---
- name: Add Blackbox job to Prometheus config
  hosts: 192.168.0.105
  become: yes

  tasks:
    - name: Backup config
      copy:
        src: /etc/prometheus/prometheus.yml
        dest: /etc/prometheus/prometheus.yml.backup-blackbox
        remote_src: yes

    - name: Create blackbox config file
      copy:
        dest: /tmp/blackbox-config.yml
        content: |
          # Blackbox Exporter monitoring
          - job_name: blackbox
            honor_timestamps: true
            track_timestamps_staleness: false
            scrape_interval: 15s
            scrape_timeout: 10s
            metrics_path: /probe
            params:
              module: [http_2xx]
            scheme: http
            follow_redirects: true
            enable_http2: true
            static_configs:
              - targets:
                - "http://192.168.0.110/"
                - "http://192.168.0.111:9187/metrics"
                - "http://192.168.0.112:8080/get"
                - "http://192.168.0.100:3000/"
                - "http://192.168.0.101:9100/metrics"
                - "http://192.168.0.103:8200/ui/"
                - "http://192.168.0.104:8428/metrics"
                - "http://192.168.0.105:9090/metrics"
                - "http://192.168.0.106:3000"
                - "http://forgejo.pvenode.ru/"
                - "http://grafana.pvenode.ru/"
                - "http://prometheus.pvenode.ru/"
                - "http://app1.pvenode.ru/"
                - "http://wiki.pvenode.ru/"
            relabel_configs:
              - source_labels: [__address__]
                target_label: __param_target
              - source_labels: [__param_target]
                target_label: instance
              - target_label: __address__
                replacement: 192.168.0.112:8083
            metric_relabel_configs:
              - source_labels: [__address__]
                separator: ;
                regex: (.*)
                target_label: instance
                replacement: $1
                action: replace
              - source_labels: [__address__]
                separator: ;
                regex: ([^:]+):\d+
                target_label: host
                replacement: ${1}
                action: replace

    - name: Insert blackbox config before remote_write
      shell: |
        # Find remote_write line
        remote_line=$(grep -n "^remote_write:" /etc/prometheus/prometheus.yml | head -1 | cut -d: -f1)
        
        if [ -z "$remote_line" ]; then
          echo "ERROR: remote_write not found"
          exit 1
        fi
        
        # Insert blackbox config
        head -n $((remote_line - 1)) /etc/prometheus/prometheus.yml > /tmp/prometheus-new.yml
        cat /tmp/blackbox-config.yml >> /tmp/prometheus-new.yml
        tail -n +$remote_line /etc/prometheus/prometheus.yml >> /tmp/prometheus-new.yml
        
        # Replace original
        mv /tmp/prometheus-new.yml /etc/prometheus/prometheus.yml
        
        echo "Inserted at line $((remote_line - 1))"

    - name: Validate config
      command: promtool check config /etc/prometheus/prometheus.yml
      register: config_check
      changed_when: false

    - name: Show validation result
      debug:
        msg: "{{ config_check.stdout_lines }}"

    - name: Reload Prometheus
      systemd:
        name: prometheus
        state: reloaded
      when: config_check.rc == 0

    - name: Check result
      debug:
        msg: |
          Blackbox job {{ "successfully added" if config_check.rc == 0 else "failed to add" }}
          Backup: /etc/prometheus/prometheus.yml.backup-blackbox