feat: implement task cancellation feature and update task handling

bot/handle_add_task.go

@@ -163,7 +163,7 @@ func AddToQueue(ctx *ext.Context, update *ext.Update) error {
 		task.StoragePath = path.Join(dir.Path, file.FileName)
 	}
 
-	queue.AddTask(task)
+	queue.AddTask(&task)
 
 	entityBuilder := entity.Builder{}
 	var entities []tg.MessageEntityClass

bot/handle_cancel_task.go

@@ -0,0 +1,27 @@
+package bot
+
+import (
+	"strings"
+
+	"github.com/celestix/gotgproto/dispatcher"
+	"github.com/celestix/gotgproto/ext"
+	"github.com/gotd/td/tg"
+	"github.com/krau/SaveAny-Bot/queue"
+)
+
+func cancelTask(ctx *ext.Context, update *ext.Update) error {
+	key := strings.Split(string(update.CallbackQuery.Data), " ")[1]
+	ok := queue.CancelTask(key)
+	if ok {
+		ctx.AnswerCallback(&tg.MessagesSetBotCallbackAnswerRequest{
+			QueryID: update.CallbackQuery.QueryID,
+			Message: "任务已取消",
+		})
+		return dispatcher.EndGroups
+	}
+	ctx.AnswerCallback(&tg.MessagesSetBotCallbackAnswerRequest{
+		QueryID: update.CallbackQuery.QueryID,
+		Message: "任务取消失败",
+	})
+	return dispatcher.EndGroups
+}

bot/handlers.go

@@ -22,5 +22,6 @@ func RegisterHandlers(dispatcher dispatcher.Dispatcher) {
 	dispatcher.AddHandler(handlers.NewMessage(linkRegexFilter, handleLinkMessage))
 	dispatcher.AddHandler(handlers.NewCallbackQuery(filters.CallbackQuery.Prefix("add"), AddToQueue))
 	dispatcher.AddHandler(handlers.NewCallbackQuery(filters.CallbackQuery.Prefix("set_default"), setDefaultStorage))
+	dispatcher.AddHandler(handlers.NewCallbackQuery(filters.CallbackQuery.Prefix("cancel"), cancelTask))
 	dispatcher.AddHandler(handlers.NewMessage(filters.Message.Media, handleFileMessage))
 }

bot/utils.go

@@ -264,7 +264,7 @@ func HandleSilentAddTask(ctx *ext.Context, update *ext.Update, user *dao.User, t
 		})
 		return dispatcher.EndGroups
 	}
-	queue.AddTask(*task)
+	queue.AddTask(task)
 	ctx.EditMessage(update.EffectiveChat().GetID(), &tg.MessagesEditMessageRequest{
 		Message: fmt.Sprintf("已添加到队列: %s\n当前排队任务数: %d", task.FileName(), queue.Len()),
 		ID:      task.ReplyMessageID,