---

# This task is for migrating existing mxisd data when transitioning to the ma1sd fork.

- name: Check for existent mxisd data
  stat:
    path: "{{ matrix_base_data_path }}/mxisd/data"
  register: ma1sd_migrate_mxisd_data_dir_stat

- name: Warn if mxisd data detected
  debug:
    msg: >
      You seem to have an existing mxisd folder in `{{ matrix_base_data_path }}/mxisd`.
      We are going to migrate it to ma1sd and rename the folder to mxisd.migrated.
  when: "ma1sd_migrate_mxisd_data_dir_stat.stat.exists"

- name: Check existence of old matrix-mxisd service
  stat:
    path: "{{ matrix_systemd_path }}/matrix-mxisd.service"
  register: matrix_mxisd_service_stat

- name: Ensure matrix-mxisd is stopped
  service:
    name: matrix-mxisd
    state: stopped
    enabled: false
    daemon_reload: true
  when: "matrix_mxisd_service_stat.stat.exists"

- name: Check existence of matrix-ma1sd service
  stat:
    path: "{{ matrix_systemd_path }}/matrix-ma1sd.service"
  register: matrix_ma1sd_service_stat
  when: "ma1sd_migrate_mxisd_data_dir_stat.stat.exists"

- name: Ensure matrix-ma1sd is stopped
  service:
    name: matrix-ma1sd
    state: stopped
    daemon_reload: true
  when: "ma1sd_migrate_mxisd_data_dir_stat.stat.exists and matrix_ma1sd_service_stat.stat.exists"

# We use shell commands for the migration, because the Ansible copy module cannot
# recursively copy remote directories (like `/matrix/mxisd/data/sign.key`) in older versions of Ansible.
- block:
    - name: Copy mxisd data files to ma1sd folder
      command: "cp -ar {{ matrix_base_data_path }}/mxisd/data {{ matrix_ma1sd_base_path }}"

    - name: Check existence of mxisd.db file
      stat:
        path: "{{ matrix_ma1sd_data_path }}/mxisd.db"
      register: matrix_ma1sd_mxisd_db_stat

    - name: Rename database (mxisd.db -> ma1sd.db)
      command: "mv {{ matrix_ma1sd_data_path }}/mxisd.db {{ matrix_ma1sd_data_path }}/ma1sd.db"
      when: "matrix_ma1sd_mxisd_db_stat.stat.exists"

    - name: Rename mxisd folder
      command: "mv {{ matrix_base_data_path }}/mxisd {{ matrix_base_data_path }}/mxisd.migrated"
  when: "ma1sd_migrate_mxisd_data_dir_stat.stat.exists"

- name: Ensure outdated matrix-mxisd.service doesn't exist
  file:
    path: "{{ matrix_systemd_path }}/matrix-mxisd.service"
    state: absent
  when: "matrix_mxisd_service_stat.stat.exists"

- name: Ensure systemd reloaded after removing outdated matrix-mxisd.service
  service:
    daemon_reload: true
  when: "matrix_mxisd_service_stat.stat.exists"