---
- name: Check for build tools
  block:
    - name: (CentOS/RHEL 8) Setup Python 3
      block:
        - name: (CentOS/RHEL 8) Install Python 3
          yum:
            name:
              - python3
              - python3-pip
              - python3-devel
            update_cache: yes

        - name: (Centos/RHEL 8) Set Python 3 as default
          alternatives:
            name: python
            path: /usr/bin/python3
            link: /usr/bin/python
      when:
        - ansible_facts['os_family'] == "RedHat"
        - ansible_facts['distribution_major_version'] is version('8', '==')

    - name: (Centos/RHEL) Install build tools
      yum:
        name:
          - "@Development tools"
          - ca-certificates
          - gcc
          - gd
          - gd-devel
          - glibc
          - glibc-common
          - perl-core
          - wget
          - zlib-devel
        update_cache: yes
      when: ansible_facts['os_family'] == "RedHat"

    - name: (Debian) Install backports repo for 'buster'
      apt_repository:
        filename: buster-backports
        repo: deb http://ftp.us.debian.org/debian buster-backports main
        update_cache: yes
        mode: 0644
      when: ansible_facts['distribution_release'] == "buster"

    - name: (Debian/Ubuntu) Install build tools
      apt:
        name:
          - build-essential
          - checkinstall
          - libtemplate-perl
          - python3-minimal
          - perl
          - tar
          - zlib1g-dev
        update_cache: yes
      when: ansible_facts['os_family'] == "Debian"

    - name: (Alpine Linux) Install build tools
      apk:
        name:
          - alpine-sdk
          - build-base
          - git
          - openrc
          - perl
          - python3
          - linux-headers
          - tar
          - wget
        update_cache: yes
      when: ansible_facts['os_family'] == "Alpine"

    - name: (Alpine Linux) Enable OpenRC
      copy:
        content: ""
        dest: /run/openrc/softlevel
        force: no
        owner: root
        mode: 0644
      when: ansible_facts['os_family'] == "Alpine"
  when: nginx_install_source_build_tools | bool

- name: Check for source installs
  block:
    - name: Check for PCRE install
      stat:
        path: /tmp/{{ pcre_version }}
      register: pcre_result

    - name: Check for ZLib install
      stat:
        path: /tmp/{{ zlib_version }}
      register: zlib_result

    - name: Check for OpenSSL install
      stat:
        path: /tmp/{{ openssl_version }}
      register: openssl_result

- name: (CentOS/RHEL) Install PCRE dependency from package
  yum:
    name: pcre-devel
    update_cache: yes
  when:
    - nginx_install_source_pcre | bool
    - ansible_facts['os_family'] == "RedHat"

- name: (Debian/Ubuntu) Install PCRE dependency from package
  apt:
    name: libpcre3-dev
    update_cache: yes
  when:
    - nginx_install_source_pcre | bool
    - ansible_facts['os_family'] == "Debian"

- name: (Alpine Linux) Install PCRE dependency from package
  apk:
    name: pcre-dev
    update_cache: yes
  when:
    - nginx_install_source_pcre | bool
    - ansible_facts['os_family'] == "Alpine"

- name: Install PCRE dependence from source
  block:
    - name: Download PCRE dependency
      get_url:
        url: "https://ftp.pcre.org/pub/pcre/{{ pcre_version }}.tar.gz"
        dest: "/tmp/{{ pcre_version }}.tar.gz"
        mode: 0600
        validate_certs: "{{ (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] is version('6', '=='))
                        | ternary('no', 'yes') }}"
      register: pcre_source

    - name: Unpack PCRE dependency
      unarchive:
        copy: no
        dest: /tmp/
        src: "{{ pcre_source.dest }}"
        mode: 0700

    - name: Configure PCRE dependency
      command: ./configure
      args:
        chdir: "/tmp/{{ pcre_version }}"

    - name: Make PCRE dependency
      make:
        chdir: "/tmp/{{ pcre_version }}"

    - name: Install PCRE dependency
      make:
        chdir: "/tmp/{{ pcre_version }}"
        target: install
  when:
    - not pcre_result.stat.exists | bool
    - not nginx_install_source_pcre | bool
    - not ansible_check_mode | bool

- name: (Centos/RHEL) Install ZLib dependency from package
  yum:
    name: zlib-devel
    update_cache: yes
  when:
    - nginx_install_source_zlib | bool
    - ansible_facts['os_family'] == "RedHat"

- name: (Debian/Ubuntu) Install ZLib dependency from package
  apt:
    name: zlib1g-dev
    update_cache: true
  when:
    - nginx_install_source_zlib | bool
    - ansible_facts['os_family'] == "Debian"

- name: (Alpine Linux) Install ZLib dependency from package
  apk:
    name: zlib-dev
    update_cache: yes
  when:
    - nginx_install_source_zlib | bool
    - ansible_facts['os_family'] == "Alpine"

- name: Install ZLib dependency from source
  block:
    - name: Download ZLib dependency
      get_url:
        url: "https://zlib.net/{{ zlib_version }}.tar.gz"
        dest: "/tmp/{{ zlib_version }}.tar.gz"
        mode: 0600
        validate_certs: "{{ (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] is version('6', '=='))
                        | ternary('no', 'yes') }}"
      register: zlib_source

    - name: Unpack ZLib dependency
      unarchive:
        copy: no
        dest: /tmp/
        src: "{{ zlib_source.dest }}"
        mode: 0700

    - name: Configure ZLib dependency
      command: ./configure
      args:
        chdir: "/tmp/{{ zlib_version }}"

    - name: Make ZLib dependency
      make:
        chdir: "/tmp/{{ zlib_version }}"

    - name: Install ZLib dependency
      make:
        chdir: "/tmp/{{ zlib_version }}"
        target: install
  when:
    - not zlib_result.stat.exists | bool
    - not nginx_install_source_zlib | bool
    - not ansible_check_mode | bool

- name: (CentOS/RHEL) Install OpenSSL dependency from package
  yum:
    name: openssl-devel
    update_cache: yes
  when:
    - nginx_install_source_openssl | bool
    - ansible_facts['os_family'] == "RedHat"

- name: (Debian/Ubuntu) Install OpenSSL dependency from package
  apt:
    name: libssl-dev
    update_cache: yes
  when:
    - nginx_install_source_openssl | bool
    - ansible_facts['os_family'] == "Debian"

- name: (Alpine Linux) Install OpenSSL dependency from package
  apk:
    name: openssl-dev
    update_cache: yes
  when:
    - nginx_install_source_openssl | bool
    - ansible_facts['os_family'] == "Alpine"

- name: Install OpenSSL dependency from source
  block:
    - name: Download OpenSSL dependency
      get_url:
        url: "https://www.openssl.org/source/{{ openssl_version }}.tar.gz"
        dest: "/tmp/{{ openssl_version }}.tar.gz"
        mode: 0600
        validate_certs: "{{ (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] is version('6', '=='))
                        | ternary('no', 'yes') }}"
      register: openssl_source

    - name: Unpack OpenSSL dependency
      unarchive:
        copy: no
        dest: /tmp/
        src: "{{ openssl_source.dest }}"
        mode: 0700

    - name: Configure OpenSSL dependency
      command: ./config --prefix=/usr/local/openssl --openssldir=/usr/local/openssl shared zlib
      args:
        chdir: "/tmp/{{ openssl_version }}"

    - name: Make OpenSSL dependency
      make:
        chdir: "/tmp/{{ openssl_version }}"

    - name: Install OpenSSL dependency
      make:
        chdir: "/tmp/{{ openssl_version }}"
        target: install
  when:
    - not openssl_result.stat.exists | bool
    - not nginx_install_source_openssl | bool
    - not ansible_check_mode | bool

- name: Get NGINX version
  block:
    - name: Fetch NGINX version
      uri:
        url: https://trac.nginx.org/nginx/browser
        return_content: yes
        validate_certs: "{{ (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] is version('6', '=='))
                        | ternary('no', 'yes') }}"
      check_mode: no
      register: nginx_versions

    - name: Set NGINX mainline version
      set_fact:
        nginx_version: "{{ nginx_versions.content | regex_search('release[^<]*') | regex_replace('release', 'nginx') }}"
      when: nginx_branch == "mainline"

    - name: Set NGINX stable version 1/2
      set_fact:
        nginx_version: "{{ nginx_versions.content | regex_search('stable[^<]*') | regex_replace('stable', 'release') }}"
      when: nginx_branch == "stable"

    - name: Set NGINX stable version 2/2
      set_fact:
        nginx_version: "{{ nginx_versions.content | regex_search(nginx_version + '[^<]*') | regex_replace('release', 'nginx') }}"
      when: nginx_branch == "stable"

    - name: Set NGINX download filename
      set_fact:
        nginx_download_name: "{{ nginx_version }}"

    - name: Check for NGINX install
      stat:
        path: /usr/sbin/nginx
        follow: yes
      register: nginx_result

- name: Add NGINX user
  user:
    name: nginx

- name: Install NGINX
  block:
    - name: Download NGINX
      get_url:
        url: "https://nginx.org/download/{{ nginx_download_name }}.tar.gz"
        dest: "/tmp/{{ nginx_download_name }}.tar.gz"
        mode: 0600
        validate_certs: "{{ (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] is version('6', '=='))
                        | ternary('no', 'yes') }}"
      register: nginx_source

    - name: Unpack NGINX
      unarchive:
        copy: no
        dest: /tmp/
        src: "{{ nginx_source.dest }}"
        mode: 0755

    - name: Configure NGINX
      command: >-
        ./configure
        --conf-path=/etc/nginx/nginx.conf
        --error-log-path=/var/log/nginx/error.log
        --http-log-path=/var/log/nginx/access.log
        --lock-path=/var/lock/nginx.lock
        --modules-path=/usr/lib/nginx/modules
        --prefix=/usr
        --pid-path=/var/run/nginx.pid
        --with-http_ssl_module
        --with-mail=dynamic
        --with-stream
        {{ nginx_install_source_pcre | ternary('', '--with-pcre=../' + pcre_version) }}
        {{ nginx_install_source_zlib | ternary('', '--with-zlib=../' + zlib_version) }}
        {{ nginx_install_source_openssl | ternary('', '--with-openssl=../' + openssl_version) }}
      args:
        chdir: "/tmp/{{ nginx_version }}"
      register: nginx_configure

    - name: Make NGINX
      make:
        chdir: "/tmp/{{ nginx_version }}"

    - name: Install NGINX
      make:
        chdir: "/tmp/{{ nginx_version }}"
        target: install

    - name: Upload systemd NGINX service file
      copy:
        src: services/nginx.systemd
        dest: /lib/systemd/system/nginx.service
        owner: root
        group: root
        mode: 0644
      when: ansible_facts['service_mgr'] == "systemd"

    - name: Enable systemd NGINX service file
      systemd:
        daemon_reload: yes
        name: nginx
        state: restarted
        enabled: yes
      when: ansible_facts['service_mgr'] == "systemd"
      notify: "(Handler) Run NGINX"

    - name: Upload upstart NGINX service file
      copy:
        src: services/nginx.upstart
        dest: /etc/init.d/nginx
        owner: root
        group: root
        mode: 0755
      when: ansible_facts['service_mgr'] == "upstart"

    - name: Upload Upstart NGINX service conf file
      copy:
        src: services/nginx.conf.upstart
        dest: /etc/init/nginx.conf
        owner: root
        group: root
        mode: 0644
      when: ansible_facts['service_mgr'] == "upstart"

    - name: Enable Upstart NGINX service reload
      command: initctl reload-configuration
      when: ansible_facts['service_mgr'] == "upstart"

    - name: Start Upstart NGINX service reload
      command: nginx
      when: ansible_facts['service_mgr'] == "upstart"
      notify: "(Handler) Run NGINX"

    - name: Upload SysVinit NGINX service file
      copy:
        src: services/nginx.sysvinit
        dest: /etc/init.d/nginx
        owner: root
        group: root
        mode: 0755
      when: ansible_facts['service_mgr'] == "sysvinit"
      notify: "(Handler) Run NGINX"

    - name: Upload OpenRC NGINX service file
      copy:
        src: services/nginx.openrc
        dest: /etc/init.d/nginx
        owner: root
        group: root
        mode: 0755
      when: ansible_facts['service_mgr'] == "openrc"

    - name: Enable OpenRC NGINX service
      command: rc-update add nginx default
      when: ansible_facts['service_mgr'] == "openrc"
      notify: (Handler) Run NGINX
  when:
    - not nginx_result.stat.exists | bool
    - not ansible_check_mode | bool

- name: Cleanup downloads
  file:
    path: "{{ item }}"
    state: absent
  loop:
    - "{{ pcre_source.dest }}"
    - "{{ zlib_source.dest }}"
    - "{{ openssl_source.dest }}"
    - "{{ nginx_source.dest }}"
  when: item is defined