#!/usr/bin/env node
"use strict";

const fs = require("fs");
const path = require("path");
const { inspectReference, localReferenceSvg } = require("../packages/road-compiler/src/reference/gaode");

function parseArgs(argv) {
  const result = {};
  for (let index = 0; index < argv.length; index += 1) {
    if (!argv[index].startsWith("--")) continue;
    const key = argv[index].slice(2).replace(/-([a-z])/g, (_, letter) => letter.toUpperCase());
    result[key] = argv[index + 1] && !argv[index + 1].startsWith("--") ? argv[++index] : "true";
  }
  return result;
}

function required(args, key) {
  if (!args[key]) throw new Error(`--${key.replace(/[A-Z]/g, (letter) => `-${letter.toLowerCase()}`)} is required`);
  return path.resolve(args[key]);
}

function main() {
  const args = parseArgs(process.argv.slice(2));
  const result = inspectReference({
    referenceFile: required(args, "reference"),
    osmFile: required(args, "osm"),
    nativeIntersectionFile: required(args, "nativeIntersection"),
    nativeRoadSurfaceFile: args.nativeRoadSurface ? path.resolve(args.nativeRoadSurface) : null,
    nodeId: args.nodeId,
    clusterId: args.clusterId,
  });
  const output = path.resolve(args.output || `${args.reference.replace(/\.geojson$/i, "")}-wgs84.geojson`);
  const comparison = output.replace(/\.geojson$/i, "-comparison.json");
  fs.mkdirSync(path.dirname(output), { recursive: true });
  fs.writeFileSync(output, `${JSON.stringify(result.converted, null, 2)}\n`);
  fs.writeFileSync(comparison, `${JSON.stringify({ ...result, converted: undefined, matchedFeatures: undefined }, null, 2)}\n`);
  const svg = output.replace(/\.geojson$/i, "-overlay.svg");
  // Draw whatever the comparison actually matched: a per-node junction surface
  // for ordinary junctions, or the whole complex cluster for templated ones.
  const matchingNative = { type: "FeatureCollection", features: result.matchedFeatures || [] };
  fs.writeFileSync(svg, localReferenceSvg({ converted: result.converted, nativeIntersection: matchingNative, center: result.matchedOsmNode.coordinate }));
  console.log(JSON.stringify({ output, comparison, svg, ...result, converted: undefined, matchedFeatures: undefined }, null, 2));
}

if (require.main === module) main();