every -loop duration, look for completed tasks with loop set and incomplete them

server/ajax/ajax.go

@@ -3,8 +3,11 @@ package ajax
 import (
 	"local/storage"
 	"local/todo-server/config"
+	"local/todo-server/server/ajax/task"
+	"log"
 	"net/http"
 	"net/url"
+	"time"
 )
 
 type Ajax struct {
@@ -82,3 +85,39 @@ func has(params url.Values, k string) bool {
 	_, ok := params[k]
 	return ok
 }
+
+func (a *Ajax) Async() {
+	c := time.NewTicker(config.Loop)
+	for range c.C {
+		log.Println("loop tasks")
+		if err := a.loopTasks(); err != nil {
+			log.Println("failed to loop tasks", err)
+		}
+	}
+}
+
+func (a *Ajax) loopTasks() error {
+	lists, err := a.storageListLists()
+	if err != nil {
+		return err
+	}
+	for _, list := range lists {
+		tasks, err := a.storageListTasks(list.UUID, func(t *task.Task) bool {
+			return t.Complete
+		})
+		if err != nil {
+			return err
+		}
+		for _, task := range tasks {
+			if !task.Complete || task.Loop == 0 || time.Since(task.Completed) < task.Loop {
+				continue
+			}
+			task.Complete = false
+			task.Completed = time.Time{}
+			if err := a.storageSetTask(list.UUID, task); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}