From de686ef53d068a51ab2f0131645e880829dd4a52 Mon Sep 17 00:00:00 2001
From: Pierre-Olivier Mercier <nemunaire@nemunai.re>
Date: Thu, 4 Feb 2021 00:51:04 +0100
Subject: [PATCH] Implement horodate parsing

---
 main.go | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 2d290c8..781023b 100644
--- a/main.go
+++ b/main.go
@@ -55,6 +55,29 @@ func computeChecksum(area []byte) (checksum byte) {
 	return
 }
 
+func getHorodate(fields *[][]byte) (horodate time.Time, err error) {
+	if len(*fields) == 4 && len((*fields)[1]) == 13 {
+		horodate, err = time.Parse("060102150405", string((*fields)[1][1:]))
+		if err != nil {
+			horodate = time.Now().Truncate(time.Second).UTC()
+		}
+
+		// Handle "saison"
+		if (*fields)[1][0] == 'E' || (*fields)[1][0] == 'e' {
+			horodate = horodate.Add(2 * time.Hour)
+		} else {
+			horodate = horodate.Add(1 * time.Hour)
+		}
+
+		// Mark field as treated
+		*fields = append((*fields)[:1], (*fields)[2:]...)
+	} else {
+		horodate = time.Now().Truncate(time.Second).UTC()
+	}
+
+	return
+}
+
 func treatLines(c chan []byte) {
 	for {
 		line := <-c
@@ -70,7 +93,13 @@ func treatLines(c chan []byte) {
 
 		fields := bytes.Fields(line)
 
-		log.Println(fields)
+		horodate, err := getHorodate(&fields)
+		if err != nil {
+			log.Println(err)
+			continue
+		}
+
+		log.Println(horodate, fields)
 	}
 }