Initial commit

libexec/hermes-stack-signal-health

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -Euo pipefail
+
+CONFIG_FILE="${XDG_CONFIG_HOME:-$HOME/.config}/hermes-stack-maintenance/config.env"
+STATE_DIR="${XDG_STATE_HOME:-$HOME/.local/state}/hermes-stack-maintenance"
+NOTIFIER="$HOME/.local/libexec/hermes-stack-notify"
+mkdir -p "$STATE_DIR"
+# shellcheck disable=SC1090
+source "$CONFIG_FILE"
+
+set +u
+set -a
+# shellcheck disable=SC1090
+source "$HERMES_ENV" || true
+set +a
+set -u
+
+state_file="$STATE_DIR/signal-health-state"
+signal_url="${SIGNAL_HTTP_URL:-}"
+[[ -n "$signal_url" ]] || exit 0
+
+check_signal() {
+  local status
+  status="$(curl --silent --output /dev/null --max-time 5 \
+    --write-out '%{http_code}' "${signal_url%/}/api/v1/check" || true)"
+  [[ "$status" =~ ^2[0-9][0-9]$ ]]
+}
+
+if check_signal; then
+  current=healthy
+else
+  systemctl --user restart "$SIGNAL_SERVICE" || true
+  sleep 5
+  check_signal && current=healthy || current=unhealthy
+fi
+
+previous="$(cat "$state_file" 2>/dev/null || true)"
+if [[ "$current" == unhealthy && "$previous" != unhealthy ]]; then
+  "$NOTIFIER" "Hermes-Stack: signal-cli ist nicht erreichbar; Neustart wurde versucht." || true
+elif [[ "$current" == healthy && "$previous" == unhealthy ]]; then
+  "$NOTIFIER" "Hermes-Stack: signal-cli ist wieder erreichbar." || true
+fi
+
+printf '%s\n' "$current" >"$state_file"
+[[ "$current" == healthy ]]