move packages to src

src/storage/settings.go

@@ -0,0 +1,91 @@
+package storage
+
+import "encoding/json"
+
+func settingsDefaults() map[string]interface{} {
+	return map[string]interface{}{
+		"filter":            "",
+		"feed":              "",
+		"feed_list_width":   300,
+		"item_list_width":   300,
+		"sort_newest_first": true,
+		"theme_name":        "light",
+		"theme_font":        "",
+		"theme_size":        1,
+		"refresh_rate":      0,
+	}
+}
+
+func (s *Storage) GetSettingsValue(key string) interface{} {
+	row := s.db.QueryRow(`select val from settings where key=?`, key)
+	if row == nil {
+		return settingsDefaults()[key]
+	}
+	var val []byte
+	row.Scan(&val)
+	if len(val) == 0 {
+		return nil
+	}
+	var valDecoded interface{}
+	if err := json.Unmarshal([]byte(val), &valDecoded); err != nil {
+		s.log.Print(err)
+		return nil
+	}
+	return valDecoded
+}
+
+func (s *Storage) GetSettingsValueInt64(key string) int64 {
+	val := s.GetSettingsValue(key)
+	if val != nil {
+		if fval, ok := val.(float64); ok {
+			return int64(fval)
+		}
+	}
+	return 0
+}
+
+func (s *Storage) GetSettings() map[string]interface{} {
+	result := settingsDefaults()
+	rows, err := s.db.Query(`select key, val from settings;`)
+	if err != nil {
+		s.log.Print(err)
+		return result
+	}
+	for rows.Next() {
+		var key string
+		var val []byte
+		var valDecoded interface{}
+
+		rows.Scan(&key, &val)
+		if err = json.Unmarshal([]byte(val), &valDecoded); err != nil {
+			s.log.Print(err)
+			continue
+		}
+		result[key] = valDecoded
+	}
+	return result
+}
+
+func (s *Storage) UpdateSettings(kv map[string]interface{}) bool {
+	defaults := settingsDefaults()
+	for key, val := range kv {
+		if defaults[key] == nil {
+			continue
+		}
+		valEncoded, err := json.Marshal(val)
+		if err != nil {
+			s.log.Print(err)
+			return false
+		}
+		_, err = s.db.Exec(`
+			insert into settings (key, val) values (?, ?)
+			on conflict (key) do update set val=?`,
+			key, valEncoded, valEncoded,
+		)
+		if err != nil {
+			s.log.Print(err)
+			return false
+		}
+	}
+	return true
+}