---
- name: Autoupdate
  block:
    - name: Deploy autoupdate script
      copy:
        owner: root
        group: root
        mode: "0755"
        dest: /usr/local/bin/pacman-autoupdate
        content: |
          #!/usr/bin/env bash

          set -o errexit
          set -o nounset
          set -o pipefail

          # Prevent failures when not battery present
          shopt -s nullglob

          for battery in /sys/class/power_supply/*/capacity ; do
              capacity="$(< "$battery")"
              if (( "${capacity}" < 40 )) ; then
                  printf "Battery at %s%%, exiting\n" "${capacity}" >&2
                  exit 0
              fi
          done

          if nmcli --terse --fields GENERAL.METERED dev show 2>/dev/null | grep -q "yes" ; then
              printf "Detected metered connection, exiting\n" >&2
              exit 0
          fi

          # Make sure that keys are up to date, otherwise sig checks may fail
          pacman --sync --noprogressbar --noconfirm --refresh --needed archlinux-keyring

          pacman --sync --noprogressbar --noconfirm --sysupgrade

    - name: Install pacman autoupdate service
      ansible.builtin.copy:
        dest: /etc/systemd/system/pacman-autoupdate.service
        owner: root
        group: root
        mode: "0644"
        content: |
          [Service]
          Type=oneshot
          ExecStart=/usr/local/bin/pacman-autoupdate
      become: true

    - name: Install pacman autoupdate timer
      ansible.builtin.copy:
        dest: /etc/systemd/system/pacman-autoupdate.timer
        owner: root
        group: root
        mode: "0644"
        content: |
          [Timer]
          OnCalendar=daily
          OnBootSec=5min
          OnUnitInactiveSec=120min

          [Install]
          WantedBy=multi-user.target

    - name: Enable pacman autoupdate timer
      ansible.builtin.systemd:
        name: pacman-autoupdate.timer
        enabled: true
        state: started
        daemon_reload: true
      become: true
  become: true

- name: User configuration
  block:
    - name: Create user group
      ansible.builtin.group:
        name: "herta"
        state: present
      become: true

    - name: Create user
      ansible.builtin.user:
        name: "herta"
        state: present
        home: "/home/herta"
        create_home: true
        groups:
          - dotfiles
          - libvirt
          - wheel
          - wireshark
          - docker
          - sudonopw
          - games
          - kvm
          - video
        shell: /usr/bin/zsh
        skeleton: /dev/null
      become: true

- name: Display Manager
  block:
    - name: Enable sddm
      ansible.builtin.systemd:
        name: sddm.service
        enabled: true
        daemon_reload: true
      become: true

    - name: Create sddm config folder
      ansible.builtin.file:
        state: directory
        path: /etc/sddm.conf.d/
        owner: root
        group: root
        mode: "0755"

    - name: Enable autologin
      ansible.builtin.copy:
        dest: /etc/sddm.conf.d/autologin.conf
        owner: root
        group: root
        mode: "0644"
        content: |
          [Autologin]
          User=herta
          Session=plasma

    - name: Lock on startup
      ansible.builtin.copy:
        dest: /etc/xdg/kscreenlockerrc
        owner: root
        group: root
        mode: "0644"
        content: |
          [Daemon]
          LockOnStart=true

- name: Backup
  block:
    - name: create restic config directory
      file:
        path: /etc/restic
        state: directory
        owner: root
        group: root
        mode: "0755"
      become: true

    - name: create restic exclude file
      copy:
        dest: /etc/restic/exclude.lst
        content: |
          /home/*/.cache/**
          /home/*/.mozilla/firefox/*/Cache/**
        owner: root
        group: root
        mode: "0755"
      become: true

    - name: create restic cache directory
      file:
        path: /var/cache/restic
        state: directory
        owner: root
        group: root
        mode: "0700"
      become: true

    - name: create restic wrapper script
      copy:
        owner: root
        group: root
        mode: "0700"
        dest: /usr/local/bin/restic-cmd
        content: |
          #!/usr/bin/env bash
          source /etc/restic/env

          set -o nounset
          set -o errexit
          set -o pipefail

          export B2_ACCOUNT_ID
          export B2_ACCOUNT_KEY

          export RESTIC_PASSWORD_FILE=/etc/restic/repopassword

          restic \
            --cache-dir=/var/cache/restic/ \
            --repo="b2:${BUCKET_NAME}:backup" \
            --password-file=/etc/restic/repopassword \
            --verbose \
            "${@}"
      become: true

    - name: add backup script
      copy:
        owner: root
        group: root
        mode: "0700"
        dest: /usr/local/bin/restic-backup
        content: |
          #!/usr/bin/env bash

          set -o nounset
          set -o errexit
          set -o pipefail

          run() {
            name="${1}" ; shift
            printf '[%s] %s - start\n' "${name}" "$(date --utc --iso-8601=seconds)"
            "${@}"
            printf '[%s] %s - end\n' "${name}" "$(date --utc --iso-8601=seconds)"
          }

          run backup restic-cmd \
              backup \
              --exclude-file /etc/restic/exclude.lst \
              /home/

          run forget restic-cmd \
              forget \
              --prune
              --keep-daily 30 \
              --keep-monthly 12 \
              --keep-yearly 3
      become: true


    - name: Install restic backup service
      ansible.builtin.copy:
        dest: /etc/systemd/system/restic-backup.service
        owner: root
        group: root
        mode: "0644"
        content: |
          [Service]
          Type=oneshot
          ExecStart=systemd-inhibit /usr/local/bin/restic-backup
      become: true

    - name: Install restic backup timer
      ansible.builtin.copy:
        dest: /etc/systemd/system/restic-backup.timer
        owner: root
        group: root
        mode: "0644"
        content: |
          [Timer]
          OnCalendar=daily
          Persistent=true

          [Install]
          WantedBy=multi-user.target
      become: true

    - name: Enable restic backup timer
      ansible.builtin.systemd:
        name: restic-backup.timer
        enabled: true
        state: started
        daemon_reload: true
      become: true