/* 589-1 경위도 겹 → TM 자리 헬퍼 — `B04_PreProcess_UI_MapRender(_Prepare).ts` 의 `createTmNormalizer` ·
 * `normOfLonLat` · `imageScreenMatrix` 를 stdin 입력으로 돌려 JSON 으로 냄.
 *   입력 { meta, lonlat: [[lon, lat]], image: [w, h], views: [[w, h, scale, ox, oy]] }
 */
const path = require("path");
const { makeLoader } = require("./helper_ts_stub_loader.cjs");

const ROOT = path.join(__dirname, "..", "..");
const { load } = makeLoader({ root: ROOT, ui: () => ({ themeColor: () => "" }) });
const render = load("B04_PreProcess", "B04_PreProcess_UI_MapRender.ts");
const prep = load("B04_PreProcess", "logic", "B04_PreProcess_UI_MapRender_Prepare.ts");

const input = JSON.parse(require("fs").readFileSync(0, "utf-8"));
const { meta } = input;
const tmNorm = render.createTmNormalizer(meta);
const oldNorm = render.createNormalizer(meta);
const unit = { width: 1, height: 1, scale: 1, offsetX: 0, offsetY: 0 };
unit.mapRect = { x: 0, y: 0, width: 1, height: 1 };
const out = {
  hasToNorm: typeof tmNorm.toNorm === "function",
  tm: input.lonlat.map(([lon, lat]) => prep.normOfLonLat(tmNorm, lon, lat)),
  old: input.lonlat.map(([lon, lat]) => prep.normOfLonLat(oldNorm, lon, lat)),
  oldScreen: input.lonlat.map(([lon, lat]) => render.lonLatToScreen(oldNorm, unit, lon, lat)),
  views: input.views.map(([w, h, scale, ox, oy]) => {
    const mapRect = render.computeMapRect(meta, w, h);
    const view = { width: w, height: h, scale, offsetX: ox, offsetY: oy, mapRect };
    const [iw, ih] = input.image;
    const toScreen = (nx, ny) => render.normalizedToScreen(view, nx, ny);
    const matrix = prep.imageScreenMatrix(meta, tmNorm, iw, ih, toScreen, w / 2, h / 2);
    return { mapRect, matrix };
  }),
};
process.stdout.write(JSON.stringify(out));