---
# NOTE: https://wiki.alpinelinux.org/wiki/DokuWiki

- name: test if dokuwiki is already installed
  find:
    paths: "{{ doku_dir }}"
    pattern: README
  register: check_installed

- set_fact:
    install_dokuwiki: "{{ check_installed.matched == 0 }}"

- name: install block
  when: install_dokuwiki
  vars: {}
  block:
    - name: add dokuwiki deny rules to lighttpd.conf
      blockinfile:
        path: /etc/lighttpd/lighttpd.conf
        block: |
          $HTTP["url"] =~ "^/dokuwiki/(data|conf|bin|inc|vendor)/+." {
              url.access-deny = ("")
          }

    - name: restart lighttpd
      service:
        name: lighttpd
        enabled: yes
        state: restarted

    - name: download dokuwiki stable
      get_url:
        url: "{{ doku_url }}"
        dest: "{{ doku_tar }}"

    - name: make directory for dokiwiki in docroot
      file:
        path: "{{ doku_dir }}"
        state: directory
        owner: "{{ lighttpd_user }}"
        group: "{{ lighttpd_group }}"

    - name: unarchive downloaded file
      unarchive:
        remote_src: yes
        src: "{{ doku_tar }}"
        dest: /tmp
        owner: "{{ lighttpd_user }}"
        group: "{{ lighttpd_group }}"

    - name: find doku temporary directory
      find:
        paths: /tmp/
        file_type: directory
        pattern: "dokuwiki-20*"
        use_regex: true
      register: doku_tmp_dir

    - name: copy dokuwiki files to webroot
      copy:
        remote_src: yes
        src: "{{ doku_tmp_dir.files[0].path }}/"
        dest: "{{ doku_dir }}"
        owner: "{{ lighttpd_user }}"
        group: "{{ lighttpd_group }}"

    - name: remove archive
      file:
        path: "{{ doku_tar }}"
        state: absent

    - name: remove temporary files
      file:
        path: "{{ doku_tmp_dir.files[0].path }}"
        state: absent

    ##
    ## install backup data
    ##

    - name: test for backup guard
      find:
        path: "{{ doku_dir }}"
        pattern: "{{ backup_guard }}"
      register: backup_guard_present

    - name: extract backup archive
      unarchive:
        src: "{{ doku_backup_archive }}"
        dest: "{{ doku_dir }}"
        owner: "{{ lighttpd_user }}"
        group: "{{ lighttpd_group }}"
      when: use_backup and backup_guard_present.matched == 0

    - name: add guard file to let ansible know backup is completed
      file:
        path: "{{ doku_dir }}/{{ backup_guard }}"
        state: touch
      when: use_backup and backup_guard_present.matched == 0