matrix-docker-ansible-deploy/roles/custom/matrix-element-call/tasks/update_well_known_client.yml

---
- name: Read the existing well-known client file
  ansible.builtin.slurp:
    path: "{{ matrix_base_data_path }}/static-files/public/.well-known/matrix/client"
  register: client_file_content

- name: Load the existing JSON content
  ansible.builtin.set_fact:
    client_json: "{{ client_file_content['content'] | b64decode | from_json }}"

- name: Update the existing well-known client file for Element Call (RTC FOCI)
  ansible.builtin.set_fact:
    updated_client_json: "{{ client_json | combine({'org.matrix.msc4143.rtc_foci': [{'type': 'livekit', 'livekit_service_url': matrix_jwt_service_url}]}, recursive=True) }}"

- name: Write the updated well-known client file
  ansible.builtin.copy:
    content: "{{ updated_client_json | to_nice_json }}"
    dest: "{{ matrix_base_data_path }}/static-files/public/.well-known/matrix/client"
    mode: '0644'
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"