feat: enhance Gotify notification handling in backup script

- Added loading of environment variables from a .env file.
- Extracted Gotify configuration from docker-compose.yml if not set.
- Improved notification sending with success and error messages based on curl exit codes.
- Ensured Gotify notifications are only sent if properly configured.

scripts/backup-restic.sh

@@ -9,6 +9,23 @@ if [ -f "$HOME/.restic-env" ]; then
     . "$HOME/.restic-env"
 fi
 
+# Load .env file if present (for Gotify variables)
+if [ -f ".env" ]; then
+    # shellcheck source=/dev/null
+    set -a
+    . ".env"
+    set +a
+fi
+
+# Extract Gotify variables from docker-compose.yml if not set
+if [ -z "$GOTIFY_URL" ] && [ -f "docker-compose.yml" ]; then
+    GOTIFY_URL=$(grep -oP 'GOTIFY_URL=\K[^\s]+' docker-compose.yml | head -1 | tr -d '"' | tr -d "'" || echo "")
+fi
+
+if [ -z "$GOTIFY_APP_TOKEN" ] && [ -f "docker-compose.yml" ]; then
+    GOTIFY_APP_TOKEN=$(grep -oP 'GOTIFY_APP_TOKEN=\K[^\s]+' docker-compose.yml | head -1 | tr -d '"' | tr -d "'" || echo "")
+fi
+
 # Function to send Gotify notification
 send_gotify_notification() {
     local title="$1"
@@ -17,9 +34,12 @@ send_gotify_notification() {
     
     # Check if Gotify is configured
     if [ -z "$GOTIFY_URL" ] || [ -z "$GOTIFY_APP_TOKEN" ]; then
+        echo "⚠️  Gotify not configured (GOTIFY_URL or GOTIFY_APP_TOKEN not set), skipping notification"
         return 0
     fi
     
+    echo "📢 Sending Gotify notification..."
+    
     # Send notification (fire and forget, don't fail on error)
     # Use jq if available for proper JSON encoding, otherwise use simple approach
     if command -v jq >/dev/null 2>&1; then
@@ -30,20 +50,34 @@ send_gotify_notification() {
             --argjson priority "$priority" \
             '{title: $title, message: $message, priority: $priority}')
         
+        local curl_exit_code=0
         curl -sSf -X POST "${GOTIFY_URL}/message?token=${GOTIFY_APP_TOKEN}" \
             -H "Content-Type: application/json" \
             -d "$json_payload" \
-            >/dev/null 2>&1 || true
+            >/dev/null 2>&1 || curl_exit_code=$?
+        
+        if [ $curl_exit_code -eq 0 ]; then
+            echo "✅ Gotify notification sent successfully"
+        else
+            echo "⚠️  Failed to send Gotify notification (curl exit code: $curl_exit_code)"
+        fi
     else
         # Fallback: simple JSON encoding (replace " with \" and newlines with \n)
         local escaped_title escaped_message
         escaped_title=$(echo "$title" | sed 's/"/\\"/g')
         escaped_message=$(echo "$message" | sed 's/"/\\"/g' | sed ':a;N;$!ba;s/\n/\\n/g')
         
+        local curl_exit_code=0
         curl -sSf -X POST "${GOTIFY_URL}/message?token=${GOTIFY_APP_TOKEN}" \
             -H "Content-Type: application/json" \
             -d "{\"title\":\"${escaped_title}\",\"message\":\"${escaped_message}\",\"priority\":${priority}}" \
-            >/dev/null 2>&1 || true
+            >/dev/null 2>&1 || curl_exit_code=$?
+        
+        if [ $curl_exit_code -eq 0 ]; then
+            echo "✅ Gotify notification sent successfully"
+        else
+            echo "⚠️  Failed to send Gotify notification (curl exit code: $curl_exit_code)"
+        fi
     fi
 }
 
@@ -138,4 +172,3 @@ else
     
     exit 0
 fi
-