- name: Deploy LNBits with Poetry and configure Caddy reverse proxy
  hosts: vipy
  become: yes
  vars_files:
    - ../../infra_vars.yml
    - ../../services_config.yml
    - ../../infra_secrets.yml
    - ./lnbits_vars.yml
  vars:
    lnbits_subdomain: "{{ subdomains.lnbits }}"
    caddy_sites_dir: "{{ caddy_sites_dir }}"
    lnbits_domain: "{{ lnbits_subdomain }}.{{ root_domain }}"
    uptime_kuma_api_url: "https://{{ subdomains.uptime_kuma }}.{{ root_domain }}"

  tasks:
    - name: Create lnbits directory
      file:
        path: "{{ lnbits_dir }}"
        state: directory
        owner: "{{ ansible_user }}"
        group: "{{ ansible_user }}"
        mode: '0755'

    - name: Install required system packages
      apt:
        name:
          - python3
          - python3-pip
          - python3-venv
          - python3-dev
          - git
          - curl
          - pkg-config
          - build-essential
          - libsecp256k1-dev
          - libffi-dev
          - libgmp-dev
          - libpq-dev
          - automake
          - autoconf
          - libtool
          - m4
          - gawk
        state: present
        update_cache: yes

    - name: Install uv packaging tool
      shell: |
        curl -LsSf https://astral.sh/uv/install.sh | sh
      args:
        creates: "/home/{{ ansible_user }}/.local/bin/uv"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"

    - name: Clone LNBits repository
      git:
        repo: https://github.com/lnbits/lnbits.git
        dest: "{{ lnbits_dir }}/lnbits"
        version: "v1.3.1"
        accept_hostkey: yes

    - name: Change ownership of LNBits directory to user
      file:
        path: "{{ lnbits_dir }}/lnbits"
        owner: "{{ ansible_user }}"
        group: "{{ ansible_user }}"
        recurse: yes

    - name: Install LNBits dependencies with uv (Python 3.12)
      command: /home/{{ ansible_user }}/.local/bin/uv sync --python 3.12 --all-extras --no-dev
      args:
        chdir: "{{ lnbits_dir }}/lnbits"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"
        PATH: "/home/{{ ansible_user }}/.local/bin:/usr/local/bin:/usr/bin:/bin"
        SECP_BUNDLED: "0"
        PKG_CONFIG_PATH: "/usr/lib/x86_64-linux-gnu/pkgconfig"
        ACLOCAL: "aclocal"
        AUTOMAKE: "automake"
    
    - name: Copy .env.example to .env
      copy:
        src: "{{ lnbits_dir }}/lnbits/.env.example"
        dest: "{{ lnbits_dir }}/lnbits/.env"
        remote_src: yes
        owner: "{{ ansible_user }}"
        group: "{{ ansible_user }}"
        mode: '0644'


    - name: Configure LNBits environment variables
      lineinfile:
        path: "{{ lnbits_dir }}/lnbits/.env"
        regexp: "^{{ item.key }}="
        line: "{{ item.key }}={{ item.value }}"
        state: present
      loop:
        - key: "LNBITS_BACKEND_WALLET_CLASS"
          value: "FakeWallet"
        - key: "LNBITS_ADMIN_UI"
          value: "true"
        - key: "HOST"
          value: "0.0.0.0"
        - key: "PORT"
          value: "{{ lnbits_port }}"
        - key: "LNBITS_DATA_FOLDER"
          value: "{{ lnbits_data_dir }}"
        - key: "LNBITS_EXTENSIONS_PATH"
          value: "{{ lnbits_data_dir }}/extensions"

    - name: Create systemd service file for LNBits
      copy:
        dest: /etc/systemd/system/lnbits.service
        content: |
          [Unit]
          Description=LNBits
          After=network.target

          [Service]
          Type=simple
          User={{ ansible_user }}
          WorkingDirectory={{ lnbits_dir }}/lnbits
          ExecStart=/home/{{ ansible_user }}/.local/bin/uv run --python 3.12 lnbits
          Restart=always
          RestartSec=30
          Environment=PYTHONUNBUFFERED=1
          Environment="PATH=/home/{{ ansible_user }}/.local/bin:/usr/local/bin:/usr/bin:/bin"
          Environment=SECP_BUNDLED=0

          [Install]
          WantedBy=multi-user.target
        owner: "{{ ansible_user }}"
        group: "{{ ansible_user }}"
        mode: '0644'

    - name: Reload systemd
      systemd:
        daemon_reload: yes

    - name: Enable and start LNBits service
      systemd:
        name: lnbits
        enabled: yes
        state: started

    - name: Ensure Caddy sites-enabled directory exists
      file:
        path: "{{ caddy_sites_dir }}"
        state: directory
        owner: root
        group: root
        mode: '0755'

    - name: Ensure Caddyfile includes import directive for sites-enabled
      lineinfile:
        path: /etc/caddy/Caddyfile
        line: 'import sites-enabled/*'
        insertafter: EOF
        state: present
        backup: yes
        create: yes
        mode: '0644'

    - name: Create Caddy reverse proxy configuration for lnbits
      copy:
        dest: "{{ caddy_sites_dir }}/lnbits.conf"
        content: |
          {{ lnbits_domain }} {
              reverse_proxy localhost:{{ lnbits_port }} {
                  header_up X-Forwarded-Host {{ lnbits_domain }}
              }
          }
        owner: root
        group: root
        mode: '0644'

    - name: Reload Caddy to apply new config
      command: systemctl reload caddy

    - name: Create Uptime Kuma monitor setup script for LNBits
      delegate_to: localhost
      become: no
      copy:
        dest: /tmp/setup_lnbits_monitor.py
        content: |
          #!/usr/bin/env python3
          import sys
          import yaml
          from uptime_kuma_api import UptimeKumaApi, MonitorType
          
          try:
              with open('/tmp/ansible_config.yml', 'r') as f:
                  config = yaml.safe_load(f)
              
              url = config['uptime_kuma_url']
              username = config['username']
              password = config['password']
              monitor_url = config['monitor_url']
              monitor_name = config['monitor_name']
              
              api = UptimeKumaApi(url, timeout=30)
              api.login(username, password)
              
              # Get all monitors
              monitors = api.get_monitors()
              
              # Find or create "services" group
              group = next((m for m in monitors if m.get('name') == 'services' and m.get('type') == 'group'), None)
              if not group:
                  group_result = api.add_monitor(type='group', name='services')
                  # Refresh to get the group with id
                  monitors = api.get_monitors()
                  group = next((m for m in monitors if m.get('name') == 'services' and m.get('type') == 'group'), None)
              
              # Check if monitor already exists
              existing_monitor = None
              for monitor in monitors:
                  if monitor.get('name') == monitor_name:
                      existing_monitor = monitor
                      break
              
              # Get ntfy notification ID
              notifications = api.get_notifications()
              ntfy_notification_id = None
              for notif in notifications:
                  if notif.get('type') == 'ntfy':
                      ntfy_notification_id = notif.get('id')
                      break
              
              if existing_monitor:
                  print(f"Monitor '{monitor_name}' already exists (ID: {existing_monitor['id']})")
                  print("Skipping - monitor already configured")
              else:
                  print(f"Creating monitor '{monitor_name}'...")
                  api.add_monitor(
                      type=MonitorType.HTTP,
                      name=monitor_name,
                      url=monitor_url,
                      parent=group['id'],
                      interval=60,
                      maxretries=3,
                      retryInterval=60,
                      notificationIDList={ntfy_notification_id: True} if ntfy_notification_id else {}
                  )
              
              api.disconnect()
              print("SUCCESS")
              
          except Exception as e:
              print(f"ERROR: {str(e)}", file=sys.stderr)
              sys.exit(1)
        mode: '0755'

    - name: Create temporary config for monitor setup
      delegate_to: localhost
      become: no
      copy:
        dest: /tmp/ansible_config.yml
        content: |
          uptime_kuma_url: "{{ uptime_kuma_api_url }}"
          username: "{{ uptime_kuma_username }}"
          password: "{{ uptime_kuma_password }}"
          monitor_url: "https://{{ lnbits_domain }}/api/v1/health"
          monitor_name: "LNBits"
        mode: '0644'

    - name: Run Uptime Kuma monitor setup
      command: python3 /tmp/setup_lnbits_monitor.py
      delegate_to: localhost
      become: no
      register: monitor_setup
      changed_when: "'SUCCESS' in monitor_setup.stdout"
      ignore_errors: yes

    - name: Clean up temporary files
      delegate_to: localhost
      become: no
      file:
        path: "{{ item }}"
        state: absent
      loop:
        - /tmp/setup_lnbits_monitor.py
        - /tmp/ansible_config.yml