refactor: use parser package for systemd logs

parser/tcc_parser.go

@@ -0,0 +1,49 @@
+package parser
+
+import (
+	"log/slog"
+	"regexp"
+	"strings"
+	"time"
+	"tixel_watch/helpers"
+	"tixel_watch/models"
+)
+
+var (
+	tccServicePattern = regexp.MustCompile(`^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d+)?Z)\s+(\w+)\s+(\d+)\s+---\s+\[\s*([^\]]*)\]\s+([\w\.]+)\s*:\s*(.*)$`)
+)
+
+type TCCParser struct{}
+
+func (t *TCCParser) Parse(line string) (models.LogMessage, error) {
+	newEntry := models.LogMessage{
+		Service: "tixel-control-center",
+	}
+	syslogFields, logContent := helpers.ExtractSyslogHeader(line)
+	newEntry.Host = syslogFields.Hostname
+
+	matches := tccServicePattern.FindStringSubmatch(strings.TrimSpace(logContent))
+	if len(matches) != 7 {
+		newEntry.Timestamp = time.Now()
+		newEntry.LogMessage = line
+		return newEntry, nil
+	}
+
+	timestampStr := strings.Join(strings.Split(matches[1], " "), "T")
+	timestamp, err := helpers.ParseRFC3339WithOptionalZ(timestampStr)
+	if err != nil {
+		slog.Error("unable to parse time", "error", err)
+		return newEntry, err
+	}
+	baseInfo := models.TCCBaseInfo{
+		ProcessID:  matches[3],
+		ThreadID:   strings.TrimSpace(matches[4]),
+		LoggerName: matches[5],
+	}
+	newEntry.Timestamp = timestamp
+	newEntry.LogLevel = matches[2]
+	newEntry.LogMessage = matches[6]
+	newEntry.ServiceInformation = baseInfo
+
+	return newEntry, nil
+}