import getUri, { intToTrkptId } from '../lib/ids';
import { appendToArray } from './gpx';
import { getFamily, put } from './lib';
import { putNewTrk } from './trk';
import { emptyWpt } from './wpt';

const emptyTrkseg: Trkseg = {
  trkpt: undefined,
  extensions: undefined,
};

export const putNewTrkseg = async (id?: IdTrk | IdGpx | IdTrkseg) => {
  let finalId = { ...id };
  if (!('trkseg' in finalId)) {
    const trkId = await putNewTrk(id);
    finalId = { ...trkId, trkseg: 0 };
  }
  const uri = getUri('trkseg', finalId);
  await put(
    uri,
    'trkseg',
    (trkseg) => {
      return trkseg;
    },
    emptyTrkseg
  );
  return finalId as IdTrkseg;
};

export const getTrkseg = async (params: any) => {
  const { id } = params;
  const docs = await getFamily(id, { include_docs: true });
  let target: any[];
  let trkseg: Trkseg | undefined = undefined;
  docs.rows.every((row: any) => {
    // level 0
    if (row.doc.type === 'trkseg') {
      if (!!trkseg) {
        return false; // Hack to stop if getFamily fails
      }
      target = [row.doc.doc];
      trkseg = row.doc.doc;
    }
    //level 1
    if (row.doc.type === 'trkpt') {
      target.splice(1);
      row.doc.doc.id = row.doc._id;
      appendToArray(target.at(-1), row.doc.type, row.doc.doc);
      target.push(row.doc.doc);
    }
    return true;
  });
  return trkseg;
};

export const putTrkseg = async (trkSegId: string, trkSeg = emptyTrkseg) => {
  await put(
    trkSegId,
    'trkseg',
    (doc) => {
      return trkSeg;
    },
    emptyTrkseg
  );
  return trkSegId;
};

export const appendTrkpt = async (params: any) => {
  const { trksegIdObj, trkpt } = params;
  const idTrkseg = getUri('trkseg', trksegIdObj);
  try {
    await db.get(idTrkseg);
  } catch {
    await put(idTrkseg, 'trkseg', (doc) => doc, emptyTrkseg);
  }
  const trkptIdPart = intToTrkptId(new Date(trkpt.time as string).valueOf());
  const trkptIdObj = { ...trksegIdObj, trkpt: trkptIdPart };
  const trkptId = getUri('trkpt', trkptIdObj);
  await put(trkptId, 'trkpt', (doc) => trkpt, emptyWpt);
  return trkptId;
};