'use strict';
const { getClient, getPrefix } = require('./client');
const { allInputs, allOutputs } = require('../registry');
const { getInputType } = require('../input-types');

function publishAll() {
  const client = getClient();
  if (!client) return;
  const prefix = getPrefix();

  for (const inp of allInputs()) {
    const typeDef = getInputType(inp.typeCode);
    const stateTopic = `${prefix}/${inp.moduleSlug}/sensor/${inp.metric}`;
    const availTopic = `${prefix}/${inp.moduleSlug}/availability`;

    const payload = {
      name:             inp.name || inp.metric,
      unique_id:        `myprimal_${inp.id}`,
      state_topic:      stateTopic,
      value_template:   '{{ value_json.value }}',
      availability_topic: availTopic,
      device: {
        identifiers:  [`myprimal_${inp.moduleId}`],
        name:         inp.moduleName,
        manufacturer: 'Solem',
      },
    };

    if (typeDef.deviceClass) payload.device_class = typeDef.deviceClass;
    if (typeDef.unit)        payload.unit_of_measurement = typeDef.unit;

    const component = typeDef.haComponent;
    const configTopic = `homeassistant/${component}/myprimal_${inp.id}/config`;
    client.publish(configTopic, JSON.stringify(payload), { retain: true });
  }

  for (const out of allOutputs()) {
    const stateTopic   = `${prefix}/${out.moduleSlug}/output/${out.index}/state`;
    const cmdTopic     = `${prefix}/${out.moduleSlug}/output/${out.index}/set`;
    const availTopic   = `${prefix}/${out.moduleSlug}/availability`;

    const payload = {
      name:             out.name,
      unique_id:        `myprimal_${out.moduleId}_${out.index}`,
      state_topic:      stateTopic,
      command_topic:    cmdTopic,
      payload_on:       JSON.stringify({ action: 'run', duration: 30 }),
      payload_off:      JSON.stringify({ action: 'stop' }),
      value_template:   '{{ value_json.value }}',
      state_on:         '1',
      state_off:        '0',
      availability_topic: availTopic,
      device: {
        identifiers:  [`myprimal_${out.moduleId}`],
        name:         out.moduleName,
        manufacturer: 'Solem',
      },
    };

    const configTopic = `homeassistant/switch/myprimal_${out.moduleId}_${out.index}/config`;
    client.publish(configTopic, JSON.stringify(payload), { retain: true });
  }

  // Publish availability online for all modules
  const seen = new Set();
  for (const inp of allInputs()) {
    if (!seen.has(inp.moduleSlug)) {
      seen.add(inp.moduleSlug);
      getClient().publish(`${prefix}/${inp.moduleSlug}/availability`, 'online', { retain: true });
    }
  }

  console.log('[discovery] HA autodiscovery published');
}

module.exports = { publishAll };