---
# ============================================================================
# life-church/playbooks/thinkcenter-firmware.yml
# Firmware (LVFS/fwupd) upgrade + controlled reboot for thinkcenter ONLY.
# HIGH-RISK: applies device/UEFI firmware and REBOOTS the machine.
# become password from Infisical /lc-hosts at runtime.
#
# Behaviour:
#   - Installs fwupd if missing; refreshes LVFS metadata.
#   - Lists available firmware updates (get-updates).
#   - Applies updates with `fwupdmgr update` ONLY if updates exist.
#     Many UEFI/system-firmware updates are STAGED and flashed during the next
#     reboot (fwupd schedules them), so a reboot is required to complete them.
#   - Reboots the host (guarded by `do_reboot`, default true) and waits for it
#     to come back, then reports post-reboot firmware state.
#
# Controls (extra-vars / survey):
#   do_reboot=true|false   -> set false to apply/stage firmware but NOT reboot.
#   force_reboot=true      -> reboot even if no firmware update was applied
#                             (e.g. to also pick up a pending kernel update).
#
# UNDO: firmware is generally NOT downgradable safely. fwupd keeps history:
#   fwupdmgr get-history    # what was applied
#   Downgrade (only if a vendor build allows): fwupdmgr downgrade <device>
#   This is a ONE-WAY door for most UEFI updates — treat as irreversible.
# ============================================================================

# --- Play 1 (localhost): fetch thinkcenter sudo pass from Infisical ----------
- name: "thinkcenter firmware — resolve become password from Infisical"
  hosts: localhost
  gather_facts: false
  tasks:
    - name: "[resolve] Infisical creds from env"
      ansible.builtin.set_fact:
        infisical_client_id: "{{ lookup('env','INFISICAL_CLIENT_ID') }}"
        infisical_client_secret: "{{ lookup('env','INFISICAL_CLIENT_SECRET') }}"
        infisical_project_id: "{{ lookup('env','INFISICAL_PROJECT_ID') }}"
        infisical_url: "{{ lookup('env','INFISICAL_API_URL') | default('http://192.168.122.41:8080', true) }}"
        infisical_env_slug: "{{ lookup('env','INFISICAL_ENV_SLUG') | default('prod', true) }}"

    - name: "[resolve] Assert Infisical creds present"
      ansible.builtin.assert:
        that:
          - infisical_client_id | length > 0
          - infisical_client_secret | length > 0
          - infisical_project_id | length > 0
        fail_msg: "Infisical creds missing from Semaphore environment 'infisical-dev'."

    - name: "[infisical] Log in"
      infisical.vault.login:
        url: "{{ infisical_url }}"
        auth_method: universal_auth
        universal_auth_client_id: "{{ infisical_client_id }}"
        universal_auth_client_secret: "{{ infisical_client_secret }}"
      register: infisical_login
      no_log: true

    - name: "[infisical] Read /lc-hosts"
      infisical.vault.read_secrets:
        login_data: "{{ infisical_login.login_data }}"
        project_id: "{{ infisical_project_id }}"
        env_slug: "{{ infisical_env_slug }}"
        path: "/lc-hosts"
        as_dict: true
      register: lc_secrets
      no_log: true

    - name: "[set] Stash thinkcenter sudo pass"
      ansible.builtin.set_fact:
        thinkcenter_become_pass: "{{ lc_secrets.secrets['THINKCENTER_SUDO_PASS'] }}"
      no_log: true

# --- Play 2: firmware upgrade + reboot on thinkcenter ONLY -------------------
- name: "Firmware upgrade + reboot thinkcenter"
  hosts: thinkcenter
  gather_facts: true
  become: true
  vars:
    ansible_become_pass: "{{ hostvars['localhost'].thinkcenter_become_pass }}"
    do_reboot: true            # override to false to stage firmware without rebooting
    force_reboot: false        # reboot even if no firmware was applied
  tasks:
    - name: "[safety] Confirm we are on thinkcenter"
      ansible.builtin.assert:
        that: inventory_hostname == 'thinkcenter'
        fail_msg: "Refusing to run — this play is scoped to thinkcenter only."

    - name: "[fwupd] Ensure fwupd is installed"
      ansible.builtin.apt:
        name: fwupd
        state: present
        update_cache: true
        cache_valid_time: 3600
      register: fwupd_pkg
      until: fwupd_pkg is succeeded
      retries: 3
      delay: 15

    - name: "[fwupd] Refresh LVFS metadata (force)"
      ansible.builtin.command: fwupdmgr refresh --force
      register: fw_refresh
      changed_when: false
      failed_when: fw_refresh.rc not in [0, 2]   # rc 2 = metadata already current

    - name: "[fwupd] List available firmware updates"
      ansible.builtin.command: fwupdmgr get-updates --json
      register: fw_updates_json
      changed_when: false
      failed_when: false

    - name: "[fwupd] Parse whether any updates are available"
      ansible.builtin.set_fact:
        fw_update_devices: >-
          {{ (fw_updates_json.stdout | default('{}') | from_json).Devices | default([])
             | selectattr('Releases','defined') | map(attribute='Name') | list }}

    - name: "[fwupd] Set has-updates flag (devices carrying a Releases payload)"
      ansible.builtin.set_fact:
        fw_has_updates: "{{ fw_update_devices | length > 0 }}"

    - name: "[fwupd] Show updatable devices (if any)"
      ansible.builtin.debug:
        msg: "{{ fw_update_devices if fw_has_updates else 'No firmware updates available.' }}"

    - name: "[fwupd] Apply firmware updates (assume-yes, no interactive reboot)"
      ansible.builtin.command: fwupdmgr update --assume-yes --no-reboot-check
      register: fw_apply
      when: fw_has_updates
      changed_when: fw_apply.rc == 0
      failed_when: fw_apply.rc not in [0, 2]      # rc 2 = nothing to do

    - name: "[reboot] Check for pending OS reboot flag too"
      ansible.builtin.stat:
        path: /var/run/reboot-required
      register: os_reboot_flag

    - name: "[reboot] Decide whether to reboot"
      ansible.builtin.set_fact:
        reboot_now: "{{ do_reboot | bool and (fw_has_updates | bool or force_reboot | bool or os_reboot_flag.stat.exists) }}"

    - name: "[reboot] Reboot to flash staged firmware / complete updates"
      ansible.builtin.reboot:
        msg: "Rebooting to apply firmware/system updates (Ansible)"
        reboot_timeout: 600      # wait up to 10 min for it to come back
        pre_reboot_delay: 5
        post_reboot_delay: 30
        test_command: fwupdmgr --version
      when: reboot_now | bool

    - name: "[verify] fwupd history after run"
      ansible.builtin.command: fwupdmgr get-history
      register: fw_history
      changed_when: false
      failed_when: false

    - name: "[verify] Uptime after (confirms reboot happened)"
      ansible.builtin.command: uptime -p
      register: post_uptime
      changed_when: false

    - name: "[report] Firmware run summary"
      ansible.builtin.debug:
        msg:
          - "===== thinkcenter firmware ====="
          - "Updates available this run : {{ fw_has_updates }}"
          - "Firmware applied           : {{ fw_apply.changed | default(false) }}"
          - "OS reboot flag was set     : {{ os_reboot_flag.stat.exists }}"
          - "Rebooted this run          : {{ reboot_now }}"
          - "Uptime now                 : {{ post_uptime.stdout }}"
          - "fwupd history (last applied): see get-history output on host"
          - "NOTE: some UEFI updates flash during POST on the reboot — verify BIOS version in-firmware if critical."