# SPDX-FileCopyrightText: 2026 MDAD project contributors
# SPDX-FileCopyrightText: 2026 Slavi Pantaleev
#
# SPDX-License-Identifier: AGPL-3.0-or-later

---

# Migrates from the conduwuit server implementation (`/matrix/conduwuit`) to tuwunel (`/matrix/tuwunel`).
# Tuwunel is the official successor to conduwuit and reads conduwuit's RocksDB layout directly.
# We back up the freshly generated tuwunel directory, copy conduwuit's data into it,
# rename the config file, restore tuwunel's labels file, and start the new service.

- name: Check existence of conduwuit directory
  ansible.builtin.stat:
    path: "{{ matrix_base_data_path }}/conduwuit"
  register: matrix_removed_conduwuit_directory_stat

- name: Check existence of tuwunel directory
  ansible.builtin.stat:
    path: "{{ matrix_base_data_path }}/tuwunel"
  register: matrix_tuwunel_directory_stat

- when: >
        matrix_removed_conduwuit_directory_stat.stat.exists | bool and
        matrix_tuwunel_directory_stat.stat.exists | bool
  block:
    - name: Ensure matrix-tuwunel.service systemd service is stopped
      ansible.builtin.systemd:
        name: matrix-tuwunel
        state: stopped
        enabled: false
        daemon_reload: true

    - name: Ensure tuwunel directory is backed up
      ansible.builtin.command:
        cmd: "mv {{ matrix_base_data_path }}/tuwunel {{ matrix_base_data_path }}/tuwunel_old"
        creates: "{{ matrix_base_data_path }}/tuwunel_old"
        removes: "{{ matrix_base_data_path }}/tuwunel"

    - name: Ensure conduwuit directory contents are copied to tuwunel
      ansible.builtin.copy:
        src: "{{ matrix_base_data_path }}/conduwuit/"
        dest: "{{ matrix_base_data_path }}/tuwunel"
        remote_src: true
        mode: preserve

    - name: Ensure conduwuit.toml file is renamed
      ansible.builtin.command:
        cmd: "mv {{ matrix_base_data_path }}/tuwunel/config/conduwuit.toml {{ matrix_base_data_path }}/tuwunel/config/tuwunel.toml"
        removes: "{{ matrix_base_data_path }}/tuwunel/config/conduwuit.toml"

    - name: Ensure tuwunel labels are restored
      ansible.builtin.copy:
        src: "{{ matrix_base_data_path }}/tuwunel_old/labels"
        dest: "{{ matrix_base_data_path }}/tuwunel/labels"
        remote_src: true
        force: true
        mode: preserve

    - name: Ensure directories ownership is set
      block:
        - name: Set tuwunel ownership
          ansible.builtin.file:
            path: "{{ matrix_base_data_path }}/tuwunel"
            state: directory
            owner: "{{ matrix_user_name }}"
            group: "{{ matrix_group_name }}"
            recurse: true

        - name: Set tuwunel_old ownership
          ansible.builtin.file:
            path: "{{ matrix_base_data_path }}/tuwunel_old"
            state: directory
            owner: "{{ matrix_user_name }}"
            group: "{{ matrix_group_name }}"
            recurse: true

    - name: Ensure matrix-tuwunel.service systemd service is started
      ansible.builtin.systemd:
        name: matrix-tuwunel
        state: started
        enabled: true
        daemon_reload: true