package orderservicelogic

import (
	"app-cloudep-order-server/gen_result/pb/order"
	"app-cloudep-order-server/internal/domain"
	model "app-cloudep-order-server/internal/model/mongo"
	"context"
	"fmt"
	"time"

	ers "code.30cm.net/digimon/library-go/errs"
	"github.com/shopspring/decimal"

	"app-cloudep-order-server/internal/svc"

	"github.com/zeromicro/go-zero/core/logx"
)

type CreateOrderLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewCreateOrderLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateOrderLogic {
	return &CreateOrderLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

type createOrderReq struct { // 訂單ID
	BusinessID           string           `json:"business_id" validate:"required"`                                      // 訂單業務流水號
	OrderType            int8             `json:"order_type" validate:"required"`                                       // 訂單類型
	OrderStatus          int8             `json:"order_status" validate:"oneof=0 1 2 3 4 5 6 7 8 9 10 11"`              // 訂單狀態
	Brand                string           `json:"brand" validate:"required"`                                            // 下單平台
	OrderUID             string           `json:"order_uid" validate:"required"`                                        // 下單用戶 UID
	ReferenceID          string           `json:"reference_id" validate:"required"`                                     // 訂單來源
	Count                decimal.Decimal  `json:"count" validate:"required,decimalGt=0"`                                // 訂單數量
	OrderFee             decimal.Decimal  `json:"order_fee" validate:"required,decimalGte=0"`                           // 訂單手續費
	Amount               decimal.Decimal  `json:"amount" validate:"required,decimalGte=0"`                              // 單價
	ReferenceBrand       *string          `json:"reference_brand,omitempty" validate:"omitempty"`                       // 訂單來源平台
	ReferenceUID         *string          `json:"reference_uid,omitempty" validate:"omitempty"`                         // 訂單來源用戶 UID
	WalletStatus         *int64           `json:"wallet_status,omitempty" validate:"omitempty,oneof=1 2 3 4 5 6 7"`     // 交易金額狀態
	ThreePartyStatus     *int64           `json:"three_party_status,omitempty" validate:"omitempty,oneof=1 2 3"`        // 三方請求狀態
	DirectionType        *int64           `json:"direction_type,omitempty" validate:"omitempty,oneof=1 2"`              // 交易方向
	CryptoType           *string          `json:"crypto_type,omitempty" validate:"omitempty"`                           // 交易幣種
	ThirdPartyFee        *decimal.Decimal `json:"third_party_fee,omitempty" validate:"omitempty,decimalGte=0"`          // 第三方手續費
	CryptoToUSDTRate     *decimal.Decimal `json:"crypto_to_usdt_rate,omitempty" validate:"omitempty,decimalGte=0"`      // 交易幣種對 USDT 匯率
	FiatToUSDRate        *decimal.Decimal `json:"fiat_to_usd_rate,omitempty" validate:"omitempty,decimalGte=0"`         // 法幣對 USD 匯率
	FeeCryptoToUSDTRate  *decimal.Decimal `json:"fee_crypto_to_usdt_rate,omitempty" validate:"omitempty,decimalGte=0"`  // 手續費幣種對 USDT 匯率
	USDTToCryptoTypeRate *decimal.Decimal `json:"usdt_to_crypto_type_rate,omitempty" validate:"omitempty,decimalGte=0"` // USDT 對交易幣種匯率
	PaymentFiat          *string          `json:"payment_fiat,omitempty" validate:"omitempty"`                          // 支付法幣
	PaymentUnitPrice     *decimal.Decimal `json:"payment_unit_price,omitempty" validate:"omitempty,decimalGte=0"`       // crypto 單價
	PaymentTemplateID    *string          `json:"payment_template_id,omitempty" validate:"omitempty"`                   // 支付方式配置 ID
	OrderArrivalTime     *int64           `json:"order_arrival_time,omitempty" validate:"omitempty"`                    // 訂單到帳時間
	OrderPaymentTime     *int64           `json:"order_payment_time,omitempty" validate:"omitempty"`                    // 訂單付款時間
	UnpaidTimeoutSecond  *int64           `json:"unpaid_timeout_second,omitempty" validate:"omitempty,decimalGte=0"`    // 支付期限秒數
	ChainType            *string          `json:"chain_type,omitempty" validate:"omitempty"`                            // 主網類型
	TxHash               *string          `json:"tx_hash,omitempty" validate:"omitempty"`                               // 交易哈希
	FromAddress          *string          `json:"from_address,omitempty" validate:"omitempty"`                          // 來源地址
	ToAddress            *string          `json:"to_address,omitempty" validate:"omitempty"`                            // 目標地址
	ChainFee             *decimal.Decimal `json:"chain_fee,omitempty" validate:"omitempty,decimalGte=0"`                // 鏈上交易手續費
	ChainFeeCrypto       *string          `json:"chain_fee_crypto,omitempty" validate:"omitempty"`                      // 鏈上手續費使用幣別
	Memo                 *string          `json:"memo,omitempty" validate:"omitempty"`                                  // 鏈上備註
	OrderNote            *string          `json:"order_note,omitempty" validate:"omitempty"`
}

// CreateOrder 建立訂單
func (l *CreateOrderLogic) CreateOrder(in *order.CreateOrderReq) (*order.OKResp, error) {
	req, err := buildCreateOrderReq(in)
	if err != nil {
		// 錯誤代碼 06-011-00
		fmt.Println("1", err)
		return nil, ers.InvalidFormat(err.Error())
	}

	fmt.Println(req)
	// 驗證資料
	if err := l.svcCtx.Validate.ValidateAll(req); err != nil {
		// 錯誤代碼 06-011-00
		fmt.Println("2", err)
		return nil, ers.InvalidFormat(err.Error())
	}
	fmt.Println(req)
	now := time.Now().UTC().UnixNano()
	// 插入資料庫
	o := &model.Order{
		UpdateTime:  now,
		CreateTime:  now,
		BusinessID:  req.BusinessID,
		OrderType:   req.OrderType,
		OrderStatus: req.OrderStatus,
		Brand:       req.Brand,
		OrderUID:    req.OrderUID,
		ReferenceID: req.ReferenceID,
		Count:       req.Count,
		OrderFee:    req.OrderFee,
		Amount:      req.Amount,
		// 下面的是未來擴充用，加密貨幣用，或者幣別轉換用，普通訂單用不到
		ReferenceBrand:       req.ReferenceBrand,
		ReferenceUID:         req.ReferenceUID,
		WalletStatus:         req.WalletStatus,
		ThreePartyStatus:     req.ThreePartyStatus,
		DirectionType:        req.DirectionType,
		CryptoType:           req.CryptoType,
		ThirdPartyFee:        req.ThirdPartyFee,
		CryptoToUSDTRate:     req.CryptoToUSDTRate,
		FiatToUSDRate:        req.FiatToUSDRate,
		FeeCryptoToUSDTRate:  req.FeeCryptoToUSDTRate,
		USDTToCryptoTypeRate: req.USDTToCryptoTypeRate,
		PaymentFiat:          req.PaymentFiat,
		PaymentUnitPrice:     req.PaymentUnitPrice,
		PaymentTemplateID:    req.PaymentTemplateID,
		OrderArrivalTime:     req.OrderArrivalTime,
		OrderPaymentTime:     req.OrderPaymentTime,
		UnpaidTimeoutSecond:  req.UnpaidTimeoutSecond,
		ChainType:            req.ChainType,
		TxHash:               req.TxHash,
		FromAddress:          req.FromAddress,
		ToAddress:            req.ToAddress,
		ChainFee:             req.ChainFee,
		ChainFeeCrypto:       req.ChainFeeCrypto,
		Memo:                 req.Memo,
		OrderNote:            req.OrderNote,
	}
	err = l.svcCtx.OrderModel.Insert(l.ctx, o)

	if err != nil {
		// 錯誤代碼 06-021-01
		e := domain.CommentErrorL(
			domain.CreateOrderErrorCode,
			logx.WithContext(l.ctx),
			[]logx.LogField{
				{Key: "req", Value: in},
				{Key: "func", Value: "OrderModel.Insert"},
				{Key: "err", Value: err},
			},
			"failed to insert order into mongo:").Wrap(err)

		return nil, e
	}

	return &order.OKResp{}, nil
}

//nolint:gocyclo,gocognit
func buildCreateOrderReq(in *order.CreateOrderReq) (*createOrderReq, error) {
	createOrderReq := &createOrderReq{
		BusinessID:  in.BusinessId,
		OrderType:   int8(in.OrderType),
		OrderStatus: int8(in.OrderStatus),
		Brand:       in.Brand,
		OrderUID:    in.OrderUid,
		ReferenceID: in.ReferenceId,
	}

	var err error
	// 只有當 Count, OrderFee, Amount 不為空時才進行轉換和設置
	if in.Count != "" {
		createOrderReq.Count, err = decimal.NewFromString(in.Count)
		if err != nil {
			return nil, err
		}
	}
	if in.OrderFee != "" {
		createOrderReq.OrderFee, err = decimal.NewFromString(in.OrderFee)
		if err != nil {
			return nil, err
		}
	}
	if in.Amount != "" {
		createOrderReq.Amount, err = decimal.NewFromString(in.Amount)
		if err != nil {
			return nil, err
		}
	}

	// 判斷可選字段，只有不為 nil 才設置
	if in.ReferenceBrand != nil {
		createOrderReq.ReferenceBrand = in.ReferenceBrand
	}
	if in.ReferenceUid != nil {
		createOrderReq.ReferenceUID = in.ReferenceUid
	}
	if in.WalletStatus != nil {
		createOrderReq.WalletStatus = in.WalletStatus
	}
	if in.ThreePartyStatus != nil {
		createOrderReq.ThreePartyStatus = in.ThreePartyStatus
	}
	if in.DirectionType != nil {
		createOrderReq.DirectionType = in.DirectionType
	}
	if in.CryptoType != nil {
		createOrderReq.CryptoType = in.CryptoType
	}
	if in.ThirdPartyFee != nil && *in.ThirdPartyFee != "" {
		createOrderReq.ThirdPartyFee = decimalPtrFromString(*in.ThirdPartyFee)
	}
	if in.CryptoToUsdtRate != nil && *in.CryptoToUsdtRate != "" {
		createOrderReq.CryptoToUSDTRate = decimalPtrFromString(*in.CryptoToUsdtRate)
	}
	if in.FiatToUsdRate != nil && *in.FiatToUsdRate != "" {
		createOrderReq.FiatToUSDRate = decimalPtrFromString(*in.FiatToUsdRate)
	}
	if in.FeeCryptoToUsdtRate != nil && *in.FeeCryptoToUsdtRate != "" {
		createOrderReq.FeeCryptoToUSDTRate = decimalPtrFromString(*in.FeeCryptoToUsdtRate)
	}
	if in.UsdtToCryptoTypeRate != nil && *in.UsdtToCryptoTypeRate != "" {
		createOrderReq.USDTToCryptoTypeRate = decimalPtrFromString(*in.UsdtToCryptoTypeRate)
	}
	if in.PaymentFiat != nil {
		createOrderReq.PaymentFiat = in.PaymentFiat
	}
	if in.PaymentUnitPrice != nil && *in.PaymentUnitPrice != "" {
		createOrderReq.PaymentUnitPrice = decimalPtrFromString(*in.PaymentUnitPrice)
	}
	if in.PaymentTemplateId != nil {
		createOrderReq.PaymentTemplateID = in.PaymentTemplateId
	}
	if in.OrderArrivalTime != nil {
		createOrderReq.OrderArrivalTime = in.OrderArrivalTime
	}
	if in.OrderPaymentTime != nil {
		createOrderReq.OrderPaymentTime = in.OrderPaymentTime
	}
	if in.UnpaidTimeoutSecond != nil {
		createOrderReq.UnpaidTimeoutSecond = in.UnpaidTimeoutSecond
	}
	if in.ChainType != nil {
		createOrderReq.ChainType = in.ChainType
	}
	if in.TxHash != nil {
		createOrderReq.TxHash = in.TxHash
	}
	if in.FromAddress != nil {
		createOrderReq.FromAddress = in.FromAddress
	}
	if in.ToAddress != nil {
		createOrderReq.ToAddress = in.ToAddress
	}
	if in.ChainFee != nil && *in.ChainFee != "" {
		createOrderReq.ChainFee = decimalPtrFromString(*in.ChainFee)
	}
	if in.ChainFeeCrypto != nil {
		createOrderReq.ChainFeeCrypto = in.ChainFeeCrypto
	}
	if in.Memo != nil {
		createOrderReq.Memo = in.Memo
	}
	if in.OrderNote != nil {
		createOrderReq.OrderNote = in.OrderNote
	}

	return createOrderReq, nil
}

// Helper function for decimal conversion with nil support
func decimalPtrFromString(val string) *decimal.Decimal {
	if val == "" {
		return nil
	}
	dec, err := decimal.NewFromString(val)
	if err != nil {
		return nil
	}

	return &dec
}