115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
package task
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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"github.com/hibiken/asynq"
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"go.uber.org/zap"
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)
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// AsynqClient Asynq 客户端
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type AsynqClient struct {
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client *asynq.Client
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logger *zap.Logger
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}
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// NewAsynqClient 创建 Asynq 客户端
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func NewAsynqClient(redisAddr string, logger *zap.Logger) *AsynqClient {
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client := asynq.NewClient(asynq.RedisClientOpt{Addr: redisAddr})
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return &AsynqClient{
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client: client,
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logger: logger,
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}
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}
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// Close 关闭客户端
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func (c *AsynqClient) Close() error {
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return c.client.Close()
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}
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// ScheduleArticlePublish 调度文章定时发布任务
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func (c *AsynqClient) ScheduleArticlePublish(ctx context.Context, articleID string, publishTime time.Time) (string, error) {
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payload := map[string]interface{}{
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"article_id": articleID,
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}
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payloadBytes, err := json.Marshal(payload)
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if err != nil {
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c.logger.Error("序列化任务载荷失败", zap.Error(err))
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return "", fmt.Errorf("创建任务失败: %w", err)
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}
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task := asynq.NewTask(TaskTypeArticlePublish, payloadBytes)
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// 计算延迟时间
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delay := publishTime.Sub(time.Now())
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if delay <= 0 {
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return "", fmt.Errorf("定时发布时间不能早于当前时间")
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}
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// 设置任务选项
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opts := []asynq.Option{
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asynq.ProcessIn(delay),
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asynq.MaxRetry(3),
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asynq.Timeout(5 * time.Minute),
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}
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info, err := c.client.Enqueue(task, opts...)
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if err != nil {
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c.logger.Error("调度定时发布任务失败",
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zap.String("article_id", articleID),
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zap.Time("publish_time", publishTime),
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zap.Error(err))
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return "", fmt.Errorf("调度任务失败: %w", err)
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}
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c.logger.Info("定时发布任务调度成功",
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zap.String("article_id", articleID),
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zap.Time("publish_time", publishTime),
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zap.String("task_id", info.ID))
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return info.ID, nil
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}
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// CancelScheduledTask 取消已调度的任务
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func (c *AsynqClient) CancelScheduledTask(ctx context.Context, taskID string) error {
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// 注意：Asynq不直接支持取消已调度的任务
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// 这里我们记录日志，实际取消需要在数据库中标记
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c.logger.Info("请求取消定时任务",
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zap.String("task_id", taskID))
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// 在实际应用中，你可能需要：
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// 1. 在数据库中标记任务为已取消
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// 2. 在任务执行时检查取消状态
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// 3. 或者使用Redis的TTL机制
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return nil
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}
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// RescheduleArticlePublish 重新调度文章定时发布任务
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func (c *AsynqClient) RescheduleArticlePublish(ctx context.Context, articleID string, oldTaskID string, newPublishTime time.Time) (string, error) {
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// 1. 取消旧任务（标记为已取消）
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if err := c.CancelScheduledTask(ctx, oldTaskID); err != nil {
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c.logger.Warn("取消旧任务失败",
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zap.String("old_task_id", oldTaskID),
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zap.Error(err))
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}
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// 2. 创建新任务
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newTaskID, err := c.ScheduleArticlePublish(ctx, articleID, newPublishTime)
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if err != nil {
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return "", fmt.Errorf("重新调度任务失败: %w", err)
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}
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c.logger.Info("重新调度定时发布任务成功",
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zap.String("article_id", articleID),
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zap.String("old_task_id", oldTaskID),
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zap.String("new_task_id", newTaskID),
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zap.Time("new_publish_time", newPublishTime))
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return newTaskID, nil
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}
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