// Package service 定义业务逻辑层接口
package service

import (
	"carrotskin/internal/model"
	"carrotskin/pkg/storage"
	"context"

	"go.uber.org/zap"
)

// UserService 用户服务接口
type UserService interface {
	// 用户认证
	Register(username, password, email, avatar string) (*model.User, string, error)
	Login(usernameOrEmail, password, ipAddress, userAgent string) (*model.User, string, error)
	
	// 用户查询
	GetByID(id int64) (*model.User, error)
	GetByEmail(email string) (*model.User, error)
	
	// 用户更新
	UpdateInfo(user *model.User) error
	UpdateAvatar(userID int64, avatarURL string) error
	ChangePassword(userID int64, oldPassword, newPassword string) error
	ResetPassword(email, newPassword string) error
	ChangeEmail(userID int64, newEmail string) error
	
	// URL验证
	ValidateAvatarURL(avatarURL string) error
	
	// 配置获取
	GetMaxProfilesPerUser() int
	GetMaxTexturesPerUser() int
}

// ProfileService 档案服务接口
type ProfileService interface {
	// 档案CRUD
	Create(userID int64, name string) (*model.Profile, error)
	GetByUUID(uuid string) (*model.Profile, error)
	GetByUserID(userID int64) ([]*model.Profile, error)
	Update(uuid string, userID int64, name *string, skinID, capeID *int64) (*model.Profile, error)
	Delete(uuid string, userID int64) error
	
	// 档案状态
	SetActive(uuid string, userID int64) error
	CheckLimit(userID int64, maxProfiles int) error
	
	// 批量查询
	GetByNames(names []string) ([]*model.Profile, error)
	GetByProfileName(name string) (*model.Profile, error)
}

// TextureService 材质服务接口
type TextureService interface {
	// 材质CRUD
	Create(uploaderID int64, name, description, textureType, url, hash string, size int, isPublic, isSlim bool) (*model.Texture, error)
	GetByID(id int64) (*model.Texture, error)
	GetByUserID(uploaderID int64, page, pageSize int) ([]*model.Texture, int64, error)
	Search(keyword string, textureType model.TextureType, publicOnly bool, page, pageSize int) ([]*model.Texture, int64, error)
	Update(textureID, uploaderID int64, name, description string, isPublic *bool) (*model.Texture, error)
	Delete(textureID, uploaderID int64) error
	
	// 收藏
	ToggleFavorite(userID, textureID int64) (bool, error)
	GetUserFavorites(userID int64, page, pageSize int) ([]*model.Texture, int64, error)
	
	// 限制检查
	CheckUploadLimit(uploaderID int64, maxTextures int) error
}

// TokenService 令牌服务接口
type TokenService interface {
	// 令牌管理
	Create(userID int64, uuid, clientToken string) (*model.Profile, []*model.Profile, string, string, error)
	Validate(accessToken, clientToken string) bool
	Refresh(accessToken, clientToken, selectedProfileID string) (string, string, error)
	Invalidate(accessToken string)
	InvalidateUserTokens(userID int64)
	
	// 令牌查询
	GetUUIDByAccessToken(accessToken string) (string, error)
	GetUserIDByAccessToken(accessToken string) (int64, error)
}

// VerificationService 验证码服务接口
type VerificationService interface {
	SendCode(ctx context.Context, email, codeType string) error
	VerifyCode(ctx context.Context, email, code, codeType string) error
}

// CaptchaService 滑动验证码服务接口
type CaptchaService interface {
	Generate(ctx context.Context) (masterImg, tileImg, captchaID string, y int, err error)
	Verify(ctx context.Context, dx int, captchaID string) (bool, error)
}

// UploadService 上传服务接口
type UploadService interface {
	GenerateAvatarUploadURL(ctx context.Context, userID int64, fileName string) (*storage.PresignedPostPolicyResult, error)
	GenerateTextureUploadURL(ctx context.Context, userID int64, fileName, textureType string) (*storage.PresignedPostPolicyResult, error)
}

// YggdrasilService Yggdrasil服务接口
type YggdrasilService interface {
	// 用户认证
	GetUserIDByEmail(email string) (int64, error)
	VerifyPassword(password string, userID int64) error
	
	// 会话管理
	JoinServer(serverID, accessToken, selectedProfile, ip string) error
	HasJoinedServer(serverID, username, ip string) error
	
	// 密码管理
	ResetYggdrasilPassword(userID int64) (string, error)
	
	// 序列化
	SerializeProfile(profile model.Profile) map[string]interface{}
	SerializeUser(user *model.User, uuid string) map[string]interface{}
	
	// 证书
	GeneratePlayerCertificate(uuid string) (map[string]interface{}, error)
	GetPublicKey() (string, error)
}

// Services 服务集合
type Services struct {
	User         UserService
	Profile      ProfileService
	Texture      TextureService
	Token        TokenService
	Verification VerificationService
	Captcha      CaptchaService
	Upload       UploadService
	Yggdrasil    YggdrasilService
}

// ServiceDeps 服务依赖
type ServiceDeps struct {
	Logger  *zap.Logger
	Storage *storage.StorageClient
}