---
# The tasks below run before `validate_config.yml`.
# To avoid failing with a cryptic error message, we'll do validation here.
#
# This check is mostly relevant to people who explicitly define `matrix_synapse_workers_enabled_list`
# (Synapse Workers users from the earlier days of this PR - https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/456).
#
# In the future, it should be possible to remove this check.
# Our own code which dynamically builds `matrix_synapse_workers_enabled_list` does things right.
- name: Fail if required property not defined for worker
  ansible.builtin.fail:
    msg: "Synapse workers (like {{ matrix_synapse_worker_details | to_json }}) need to define a `{{ item }}` property"
  with_items:
    - id
    - name
    - type
    - app
    - port
    - webserving
  when: "item not in matrix_synapse_worker_details"

# Names are used for container names and systemd services.
# Routing happens based on container names, so Synapse processes that try to route to workers with underscores in the name will complain. Example:
# > InvalidCodepoint Codepoint U+005F at position 46 of 'matrix-synapse-worker-stream-writer-3-account_data' not allowed
- name: Fail if worker name includes underscore
  ansible.builtin.fail:
    msg: "Unrecognized Synapse worker `name`: `{{ matrix_synapse_worker_details.name }}`. It must not include underscores"
  when: "'_' in matrix_synapse_worker_details.name"

- name: Fail if worker type unknown
  ansible.builtin.fail:
    msg: "Unrecognized Synapse worker `type`: `{{ matrix_synapse_worker_details.type }}`. Supported types are: {{ matrix_synapse_known_worker_types | join(', ') }}"
  when: "matrix_synapse_worker_details.type not in matrix_synapse_known_worker_types"

- name: Fail if worker app unknown
  ansible.builtin.fail:
    msg: "Unrecognized Synapse worker `app`: `{{ matrix_synapse_worker_details.app }}`. Supported types are: {{ matrix_synapse_workers_avail_list | join(', ') }}"
  when: "matrix_synapse_worker_details.app not in matrix_synapse_workers_avail_list"

- when: "matrix_synapse_worker_details.type == 'stream_writer'"
  block:
    - name: Fail if stream_writer_stream not defined for stream_writer worker
      ansible.builtin.fail:
        msg: >-
          Synapse stream_writer workers (such as {{ item }}) need to define a valid `stream_writer_stream` property
          (not `{{ matrix_synapse_worker_details.stream_writer_stream | default('undefined') }}`).
          Supported types are: {{ matrix_synapse_workers_known_stream_writer_stream_types | join(', ') }}
      when: "'stream_writer_stream' not in matrix_synapse_worker_details or matrix_synapse_worker_details.stream_writer_stream not in matrix_synapse_workers_known_stream_writer_stream_types"

    - name: Fail if replication_port not defined for stream_writer worker
      ansible.builtin.fail:
        msg: "Synapse background workers of type stream_writer (such as {{ item }}) need to define a valid `replication_port` property"
      when: "'replication_port' not in matrix_synapse_worker_details"

- ansible.builtin.set_fact:
    matrix_systemd_services_list: "{{ matrix_systemd_services_list + [matrix_synapse_worker_details.name + '.service'] }}"

- ansible.builtin.set_fact:
    matrix_synapse_webserving_workers_systemd_services_list: "{{ matrix_synapse_webserving_workers_systemd_services_list + [matrix_synapse_worker_details.name + '.service'] }}"
  when: matrix_synapse_worker_details.webserving | bool

# Inject stream writers into the instance map.
- ansible.builtin.set_fact:
    matrix_synapse_instance_map: "{{ matrix_synapse_instance_map | combine({matrix_synapse_worker_details.name: {'host': matrix_synapse_worker_details.name, 'port': matrix_synapse_worker_details.replication_port}}) }}"
  when: matrix_synapse_worker_details.type in matrix_synapse_known_instance_map_eligible_worker_types