# TODO For other distributions

- name: Set variables
  set_fact:
    arch_based: "{{ ansible_distribution == 'Archlinux' }}"
    # arch: "{{ ansible_lsb.id == 'Arch' }}"
    # manjaro: "{{ ansible_lsb.id == 'Manjaro' or ansible_lsb.id == 'Manjaro-ARM' }}"
    # termux: "{{ ansible_distribution == 'OtherLinux' and ansible_python.executable == '/data/data/com.termux/files/usr/bin/python' }}"
    # debian_based: "{{ ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' }}"
    # debian: "{{ ansible_distribution == 'Debian' }}"
    # ubuntu: "{{ ansible_distribution == 'Ubuntu' }}"

# Etckeeper

- name: Install etckeeper (Arch based)
  pacman:
    name: etckeeper
    state: present
  become: yes
  when: arch_based

- name: Check if etckeeper is initialized
  stat:
    path: /etc/.git
  register: etckeeper
  become: yes

- name: Initialize etckeeper
  command: "etckeeper init"
  become: yes
  when: not etckeeper.stat.exists
  changed_when: yes

- name: Configure git user.name for etckeeper
  git_config:
    scope: local
    repo: /etc
    name: "{{ item.name }}"
    value: "{{ item.value }}"
  loop:
    - name: "user.name"
      value: "etckeeper on {{ inventory_hostname_short }}"
    - name: "user.email"
      value: "etckeeper@{{ inventory_hostname }}"
  become: yes

# Arch configuration

- name: Install ccache
  pacman:
    name: ccache
    state: present
  become: yes
  when: arch_based

- name: Enable makepkg ccache
  replace:
    path: /etc/makepkg.conf
    regexp: '^BUILDENV=(.+)!ccache(.+)$'
    replace: 'BUILDENV=\1ccache\2'
  become: yes
  when: arch_based

- name: Set makepkg MAKEFLAGS
  replace:
    path: /etc/makepkg.conf
    regexp: '^#? *MAKEFLAGS=(.+)-j[0-9]+(.+)$'
    replace: "MAKEFLAGS=\\1-j{{ j }}\\2"
  become: yes
  vars:
    j: "{{ [ansible_processor_nproc - 1, 1] | max | int }}"
  when: arch_based

- name: Enable makepkg color
  replace:
    path: /etc/makepkg.conf
    regexp: '^BUILDENV=(.+)!color(.+)$'
    replace: 'BUILDENV=\1color\2'
  become: yes
  when: arch_based

- name: Enable pacman colors
  lineinfile:
    path: /etc/pacman.conf
    regexp: "^#?Color"
    line: "Color"
  become: yes
  when: arch_based

- name: Enable pacman pacman
  lineinfile:
    path: /etc/pacman.conf
    regexp: "^#?ILoveCandy"
    line: "ILoveCandy"
    insertafter: "^#?Color"
  become: yes
  when: arch_based

# Manjaro configuration

- name: Remove Manjaro's pamac
  pacman:
    name: pamac
    state: absent
  become: yes
  when: arch_based and False # I'm trying to remember why I usually delete this thing

# Xorg configuration

- name: Check if there is nvidia-xrun is installed
  stat:
    path: /etc/X11/nvidia-xorg.conf
  register: nvidia_xrun
  when: display_manager == 'x11'

- name: Add nvidia-xrun xorg config directory
  set_fact:
    xorg_common_config_dirs: "{{ xorg_default_config_dirs + xorg_nvidia_config_dirs }}"
  vars:
    xorg_default_config_dirs:
      - /etc/X11/xorg.conf.d
    xorg_nvidia_config_dirs: "{{ ['/etc/X11/nvidia-xorg.conf.d'] if nvidia_xrun.stat.exists else [] }}"
  when: display_manager == 'x11'

- name: Configure Xorg keyboard layout
  copy:
    src: xorg/keyboard.conf
    dest: "{{ item }}/00-keyboard.conf"
  become: yes
  when: display_manager == 'x11'
  notify: etc changed
  loop: "{{ xorg_common_config_dirs }}"

- name: Check if there is Intel backlight
  stat:
    path: /sys/class/backlight/intel_backlight
  register: intel_backlight
  when: display_manager == 'x11'

- name: Install Intel video drivers (Arch based)
  pacman:
    name: xf86-video-intel
    # state: "{{ intel_backlight.stat.exists }}"
    state: present
  become: yes
  when: display_manager == 'x11' and intel_backlight.stat.exists and arch_based

- name: Configure Xorg Intel backlight
  copy:
    src: xorg/intel_backlight.conf
    dest: "{{ item }}/20-intel_backlight.conf"
  become: yes
  when: display_manager == 'x11' and intel_backlight.stat.exists
  notify: etc changed
  loop: "{{ xorg_common_config_dirs }}"

- name: Configure Xorg touchpad behaviour
  copy:
    src: xorg/touchpad.conf
    dest: "{{ item }}/30-touchpad.conf"
  become: yes
  when: display_manager == 'x11'
  notify: etc changed
  loop: "{{ xorg_common_config_dirs }}"

- name: Configure Xorg joystick behaviour
  copy:
    src: xorg/joystick.conf
    dest: "{{ item }}/50-joystick.conf"
  become: yes
  when: display_manager == 'x11'
  notify: etc changed
  loop: "{{ xorg_common_config_dirs }}"

# Numlock on boot

- name: set numlock on boot
  copy:
    src: getty.service
    dest: /etc/systemd/system/getty@.service.d/override.conf
  become: yes
  notify:
    - etc changed
    - systemd changed
  when: auto_numlock

- name: Unset numlock on boot
  file:
    path: /etc/systemd/system/getty@.service.d/override.conf
    state: absent
  become: yes
  notify:
    - etc changed
    - systemd changed
  when: not auto_numlock

# TLP configuration

- name: Install TLP (Arch based)
  pacman:
    name: tlp
    state: present
  when: arch_based
  become: yes

- name: Start/enable TLP
  systemd:
    name: tlp
    state: started
    enabled: yes
  become: yes
  notify: etc changed

# Network configuration

- name: Install dhcpcd (Arch based)
  pacman:
    name: dhcpcd
    state: present
  when: arch_based
  become: yes

- name: Start/enable dhcpcd
  systemd:
    name: dhcpcd
    state: started
    enabled: yes
  become: yes
  notify: etc changed

- name: Install wpa_supplicant (Arch based)
  pacman:
    name: wpa_supplicant
    state: present
  when: arch_based
  become: yes
  notify:
    - wifi setup changed

- name: Configure wpa_supplicant
  template:
    src: wpa_supplicant.conf.j2
    dest: /etc/wpa_supplicant/wpa_supplicant.conf
  notify:
    - etc changed
    - wpa_supplicant changed
  become: yes
  tags:
    - wificonf

- name: Prepare directory for wpa_supplicant service override
  file:
    path: /etc/systemd/system/wpa_supplicant@.service.d
    state: directory
    mode: "u=rwx,g=rx,o=rx"
  become: yes

- name: Make wpa_supplicant use a common configuration file
  copy:
    src: wpa_supplicant.service
    dest: /etc/systemd/system/wpa_supplicant@.service.d/override.conf
  become: yes
  notify:
    - etc changed
    - systemd changed
    - wifi setup changed

- name: Disable wpa_supplicant for networkmanager
  systemd:
    name: wpa_supplicant
    enabled: no
  become: yes
  notify:
    - etc changed
    - wifi setup changed

- name: Start/enable wpa_supplicant for interface
  systemd:
    name: "wpa_supplicant@{{ item }}"
    enabled: yes
  become: yes
  notify:
    - etc changed
    - wifi setup changed
  loop: "{{ ansible_interfaces }}"
  when: "item.startswith('wl')"
# Could probably use something better like
# listing /sys/class/ieee80211/*/device/net/

- name: Uninstall networkmanager
  pacman:
    name: networkmanager
    state: absent
    extra_args: "--cascade --recursive"
  when: arch_based
  become: yes
  notify:
    - wifi setup changed

# Time synchronisation

- name: Mask systemd-timesyncd
  systemd:
    name: systemd-timesyncd
    state: stopped
    enabled: no
    masked: yes
  become: yes
  notify: etc changed
  when: arch_based

- name: Install chrony
  pacman:
    name: chrony
    state: present
  when: arch_based
  become: yes

- name: Configure chrony
  copy:
    src: chrony.conf
    dest: /etc/chrony.conf
  become: yes
  notify:
    - etc changed
    - chrony reconfigured
# TODO More configuration, RTC configuration

- name: Enable chronyd
  systemd:
    name: chronyd
    enabled: yes
  become: yes
  notify:
    - etc changed
    - chrony reconfigured

- name: Configure dhcpcd chrony hook
  copy:
    src: dhcpcd.exit-hook
    dest: /etc/dhcpcd.exit-hook
  become: yes
  notify: etc changed

# TODO Hibernation, if that's relevant
# $ sudo blkid | grep 'TYPE="swap"'
# $ sudoedit /etc/default/grub
# Add resume=UUID=<UUID-of-swap-partition> to GRUB_CMDLINE_LINUX_DEFAULT
# $ sudo grub-mkconfig -o /boot/grub/grub.cfg