refactor: Switching to a cron system for tasks, restructuring service and status models

Added response time field for Status model, set log level from ENV

repository/status.go

@@ -9,6 +9,7 @@ import (
 
 type Status interface {
 	Add(ctx context.Context, status model.Status) error
+	LastNStatuses(ctx context.Context, serviceID uint64, n uint) ([]model.Status, error)
 }
 
 type status struct {
@@ -24,3 +25,14 @@ func NewStatusRepository() Status {
 func (s status) Add(ctx context.Context, status model.Status) error {
 	return s.db.WithContext(ctx).Create(&status).Error
 }
+
+func (s status) LastNStatuses(ctx context.Context, serviceID uint64, n uint) ([]model.Status, error) {
+	var items = make([]model.Status, 0, n)
+
+	return items, s.db.
+		WithContext(ctx).
+		Limit(int(n)).
+		Order("created_at DESC").
+		Find(&items, "service_id = ?", serviceID).
+		Error
+}