---
- name: Ensure Bun app group exists
  ansible.builtin.group:
    name: "{{ bun_app.deploy_group }}"
    state: present

- name: Ensure Bun app user exists
  ansible.builtin.user:
    name: "{{ bun_app.deploy_user }}"
    group: "{{ bun_app.deploy_group }}"
    system: true
    shell: /usr/sbin/nologin
    create_home: true

- name: Ensure Bun app directories exist
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: "{{ bun_app.deploy_user }}"
    group: "{{ bun_app.deploy_group }}"
    mode: "0755"
  loop:
    - "{{ bun_app.path }}"
    - "/var/lib/{{ bun_app.name }}"
    - "/etc/{{ bun_app.name }}"

- name: Ensure Bun app extra directories exist
  ansible.builtin.file:
    path: "{{ item.path }}"
    state: directory
    owner: "{{ item.owner | default(bun_app.deploy_user) }}"
    group: "{{ item.group | default(bun_app.deploy_group) }}"
    mode: "{{ item.mode | default('0755') }}"
  loop: "{{ bun_app.extra_directories | default([]) }}"

- name: Install Bun app deploy key when provided
  ansible.builtin.copy:
    dest: "/etc/{{ bun_app.name }}/deploy_key"
    content: "{{ bun_app.git_ssh_key }}"
    owner: "{{ bun_app.deploy_user }}"
    group: "{{ bun_app.deploy_group }}"
    mode: "0600"
  when:
    - bun_app.git_ssh_key is defined
    - bun_app.git_ssh_key | length > 0

- name: Deploy Bun app checkout
  ansible.builtin.git:
    repo: "{{ bun_app.repo }}"
    version: "{{ bun_app.version }}"
    dest: "{{ bun_app.path }}"
    accept_hostkey: true
    key_file: "{{ '/etc/' ~ bun_app.name ~ '/deploy_key' if (bun_app.git_ssh_key is defined and bun_app.git_ssh_key | length > 0) else omit }}"
    update: true
  become_user: "{{ bun_app.deploy_user }}"
  register: bun_app_checkout

- name: Check whether Bun app has package metadata
  ansible.builtin.stat:
    path: "{{ bun_app.path }}/package.json"
  register: bun_app_package_json

- name: Check whether Bun app dependencies are installed
  ansible.builtin.stat:
    path: "{{ bun_app.path }}/node_modules"
  register: bun_app_node_modules

- name: Install Bun app dependencies
  ansible.builtin.command:
    cmd: "{{ bun_bin_path }} install"
    chdir: "{{ bun_app.path }}"
  become_user: "{{ bun_app.deploy_user }}"
  when:
    - bun_app_package_json.stat.exists
    - bun_app_checkout.changed or not bun_app_node_modules.stat.exists
  register: bun_app_install

- name: Render Bun app environment file
  ansible.builtin.template:
    src: bun-app.env.j2
    dest: "/etc/{{ bun_app.name }}/app.env"
    owner: root
    group: "{{ bun_app.deploy_group }}"
    mode: "0640"
  register: bun_app_env

- name: Install Bun app systemd unit
  ansible.builtin.template:
    src: bun-app.service.j2
    dest: "/etc/systemd/system/{{ bun_app.service_name }}.service"
    owner: root
    group: root
    mode: "0644"
  register: bun_app_unit

- name: Reload systemd for Bun app changes
  ansible.builtin.systemd_service:
    daemon_reload: true
  when: bun_app_unit.changed

- name: Ensure Bun app service is enabled and running
  ansible.builtin.service:
    name: "{{ bun_app.service_name }}"
    state: >-
      {{
        'restarted'
        if (bun_app_checkout.changed or bun_app_env.changed or bun_app_unit.changed or (bun_app_install is defined and bun_app_install.changed))
        else 'started'
      }}
    enabled: true