package domain

import (
	"context"

	tokenDomain "apps/backend/internal/module/token/domain"
)

// AccountUseCase — stand-alone AccountUseCase 完整能力（數字 uid）。
type AccountUseCase interface {
	// 建立 / 登入
	CreateUserAccount(ctx context.Context, req CreateLoginUserRequest) (*Member, *tokenDomain.TokenPair, error)
	LoginPassword(ctx context.Context, loginID, password, platform string) (*Member, *tokenDomain.TokenPair, error)
	LoginOAuth(ctx context.Context, platform, subject, email, displayName string) (*Member, *tokenDomain.TokenPair, error)

	// 查詢
	GetUIDByAccount(ctx context.Context, account, platform string) (uid int64, err error)
	GetUserAccountInfo(ctx context.Context, account, platform string) (*Identity, error)
	GetUserInfo(ctx context.Context, uid int64) (*Member, error)
	ListMember(ctx context.Context, page, pageSize int, query, status string) ([]*Member, int64, error)
	ListIdentities(ctx context.Context, uid int64) ([]*Identity, error)
	FindLoginIDsByUID(ctx context.Context, uid int64) ([]*Identity, error)

	// 更新
	UpdateUserToken(ctx context.Context, loginID, platform, newPassword string) error
	UpdateUserInfo(ctx context.Context, uid int64, patch *UpdateUserInfoPatch) (*Member, error)
	UpdateStatus(ctx context.Context, uid int64, status string) (*Member, error)

	// Session
	Refresh(ctx context.Context, refreshToken string) (*tokenDomain.TokenPair, error)
	Logout(refreshToken string)
	LogoutAll(ctx context.Context, uid int64) error

	// Binding
	BindAccount(ctx context.Context, uid int64, loginID, platform, accountType, password string) (*Identity, error)
	UnbindAccount(ctx context.Context, uid int64, loginID, platform string) error
	BindVerifyEmail(ctx context.Context, uid int64, email string) error
	BindVerifyPhone(ctx context.Context, uid int64, phone string) error

	// Verify codes
	GenerateCode(ctx context.Context, loginID, codeType string) (code string, err error)
	VerifyCode(ctx context.Context, loginID, codeType, code string, consume bool) error

	// Platform password check (email/phone password)
	VerifyPlatformAuthResult(ctx context.Context, loginID, platform, password string) (bool, error)

	// OAuth providers
	VerifyGoogleIDToken(ctx context.Context, idToken string) (subject, email, name string, err error)
	LineCodeToProfile(ctx context.Context, code, redirectURI string) (subject, displayName, email string, err error)

	// Convenience Harbor Desk paths
	RegisterEmail(ctx context.Context, email, password, displayName string) (*Member, *tokenDomain.TokenPair, error)
	Me(ctx context.Context, uid int64) (*Member, error)
	// RequestPasswordReset returns code or ErrEmailNotRegistered if unknown email.
	RequestPasswordReset(ctx context.Context, email string) (code string, err error)
	ResetPassword(ctx context.Context, email, code, newPassword string) error
	SendEmailCode(ctx context.Context, uid int64) (string, error)
	VerifyEmailCode(ctx context.Context, uid int64, code string) (*Member, error)
}

// CreateLoginUserRequest — stand-alone create account
type CreateLoginUserRequest struct {
	LoginID     string
	Platform    string // platform|google|line|apple
	AccountType string // email|phone|platform
	Password    string // for platform
	DisplayName string
	Email       string // profile email if oauth
	Phone       string
}

// UpdateUserInfoPatch — stand-alone UpdateUserInfoRequest
type UpdateUserInfoPatch struct {
	DisplayName       *string
	Nickname          *string
	FullName          *string
	AvatarURL         *string
	Bio               *string
	Timezone          *string
	NotifyEmail       *bool
	GenderCode        *int8
	Birthdate         *int64
	National          *string
	Address           *string
	PostCode          *string
	PreferredLanguage *string
	Currency          *string
	Email             *string
	Phone             *string
	CurrentPassword   *string
	NewPassword       *string
}