started working on the backend

backend/pkg/db/tasks/tasks.go

@@ -0,0 +1,59 @@
+package tasks
+
+import (
+	"fmt"
+	"time"
+
+	cache "github.com/jfarleyx/go-simple-cache"
+	"github.com/johannesbuehl/golunteer/backend/pkg/db"
+)
+
+type tasksDB struct {
+	Id       int    `db:"id"`
+	Text     string `db:"text"`
+	Disabled bool   `db:"disabled"`
+}
+
+type Task struct {
+	Text     string
+	Disabled bool
+}
+
+var c *cache.Cache
+
+func Get() (map[int]Task, error) {
+	if tasks, hit := c.Get("tasks"); !hit {
+		refresh()
+
+		return nil, fmt.Errorf("tasks not stored cached")
+	} else {
+		return tasks.(map[int]Task), nil
+	}
+}
+
+func refresh() {
+	// get the tasksRaw from the database
+	var tasksRaw []tasksDB
+
+	if err := db.DB.Select(&tasksRaw, "SELECT * FROM TASKS"); err == nil {
+		// convert the result in a map
+		tasks := map[int]Task{}
+
+		for _, a := range tasksRaw {
+			tasks[a.Id] = Task{
+				Text:     a.Text,
+				Disabled: a.Disabled,
+			}
+		}
+
+		c.Set("tasks", tasks)
+	}
+}
+
+func init() {
+	c = cache.New(24 * time.Hour)
+
+	c.OnExpired(refresh)
+
+	refresh()
+}