+// InitializeWallets 啟動時為新使用者初始化所有類型錢包，並寫入資料庫
+func (s *WalletService) InitializeWallets(ctx context.Context, brand string) ([]entity.Wallet, error) {
+	var wallets []entity.Wallet
+	for _, t := range wallet.AllTypes {
+		wallets = append(wallets, entity.Wallet{
+			Brand:   brand,
+			UID:     s.uid,
+			Asset:   s.asset,
+			Balance: decimal.Zero,
+			Type:    t,
+		})
+	}
+	if err := s.db.WithContext(ctx).Create(&wallets).Error; err != nil {
+		return nil, err
+	}
+	// 將初始化後的錢包資料寫入本地緩存
+	for _, w := range wallets {
+		s.localBalances[w.Type] = w
+	}
+	return wallets, nil
+}
+
+// GetAllBalances 查詢該使用者某資產所有錢包類型當前餘額
+func (s *WalletService) GetAllBalances(ctx context.Context) ([]entity.Wallet, error) {
+	var result []entity.Wallet
+	err := s.db.WithContext(ctx).
+		Where("uid = ? AND asset = ?", s.uid, s.asset).
+		Select("id, asset, balance, type").
+		Find(&result).Error
+	if err != nil {
+		return nil, err
+	}
+	for _, w := range result {
+		s.localBalances[w.Type] = w
+	}
+	return result, nil
+}
+
+// GetBalancesForTypes 查詢指定類型的錢包餘額，不上鎖
+func (s *WalletService) GetBalancesForTypes(ctx context.Context, kinds []wallet.Types) ([]entity.Wallet, error) {
+	var result []entity.Wallet
+	err := s.db.WithContext(ctx).
+		Where("uid = ? AND asset = ?", s.uid, s.asset).
+		Where("type IN ?", kinds).
+		Select("id, asset, balance, type").
+		Find(&result).Error
+	if err != nil {
+		return nil, translateNotFound(err)
+	}
+	for _, w := range result {
+		s.localBalances[w.Type] = w
+	}
+	return result, nil
+}
+
+// GetBalancesForUpdate 查詢並鎖定指定類型的錢包 (FOR UPDATE)
+func (s *WalletService) GetBalancesForUpdate(ctx context.Context, kinds []wallet.Types) ([]entity.Wallet, error) {
+	var result []entity.Wallet
+	err := s.db.WithContext(ctx).
+		Where("uid = ? AND asset = ?", s.uid, s.asset).
+		Where("type IN ?", kinds).
+		Clauses(clause.Locking{Strength: "UPDATE"}).
+		Select("id, asset, balance, type").
+		Find(&result).Error
+	if err != nil {
+		return nil, translateNotFound(err)
+	}
+	for _, w := range result {
+		s.localBalances[w.Type] = w
+	}
+	return result, nil
+}
+
+// CurrentBalance 從緩存中取得某種類型錢包的當前餘額
+func (s *WalletService) CurrentBalance(kind wallet.Types) decimal.Decimal {
+	if w, ok := s.localBalances[kind]; ok {
+		return w.Balance
+	}
+	return decimal.Zero
+}
+
+// IncreaseBalance 在本地緩存新增餘額，並記錄一筆 WalletTransaction
+func (s *WalletService) IncreaseBalance(kind wallet.Types, orderID string, amount decimal.Decimal) error {
+	w, ok := s.localBalances[kind]
+	if !ok {
+		return repository.ErrRecordNotFound
+	}
+	w.Balance = w.Balance.Add(amount)
+	if w.Balance.LessThan(decimal.Zero) {
+		return repository.ErrBalanceInsufficient
+	}
+	s.transactions = append(s.transactions, entity.WalletTransaction{
+		OrderID:    orderID,
+		UID:        s.uid,
+		WalletType: kind,
+		Asset:      s.asset,
+		Amount:     amount,
+		Balance:    w.Balance,
+	})
+	s.localBalances[kind] = w
+	return nil
+}
+
+// DecreaseBalance 本質上是 IncreaseBalance 的負數版本
+func (s *WalletService) DecreaseBalance(kind wallet.Types, orderID string, amount decimal.Decimal) error {
+	return s.IncreaseBalance(kind, orderID, amount.Neg())
+}
+
+// PrepareTransactions 為每筆暫存的 WalletTransaction 填入共用欄位 (txID, brand, businessType)，
+// 並回傳完整可落庫的切片
+func (s *WalletService) PrepareTransactions(
+	txID int64,
+	orderID, brand string,
+	businessType wallet.BusinessName,
+) []entity.WalletTransaction {
+	for i := range s.transactions {
+		s.transactions[i].TransactionID = txID
+		s.transactions[i].OrderID = orderID
+		s.transactions[i].Brand = brand
+		s.transactions[i].BusinessType = businessType.ToInt8()
+	}
+	return s.transactions
+}
+
+// PersistBalances 寫入本地緩存中所有錢包的最終餘額到資料庫
+func (s *WalletService) PersistBalances(ctx context.Context) error {
+	return s.db.Transaction(func(tx *gorm.DB) error {
+		for _, w := range s.localBalances {
+			if err := tx.WithContext(ctx).
+				Model(&entity.Wallet{}).
+				Where("id = ?", w.ID).
+				UpdateColumns(map[string]interface{}{
+					"balance":   w.Balance,
+					"update_at": time.Now().Unix(),
+				}).Error; err != nil {
+				return fmt.Errorf("更新錢包餘額失敗 (id=%d): %w", w.ID, err)
+			}
+		}
+		return nil
+	}, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
+}
+
+// PersistOrderBalances 寫入所有訂單錢包的最終餘額到 transaction 表
+func (s *WalletService) PersistOrderBalances(ctx context.Context) error {
+	return s.db.Transaction(func(tx *gorm.DB) error {
+		for id, bal := range s.localOrderBalances {
+			if err := tx.WithContext(ctx).
+				Model(&entity.Transaction{}).
+				Where("id = ?", id).
+				Update("post_transfer_balance", bal).Error; err != nil {
+				return fmt.Errorf("更新訂單錢包餘額失敗 (id=%d): %w", id, err)
+			}
+		}
+		return nil
+	}, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
+}
+
+func (s *WalletService) HasAvailableBalance(ctx context.Context) (bool, error) {
+	var exists bool
+	err := s.db.WithContext(ctx).
+		Model(&entity.Wallet{}).
+		Select("1").
+		Where("uid = ? AND asset = ?", s.uid, s.asset).
+		Where("type = ?", wallet.TypeAvailable).
+		Limit(1).
+		Scan(&exists).Error
+
+	if err != nil {
+		return false, err
+	}
+
+	return exists, nil
+}
+
+// translateNotFound 將 GORM 的 RecordNotFound 轉為自訂錯誤
+func translateNotFound(err error) error {
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return repository.ErrRecordNotFound
+	}
+	return err
+}
--- a/pkg/repository/user_wallet_test.go
+++ b/pkg/repository/user_wallet_test.go
--- a/pkg/repository/wallet.go
+++ b/pkg/repository/wallet.go
@ -0,0 +1,113 @@
+package repository
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/entity"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/repository"
+	"context"
+	"database/sql"
+	"gorm.io/gorm"
+)
+
+type WalletRepositoryParam struct {
+	DB *gorm.DB `name:"dbM"`
+}
+
+type WalletRepository struct {
+	WalletRepositoryParam
+}
+
+func MustCategoryRepository(param WalletRepositoryParam) repository.WalletRepository {
+	return &WalletRepository{
+		param,
+	}
+}
+
+func (repo *WalletRepository) NewDB() *gorm.DB {
+	return repo.DB.Begin()
+}
+
+// Transaction 指 DB 事務，非記錄一筆交易
+func (repo *WalletRepository) Transaction(fn func(db *gorm.DB) error) error {
+	db := repo.DB.Begin(&sql.TxOptions{
+		Isolation: sql.LevelReadCommitted,
+		ReadOnly:  false,
+	})
+	defer db.Rollback()
+
+	if err := fn(db); err != nil {
+		return err
+	}
+
+	if err := db.Commit().Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (repo *WalletRepository) Session(uid, asset string) repository.UserWalletService {
+	return NewWalletService(repo.DB, uid, asset)
+}
+
+func (repo *WalletRepository) SessionWithTx(db *gorm.DB, uid, asset string) repository.UserWalletService {
+	return NewWalletService(db, uid, asset)
+}
+
+func (repo *WalletRepository) InitWallets(ctx context.Context, param []repository.Wallet) error {
+	wallets := make([]entity.Wallet, 0, len(param))
+	for _, t := range param {
+		wallets = append(wallets, entity.Wallet{
+			Brand:   t.Brand,
+			UID:     t.UID,
+			Asset:   t.Asset,
+			Balance: t.Balance,
+			Type:    t.Type,
+		})
+	}
+
+	if err := repo.DB.Create(&wallets).WithContext(ctx).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (repo *WalletRepository) QueryBalances(ctx context.Context, req repository.BalanceQuery) ([]entity.Wallet, error) {
+	var data []entity.Wallet
+	s := repo.DB.WithContext(ctx).
+		Select("id, asset, balance, type, update_at").
+		Where("uid = ?", req.UID)
+
+	if req.Asset != "" {
+		s = s.Where("asset = ?", req.Asset)
+	}
+
+	err := s.Find(&data).Error
+	if err != nil {
+		return nil, err
+	}
+
+	return data, nil
+}
+
+func (repo *WalletRepository) QueryBalancesByUIDs(ctx context.Context, uids []string, req repository.BalanceQuery) ([]entity.Wallet, error) {
+	var data []entity.Wallet
+	query := repo.DB.WithContext(ctx).
+		Select("uid, asset, balance, type, update_at").
+		Where("uid IN ?", uids)
+
+	if req.Asset != "" {
+		query = query.Where("asset = ?", req.Asset)
+	}
+
+	if len(req.Kinds) > 0 {
+		query = query.Where("type IN ?", req.Kinds)
+	}
+
+	err := query.Find(&data).Error
+	if err != nil {
+		return nil, err
+	}
+
+	return data, nil
+}
--- a/pkg/repository/wallet_test.go
+++ b/pkg/repository/wallet_test.go
@ -0,0 +1,355 @@
+package repository
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/internal/config"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/repository"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/lib/sql_client"
+	"context"
+	"errors"
+	"fmt"
+	"github.com/shopspring/decimal"
+	"github.com/stretchr/testify/assert"
+	"gorm.io/gorm"
+	"testing"
+	"time"
+)
+
+func SetupTestWalletRepository() (repository.WalletRepository, *gorm.DB, func(), error) {
+	host, port, _, tearDown, err := startMySQLContainer()
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("failed to start MySQL container: %w", err)
+	}
+
+	conf := config.Config{
+		MySQL: struct {
+			UserName        string
+			Password        string
+			Host            string
+			Port            string
+			Database        string
+			MaxIdleConns    int
+			MaxOpenConns    int
+			ConnMaxLifetime time.Duration
+			LogLevel        string
+		}{
+			UserName:        MySQLUser,
+			Password:        MySQLPassword,
+			Host:            host,
+			Port:            port,
+			Database:        MySQLDatabase,
+			MaxIdleConns:    10,
+			MaxOpenConns:    100,
+			ConnMaxLifetime: 300,
+			LogLevel:        "info",
+		},
+	}
+
+	db, err := sql_client.NewMySQLClient(conf)
+	if err != nil {
+		tearDown()
+		return nil, nil, nil, fmt.Errorf("failed to create db client: %w", err)
+	}
+
+	repo := MustCategoryRepository(WalletRepositoryParam{DB: db})
+	return repo, db, tearDown, nil
+}
+
+func TestWalletRepository_InitWallets(t *testing.T) {
+	repo, db, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+
+	// 🔽 這裡加上建表 SQL
+	createTableSQL := `
+	CREATE TABLE IF NOT EXISTS wallet (
+	  id         BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主鍵 ID（錢包唯一識別）',
+	  brand      VARCHAR(50)     NOT NULL COMMENT '品牌/平台（多租戶識別）',
+	  uid        VARCHAR(64)     NOT NULL COMMENT '使用者 UID',
+	  asset      VARCHAR(32)     NOT NULL COMMENT '資產代碼（如 BTC、ETH、GEM_RED 等）',
+	  balance    DECIMAL(30, 18) UNSIGNED NOT NULL DEFAULT 0 COMMENT '資產餘額',
+	  type       TINYINT         NOT NULL COMMENT '錢包類型',
+	  create_at  INTEGER         NOT NULL DEFAULT 0 COMMENT '建立時間（Unix）',
+	  update_at  INTEGER         NOT NULL DEFAULT 0 COMMENT '更新時間（Unix）',
+	  PRIMARY KEY (id),
+	  UNIQUE KEY uq_brand_uid_asset_type (brand, uid, asset, type),
+	  KEY idx_uid (uid),
+	  KEY idx_brand (brand)
+	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='錢包';
+	`
+
+	err = db.Exec(createTableSQL).Error
+	assert.NoError(t, err)
+
+	tests := []struct {
+		name    string
+		param   []repository.Wallet
+		wantErr bool
+	}{
+		{
+			name: "insert single wallet",
+			param: []repository.Wallet{
+				{
+					Brand:   "test-brand",
+					UID:     "user001",
+					Asset:   "BTC",
+					Balance: decimal.NewFromFloat(10.5),
+					Type:    wallet.TypeAvailable,
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name: "insert multiple wallets",
+			param: []repository.Wallet{
+				{
+					Brand:   "test-brand",
+					UID:     "user002",
+					Asset:   "ETH",
+					Balance: decimal.NewFromFloat(5),
+					Type:    wallet.TypeAvailable,
+				},
+				{
+					Brand:   "test-brand",
+					UID:     "user002",
+					Asset:   "ETH",
+					Balance: decimal.NewFromFloat(1.2),
+					Type:    wallet.TypeFreeze,
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name: "insert duplicate primary key (should fail if unique constraint)",
+			param: []repository.Wallet{
+				{
+					Brand:   "test-brand",
+					UID:     "user001",
+					Asset:   "BTC",
+					Balance: decimal.NewFromFloat(1),
+					Type:    wallet.TypeAvailable, // 與第一筆測試資料相同
+				},
+			},
+			wantErr: true, // 預期會違反 UNIQUE constraint
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := repo.InitWallets(context.Background(), tt.param)
+			if tt.wantErr {
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
+			}
+		})
+	}
+}
+
+func TestWalletRepository_QueryBalances(t *testing.T) {
+	repo, db, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+	// 🔽 這裡加上建表 SQL
+	createTableSQL := `
+	CREATE TABLE IF NOT EXISTS wallet (
+	  id         BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主鍵 ID（錢包唯一識別）',
+	  brand      VARCHAR(50)     NOT NULL COMMENT '品牌/平台（多租戶識別）',
+	  uid        VARCHAR(64)     NOT NULL COMMENT '使用者 UID',
+	  asset      VARCHAR(32)     NOT NULL COMMENT '資產代碼（如 BTC、ETH、GEM_RED 等）',
+	  balance    DECIMAL(30, 18) UNSIGNED NOT NULL DEFAULT 0 COMMENT '資產餘額',
+	  type       TINYINT         NOT NULL COMMENT '錢包類型',
+	  create_at  INTEGER         NOT NULL DEFAULT 0 COMMENT '建立時間（Unix）',
+	  update_at  INTEGER         NOT NULL DEFAULT 0 COMMENT '更新時間（Unix）',
+	  PRIMARY KEY (id),
+	  UNIQUE KEY uq_brand_uid_asset_type (brand, uid, asset, type),
+	  KEY idx_uid (uid),
+	  KEY idx_brand (brand)
+	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='錢包';
+	`
+
+	err = db.Exec(createTableSQL).Error
+	assert.NoError(t, err)
+
+	ctx := context.Background()
+
+	// 建立初始化錢包資料
+	wallets := []repository.Wallet{
+		{Brand: "brand1", UID: "user1", Asset: "BTC", Balance: decimal.NewFromFloat(1.5), Type: wallet.TypeAvailable},
+		{Brand: "brand1", UID: "user1", Asset: "ETH", Balance: decimal.NewFromFloat(2.5), Type: wallet.TypeFreeze},
+		{Brand: "brand1", UID: "user2", Asset: "BTC", Balance: decimal.NewFromFloat(3.0), Type: wallet.TypeAvailable},
+	}
+
+	err = repo.InitWallets(ctx, wallets)
+	assert.NoError(t, err)
+
+	tests := []struct {
+		name     string
+		query    repository.BalanceQuery
+		expected int
+	}{
+		{
+			name: "Query all by UID",
+			query: repository.BalanceQuery{
+				UID: "user1",
+			},
+			expected: 2,
+		},
+		{
+			name: "Query by UID and Asset",
+			query: repository.BalanceQuery{
+				UID:   "user1",
+				Asset: "BTC",
+			},
+			expected: 1,
+		},
+		{
+			name: "Query by UID with non-existing asset",
+			query: repository.BalanceQuery{
+				UID:   "user1",
+				Asset: "GEM_RED",
+			},
+			expected: 0,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := repo.QueryBalances(ctx, tt.query)
+			assert.NoError(t, err)
+			assert.Len(t, got, tt.expected)
+		})
+	}
+}
+
+func TestWalletRepository_QueryBalancesByUIDs(t *testing.T) {
+	repo, db, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+
+	// 🔽 這裡加上建表 SQL
+	createTableSQL := `
+	CREATE TABLE IF NOT EXISTS wallet (
+	  id         BIGINT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主鍵 ID（錢包唯一識別）',
+	  brand      VARCHAR(50)     NOT NULL COMMENT '品牌/平台（多租戶識別）',
+	  uid        VARCHAR(64)     NOT NULL COMMENT '使用者 UID',
+	  asset      VARCHAR(32)     NOT NULL COMMENT '資產代碼（如 BTC、ETH、GEM_RED 等）',
+	  balance    DECIMAL(30, 18) UNSIGNED NOT NULL DEFAULT 0 COMMENT '資產餘額',
+	  type       TINYINT         NOT NULL COMMENT '錢包類型',
+	  create_at  INTEGER         NOT NULL DEFAULT 0 COMMENT '建立時間（Unix）',
+	  update_at  INTEGER         NOT NULL DEFAULT 0 COMMENT '更新時間（Unix）',
+	  PRIMARY KEY (id),
+	  UNIQUE KEY uq_brand_uid_asset_type (brand, uid, asset, type),
+	  KEY idx_uid (uid),
+	  KEY idx_brand (brand)
+	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='錢包';
+	`
+
+	err = db.Exec(createTableSQL).Error
+	assert.NoError(t, err)
+
+	ctx := context.Background()
+
+	// 初始化錢包資料
+	initData := []repository.Wallet{
+		{Brand: "brand1", UID: "user1", Asset: "BTC", Balance: decimal.NewFromFloat(1.5), Type: wallet.TypeAvailable},
+		{Brand: "brand1", UID: "user2", Asset: "BTC", Balance: decimal.NewFromFloat(2.0), Type: wallet.TypeAvailable},
+		{Brand: "brand1", UID: "user2", Asset: "ETH", Balance: decimal.NewFromFloat(3.0), Type: wallet.TypeFreeze},
+		{Brand: "brand1", UID: "user3", Asset: "BTC", Balance: decimal.NewFromFloat(4.5), Type: wallet.TypeAvailable},
+	}
+
+	err = repo.InitWallets(ctx, initData)
+	assert.NoError(t, err)
+
+	tests := []struct {
+		name     string
+		uids     []string
+		query    repository.BalanceQuery
+		expected int
+	}{
+		{
+			name:     "Query all users with BTC",
+			uids:     []string{"user1", "user2", "user3"},
+			query:    repository.BalanceQuery{Asset: "BTC"},
+			expected: 3,
+		},
+		{
+			name:     "Query specific users with filter by type",
+			uids:     []string{"user2"},
+			query:    repository.BalanceQuery{Kinds: []wallet.Types{wallet.TypeAvailable}},
+			expected: 1,
+		},
+		{
+			name:     "Query with no matches",
+			uids:     []string{"user2"},
+			query:    repository.BalanceQuery{Asset: "DOGE"},
+			expected: 0,
+		},
+		{
+			name:     "Query all for user2",
+			uids:     []string{"user2"},
+			query:    repository.BalanceQuery{},
+			expected: 2,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result, err := repo.QueryBalancesByUIDs(ctx, tt.uids, tt.query)
+			assert.NoError(t, err)
+			assert.Len(t, result, tt.expected)
+		})
+	}
+}
+
+func TestWalletRepository_NewDB(t *testing.T) {
+	repo, _, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+
+	tx := repo.NewDB()
+	assert.NotNil(t, tx)
+	assert.NoError(t, tx.Commit().Error)
+}
+
+func TestWalletRepository_Transaction(t *testing.T) {
+	repo, _, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+
+	t.Run("commit success", func(t *testing.T) {
+		err := repo.Transaction(func(tx *gorm.DB) error {
+			return nil // 模擬成功流程
+		})
+		assert.NoError(t, err)
+	})
+
+	t.Run("rollback due to fn error", func(t *testing.T) {
+		customErr := errors.New("rollback me")
+		err := repo.Transaction(func(tx *gorm.DB) error {
+			return customErr
+		})
+		assert.ErrorIs(t, err, customErr)
+	})
+}
+
+func TestWalletRepository_Session(t *testing.T) {
+	repo, _, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+
+	sess := repo.Session("userX", "BTC")
+	assert.NotNil(t, sess)
+}
+
+func TestWalletRepository_SessionWithTx(t *testing.T) {
+	repo, _, tearDown, err := SetupTestWalletRepository()
+	assert.NoError(t, err)
+	defer tearDown()
+
+	tx := repo.NewDB()
+	defer tx.Rollback()
+
+	sess := repo.SessionWithTx(tx, "userY", "ETH")
+	assert.NotNil(t, sess)
+}
--- a/pkg/usecase/wallet.go
+++ b/pkg/usecase/wallet.go
@ -0,0 +1,124 @@
+package usecase
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/repository"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/usecase"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"code.30cm.net/digimon/library-go/errs"
+	"context"
+	"sync"
+)
+
+type WalletUseCaseParam struct {
+	WalletRepo            repository.WalletRepository
+	TransactionRepo       repository.TransactionRepository
+	WalletTransactionRepo repository.WalletTransactionRepo
+}
+
+type WalletUseCase struct {
+	WalletUseCaseParam
+
+	// 內存讀寫所記錄有哪些玩家已經確認有存在錢包過了，減少確認錢包是否存在頻率
+	sync.RWMutex
+	existUIDAsset map[string]struct{}
+}
+
+func (use *WalletUseCase) Process(ctx context.Context, req usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+// Withdraw 提幣
+// 1. 新增一筆提幣交易
+// 2. 錢包減少可用餘額
+// 3. 錢包變化新增一筆減少可用餘額資料
+func (use *WalletUseCase) Withdraw(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	if !tx.Amount.IsPositive() {
+		return errs.InvalidRange("failed to get correct amount")
+	}
+	tx.TxType = wallet.Withdraw
+
+	return use.ProcessTransaction(ctx, tx, userWalletFlow{
+		UID:     tx.FromUID,
+		Asset:   tx.Asset,
+		Actions: []walletActionOption{use.withLockAvailable(), use.withSubAvailable()}, //use.lockAvailable(), use.subAvailable()
+	})
+
+}
+
+func (use *WalletUseCase) Deposit(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) DepositUnconfirmed(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) Freeze(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) AppendFreeze(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) UnFreeze(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) RollbackFreeze(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) RollbackFreezeAddAvailable(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) CancelFreeze(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) Unconfirmed(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) Balance(ctx context.Context, req usecase.BalanceReq) ([]usecase.Balance, error) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) HistoryBalance(ctx context.Context, req usecase.BalanceReq) ([]usecase.Balance, error) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) BalanceByAssets(ctx context.Context, uid, cryptoCode string, walletTypes []wallet.Types) (usecase.BalanceAssetsResp, error) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) CheckBalance(ctx context.Context, tx usecase.WalletTransferRequest) error {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (use *WalletUseCase) GetTodayWithdraw(ctx context.Context, uid, toCrypto string) (usecase.TodayWithdrawResp, error) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func MustWalletUseCase(param WalletUseCaseParam) usecase.WalletTransferUseCase {
+	return &WalletUseCase{
+		WalletUseCaseParam: param,
+		existUIDAsset:      make(map[string]struct{}),
+	}
+}
--- a/pkg/usecase/wallet_tx_option.go
+++ b/pkg/usecase/wallet_tx_option.go
@ -0,0 +1,79 @@
+package usecase
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/repository"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/usecase"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	"context"
+	"errors"
+	"fmt"
+)
+
+type uidAssetKey struct {
+	uid   string
+	asset string
+}
+
+// walletActionOption 表示一個「錢包操作函式」，可在錢包流程中插入自定義動作（例如：扣款、加值、凍結）
+type walletActionOption func(
+	ctx context.Context,
+	tx *usecase.WalletTransferRequest,
+	wallet repository.UserWalletService,
+) error
+
+// withLockAvailable 鎖定用戶可用餘額
+func (use *WalletUseCase) withLockAvailable() walletActionOption {
+	return func(ctx context.Context, tx *usecase.WalletTransferRequest, w repository.UserWalletService) error {
+		uidAsset := uidAssetKey{
+			uid:   tx.FromUID,
+			asset: tx.Asset,
+		}
+
+		if !use.checkWalletExistence(uidAsset) {
+			// 找不到錢包存不存在
+			wStatus, err := w.HasAvailableBalance(ctx)
+			if err != nil {
+				return fmt.Errorf("failed to check wallet: %w", err)
+			}
+			// 錢包不存在要做新增
+			if !wStatus {
+				//// 是合約模擬交易或帳變且錢包不存在才建立錢包
+				//if !(tx.Business == wa.ContractSimulationBusinessTypeBusinessName || tx.BusinessType == domain.DistributionBusinessTypeBusinessName) {
+				//	// 新增錢包有命中 UK 不需要額外上鎖
+				//	return use.translateError(err)
+				//}
+
+				if _, err := w.InitializeWallets(ctx, tx.Brand); err != nil {
+					return err
+				}
+
+				return nil
+			}
+
+			use.markWalletAsExisting(uidAsset)
+		}
+
+		_, err := w.GetBalancesForUpdate(ctx, []wallet.Types{wallet.TypeAvailable})
+		if err != nil {
+			return err
+		}
+
+		return nil
+	}
+}
+
+// subAvailable 減少用戶可用餘額
+func (use *WalletUseCase) withSubAvailable() walletActionOption {
+	return func(_ context.Context, tx *usecase.WalletTransferRequest, w repository.UserWalletService) error {
+		if err := w.DecreaseBalance(wallet.TypeAvailable, tx.ReferenceOrderID, tx.Amount); err != nil {
+			if errors.Is(err, repository.ErrBalanceInsufficient) {
+				// todo 錯誤要看怎麼給(餘額不足)
+				return fmt.Errorf("balance insufficient")
+			}
+
+			return err
+		}
+
+		return nil
+	}
+}
--- a/pkg/usecase/wallet_tx_processer.go
+++ b/pkg/usecase/wallet_tx_processer.go
@ -0,0 +1,127 @@
+package usecase
+
+import (
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/entity"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/repository"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/usecase"
+	"code.30cm.net/digimon/app-cloudep-wallet-service/pkg/domain/wallet"
+	repo "code.30cm.net/digimon/app-cloudep-wallet-service/pkg/repository"
+	"context"
+	"fmt"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+// userWalletFlow 表示一組要對某使用者、某資產執行的錢包操作（動作串列）
+// 這些操作通常會在轉帳流程中依序套用，例如：從主錢包扣款 → 加到對方凍結錢包
+type userWalletFlow struct {
+	UID     string               // 目標使用者 UID
+	Asset   string               // 目標資產代號（如 BTC、ETH、TWD）
+	Actions []walletActionOption // 要依序執行的錢包操作
+}
+
+// ProcessTransaction 處理一次完整的「錢包 + 訂單」交易流程：
+//  1. 透過 Repository 開啟 DB 事務
+//  2. 依序對每個 userWalletFlow 建立對應的 UserWalletService 實例
+//  3. 依序執行每個 flow.Actions（扣款、加值、凍結、解凍…）
+//  4. 建立一條 Transaction 記錄並寫進 transactionRepository
+//  5. 將所有 walletTransactions 寫進 walletTransactionRepository
+//  6. 最後在同一事務中執行每個 wallet 的 Execute / ExecuteOrder
+//  7. 特別注意 flow 會按照順序做，所以順序是重要的
+func (use *WalletUseCase) ProcessTransaction(
+	ctx context.Context,
+	req usecase.WalletTransferRequest,
+	flows ...userWalletFlow,
+) error {
+	return use.WalletRepo.Transaction(func(db *gorm.DB) error {
+		// 暫存所有建立好的 UserWalletService
+		wallets := make([]repository.UserWalletService, 0, len(flows))
+
+		// flows 會按照順序做．順序是重要的
+		for _, flow := range flows {
+			// 1️⃣ 建立針對該使用者＋資產的 UserWalletService
+			wSvc := repo.NewWalletService(db, flow.UID, flow.Asset)
+
+			// 2️⃣ 依序執行所有定義好的錢包操作
+			for _, action := range flow.Actions {
+				if err := action(ctx, &req, wSvc); err != nil {
+					return err
+				}
+			}
+
+			wallets = append(wallets, wSvc)
+		}
+
+		// 3️⃣ 準備寫入 Transaction 主檔
+		txRecord := &entity.Transaction{
+			OrderID:             req.ReferenceOrderID,
+			TransactionID:       uuid.New().String(),
+			UID:                 req.FromUID,
+			ToUID:               req.ToUID,
+			Asset:               req.Asset,
+			TxType:              req.TxType,
+			Amount:              req.Amount,
+			Brand:               req.Brand,
+			PostTransferBalance: req.PostTransferBalance,
+			BusinessType:        req.Business.ToInt8(),
+			Status:              wallet.EnableTrue,
+			DueTime:             0,
+		}
+
+		// 4️⃣ TODO 計算 DueTime （T+N 結算時間）
+
+		// 5️⃣ 寫入 Transaction 主檔
+		if err := use.TransactionRepo.Insert(ctx, txRecord); err != nil {
+			return fmt.Errorf("TransactionRepo.Insert 失敗: %w", err)
+		}
+
+		// 6️⃣ 聚合所有 wallet 內的交易歷程
+		var walletTxs []entity.WalletTransaction
+		for _, w := range wallets {
+			walletTxs = append(
+				walletTxs,
+				w.PrepareTransactions(
+					txRecord.ID,
+					txRecord.OrderID,
+					req.Brand,
+					req.Business,
+				)...,
+			)
+		}
+
+		// 7️⃣ 批次寫入所有 WalletTransaction
+		if err := use.WalletTransactionRepo.Create(ctx, db, walletTxs); err != nil {
+			return fmt.Errorf("WalletTransactionRepository.Create 失敗: %w", err)
+		}
+
+		// 8️⃣ 最後才真正把錢包的餘額更新到資料庫（同一事務）
+		for _, wSvc := range wallets {
+			if err := wSvc.PersistBalances(ctx); err != nil {
+				return err
+			}
+			if err := wSvc.PersistOrderBalances(ctx); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	})
+}
+
+// checkWalletExistence 檢查錢包是否存在於內存中
+func (use *WalletUseCase) checkWalletExistence(uidAsset uidAssetKey) bool {
+	use.RLock()
+	defer use.RUnlock()
+	rk := fmt.Sprintf("%s-%s", uidAsset.uid, uidAsset.asset)
+	_, exists := use.existUIDAsset[rk]
+
+	return exists
+}
+
+// markWalletAsExisting 標記錢包為存在
+func (use *WalletUseCase) markWalletAsExisting(uidAsset uidAssetKey) {
+	use.Lock()
+	defer use.Unlock()
+	rk := fmt.Sprintf("%s-%s", uidAsset.uid, uidAsset.asset)
+	use.existUIDAsset[rk] = struct{}{}
+}
--- a/readme.md
+++ b/readme.md
@ -0,0 +1,54 @@
+
+		// 充值-增加可用餘額
+		v1.POST("deposit", wallet.Deposit)
+
+		// 充值-增加限制餘額
+		v1.POST("deposit/unconfirmed", wallet.DepositUnconfirmed)
+
+		// 提現-減少可用餘額
+		v1.POST("withdraw", wallet.Withdraw)
+
+		// 凍結-減少可用餘額，加在凍結餘額
+		v1.POST("freeze", wallet.Freeze)
+
+		// 追加凍結(原凍結金額上)-減少可用餘額，加在凍結餘額
+		v1.POST("freeze/append", wallet.AppendFreeze)
+
+		// 解凍-減少凍結餘額
+		v1.POST("unfreeze", wallet.UnFreeze)
+
+		// rollback凍結-減少凍結餘額，加回可用餘額，不可指定金額
+		v1.POST("freeze/rollback", wallet.RollbackFreeze)
+
+		// rollback凍結-rollback凍結餘額，指定金額加回可用餘額
+		v1.POST("freeze/rollback/add", wallet.RollbackFreezeAddAvailable)
+
+		// 取消凍結-減少凍結餘額，加回可用餘額，可指定金額
+		v1.POST("freeze/cancel", wallet.CancelFreeze)
+
+		// 限制-減少凍結餘額，加別人限制餘額
+		v1.POST("unconfirmed", wallet.Unconfirmed)
+
+		// 合約劃轉
+		v1.POST("contract/transfer", wallet.ContractTransfer)
+
+		// 系統劃轉
+		v1.POST("system-transfer", wallet.systemTransfer)
+
+		// 餘額
+		v1.GET("balance/:uid/user", wallet.Balance)
+
+		// 歷史餘額
+		v1.GET("balance/history/:uid/user", wallet.HistoryBalance)
+
+		// 資產
+		v1.GET("assets/balance/:uid/user", wallet.BalanceByAssets)
+
+		// 檢查餘額
+		v1.POST("balance", wallet.CheckBalance)
+
+		// 取得今日已提現金額
+		v1.GET("withdraw/today/user/:uid", wallet.GetTodayWithdraw)
+
+		// 合約平台餘額
+		v1.GET("balance/contract/system", wallet.ContractSystemBalance)
Author	SHA1	Message	Date
王性驊	47fb3139c2	feat: add wallet translation	2025-04-18 17:10:40 +08:00
王性驊	4f6262d489	feat: add wallet repo	2025-04-17 17:00:42 +08:00
王性驊	45fab245d9	fix: 修正衝突	2025-04-16 17:33:29 +08:00
王性驊	5214ea2283	feat: add mysql lib	2025-04-16 17:24:54 +08:00
王性驊	59064b0a69	add wallet and user wallet	2025-04-11 17:10:34 +08:00
王性驊	4cb6faefdc	feat: update service	2025-04-11 07:23:42 +08:00
王性驊	2f5b04de29	add wallet	2025-04-10 17:33:09 +08:00
				`@ -0,0 +1 @@`
				CREATE DATABASE IF NOT EXISTS `digimon_wallet`;