'use strict';

const Nantum = require('@hw/edge-sdks');
const { API } = Nantum;
const logger = require('../logger');
const { company, nantumUrl } = require('../config');

const { request } = API({ company, logger });

async function getVenRegistration(clientCertificateFingerprint) {
  const results = await request({
    uri: `${nantumUrl}/oadr_ven_registrations`,
    query: {
      client_certificate_fingerprint: clientCertificateFingerprint,
    },
  });
  return results[0];
}

async function createVenRegistration(ven) {
  await request({
    method: 'POST',
    uri: `${nantumUrl}/oadr_ven_registrations`,
    body: ven,
  });
}

async function deleteVenRegistration(id) {
  await request({
    method: 'DELETE',
    uri: `${nantumUrl}/oadr_ven_registrations/${id}`
  });
}

async function getVenReports(oadrVenRegistrationId) {
  const results = await request({
    uri: `${nantumUrl}/oadr_ven_reports`,
    query: {
      oadr_ven_registration_id: oadrVenRegistrationId,
    },
  });
  return results[0];
}

async function getSeenEvents(oadrVenRegistrationId) {
  const results = await request({
    uri: `${nantumUrl}/oadr_ven_seen_events`,
    query: {
      oadr_ven_registration_id: oadrVenRegistrationId,
    },
  });
  return results;
}

async function updateVenReports(id, reports) {
  await request({
    method: 'PUT',
    uri: `${nantumUrl}/oadr_ven_reports/${id}`,
    body: { reports },
  });
}

async function createVenReports(venReports) {
  await request({
    method: 'POST',
    uri: `${nantumUrl}/oadr_ven_reports`,
    body: venReports,
  });
}

async function getEventResponse(venId, eventId, modificationNumber) {
  const results = await request({
    uri: `${nantumUrl}/oadr_event_responses`,
    query: {
      oadr_ven_id: venId,
      oadr_event_id: eventId,
      modification_number: modificationNumber,
    },
  });
  return results[0];
}

async function createEventResponse(eventResponse) {
  await request({
    method: 'POST',
    uri: `${nantumUrl}/oadr_event_responses`,
    body: eventResponse,
  });
}

async function updateEventResponse(oadrEventResponseId, newProperties) {
  await request({
    method: 'PUT',
    uri: `${nantumUrl}/oadr_event_responses/${oadrEventResponseId}`,
    body: newProperties,
  });
}

async function markEventAsSeen(oadrVenRegistrationId, eventId, modificationNumber) {
  await request({
    method: 'POST',
    uri: `${nantumUrl}/oadr_ven_seen_events`,
    body: {
      oadr_ven_registration_id: oadrVenRegistrationId,
      oadr_event_id: eventId,
      modification_number: modificationNumber
    },
  });
}

async function getEvents(venRegistrationId) {
  const ven = await getVen(venRegistrationId);
  if (!ven) return []; // no ven: no events

  const eventVens = await request({
    uri: `${nantumUrl}/oadr_event_vens`,
    query: {
      oadr_ven_id: ven._id
    },
  });

  const eventIds = eventVens.map(eventVen => eventVen.oadr_event_id);

  return await request({
    uri: `${nantumUrl}/oadr_events`,
    query: {
      _id: eventIds
    },
  });
}

async function sendReportReadings(ven, readings) {
  logger.info(
    'received report readings',
    ven._id,
    JSON.stringify(readings, null, 2),
  );
}

async function getVen(venRegistrationId) {
  const results = await request({
    uri: `${nantumUrl}/oadr_vens`,
    query: {
      oadr_ven_registration_id: venRegistrationId,
    },
  });
  return results[0];
}

module.exports = {
  getEvents,
  getEventResponse,
  createEventResponse,
  updateEventResponse,
  markEventAsSeen,
  getVenRegistration,
  deleteVenRegistration,
  createVenRegistration,
  sendReportReadings,
  getVenReports,
  updateVenReports,
  createVenReports,
  getSeenEvents,
  getVen
};