---
- name: Nextcloud Upgrade
  hosts: nextcloud
  become: yes

  vars:
    ansible_remote_tmp: "/var/tmp/.ansible"
    nextcloud_path: "/var/www/nextcloud"
    php_bin: "/usr/bin/php"

  pre_tasks:
    - name: Ensure remote tmp exists
      file:
        path: "/var/tmp/.ansible"
        state: directory
        owner: root
        group: root
        mode: "0755"

  tasks:

    - name: Pause playbook for 3 seconds
      pause:
        seconds: 3

    - name: 1.1 - Get current Nextcloud status
      command: "{{ php_bin }} occ status --output=json"
      args:
        chdir: "{{ nextcloud_path }}"
      register: nc_status_json

    - name: 1.2 - Parse current version
      set_fact:
        nc_current_version: "{{ (nc_status_json.stdout | from_json).versionstring }}"

    - name: 1.3 - Show current version
      debug:
        msg: "Current Nextcloud version: {{ nc_current_version }}"

    - name: 2.1 - Get list of installed apps
      command: "{{ php_bin }} occ app:list --output=json"
      args:
        chdir: "{{ nextcloud_path }}"
      register: app_list

    - name: 2.2 - Disable 3rd-party apps (non-core)
      command: "{{ php_bin }} occ app:disable {{ item }}"
      args:
        chdir: "{{ nextcloud_path }}"
      loop: "{{ (app_list.stdout | from_json).enabled | difference(['files','activity','dav','federation','files_external','files_sharing','files_trashbin','files_versions','lookup_server_connector','notifications','provisioning_api','settings','systemtags','theming','updatenotification','user_status']) }}"
      register: disabled_apps
      changed_when: "'Disabled' in disabled_apps.stdout"
      when: false   # Optional: Disabled if you want.

    - name: 2.3 - Save disabled apps list
      set_fact:
        nc_disabled_apps: "{{ disabled_apps.results | map(attribute='item') | list }}"

    - name: 3.1 - Enable maintenance mode
      command: "{{ php_bin }} occ maintenance:mode --on"
      args:
        chdir: "{{ nextcloud_path }}"
      register: maintenance_on
      changed_when: true

    - block:

        # ───────────────────────────────
        #  3.2 — RUN NEXTCLOUD UPDATER
        # ───────────────────────────────
        - name: 3.2 - Run Nextcloud CLI updater
          command: "{{ php_bin }} updater/updater.phar --no-interaction"
          args:
            chdir: "{{ nextcloud_path }}"
          register: updater_output
          retries: 3
          delay: 3
          until: updater_output.rc == 0

        - name: Check if update actually happened
          set_fact:
            update_message: "{{ updater_output.stdout }}"

        - name: If already newest version, show message
          debug:
            msg: "Nextcloud is already at the latest version. Nothing to upgrade."
          when: "'No update available' in updater_output.stdout"

        # ───────────────────────────────
        #  3.3 — DATABASE UPGRADE
        # ───────────────────────────────
        - name: 3.3 - Run occ upgrade (only if update occurred)
          command: "{{ php_bin }} occ upgrade"
          args:
            chdir: "{{ nextcloud_path }}"
          register: occ_upgrade_output
          when: "'No update available' not in updater_output.stdout"

      rescue:
        - name: ❌ UPGRADE FAILED - Details
          debug:
            msg: |
              !!!!!!!!!!! NEXTCLOUD UPGRADE FAILED !!!!!!!!!!!!
              Check logs:
                - {{ nextcloud_path }}/data/updater.log
                - {{ nextcloud_path }}/data/nextcloud.log

        - name: Mark failure
          set_fact:
            upgrade_failed: true

      always:

        - name: ALWAYS disable maintenance mode
          command: "{{ php_bin }} occ maintenance:mode --off"
          args:
            chdir: "{{ nextcloud_path }}"

  post_tasks:

    - name: Final status
      debug:
        msg: >-
          Upgrade finished successfully (or nothing to update).
      when: upgrade_failed is not defined

    - name: Final failure
      debug:
        msg: "Nextcloud upgrade failed — maintenance mode disabled."
      when: upgrade_failed is defined