- name: Check if Asterisk is already installed
  ansible.builtin.stat:
    path: /usr/sbin/asterisk
  register: asterisk_installed

- name: Set external signaling address
  ansible.builtin.set_fact:
    external_signaling_address: "{{ hostvars[groups['asterisk'][0]].ansible_host }}"
  when: external_signaling_address is not defined or external_signaling_address == ""

- name: Install build dependencies for Asterisk
  ansible.builtin.apt:
    name:
      - build-essential
      - libasound2-dev
      - libedit-dev
      - libjansson-dev
      - libncurses5-dev
      - libsqlite3-dev
      - libssl-dev
      - libxml2-dev
      - uuid-dev
      - wget
    state: present
    update_cache: true

- name: Create a directory for PJSIP source
  ansible.builtin.file:
    path: /usr/local/src/pjsip
    state: directory
    mode: '0755'
  when: not asterisk_installed.stat.exists

- name: Download PJSIP source
  ansible.builtin.get_url:
    url: https://github.com/pjsip/pjproject/archive/refs/tags/2.14.tar.gz
    dest: /usr/local/src/pjsip/pjproject-2.14.tar.gz
    mode: '0644'
  when: not asterisk_installed.stat.exists

- name: Extract PJSIP source
  ansible.builtin.unarchive:
    src: /usr/local/src/pjsip/pjproject-2.14.tar.gz
    dest: /usr/local/src/pjsip/
    remote_src: yes
  when: not asterisk_installed.stat.exists

- name: Build and install PJSIP
  ansible.builtin.shell:
    cmd: |
      ./configure CFLAGS="-DNDEBUG -DPJ_HAS_IPV6=1" --prefix=/usr --libdir=/usr/lib
      make -j$(nproc)
      make install
    chdir: /usr/local/src/pjsip/pjproject-2.14
  args:
    creates: /usr/lib/libpj.so
  when: not asterisk_installed.stat.exists

- name: Download Asterisk source
  ansible.builtin.get_url:
    url: "https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-{{ asterisk_version }}.tar.gz"
    dest: "/usr/local/src/asterisk-{{ asterisk_version }}.tar.gz"
    mode: '0644'
  when: not asterisk_installed.stat.exists

- name: Extract Asterisk source
  ansible.builtin.unarchive:
    src: "/usr/local/src/asterisk-{{ asterisk_version }}.tar.gz"
    dest: /usr/local/src/
    remote_src: true
    creates: "/usr/local/src/asterisk-{{ asterisk_version }}"
  when: not asterisk_installed.stat.exists

- name: Configure Asterisk
  ansible.builtin.command:
    cmd: ./configure
    chdir: "{{ asterisk_src_dir }}"
  when: not asterisk_installed.stat.exists

- name: Enable PJSIP modules
  ansible.builtin.command:
    cmd: make menuselect.makeopts
    chdir: "{{ asterisk_src_dir }}"
  when: not asterisk_installed.stat.exists

- name: Compile Asterisk
  ansible.builtin.command:
    cmd: make
    chdir: "{{ asterisk_src_dir }}"
  when: not asterisk_installed.stat.exists

- name: Install Asterisk
  ansible.builtin.command:
    cmd: make install
    chdir: "{{ asterisk_src_dir }}"
  when: not asterisk_installed.stat.exists

- name: Verify that PJSIP modules are installed
  ansible.builtin.stat:
    path: /usr/lib/asterisk/modules/chan_pjsip.so
  register: pjsip_module

- name: Fail if PJSIP modules are missing
  ansible.builtin.fail:
    msg: "PJSIP module not found! Check if libpjsip-dev was installed before building."
  when: not pjsip_module.stat.exists

- name: Install Asterisk samples
  ansible.builtin.command:
    cmd: make samples
    chdir: "{{ asterisk_src_dir }}"

- name: Install Asterisk startup scripts
  ansible.builtin.command:
    cmd: make config
    chdir: "{{ asterisk_src_dir }}"

- name: Enable and start the Asterisk service
  ansible.builtin.service:
    name: asterisk
    state: started
    enabled: true

- name: Deploy PJSIP configuration
  ansible.builtin.template:
    src: pjsip.conf.j2
    dest: "{{ asterisk_config_dir }}/pjsip.conf"
    owner: root
    group: root
    mode: '0644'
  notify: Reload Asterisk

- name: Deploy extensions configuration
  ansible.builtin.template:
    src: extensions.conf.j2
    dest: "{{ asterisk_config_dir }}/extensions.conf"
    owner: root
    group: root
    mode: '0644'
  notify: Reload Asterisk