fix saving and project improvments

internal/config/log.go

@@ -0,0 +1,55 @@
+package config
+
+import (
+	"strings"
+
+	"git.loyso.art/frx/eway/internal/entity"
+)
+
+type LogLevel uint8
+
+const (
+	LogLevelDebug LogLevel = iota
+	LogLevelInfo
+	LogLevelWarn
+)
+
+func (l *LogLevel) UnmarshalText(data []byte) (err error) {
+	switch strings.ToLower(string(data)) {
+	case "debug":
+		*l = LogLevelDebug
+	case "info":
+		*l = LogLevelInfo
+	case "warn":
+		*l = LogLevelWarn
+	default:
+		return entity.SimpleError("unsupported level " + string(data))
+	}
+
+	return nil
+}
+
+type LogFormat uint8
+
+const (
+	LogFormatText LogFormat = iota
+	LogFormatJSON
+)
+
+func (l *LogFormat) UnmarshalText(data []byte) (err error) {
+	switch strings.ToLower(string(data)) {
+	case "text":
+		*l = LogFormatText
+	case "info":
+		*l = LogFormatJSON
+	default:
+		return entity.SimpleError("unsupported format " + string(data))
+	}
+
+	return nil
+}
+
+type Log struct {
+	Level  string `json:"level"`
+	Format string `json:"format"`
+}