# Downloading dependencies
- name: wal-g dependencies
  become: yes
  apt:
    pkg:
      - libbrotli-dev
      - liblzo2-dev
      - libsodium-dev
      - cmake

# install go dependency for WAL-G
- name: wal-g go dependency
  get_url:
    url: "https://golang.org/dl/go{{ golang_version }}.linux-{{ platform }}.tar.gz"
    dest: /tmp
    checksum: "{{ golang_version_checksum[platform] }}"
    timeout: 60

- name: unpack go archive
  unarchive:
    remote_src: yes
    src: "/tmp/go{{ golang_version }}.linux-{{ platform }}.tar.gz"
    dest: /usr/local

# Download WAL-G
- name: wal-g - download latest version
  git:
    repo: https://github.com/wal-g/wal-g.git
    dest: /tmp/wal-g
    version: "v{{ wal_g_release }}"
  become: yes

- name: wal-g - pg_clean
  make:
    chdir: /tmp/wal-g
    target: pg_clean
    params:
      GOBIN: "/usr/local/bin"
      PATH: "{{ ansible_env.PATH }}:/usr/local/go/bin"
      USE_LIBSODIUM: true
  become: yes
  ignore_errors: yes

- name: wal-g - deps
  make:
    chdir: /tmp/wal-g
    target: deps
    params:
      GOBIN: "/usr/local/bin"
      PATH: "{{ ansible_env.PATH }}:/usr/local/go/bin"
      USE_LIBSODIUM: true
  become: yes
  ignore_errors: yes

- name: wal-g - build and install
  community.general.make:
    chdir: /tmp/wal-g
    target: pg_install
    jobs: "{{ parallel_jobs | default(omit) }}"
    params:
      GOBIN: "/usr/local/bin"
      PATH: "{{ ansible_env.PATH }}:/usr/local/go/bin"
      USE_LIBSODIUM: true
  become: yes

- name: Create wal-g group
  group:
    name: wal-g
    state: present

- name: Create wal-g user
  user:
    name: wal-g
    shell: /bin/false
    comment: WAL-G user
    group: wal-g
    groups: wal-g, postgres

- name: Create a config directory owned by wal-g
  file:
    path: /etc/wal-g
    state: directory
    owner: wal-g
    group: wal-g
    mode: '0770'

- name: Create /etc/wal-g/config.json
  file:
    path: /etc/wal-g/config.json
    state: touch
    owner: wal-g
    group: wal-g
    mode: '0664'

- name: Move custom wal-g.conf file to /etc/postgresql-custom/wal-g.conf
  template:
    src: "files/postgresql_config/custom_walg.conf.j2"
    dest: /etc/postgresql-custom/wal-g.conf
    mode: 0664
    owner: postgres
    group: postgres

- name: Add script to be run for restore_command
  template:
    src: "files/walg_helper_scripts/wal_fetch.sh"
    dest: /home/postgres/wal_fetch.sh
    mode: 0500
    owner: postgres
    group: postgres

- name: Add helper script for wal_fetch.sh
  template:
    src: "files/walg_helper_scripts/wal_change_ownership.sh"
    dest: /root/wal_change_ownership.sh
    mode: 0700
    owner: root

- name: Include /etc/postgresql-custom/wal-g.conf in postgresql.conf
  become: yes
  replace:
    path: /etc/postgresql/postgresql.conf
    regexp: "#include = '/etc/postgresql-custom/wal-g.conf'"
    replace: "include = '/etc/postgresql-custom/wal-g.conf'"

# Clean up Go
- name: Uninstall Go
  become: yes
  file:
    path: /usr/local/go
    state: absent