#!/usr/bin/env bash
# Gitea Runner Health Probe — Poka-yoke for unregistered runners
set -euo pipefail

GITEA_TOKEN="${GITEA_TOKEN:-}"
GITEA_URL="https://forge.alexanderwhitestone.com"
ALERT_LOG="/var/log/bezalel_runner_health.log"

log() {
    echo "[$(date -Iseconds)] $1" | tee -a "$ALERT_LOG"
}

if [[ -z "$GITEA_TOKEN" ]]; then
    log "ERROR: GITEA_TOKEN not set"
    exit 1
fi

ACTIVE_RUNNERS=$(curl -s -H "Authorization: token ${GITEA_TOKEN}" \
    "${GITEA_URL}/api/v1/repos/Timmy_Foundation/hermes-agent/actions/runners" | \
    python3 -c "import sys,json; d=json.load(sys.stdin); print(len([r for r in d.get('runners',[]) if r.get('status')=='online']))")

log "Active runners: ${ACTIVE_RUNNERS}"

if [[ "$ACTIVE_RUNNERS" -eq 0 ]]; then
    log "CRITICAL: Zero active runners detected. Attempting self-healing restart."
    pkill -f "act_runner daemon" 2>/dev/null || true
    sleep 2
    cd /opt/gitea-runner && nohup ./act_runner daemon > /var/log/gitea-runner.log 2>&1 &
    sleep 3
    # Re-check
    ACTIVE_RUNNERS_AFTER=$(curl -s -H "Authorization: token ${GITEA_TOKEN}" \
        "${GITEA_URL}/api/v1/repos/Timmy_Foundation/hermes-agent/actions/runners" | \
        python3 -c "import sys,json; d=json.load(sys.stdin); print(len([r for r in d.get('runners',[]) if r.get('status')=='online']))")
    log "Active runners after restart: ${ACTIVE_RUNNERS_AFTER}"
    if [[ "$ACTIVE_RUNNERS_AFTER" -eq 0 ]]; then
        log "CRITICAL: Self-healing failed. Runner still offline."
        touch /var/lib/bezalel/heartbeats/runner_health.last
        exit 1
    else
        log "RECOVERED: Runner back online."
    fi
else
    log "OK: ${ACTIVE_RUNNERS} runner(s) online."
fi

touch /var/lib/bezalel/heartbeats/runner_health.last