# ========================================
# ALERTMANAGER CONFIGURATION
# Enterprise Alert Routing
# ========================================

global:
  smtp_smarthost: '${SMTP_HOST:-localhost:587}'
  smtp_from: '${SMTP_FROM:-alerts@mathplatform.com}'
  smtp_auth_username: '${SMTP_USER:-}'
  smtp_auth_password: '${SMTP_PASSWORD:-}'
  slack_api_url: '${SLACK_WEBHOOK_URL:-}'
  telegram_api_url: 'https://api.telegram.org'

# Templates
templates:
  - '/etc/alertmanager/templates/*.tmpl'

# Inhibition rules
inhibit_rules:
  - source_match:
      severity: 'critical'
    target_match:
      severity: 'warning'
    equal: ['alertname', 'instance']

# Route tree
troute:
  receiver: 'default-receiver'
  group_by: ['alertname', 'severity', 'instance']
  group_wait: 10s
  group_interval: 5m
  repeat_interval: 4h
  routes:
    # Critical alerts
    - match:
        severity: critical
      receiver: 'critical-receiver'
      continue: true
    
    # Database alerts
    - match:
        job: postgres
      receiver: 'database-receiver'
      group_interval: 10m
    
    # Backend alerts
    - match:
        job: backend
      receiver: 'backend-receiver'
      group_interval: 5m

# Receivers
receivers:
  - name: 'default-receiver'
    slack_configs:
      - channel: '#alerts'
        title: 'Math Platform Alert'
        text: '{{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'
        send_resolved: true

  - name: 'critical-receiver'
    slack_configs:
      - channel: '#critical-alerts'
        title: 'CRITICAL: Math Platform'
        text: '{{ range .Alerts }}{{ .Annotations.description }}{{ end }}'
        send_resolved: true
    email_configs:
      - to: '${CRITICAL_EMAIL:-admin@mathplatform.com}'
        subject: 'CRITICAL Alert: {{ .GroupLabels.alertname }}'
        html: '{{ template "email.default.html" . }}'
        send_resolved: true
    telegram_configs:
      - bot_token: '${TELEGRAM_BOT_TOKEN}'
        chat_id: '${TELEGRAM_ADMIN_CHAT_ID}'
        message: '🔴 CRITICAL: {{ .GroupLabels.alertname }} - {{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'
        send_resolved: true

  - name: 'database-receiver'
    slack_configs:
      - channel: '#database-alerts'
        title: 'Database Alert'
        text: '{{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'

  - name: 'backend-receiver'
    slack_configs:
      - channel: '#backend-alerts'
        title: 'Backend Alert'
        text: '{{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'