package usecase

import (
	"context"
	"encoding/json"
	"time"

	"haixun-backend/internal/library/placement"
	missionentity "haixun-backend/internal/model/copy_mission/domain/entity"
	"haixun-backend/internal/model/threads_account/domain/entity"
)

type AccountSummary struct {
	ID                string
	DisplayName       string
	Username          string
	ThreadsUserID     string
	PersonaID         string
	BrowserConnected  bool
	ApiConnected      bool
	APITokenExpiresAt int64
	Status            string
	CreateAt          int64
	UpdateAt          int64
}

type TokenRefreshCandidate struct {
	AccountID string
	TenantID  string
	OwnerUID  string
	ExpiresAt int64
}

type ConnectionPrefs struct {
	SearchViaApi     bool
	SearchSourceMode string
	PublishViaApi    bool
	DevMode          bool
	ScrapeReplies    bool
	RepliesPerPost   int
	PublishHeaded    bool
	PlaywrightDebug  bool
}

type ConnectionData struct {
	AccountID        string
	AccountName      string
	Username         string
	BrowserConnected bool
	ApiConnected     bool
	Prefs            ConnectionPrefs
}

type CreateRequest struct {
	TenantID    string
	OwnerUID    string
	DisplayName string
	Activate    bool
}

type UpdateAccountRequest struct {
	TenantID    string
	OwnerUID    string
	AccountID   string
	DisplayName *string
	PersonaID   *string
}

type UpdateConnectionRequest struct {
	TenantID  string
	OwnerUID  string
	AccountID string
	Prefs     ConnectionPrefsPatch
}

type ImportBrowserSessionRequest struct {
	TenantID     string
	OwnerUID     string
	AccountID    string
	StorageState string
}

type ImportBrowserSessionResult struct {
	AccountID string
	Username  string
	Synced    bool
	Valid     bool
	Message   string
	UpdateAt  int64
}

type SecretsData struct {
	AccountID         string
	APIAccessToken    string
	APITokenExpiresAt int64
	UpdateAt          int64
}

type BrowserSessionData struct {
	AccountID    string
	StorageState string
	UpdateAt     int64
}

type AiSettings struct {
	AccountID         string
	Provider          string
	Model             string
	ResearchProvider  string
	ResearchModel     string
	ApiKeys           map[string]string
	ApiKeysConfigured map[string]bool
}

type AiSettingsPatch struct {
	Provider         *string
	Model            *string
	ResearchProvider *string
	ResearchModel    *string
	ApiKeys          map[string]string
}

// WorkerAiCredential carries raw provider settings for internal workers (never expose to clients).
type WorkerAiCredential struct {
	Provider string
	Model    string
	APIKey   string
}

type ThreadsPublishCredential struct {
	AccountID     string
	ThreadsUserID string
	AccessToken   string
}

type ConnectionPrefsPatch struct {
	SearchViaApi     *bool
	SearchSourceMode *string
	PublishViaApi    *bool
	DevMode          *bool
	ScrapeReplies    *bool
	RepliesPerPost   *int
	PublishHeaded    *bool
	PlaywrightDebug  *bool
}

type ListResult struct {
	List            []AccountSummary
	ActiveAccountID string
}

type OAuthStartResult struct {
	AuthorizeURL string
	State        string
	AccountID    string
}

type OAuthCallbackResult struct {
	AccountID     string
	Username      string
	ThreadsUserID string
	RedirectURL   string
}

type OAuthDebugLogEntry struct {
	At        int64
	Level     string
	Stage     string
	AccountID string
	Message   string
}

type APISmokeTestItem struct {
	Scope   string
	Name    string
	Status  string // ok, error, skip, manual
	Message string
	Count   int
}

type APIPlaygroundRequest struct {
	Action        string
	Query         string
	Username      string
	MediaID       string
	ReplyID       string
	ReplyToID     string
	Text          string
	LocationQuery string
	Limit         int
	Hide          bool
	SearchType    string
}

type APIPlaygroundResult struct {
	Action  string
	Ok      bool
	Message string
	Data    json.RawMessage
}

type PostMetricCapability struct {
	Scope     string
	Name      string
	Metrics   []string
	Trackable bool
	Note      string
}

type InsightMetricItem struct {
	Name  string
	Value int
}

type AccountInsightsBlock struct {
	Status  string
	Message string
	Metrics []InsightMetricItem
}

type PostPerformanceItem struct {
	MediaID         string
	Text            string
	Permalink       string
	Timestamp       string
	LikeCount       int
	ReplyCount      int
	RepostCount     int
	QuoteCount      int
	Views           int
	Shares          int
	InsightsStatus  string
	InsightsMessage string
}

type PostPerformanceResult struct {
	AccountID       string
	Username        string
	ThreadsUserID   string
	FetchedAt       int64
	Capabilities    []PostMetricCapability
	AccountInsights AccountInsightsBlock
	Posts           []PostPerformanceItem
}

type UpsertKnownAccountsFromScanRequest struct {
	TenantID        string
	OwnerUID        string
	AccountID       string
	MissionID       string
	PersonaID       string
	SelectedTags    []string
	SimilarAccounts []missionentity.SimilarAccount
}

type UseCase interface {
	List(ctx context.Context, tenantID, ownerUID string) (*ListResult, error)
	Create(ctx context.Context, req CreateRequest) (*AccountSummary, error)
	Get(ctx context.Context, tenantID, ownerUID, accountID string) (*AccountSummary, error)
	Update(ctx context.Context, req UpdateAccountRequest) (*AccountSummary, error)
	Activate(ctx context.Context, tenantID, ownerUID, accountID string) error
	Delete(ctx context.Context, tenantID, ownerUID, accountID string) error
	GetConnection(ctx context.Context, tenantID, ownerUID, accountID string) (*ConnectionData, error)
	UpdateConnection(ctx context.Context, req UpdateConnectionRequest) (*ConnectionData, error)
	ImportBrowserSession(ctx context.Context, req ImportBrowserSessionRequest) (*ImportBrowserSessionResult, error)
	GetBrowserSession(ctx context.Context, tenantID, ownerUID, accountID string) (*BrowserSessionData, error)
	GetAiSettings(ctx context.Context, tenantID, ownerUID, accountID string) (*AiSettings, error)
	UpdateAiSettings(ctx context.Context, tenantID, ownerUID, accountID string, patch AiSettingsPatch) (*AiSettings, error)
	ResolveAiProviderAPIKey(ctx context.Context, tenantID, ownerUID, accountID, provider, overrideKey string) (string, error)
	ResolveWorkerAiCredential(ctx context.Context, tenantID, ownerUID, accountID string) (*WorkerAiCredential, error)
	ResolveMemberAiCredential(ctx context.Context, tenantID, ownerUID string) (*WorkerAiCredential, error)
	ResolveMemberResearchAiCredential(ctx context.Context, tenantID, ownerUID string) (*WorkerAiCredential, error)
	ResolveMemberPlacementContext(ctx context.Context, tenantID, ownerUID string, research placement.ResearchSettings) (placement.MemberContext, error)
	ResolveMemberThreadsPublishCredential(ctx context.Context, tenantID, ownerUID string) (*ThreadsPublishCredential, error)
	SaveAPIAccessToken(ctx context.Context, accountID, accessToken string, expiresAt int64) (*SecretsData, error)
	StartThreadsOAuth(ctx context.Context, tenantID, ownerUID, accountID string) (*OAuthStartResult, error)
	CompleteThreadsOAuthCallback(ctx context.Context, code, state string) (*OAuthCallbackResult, error)
	DisconnectThreadsAPI(ctx context.Context, tenantID, ownerUID, accountID string) (*AccountSummary, error)
	ListOAuthDebugLogs(limit int) []OAuthDebugLogEntry
	RecordOAuthDebug(level, stage, accountID, message string)
	RunAPISmokeTest(ctx context.Context, tenantID, ownerUID, accountID string) ([]APISmokeTestItem, error)
	RunAPIPlayground(ctx context.Context, tenantID, ownerUID, accountID string, req APIPlaygroundRequest) (*APIPlaygroundResult, error)
	ListPostPerformance(ctx context.Context, tenantID, ownerUID, accountID string, limit int) (*PostPerformanceResult, error)
	ResolveAccountAPIAccessToken(ctx context.Context, tenantID, ownerUID, accountID string) (string, error)
	RefreshAccountAPIAccessToken(ctx context.Context, tenantID, ownerUID, accountID string) (*SecretsData, error)
	ListTokenRefreshCandidates(ctx context.Context, leadTime time.Duration) ([]TokenRefreshCandidate, error)
	ResolveMemberCapabilities(ctx context.Context, tenantID, ownerUID string, research placement.ResearchSettings) (placement.MemberCapabilities, error)
	GetKnownAccounts(ctx context.Context, tenantID, ownerUID, accountID string) (map[string]entity.KnownAccountProfile, error)
	UpsertKnownAccountsFromScan(ctx context.Context, req UpsertKnownAccountsFromScanRequest) error
}