---
- name: Ensure kiwix ZIM directory exists
  ansible.builtin.file:
    path: "{{ kiwix_zim_dir }}"
    state: directory
    mode: '0755'

# --- Transmission-based torrent management ---
# This section ensures declared ZIM archives have torrents added to transmission.
# It does NOT wait for downloads to complete - kiwix startup handles that separately.

- name: Check transmission daemon is responding
  ansible.builtin.command: transmission-remote -l
  register: kiwix_transmission_check
  changed_when: false
  failed_when: false
  when: kiwix_use_transmission

- name: Fail if transmission is not running
  ansible.builtin.fail:
    msg: "Transmission daemon is not responding. Ensure transmission role ran successfully."
  when: kiwix_use_transmission and kiwix_transmission_check.rc != 0

# Find which declared archives don't have torrents yet (single shell command)
- name: Find declared archives missing from transmission
  ansible.builtin.shell: |
    set -euo pipefail
    # Get current torrent list (skip header and footer)
    torrents=$(transmission-remote -l 2>/dev/null | tail -n +2 | head -n -1 || true)

    # Check each declared archive
    {% for archive in kiwix_zim_archives %}
    base="{{ archive.filename | regex_replace('\\.zim$', '') }}"
    if ! echo "$torrents" | grep -qF "$base"; then
      echo "{{ archive.category }}/{{ archive.filename }}"
    fi
    {% endfor %}
  args:
    executable: /bin/bash
  register: kiwix_missing_torrents
  changed_when: false
  when: kiwix_use_transmission

# Add only the missing torrents
- name: Add missing torrents to transmission
  ansible.builtin.command: >
    transmission-remote -a "{{ kiwix_torrent_base_url }}/{{ item }}.torrent"
  loop: "{{ kiwix_missing_torrents.stdout_lines | default([]) }}"
  loop_control:
    label: "{{ item | basename }}"
  when:
    - kiwix_use_transmission
    - kiwix_missing_torrents.stdout_lines | default([]) | length > 0
  register: kiwix_torrent_add
  changed_when: kiwix_torrent_add.rc == 0

# --- Kiwix startup: serve whatever completed ZIM files exist ---
# This is decoupled from the declared inventory - it just serves what's available.

# Find all completed ZIM files in transmission download directory
- name: Find completed ZIM files in transmission download directory
  ansible.builtin.find:
    paths: "{{ transmission_download_dir }}"
    patterns: "*.zim"
    file_type: file
  register: kiwix_completed_zim_files
  when: kiwix_use_transmission

# Check which ZIM files already have symlinks in kiwix directory
- name: Check existing symlinks in kiwix directory
  ansible.builtin.stat:
    path: "{{ kiwix_zim_dir }}/{{ item.path | basename }}"
    get_checksum: false
  loop: "{{ kiwix_completed_zim_files.files | default([]) }}"
  loop_control:
    label: "{{ item.path | basename }}"
  register: kiwix_existing_symlinks
  when: kiwix_use_transmission

# Create symlinks for any completed ZIM files not yet linked
- name: Symlink completed ZIM files to kiwix directory
  ansible.builtin.file:
    src: "{{ item.item.path }}"
    dest: "{{ kiwix_zim_dir }}/{{ item.item.path | basename }}"
    state: link
  loop: "{{ kiwix_existing_symlinks.results | default([]) }}"
  loop_control:
    label: "{{ item.item.path | basename }}"
  when:
    - kiwix_use_transmission
    - item.stat is defined
    - not item.stat.exists
  notify: Restart kiwix-serve

# --- Fallback: Direct HTTP download (original behavior) ---
- name: Check which ZIM archives exist (direct download mode)
  ansible.builtin.stat:
    path: "{{ kiwix_zim_dir }}/{{ item.filename }}"
    get_checksum: false
  loop: "{{ kiwix_zim_archives }}"
  loop_control:
    label: "{{ item.filename }}"
  register: kiwix_zim_stat
  when: not kiwix_use_transmission

- name: Download missing ZIM archives (direct download mode)
  ansible.builtin.get_url:
    url: "https://download.kiwix.org/zim/{{ item.item.category }}/{{ item.item.filename }}"
    dest: "{{ kiwix_zim_dir }}/{{ item.item.filename }}"
    mode: '0644'
    timeout: 3600
  loop: "{{ kiwix_zim_stat.results | default([]) }}"
  loop_control:
    label: "{{ item.item.filename | default('unknown') }}"
  when:
    - not kiwix_use_transmission
    - item.stat is defined
    - not item.stat.exists
  notify: Restart kiwix-serve

# --- Determine which archives are available ---
- name: Find available ZIM archives in kiwix directory
  ansible.builtin.find:
    paths: "{{ kiwix_zim_dir }}"
    patterns: "*.zim"
    file_type: any  # includes symlinks
  register: kiwix_available_zim_files

- name: Build list of available archive filenames
  ansible.builtin.set_fact:
    kiwix_available_archives: "{{ kiwix_available_zim_files.files | map(attribute='path') | map('basename') | list }}"

# --- LaunchAgent deployment ---
- name: Deploy kiwix-serve LaunchAgent plist
  ansible.builtin.template:
    src: kiwix-serve.plist.j2
    dest: ~/Library/LaunchAgents/mcquack.eblume.kiwix-serve.plist
    mode: '0644'
  notify: Restart kiwix-serve

- name: Check if kiwix-serve LaunchAgent is loaded
  ansible.builtin.command: launchctl list mcquack.eblume.kiwix-serve
  register: kiwix_launchctl_check
  changed_when: false
  failed_when: false

- name: Load kiwix-serve LaunchAgent if not loaded
  ansible.builtin.command: launchctl load ~/Library/LaunchAgents/mcquack.eblume.kiwix-serve.plist
  when: kiwix_launchctl_check.rc != 0
  changed_when: true
  failed_when: false