Implement settingsservice

settingsservice.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"fmt"
+	"log"
+)
+
+type (
+	SettingsService struct {
+		db *DB
+	}
+)
+
+var Settings map[string]string = map[string]string{
+	"FoodDaysLookback":             "7",
+	"FoodAggregatedDaysLookback":   "7",
+	"WeightDaysLookback":           "7",
+	"WeightAggregatedDaysLookback": "7",
+}
+
+func (s *SettingsService) LoadSettings() (map[string]string, error) {
+	if s.db == nil || !s.db.Ready {
+		return Settings, fmt.Errorf("cannot load Settings, db is nil or is not ready")
+	}
+
+	for key := range Settings {
+		var value string
+		err := s.db.readConn.QueryRow("SELECT value FROM settings WHERE key = ?", key).Scan(&value)
+		if err != nil {
+			Error.Printf("error getting setting for key %s: %++v", key, err)
+			continue
+		}
+		log.Println(key, value)
+	}
+
+	return Settings, nil
+}