package service

import (
	"carrotskin/internal/model"
	"carrotskin/internal/repository"
	"carrotskin/pkg/redis"
	"carrotskin/pkg/utils"
	"context"
	"errors"
	"fmt"

	"go.uber.org/zap"

	"gorm.io/gorm"
)

// yggdrasilServiceComposite 组合服务，保持接口兼容性
// 将认证、会话、序列化、证书服务组合在一起
type yggdrasilServiceComposite struct {
	authService          *yggdrasilAuthService
	sessionService       SessionService
	serializationService SerializationService
	certificateService   CertificateService
	profileRepo          repository.ProfileRepository
	tokenService         TokenService // 使用TokenService接口，不直接依赖TokenRepository
	logger               *zap.Logger
}

// NewYggdrasilServiceComposite 创建组合服务实例
func NewYggdrasilServiceComposite(
	db *gorm.DB,
	userRepo repository.UserRepository,
	profileRepo repository.ProfileRepository,
	yggdrasilRepo repository.YggdrasilRepository,
	signatureService *SignatureService,
	redisClient *redis.Client,
	logger *zap.Logger,
	tokenService TokenService, // 新增：TokenService接口
) YggdrasilService {
	// 创建各个专门的服务
	authService := NewYggdrasilAuthService(db, userRepo, yggdrasilRepo, logger)
	sessionService := NewSessionService(redisClient, logger)
	serializationService := NewSerializationService(
		repository.NewTextureRepository(db),
		signatureService,
		logger,
	)
	certificateService := NewCertificateService(profileRepo, signatureService, logger)

	return &yggdrasilServiceComposite{
		authService:          authService,
		sessionService:       sessionService,
		serializationService: serializationService,
		certificateService:   certificateService,
		profileRepo:          profileRepo,
		tokenService:         tokenService,
		logger:               logger,
	}
}

// GetUserIDByEmail 获取用户ID（通过邮箱）
func (s *yggdrasilServiceComposite) GetUserIDByEmail(ctx context.Context, email string) (int64, error) {
	return s.authService.GetUserIDByEmail(ctx, email)
}

// VerifyPassword 验证密码
func (s *yggdrasilServiceComposite) VerifyPassword(ctx context.Context, password string, userID int64) error {
	return s.authService.VerifyPassword(ctx, password, userID)
}

// ResetYggdrasilPassword 重置Yggdrasil密码
func (s *yggdrasilServiceComposite) ResetYggdrasilPassword(ctx context.Context, userID int64) (string, error) {
	return s.authService.ResetYggdrasilPassword(ctx, userID)
}

// JoinServer 加入服务器
func (s *yggdrasilServiceComposite) JoinServer(ctx context.Context, serverID, accessToken, selectedProfile, ip string) error {
	// 通过TokenService验证Token并获取UUID
	uuid, err := s.tokenService.GetUUIDByAccessToken(ctx, accessToken)
	if err != nil {
		s.logger.Error("验证Token失败",
			zap.Error(err),
			zap.String("accessToken", accessToken),
		)
		return fmt.Errorf("验证Token失败: %w", err)
	}

	// 格式化UUID并验证与Token关联的配置文件
	formattedProfile := utils.FormatUUID(selectedProfile)
	if uuid != formattedProfile {
		return errors.New("selectedProfile与Token不匹配")
	}

	// 获取Profile以获取用户名
	profile, err := s.profileRepo.FindByUUID(ctx, formattedProfile)
	if err != nil {
		s.logger.Error("获取Profile失败",
			zap.Error(err),
			zap.String("uuid", formattedProfile),
		)
		return fmt.Errorf("获取Profile失败: %w", err)
	}

	// 使用会话服务创建会话
	return s.sessionService.CreateSession(ctx, serverID, accessToken, profile.Name, formattedProfile, ip)
}

// HasJoinedServer 验证玩家是否已加入服务器
func (s *yggdrasilServiceComposite) HasJoinedServer(ctx context.Context, serverID, username, ip string) error {
	return s.sessionService.ValidateSession(ctx, serverID, username, ip)
}

// SerializeProfile 序列化档案
func (s *yggdrasilServiceComposite) SerializeProfile(ctx context.Context, profile model.Profile) map[string]interface{} {
	return s.serializationService.SerializeProfile(ctx, profile)
}

// SerializeUser 序列化用户
func (s *yggdrasilServiceComposite) SerializeUser(ctx context.Context, user *model.User, uuid string) map[string]interface{} {
	return s.serializationService.SerializeUser(ctx, user, uuid)
}

// GeneratePlayerCertificate 生成玩家证书
func (s *yggdrasilServiceComposite) GeneratePlayerCertificate(ctx context.Context, uuid string) (map[string]interface{}, error) {
	return s.certificateService.GeneratePlayerCertificate(ctx, uuid)
}

// GetPublicKey 获取公钥
func (s *yggdrasilServiceComposite) GetPublicKey(ctx context.Context) (string, error) {
	return s.certificateService.GetPublicKey(ctx)
}