package client

import (
	"context"
	"fmt"

	"dubbo.apache.org/dubbo-go/v3/client"
	_ "dubbo.apache.org/dubbo-go/v3/imports"
	notifPb "github.com/topfans/backend/pkg/proto/notification"
	"go.uber.org/zap"
)

// NotificationClient Notification Service RPC 客户端
// 用于点赞等业务场景向 notification service 投递通知
type NotificationClient struct {
	client notifPb.NotificationService
	logger *zap.Logger
}

// NewNotificationClient 创建 Notification Service RPC 客户端
// serviceURL 格式：tri://host:port
func NewNotificationClient(serviceURL string, logger *zap.Logger) (*NotificationClient, error) {
	cli, err := client.NewClient(
		client.WithClientURL(serviceURL),
	)
	if err != nil {
		return nil, fmt.Errorf("failed to create dubbo client: %w", err)
	}

	notifClient, err := notifPb.NewNotificationService(cli)
	if err != nil {
		return nil, fmt.Errorf("failed to create notification service client: %w", err)
	}

	return &NotificationClient{
		client: notifClient,
		logger: logger,
	}, nil
}

// CreateNotification 创建通知
// 调用方需要自行处理错误：失败时通常只记日志，不影响主业务路径
func (c *NotificationClient) CreateNotification(ctx context.Context, req *notifPb.CreateNotificationRequest) (*notifPb.CreateNotificationResponse, error) {
	resp, err := c.client.CreateNotification(ctx, req)
	if err != nil {
		c.logger.Error("Failed to create notification",
			zap.Error(err),
			zap.Int64("user_id", req.GetUserId()),
			zap.String("type", req.GetType()),
		)
		return nil, err
	}
	return resp, nil
}