- name: Deploy LNBits with Poetry and configure Caddy reverse proxy
  hosts: vipy
  become: yes
  vars_files:
    - ../../infra_vars.yml
    - ./lnbits_vars.yml
  vars:
    lnbits_domain: "{{ lnbits_subdomain }}.{{ 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
          - git
          - curl
          - build-essential
          - pkg-config
          - libffi-dev
          - libssl-dev
          - zlib1g-dev
          - libbz2-dev
          - libreadline-dev
          - libsqlite3-dev
          - libncursesw5-dev
          - xz-utils
          - tk-dev
          - libxml2-dev
          - libxmlsec1-dev
          - liblzma-dev
        state: present
        update_cache: yes

    - name: Install pyenv
      shell: |
        curl https://pyenv.run | bash
      args:
        creates: "/home/{{ ansible_user }}/.pyenv"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"

    - name: Add pyenv to PATH
      lineinfile:
        path: "/home/{{ ansible_user }}/.bashrc"
        line: 'export PYENV_ROOT="$HOME/.pyenv"'
        state: present
      become: yes
      become_user: "{{ ansible_user }}"

    - name: Add pyenv init to bashrc
      lineinfile:
        path: "/home/{{ ansible_user }}/.bashrc"
        line: 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"'
        state: present
      become: yes
      become_user: "{{ ansible_user }}"

    - name: Add pyenv init to bashrc (second line)
      lineinfile:
        path: "/home/{{ ansible_user }}/.bashrc"
        line: 'eval "$(pyenv init -)"'
        state: present
      become: yes
      become_user: "{{ ansible_user }}"

    - name: Install Python 3.12 via pyenv
      shell: |
        export PYENV_ROOT="$HOME/.pyenv"
        export PATH="$PYENV_ROOT/bin:$PATH"
        eval "$(pyenv init -)"
        pyenv install -s 3.12.7
        pyenv global 3.12.7
      args:
        creates: "/home/{{ ansible_user }}/.pyenv/versions/3.12.7/bin/python3.12"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"

    - name: Install Poetry
      shell: |
        export PYENV_ROOT="$HOME/.pyenv"
        export PATH="$PYENV_ROOT/bin:$PYENV_ROOT/versions/3.12.7/bin:$PATH"
        eval "$(pyenv init -)"
        curl -sSL https://install.python-poetry.org | python3 -
      args:
        creates: "/home/{{ ansible_user }}/.local/bin/poetry"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"

    - name: Add Poetry to PATH
      lineinfile:
        path: "/home/{{ ansible_user }}/.bashrc"
        line: 'export PATH="$HOME/.local/bin:$PATH"'
        state: present
      become: yes
      become_user: "{{ ansible_user }}"

    - name: Clone LNBits repository
      git:
        repo: https://github.com/lnbits/lnbits.git
        dest: "{{ lnbits_dir }}/lnbits"
        version: main
        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: Configure Poetry to use Python 3.12
      command: /home/{{ ansible_user }}/.local/bin/poetry env use /home/{{ ansible_user }}/.pyenv/versions/3.12.7/bin/python3.12
      args:
        chdir: "{{ lnbits_dir }}/lnbits"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"
        PATH: "/home/{{ ansible_user }}/.local/bin:/home/{{ ansible_user }}/.pyenv/versions/3.12.7/bin:/home/{{ ansible_user }}/.pyenv/bin:{{ ansible_env.PATH }}"
        PYENV_ROOT: "/home/{{ ansible_user }}/.pyenv"

    - name: Install LNBits dependencies
      command: /home/{{ ansible_user }}/.local/bin/poetry install --only main
      args:
        chdir: "{{ lnbits_dir }}/lnbits"
      become: yes
      become_user: "{{ ansible_user }}"
      environment:
        HOME: "/home/{{ ansible_user }}"
        PATH: "/home/{{ ansible_user }}/.local/bin:/home/{{ ansible_user }}/.pyenv/versions/3.12.7/bin:/home/{{ ansible_user }}/.pyenv/bin:{{ ansible_env.PATH }}"
        PYENV_ROOT: "/home/{{ ansible_user }}/.pyenv"
    
    - 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/poetry run lnbits
          Restart=always
          RestartSec=30
          Environment=PYTHONUNBUFFERED=1
          Environment="PATH=/home/{{ ansible_user }}/.local/bin:/home/{{ ansible_user }}/.pyenv/versions/3.12.7/bin:/home/{{ ansible_user }}/.pyenv/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
          Environment="PYENV_ROOT=/home/{{ ansible_user }}/.pyenv"

          [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