---
# Run from metal/: ansible-playbook playbooks/shelly-em.yaml -i localhost, \
#   --limit localhost --tags device
# Registry handover is managed separately after parallel MQTT sensors are verified.
- name: Configure the main Shelly EM telemetry without changing firmware or CoIoT
  hosts: localhost
  connection: local
  become: false
  gather_facts: false
  vars:
    shelly_em_url: http://shellyem-main.iot.grigri
    shelly_em_period: 2
    shelly_em_registry_action: inspect
    shelly_em_credential: "{{ lookup('ansible.builtin.pipe', 'pass show iot/shellyem-main') }}"
    shelly_em_password: "{{ shelly_em_credential.splitlines()[0] }}"
    shelly_em_user: "{{ shelly_em_credential | regex_search('(?m)^login: (.+)$', '\\1') | first }}"
  tasks:
    - name: Read the current device settings
      ansible.builtin.uri:
        url: "{{ shelly_em_url }}/settings"
        url_username: "{{ shelly_em_user }}"
        url_password: "{{ shelly_em_password }}"
        force_basic_auth: true
      register: shelly_em_before
      no_log: true
      tags: [device]

    - name: Refuse to configure a device without CoIoT and MQTT enabled
      ansible.builtin.assert:
        that:
          - shelly_em_before.json.coiot.enabled
          - shelly_em_before.json.mqtt.enable
          - shelly_em_period | int >= 1
      no_log: true
      tags: [device]

    - name: Apply and activate the periodic MQTT interval when needed
      when: shelly_em_before.json.mqtt.update_period | int != shelly_em_period | int
      tags: [device]
      block:
        - name: Store the periodic MQTT interval (firmware may time out after saving)
          ansible.builtin.uri:
            url: "{{ shelly_em_url }}/settings?mqtt_update_period={{ shelly_em_period }}"
            method: POST
            url_username: "{{ shelly_em_user }}"
            url_password: "{{ shelly_em_password }}"
            force_basic_auth: true
            timeout: 12
            status_code: [200, -1]
          changed_when: true
          no_log: true

        - name: Read back the stored MQTT interval before rebooting
          ansible.builtin.uri:
            url: "{{ shelly_em_url }}/settings"
            url_username: "{{ shelly_em_user }}"
            url_password: "{{ shelly_em_password }}"
            force_basic_auth: true
          register: shelly_em_saved
          failed_when: shelly_em_saved.json.mqtt.update_period | int != shelly_em_period | int
          no_log: true

        - name: Reboot once to activate the saved MQTT interval
          ansible.builtin.uri:
            url: "{{ shelly_em_url }}/reboot"
            url_username: "{{ shelly_em_user }}"
            url_password: "{{ shelly_em_password }}"
            force_basic_auth: true
            timeout: 5
            status_code: [200, -1]
          changed_when: true
          no_log: true

        - name: Wait for the HA setup dependency to answer after reboot
          ansible.builtin.uri:
            url: "{{ shelly_em_url }}/cit/d"
            url_username: "{{ shelly_em_user }}"
            url_password: "{{ shelly_em_password }}"
            force_basic_auth: true
            timeout: 4
          register: shelly_em_cit
          until: shelly_em_cit.status == 200
          retries: 20
          delay: 3
          no_log: true

    - name: Manage the two power entity registry assignments
      ansible.builtin.command:
        argv:
          - python3
          - "{{ playbook_dir }}/../../scripts/shelly-em-registry.py"
          - "{{ shelly_em_registry_action }}"
      register: shelly_em_registry
      changed_when: "'CHANGED' in shelly_em_registry.stdout"
      tags: [registry]

    - name: Report the power entity registry assignments
      ansible.builtin.debug:
        var: shelly_em_registry.stdout_lines
      tags: [registry]