#!/bin/bash
# Gravl Monitoring Check - Phase 10-09 Pre-Launch
# Runs periodic health checks on staging and readiness for production components.

TIMESTAMP=$(date -Iseconds)
REPORT_FILE="/workspace/gravl/monitoring/health_report.json"

echo "Running Gravl Health Check: $TIMESTAMP"

# 1. Check Staging API Health (Example endpoint)
STAGING_API_STATUS=$(curl -s -o /dev/null -w "%{http_code}" https://api.staging.gravl.example.com/health || echo "FAIL")

# 2. Check Cert-Manager Pods
CERT_MANAGER_STATUS=$(kubectl get pods -n cert-manager --no-headers | awk '{print $3}' | grep -v Running | wc -l)
if [ "$CERT_MANAGER_STATUS" -eq 0 ]; then CERT_STATUS="HEALTHY"; else CERT_STATUS="UNHEALTHY"; fi

# 3. Check Sealed Secrets Pods
SEALED_SECRETS_STATUS=$(kubectl get pods -n kube-system -l app.kubernetes.io/name=sealed-secrets --no-headers | awk '{print $3}' | grep -v Running | wc -l)
if [ "$SEALED_SECRETS_STATUS" -eq 0 ]; then SEALED_STATUS="HEALTHY"; else SEALED_STATUS="UNHEALTHY"; fi

# 4. Check Staging Latency
LATENCY=$(curl -s -o /dev/null -w "%{time_total}" https://api.staging.gravl.example.com/health || echo "0")

# Generate JSON Report
cat <<EOF > "$REPORT_FILE"
{
  "timestamp": "$TIMESTAMP",
  "staging_api_http_code": "$STAGING_API_STATUS",
  "cert_manager": "$CERT_STATUS",
  "sealed_secrets": "$SEALED_STATUS",
  "latency_ms": $(echo "$LATENCY * 1000" | bc -l 2>/dev/null || echo 0),
  "summary": "Staging environment is $([ "$STAGING_API_STATUS" == "200" ] && echo "ONLINE" || echo "OFFLINE"). Infrastructure components: Cert-Manager ($CERT_STATUS), Sealed-Secrets ($SEALED_STATUS)."
}
EOF

echo "Health report generated at $REPORT_FILE"