---
# repo tasks file for n8n

- name: Ensure n8n group exists
  ansible.builtin.group:
    name: "{{ n8n_group }}"
    system: true

- name: Ensure n8n user exists
  ansible.builtin.user:
    name: "{{ n8n_user }}"
    group: "{{ n8n_group }}"
    system: true
    create_home: false
    shell: /usr/sbin/nologin

- name: Ensure n8n directory exists
  ansible.builtin.file:
    path: "{{ n8n_home }}"
    state: directory
    owner: "{{ n8n_user }}"
    group: "{{ n8n_group }}"
    mode: "0755"

- name: Check n8n repo directory
  ansible.builtin.stat:
    path: "{{ n8n_home }}"
  register: n8n_repo_home

- name: Check n8n git metadata
  ansible.builtin.stat:
    path: "{{ n8n_home }}/.git"
  register: n8n_repo_git

- name: Check n8n directory contents
  ansible.builtin.find:
    paths: "{{ n8n_home }}"
    hidden: true
    recurse: false
  register: n8n_repo_contents
  when: n8n_repo_home.stat.exists

- name: Remove n8n directory when not a git repo
  ansible.builtin.file:
    path: "{{ n8n_home }}"
    state: absent
  when:
    - n8n_repo_git.stat.exists is not defined or not n8n_repo_git.stat.exists
    - (n8n_app_options.clean_path | default(false))

- name: Abort when n8n directory is not a git repo
  ansible.builtin.fail:
    msg: "n8n path {{ n8n_home }} exists but is not a git repo. Set app_options.clean_path: true to wipe it."
  when:
    - n8n_repo_home.stat.exists
    - n8n_repo_git.stat.exists is not defined or not n8n_repo_git.stat.exists
    - (n8n_repo_contents.files | default([]) | length) > 0
    - not (n8n_app_options.clean_path | default(false))

- name: Ensure n8n repo ownership
  ansible.builtin.file:
    path: "{{ n8n_home }}"
    state: directory
    owner: "{{ n8n_user }}"
    group: "{{ n8n_group }}"
    recurse: true
  when: n8n_repo_git.stat.exists

- name: Mark n8n repo as safe for git
  ansible.builtin.command: "git config --global --add safe.directory {{ n8n_home }}"
  become_user: "{{ n8n_user }}"
  when: n8n_repo_git.stat.exists

- name: Ensure n8n repo origin exists
  ansible.builtin.command: "git remote add origin {{ n8n_repo_path }}"
  args:
    chdir: "{{ n8n_home }}"
  become_user: "{{ n8n_user }}"
  changed_when: false
  failed_when: false
  when: n8n_repo_git.stat.exists

- name: Ensure n8n repo origin matches
  ansible.builtin.command: "git remote set-url origin {{ n8n_repo_path }}"
  args:
    chdir: "{{ n8n_home }}"
  become_user: "{{ n8n_user }}"
  when: n8n_repo_git.stat.exists

- name: Install pnpm globally
  npm:
    name: pnpm
    global: true
    state: present
  become: true

- name: Clone n8n repo
  ansible.builtin.git:
    repo: "{{ n8n_repo_path }}"
    dest: "{{ n8n_home }}"
    version: "{{ n8n_repo_version }}"
    update: true
    force: true
  become_user: "{{ n8n_user }}"

- name: Ensure n8n repo ownership
  ansible.builtin.file:
    path: "{{ n8n_home }}"
    state: directory
    owner: "{{ n8n_user }}"
    group: "{{ n8n_group }}"
    recurse: true

- name: Create n8n env file
  ansible.builtin.template:
    src: "{{ n8n_app_options.env_template | default('n8n.env.j2') }}"
    dest: "{{ n8n_home }}/.env"
    owner: "{{ n8n_user }}"
    group: "{{ n8n_group }}"
    mode: "0640"

- name: Install n8n dependencies (pnpm install)
  ansible.builtin.command: pnpm install --frozen-lockfile=false
  args:
    chdir: "{{ n8n_home }}"
  become_user: "{{ n8n_user }}"

- name: Build n8n
  ansible.builtin.command: /bin/sh -lc "{{ n8n_build_command }}"
  args:
    chdir: "{{ n8n_home }}"
  become_user: "{{ n8n_user }}"

- name: Write n8n repo systemd unit
  ansible.builtin.template:
    src: "{{ n8n_app_options.systemd_template | default('n8n-repo.service.j2') }}"
    dest: "/etc/systemd/system/{{ n8n_unit_name }}.service"
    mode: "0644"
  become: true
  when: n8n_systemd

- name: Reload systemd for n8n repo
  ansible.builtin.systemd:
    daemon_reload: true
  become: true
  when: n8n_systemd

- name: Enable and start n8n repo
  ansible.builtin.systemd:
    name: "{{ n8n_unit_name }}.service"
    enabled: true
    state: started
  become: true
  when: n8n_systemd