package client

import (
	"context"
	"fmt"

	"github.com/topfans/backend/pkg/logger"
	pbCommon "github.com/topfans/backend/pkg/proto/common"
	pbUser "github.com/topfans/backend/pkg/proto/user"
	"go.uber.org/zap"
)

// UserServiceClient User Service RPC 客户端接口
type UserServiceClient interface {
	// UpdateCrystalBalance 更新水晶余额
	UpdateCrystalBalance(ctx context.Context, userID, starID int64, delta int64) (int64, error)

	// UpdateAssetsCount 更新资产数量
	UpdateAssetsCount(ctx context.Context, userID, starID int64, delta int32) (int32, error)

	// GetFanProfile 获取粉丝档案信息
	GetFanProfile(ctx context.Context, userID, starID int64) (*pbUser.FanProfile, error)
}

// userServiceClient User Service RPC 客户端实现
type userServiceClient struct {
	client pbUser.UserSocialService
}

// NewUserServiceClient 创建 User Service RPC 客户端
func NewUserServiceClient(client pbUser.UserSocialService) UserServiceClient {
	return &userServiceClient{
		client: client,
	}
}

// UpdateCrystalBalance 更新水晶余额
func (c *userServiceClient) UpdateCrystalBalance(ctx context.Context, userID, starID int64, delta int64) (int64, error) {
	logger.Logger.Debug("Calling UserService.UpdateCrystalBalance",
		zap.Int64("user_id", userID),
		zap.Int64("star_id", starID),
		zap.Int64("delta", delta),
	)

	resp, err := c.client.UpdateCrystalBalance(ctx, &pbUser.UpdateCrystalBalanceRequest{
		UserId: userID,
		StarId: starID,
		Delta:  delta,
	})

	if err != nil {
		logger.Logger.Error("Failed to call UserService.UpdateCrystalBalance",
			zap.Int64("user_id", userID),
			zap.Int64("star_id", starID),
			zap.Int64("delta", delta),
			zap.Error(err),
		)
		return 0, err
	}

	if resp.Base.Code != 0 {
		logger.Logger.Warn("UserService.UpdateCrystalBalance returned error",
			zap.Int64("user_id", userID),
			zap.Int64("star_id", starID),
			zap.Int32("code", int32(resp.Base.Code)),
			zap.String("message", resp.Base.Message),
		)
		return 0, err
	}

	logger.Logger.Debug("UserService.UpdateCrystalBalance successful",
		zap.Int64("user_id", userID),
		zap.Int64("star_id", starID),
		zap.Int64("new_balance", resp.NewBalance),
	)

	return resp.NewBalance, nil
}

// UpdateAssetsCount 更新资产数量
func (c *userServiceClient) UpdateAssetsCount(ctx context.Context, userID, starID int64, delta int32) (int32, error) {
	logger.Logger.Debug("Calling UserService.UpdateAssetsCount",
		zap.Int64("user_id", userID),
		zap.Int64("star_id", starID),
		zap.Int32("delta", delta),
	)

	resp, err := c.client.UpdateAssetsCount(ctx, &pbUser.UpdateAssetsCountRequest{
		UserId: userID,
		StarId: starID,
		Delta:  delta,
	})

	if err != nil {
		logger.Logger.Error("Failed to call UserService.UpdateAssetsCount",
			zap.Int64("user_id", userID),
			zap.Int64("star_id", starID),
			zap.Int32("delta", delta),
			zap.Error(err),
		)
		return 0, err
	}

	if resp.Base.Code != 0 {
		logger.Logger.Warn("UserService.UpdateAssetsCount returned error",
			zap.Int64("user_id", userID),
			zap.Int64("star_id", starID),
			zap.Int32("code", int32(resp.Base.Code)),
			zap.String("message", resp.Base.Message),
		)
		return 0, err
	}

	logger.Logger.Debug("UserService.UpdateAssetsCount successful",
		zap.Int64("user_id", userID),
		zap.Int64("star_id", starID),
		zap.Int32("new_count", resp.NewCount),
	)

	return resp.NewCount, nil
}

// GetFanProfile 获取粉丝档案信息
func (c *userServiceClient) GetFanProfile(ctx context.Context, userID, starID int64) (*pbUser.FanProfile, error) {
	logger.Logger.Debug("Calling UserService.GetFanProfile",
		zap.Int64("user_id", userID),
		zap.Int64("star_id", starID),
	)

	resp, err := c.client.GetFanProfile(ctx, &pbUser.GetFanProfileRequest{
		UserId: userID,
		StarId: starID,
	})

	if err != nil {
		logger.Logger.Error("Failed to call UserService.GetFanProfile",
			zap.Int64("user_id", userID),
			zap.Int64("star_id", starID),
			zap.Error(err),
		)
		return nil, err
	}

	if resp.Base.Code != pbCommon.StatusCode_STATUS_OK {
		logger.Logger.Warn("UserService.GetFanProfile returned error",
			zap.Int64("user_id", userID),
			zap.Int64("star_id", starID),
			zap.Int32("code", int32(resp.Base.Code)),
			zap.String("message", resp.Base.Message),
		)
		return nil, fmt.Errorf("failed to get fan profile: %s", resp.Base.Message)
	}

	logger.Logger.Debug("UserService.GetFanProfile successful",
		zap.Int64("user_id", userID),
		zap.Int64("star_id", starID),
		zap.String("nickname", resp.Profile.Nickname),
	)

	return resp.Profile, nil
}