From f28ccce6a020a8c22a29346ee3fc83fdb7f28828 Mon Sep 17 00:00:00 2001
From: Magnus Root <magnusroot@inbox.ru>
Date: Tue, 10 Mar 2026 17:38:08 +0300
Subject: [PATCH] Fix

---
 dockercheck.go | 63 +++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 52 insertions(+), 11 deletions(-)

diff --git a/dockercheck.go b/dockercheck.go
index b89d180..5640e5b 100644
--- a/dockercheck.go
+++ b/dockercheck.go
@@ -36,6 +36,7 @@ const (
 	dcKindStatusChanged dcChangeKind = "status_changed"
 	dcKindHealthChanged dcChangeKind = "health_changed"
 	dcKindDisappeared   dcChangeKind = "disappeared"
+	dcKindAppeared      dcChangeKind = "appeared"
 )
 
 type dcStateChange struct {
@@ -58,6 +59,10 @@ func (ch dcStateChange) isProblem() bool {
 	return false
 }
 
+func (ch dcStateChange) isNew() bool {
+	return ch.Kind == dcKindAppeared
+}
+
 func (ch dcStateChange) isRecovery() bool {
 	switch ch.Kind {
 	case dcKindStatusChanged:
@@ -108,6 +113,7 @@ func runDockerCheck() error {
 
 	// Загружаем предыдущее состояние
 	prevState := dcLoadState()
+	isFirstRun := len(prevState.Containers) == 0
 
 	// Строим map текущего состояния
 	current := make(map[string]dcContainerInfo, len(containers))
@@ -116,7 +122,7 @@ func runDockerCheck() error {
 	}
 
 	// Сравниваем
-	changes := dcCompareStates(prevState.Containers, current)
+	changes := dcCompareStates(prevState.Containers, current, isFirstRun)
 
 	// Статистика
 	runningCount := 0
@@ -140,6 +146,8 @@ func runDockerCheck() error {
 		for _, ch := range changes {
 			arrow := dcChangeArrow(ch)
 			switch ch.Kind {
+			case dcKindAppeared:
+				log.Printf("   %s %-30s | появился (%s) | %s", arrow, ch.Name, ch.CurrState.Status, ch.Image)
 			case dcKindDisappeared:
 				log.Printf("   %s %-30s | исчез (был: %s)", arrow, ch.Name, ch.PrevState.Status)
 			case dcKindStatusChanged:
@@ -265,7 +273,7 @@ func dcNormalizeStatus(raw string) string {
 
 // ── Сравнение состояний ──────────────────────────────────────────────────────
 
-func dcCompareStates(prev map[string]dcContainerState, curr map[string]dcContainerInfo) []dcStateChange {
+func dcCompareStates(prev map[string]dcContainerState, curr map[string]dcContainerInfo, isFirstRun bool) []dcStateChange {
 	var changes []dcStateChange
 
 	// Проверяем текущие контейнеры
@@ -273,7 +281,16 @@ func dcCompareStates(prev map[string]dcContainerState, curr map[string]dcContain
 		prevInfo, existed := prev[name]
 
 		if !existed {
-			// Новый контейнер — не алертим, просто добавится в state
+			if !isFirstRun {
+				// Новый контейнер появился после первого запуска — алертим
+				changes = append(changes, dcStateChange{
+					Name:      name,
+					Kind:      dcKindAppeared,
+					PrevState: dcContainerState{},
+					CurrState: dcContainerState{Status: currInfo.Status, Health: currInfo.Health},
+					Image:     currInfo.Image,
+				})
+			}
 			continue
 		}
 
@@ -365,29 +382,34 @@ func dcSaveState(current map[string]dcContainerInfo) {
 // ── Отправка алерта ──────────────────────────────────────────────────────────
 
 func dcSendAlert(hostname string, changes []dcStateChange) {
-	var problems, recoveries []dcStateChange
+	var problems, recoveries, appeared []dcStateChange
 	for _, ch := range changes {
-		if ch.isRecovery() {
+		switch {
+		case ch.isNew():
+			appeared = append(appeared, ch)
+		case ch.isRecovery():
 			recoveries = append(recoveries, ch)
-		} else if ch.isProblem() {
+		case ch.isProblem():
 			problems = append(problems, ch)
 		}
 	}
 
-	// Если нет ни проблем, ни восстановлений — молчим
-	if len(problems) == 0 && len(recoveries) == 0 {
+	// Если нет никаких изменений — молчим
+	if len(problems) == 0 && len(recoveries) == 0 && len(appeared) == 0 {
 		return
 	}
 
 	// Заголовок по наиболее критичному событию
 	var header string
 	switch {
-	case len(problems) > 0 && len(recoveries) > 0:
-		header = "⚠️ <b>Изменения в состоянии контейнеров</b>"
 	case len(problems) > 0:
 		header = "🚨 <b>АЛЕРТ: Проблемы с контейнерами!</b>"
-	default:
+	case len(recoveries) > 0 && len(appeared) > 0:
+		header = "⚠️ <b>Изменения в состоянии контейнеров</b>"
+	case len(recoveries) > 0:
 		header = "✅ <b>Контейнеры восстановлены</b>"
+	default:
+		header = "ℹ️ <b>Новые контейнеры</b>"
 	}
 
 	message := fmt.Sprintf(
@@ -458,6 +480,20 @@ func dcSendAlert(hostname string, changes []dcStateChange) {
 		}
 	}
 
+	// Новые контейнеры
+	if len(appeared) > 0 {
+		message += "━━━━━━━━━━━━━━━━━━━━━━━━━━━\n"
+		message += fmt.Sprintf("🆕 <b>Появились (%d):</b>\n\n", len(appeared))
+		for _, ch := range appeared {
+			message += fmt.Sprintf(
+				"🆕 <b>%s</b>\n"+
+					"   📌 Статус: <code>%s</code>\n"+
+					"   🐳 <code>%s</code>\n\n",
+				ch.Name, ch.CurrState.Status, ch.Image,
+			)
+		}
+	}
+
 	message += "━━━━━━━━━━━━━━━━━━━━━━━━━━━\n"
 	message += "💡 <i>docker ps -a | docker logs &lt;имя&gt; --tail 50</i>"
 
@@ -492,6 +528,8 @@ func dcStatusEmoji(status, health string) string {
 
 func dcChangeEmoji(ch dcStateChange) string {
 	switch ch.Kind {
+	case dcKindAppeared:
+		return "🆕"
 	case dcKindDisappeared:
 		return "👻"
 	case dcKindHealthChanged:
@@ -510,6 +548,9 @@ func dcChangeEmoji(ch dcStateChange) string {
 }
 
 func dcChangeArrow(ch dcStateChange) string {
+	if ch.isNew() {
+		return "🆕"
+	}
 	if ch.isRecovery() {
 		return "✅"
 	}