# "Official" recipe: https://wiki.freepbx.org/display/FOP/Installing+FreePBX+16+on+Debian+10.9
# Comprehensive & recent recipe for RPi: http://mghadam.blogspot.com/2021/03/install-asterisk-18-freepbx-15-on.html
# Quirky but still useful for comparison: https://computingforgeeks.com/how-to-install-asterisk-16-with-freepbx-15-on-ubuntu-debian/
# 2012-2017: http://www.raspberry-asterisk.org


# 2021-08-04: systemd service 'asterisk' is Enabled but Not Active at this point.
# 2021-08-05: Asterisk's systemd / systemctl support is getting there but Very
# Imperfect (even when compiled in, as a result of package 'libsystemd-dev' at
# top of asterisk.tml).
# 2021-08-12: Let's try to track the "official" init.d / update-rc.d
# instructions, but using systemd instead, to be more future-proof?
- name: FreePBX - Disable 'asterisk' systemd service, giving FreePBX full control during boot - similar to officially recommended 'update-rc.d -f asterisk remove' at: https://wiki.freepbx.org/display/FOP/Installing+FreePBX+16+on+Debian+10.9
  systemd:
    daemon_reload: yes
    name: asterisk
    #state: stopped
    enabled: no


- name: FreePBX - Install wget, git, unixodbc, sudo, net-tools, cron, sox + ~12 PHP dependencies (run 'php -m' or 'php -i' to verify PHP modules)
  package:
    name:
      - wget
      - git
      - unixodbc     # For Asterisk CDR (Call Detail Records)
      - sudo         # Required by FreePBX install script
      - net-tools    # Required by FWConsole (command-line utility, that controls FreePBX)
      - cron         # Required by FreePBX UCP package (User Control Panel)
      - sox          # Required for CDR web-playback
      # - php{{ php_version }}           # Basically drags in phpX.Y-cgi (already below!)
      - php{{ php_version }}-bcmath      # Likewise installed in nextcloud/tasks/install.yml, wordpress/tasks/install.yml
      - php{{ php_version }}-cgi
      # - php{{ php_version }}-common    # Auto-installed as an apt dependency.  REGARDLESS: php{{ php_version }}-common superset php{{ php_version }}-cli is auto-installed by php{{ php_version }}-fpm in nginx/tasks/install.yml
      - php{{ php_version }}-curl        # Likewise installed in moodle/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml
      - php{{ php_version }}-fpm         # Likewise installed in nginx/tasks/install.yml
      # - php{{ php_version }}-gettext
      - php{{ php_version }}-gd          # Likewise installed in moodle/tasks/install.yml, nextcloud/tasks/install.yml
      - php{{ php_version }}-imap
      # - php{{ php_version }}-json      # See stanza just below
      - php{{ php_version }}-mbstring    # Likewise installed in mediawiki/tasks/install.yml, moodle/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml
      # - python-mysqldb                 # https://github.com/Yannik/ansible-role-freepbx/blob/master/tasks/freepbx.yml#L33
      - php{{ php_version }}-mysql       # Likewise installed in mysql/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml
      - php-pear                         # Likewise installed for ADMIN CONSOLE https://github.com/iiab/iiab-admin-console/blob/master/roles/cmdsrv/tasks/main.yml#L19
      - php{{ php_version }}-snmp
      - php{{ php_version }}-xml         # Likewise installed in mediawiki/tasks/install.yml, moodle/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml -- AND REGARDLESS dragged in later by Admin Console's use of php-pear for roles/cmdsrv/tasks/main.yml -- run 'php -m | grep -i xml' which in the end shows {libxml, SimpleXML, xml, xmlreader, xmlwriter}
      - php{{ php_version }}-zip         # Likewise installed in moodle/tasks/install.yml, nextcloud/tasks/install.yml, wordpress/tasks/install.yml
    state: latest

# For PHP >= 8.0: phpX.Y-json is baked into PHP itself.
# For PHP <  8.0: phpX.Y-json auto-installed by phpX.Y-fpm AND phpX.Y-cli in 3-base-server's nginx/tasks/install.yml, as confirmed by: apt rdepends phpX.Y-json
#
# - name: Install php{{ php_version }}-json if PHP < 8.0
#   package:
#     name: php{{ php_version }}-json
#     state: present
#   when: php_version is version('8.0', '<')

- name: FreePBX - Install and configure Apache - if not pbx_try_nginx
  include_tasks: apache.yml
  when: not pbx_try_nginx


- name: FreePBX - Download {{ freepbx_url }}/{{ freepbx_src_file }} to {{ downloads_dir }}
  get_url:
    url: "{{ freepbx_url }}/{{ freepbx_src_file }}"
    dest: "{{ downloads_dir }}"    # e.g. /opt/iiab/downloads/freepbx-16.0-latest.tgz
    timeout: "{{ download_timeout }}"
  when: internet_available

- name: FreePBX - Check for {{ downloads_dir }}/{{ freepbx_src_file }}
  stat:
    path: "{{ downloads_dir }}/{{ freepbx_src_file }}"
  register: freepbx_src

- name: FreePBX - FAIL (force Ansible to exit) IF {{ downloads_dir }}/{{ freepbx_src_file }} doesn't exist
  fail:
    msg: "{{ downloads_dir }}/{{ freepbx_src_file }} is REQUIRED to install FreePBX."
  when: not freepbx_src.stat.exists

- name: FreePBX - Create source dir {{ freepbx_src_dir }}
  file:
    path: "{{ freepbx_src_dir }}"    # /opt/iiab/freepbx
    state: directory

- name: FreePBX - Extract to source dir (root:root)
  unarchive:
    src: "{{ downloads_dir }}/{{ freepbx_src_file }}"
    dest: "{{ freepbx_src_dir }}"
    owner: root
    group: root
    extra_opts: [--strip-components=1]
    creates: "{{ freepbx_src_dir }}/install"

# 2021-08-04: FreePBX 16 no longer needs this FreePBX 15 patch
# - name: FreePBX - Patch FreePBX source - IIAB Bug 1685
#   patch:
#     src: roles/pbx/templates/71-freepbx-framework.patch
#     dest: "{{ freepbx_src_dir }}/amp_conf/htdocs/admin/libraries/BMO/Framework.class.php"

# 2021-08-04: FreePBX 16 no longer needs this FreePBX 15 patch
# - name: FreePBX - Patch FreePBX source - wants [] not {}
#   patch:
#     src: roles/pbx/templates/pbx.patch
#     dest: "{{ freepbx_src_dir }}/amp_conf/htdocs/admin/libraries/Composer/vendor/neitanod/forceutf8/src/ForceUTF8/Encoding.php"

# 2021-08-04: FreePBX 16 no longer needs this FreePBX 15 patch
# - name: FreePBX - Patch FreePBX source - disable get_magic_quotes_gpc()
#   patch:
#     src: roles/pbx/templates/pbx2.patch
#     dest: "{{ freepbx_install_dir }}/admin/libraries/view.functions.php"


- name: FreePBX - Add MySQL user ({{ asterisk_db_user }})
  mysql_user:
    name: "{{ asterisk_db_user }}"            # asterisk
    password: "{{ asterisk_db_password }}"    # asterisk
    priv: "{{ asterisk_db_dbname }}.*:ALL/{{ asterisk_db_cdrdbname }}.*:ALL"
    # login_host: "{{ asterisk_db_host }}"
    # login_user: root
    # login_password: "{{ mysql_root_password }}"
    host: "{{ (asterisk_db_host == 'localhost') | ternary('localhost', ansible_default_ipv4.address) }}"
    state: present

- name: FreePBX - Add MySQL db ({{ asterisk_db_dbname }})
  mysql_db:
    name: "{{ asterisk_db_dbname }}"    # asterisk
    encoding: utf8
    collation: utf8_general_ci
    # login_host: "{{ asterisk_db_host }}"
    # login_user: root
    # login_password: "{{ mysql_root_password }}"
    state: present

- name: FreePBX - Add cdr MySQL db ({{ asterisk_db_cdrdbname }})
  mysql_db:
    name: "{{ asterisk_db_cdrdbname }}"    # asteriskcdrdb
    encoding: utf8
    collation: utf8_general_ci
    login_host: "{{ asterisk_db_host }}"
    state: present


- name: FreePBX - Create new php sessions dir /var/lib/php/asterisk_sessions/ - SEE 'php_value session.save_path /var/lib/php/asterisk_sessions/' IN pbx/templates/freepbx.conf.j2
  file:
    path: /var/lib/php/asterisk_sessions/
    state: directory

- name: FreePBX - Set ownership for new php sessions dir (asterisk:asterisk)
  file:
    dest: /var/lib/php/asterisk_sessions/
    owner: asterisk
    group: asterisk
    recurse: yes

- name: "FreePBX - Populate /etc/asterisk/freepbx_chown.conf to prevent 'fwconsole chown' takeover of /var/lib/php/sessions"    # And possibly later /etc/freepbx.conf, /var/log/asterisk/freepbx.log, /var/spool/asterisk/cache
  blockinfile:
    content: |
      [blacklist]
      directory = /var/lib/php/sessions
    marker: "; {mark} ANSIBLE MANAGED BLOCK"
    dest: /etc/asterisk/freepbx_chown.conf
    owner: asterisk
    group: asterisk
    create: yes


- name: FreePBX - 2-step install - won't run if {{ freepbx_install_dir }} already exists - CAN TAKE 3-12 MIN OR LONGER!
  command: "{{ item }}"
  args:
    chdir: "{{ freepbx_src_dir }}"
    creates: "{{ freepbx_install_dir }}"    # /var/www/html/freepbx
  with_items:
    - ./start_asterisk start
    - ./install -n --webroot {{ freepbx_install_dir }} --dbuser {{ asterisk_db_user }} --dbpass {{ asterisk_db_password }} --dbname {{ asterisk_db_dbname }} --cdrdbname {{ asterisk_db_cdrdbname }}

- name: "Run 'fwconsole stop' and 'killall -9 safe_asterisk' to stop both Asterisk processes -- this avoids \"Unable to run Pre-Asterisk hooks, because Asterisk is already running\" in 'journalctl -u freepbx' logs"
  command: "{{ item }}"
  with_items:
    - fwconsole stop
    - killall -9 safe_asterisk        # 2021-08-08: Stronger medicine needed for 64-bit Ubuntu Server 21.04 on RPi 4.  Originally from @jvonau's PR #2912.
    - killall -9 "PM2 v4.5.0: God"    # 2021-08-09: Missed by fwconsole (does this matter?)
    # - killall -9 asterisk       # 2021-08-05: Also from @jvonau's PR #2912, to brute force this.  In the end, above 'fwconsole stop' works more gracefully.
    # - ./start_asterisk stop     # Buggy!
    # - /usr/sbin/asterisk -rx "core stop gracefully"
    # - fwconsole reload
    # - fwconsole restart
    # - fwconsole ma disablerepo commercial
    # - fwconsole ma installall
    # - fwconsole ma delete firewall
    # - fwconsole reload
    # - fwconsole restart
  ignore_errors: yes    # 2021-08-08: For things like 'killall -9 safe_asterisk' that fail when process doesn't exist

# 2021-08-06: This stanza works, but above is more graceful.  (FYI PRs #2908,
# #2912, #2913 didn't quite work -- whereas this PR #2915 at least worked!)
# - name: FreePBX - Run 'systemctl restart freepbx' TWICE (THIS IS 1 OF 2) to get past 'systemctl status freepbx' glitch "Unable to run Pre-Asterisk hooks, because Asterisk is already running"
#   systemd:
#     daemon_reload: yes
#     name: freepbx
#     enabled: yes
#     state: restarted


- name: FreePBX - Install /etc/odbc.ini from template (root:root, 0644 by default) for CDR 'asteriskcdrdb' - in future consider compiling ODBC driver for aarch64 per http://mghadam.blogspot.com/2021/03/install-asterisk-18-freepbx-15-on.html ?
  template:
    src: odbc.ini
    dest: /etc/

- name: FreePBX - Install /etc/systemd/system/freepbx.service from template (root:root, 0644 by default)
  template:
    src: freepbx.service
    dest: /etc/systemd/system/


- name: FreePBX - Run 'fwconsole ma upgradeall' on installed FreePBX modules, e.g. 16 default modules (of about 70 total) - CAN TAKE 2 MIN OR LONGER!
  command: fwconsole ma upgradeall

- name: FreePBX - Run 'fwconsole set CHECKREFERER 0' (0 means false) - if pbx_try_nginx - so 'Submit' button definitively works at http://box/freepbx >> Settings >> Advanced Settings -- FYI you can run 'fwconsole set -l' or 'fwconsole set CHECKREFERER' to view FreePBX settings -- FYI /etc/freepbx.conf can completely override FreePBX's stored settings if nec
  command: fwconsole set CHECKREFERER 0    # Or/later run 'fwconsole set CHECKREFERER 1' (1 means true) to restore FreePBX's default strict checking.
  when: pbx_try_nginx

# - name: Add "$amp_conf['CHECKREFERER'] = false;" to /etc/freepbx.conf #2931 - if pbx_try_nginx"
#   lineinfile:
#     path: /etc/freepbx.conf
#     insertbefore: '^\?>$'    # Match exact line '?>' -- BOTTOM OF FILE NEC!
#     line: "$amp_conf['CHECKREFERER'] = false;"
#   when: pbx_try_nginx

# - name: 'FreePBX - fix file permissions for NGINX: /etc/freepbx.conf (0644), /var/log/asterisk/freepbx.log (0666)'
#   file:
#     #state: file
#     path: "{{ item.path }}"
#     mode: "{{ item.mode }}"
#   with_items:
#     - { path: '/etc/freepbx.conf', mode: u=rw,g=r,o=r }                  # 2021-08-04: LATER ENDS UP AS 0660
#     - { path: '/var/log/asterisk/freepbx.log', mode: u=rw,g=rw,o=rw }    # 2021-08-04: LATER ENDS UP AS 0664
#   when: pbx_try_nginx

# - name: 'FreePBX - fix dir permissions for NGINX: /var/spool/asterisk/cache (0777)'
#   file:
#     state: directory
#     path: "{{ item }}"
#     mode: u=rwx,g=rwx,o=rwx    # 2021-08-04: MOST CONTENT THEREIN ENDS UP AS asterisk:asterisk 664 (files) & 775 (dirs)
#     # recurse: yes             # Probably Doesn't Help?
#   with_items:
#     # - /var/www/html/freepbx/admin/assets/less/cache
#     - /var/spool/asterisk/cache
#   when: pbx_try_nginx

# For 'pbx_try_nginx: True' -- FreePBX's initial page (Admin user registration)
# tries to set up a cron job but fails:
#   "Exception: Trying to edit user asterisk, when I'm running as www-data"
# 2021-08-10: Hacking /etc/freepbx.conf WAS NOT TESTED PROPERLY -- AS VARS MUST
# BE NEAR BOTTOM OF FILE: github.com/iiab/iiab/pull/2916#issuecomment-894585322
# - name: "2021-08-06: Try \"$amp_conf['AMPASTERISKWEBUSER'] = 'www-data';\" in /etc/freepbx.conf for #2916 registration cron fix ?'"
#   lineinfile:
#     path: /etc/freepbx.conf
#     #insertafter: '^<\?php$'    # Match exact line '<?php' -- BUT TOP OF FILE FAILS :(
#     insertbefore: '^\?>$'       # Match exact line '?>' -- BOTTOM OF FILE NECESSARY :)
#     line: "$amp_conf['AMPASTERISKWEBUSER'] = 'www-data';"
#   when: pbx_try_nginx