import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import React from "react";
import { renderToStaticMarkup } from "react-dom/server";
import test from "node:test";

import { VedicChartSvg } from "../src/components/personal-report/vedic-chart-svg.tsx";
import { ChartVedicTab } from "../src/components/chart-page/chart-vedic-tab.tsx";
import { assembleChartView } from "../src/lib/chart-view-load.ts";
import { CHART_VIEW_LAYERS } from "../src/lib/chart-view-engine.ts";
import type { ChartViewOk } from "../src/lib/chart-view-contract.ts";
import {
  PLANET_GLYPH,
  PLANET_GLYPH_KEYS,
  parseChartOccupant,
} from "../src/lib/planet-glyphs.ts";
import { toNorthIndianChart } from "../src/lib/report-chart-block.ts";

Object.assign(globalThis, { React });

const globalStyles = readFileSync(new URL("../src/app/globals.css", import.meta.url), "utf8");
const layout = readFileSync(new URL("../src/app/layout.tsx", import.meta.url), "utf8");

/** The two house-table shapes that reach the chart as display text only. */
function textChart(occupantsByHouse: Record<number, string[]>) {
  return {
    houses: Array.from({ length: 12 }, (_, index) => ({
      houseNumber: index + 1,
      sign: "白羊座",
      occupants: occupantsByHouse[index + 1] ?? [],
    })),
  };
}

function draw(chart: Parameters<typeof VedicChartSvg>[0]["chart"], label = "测试盘"): string {
  return renderToStaticMarkup(React.createElement(VedicChartSvg, { chart, ariaLabel: label }));
}

test("a house of display text renders symbols, and a retrograde body gets a bar instead of 逆", () => {
  // The report chart block's own label form, which is what the markdown charts
  // and the rectification board's engine house tables look like on the wire.
  const markup = draw(textChart({ 5: ["水 19°", "罗逆 29°"] }));
  assert.match(markup, /☿/, "水 renders as ☿");
  assert.match(markup, /☊/, "罗 renders as ☊");
  assert.match(markup, /class="personal-report-chart-retrograde is-node"/, "罗逆 gets a bar");
  assert.doesNotMatch(markup, /class="personal-report-chart-retrograde is-mercury"/, "水 is direct");
  assert.doesNotMatch(markup, /°/, "degrees are gone from the chart");
  // 「逆」survives only in the legend line 横线=逆行.
  assert.deepEqual(markup.match(/逆/g), ["逆"]);
});

test("the rectification board's full Chinese names map to the same symbols", () => {
  // scripts/rectification/house_table.py emits 太阳 / 水星 / 罗睺, not 日 / 水 / 罗.
  const markup = draw(textChart({ 4: ["太阳", "水星", "罗睺", "计都"] }));
  for (const glyph of ["☉", "☿", "☊", "☋"]) assert.match(markup, new RegExp(glyph));
});

test("♀ and ♂ carry U+FE0E so iOS draws them as text, not emoji", () => {
  assert.equal(PLANET_GLYPH.venus, "♀︎");
  assert.equal(PLANET_GLYPH.mars, "♂︎");
  const markup = draw(textChart({ 2: ["金 1°", "火 2°"] }));
  assert.match(markup, /♀︎/);
  assert.match(markup, /♂︎/);
});

test("house 1 carries the As mark, because the North Indian first house is the ascendant", () => {
  const markup = draw(textChart({ 1: ["日 22°"], 3: ["月 12°"] }));
  assert.match(markup, /class="personal-report-chart-asc is-ascendant">As</);
  assert.equal((markup.match(/>As</g) ?? []).length, 1, "exactly one As, and only in house 1");
});

test("an explicit ascendant occupant folds into the same mark instead of doubling it", () => {
  const markup = draw(textChart({ 1: ["上升点", "日 22°"] }));
  assert.equal((markup.match(/>As</g) ?? []).length, 1);
  assert.doesNotMatch(markup, /上升点/);
});

test("the legend only appears once the chart carries bodies", () => {
  const empty = draw(textChart({}));
  assert.doesNotMatch(empty, /横线=逆行/);
  assert.doesNotMatch(empty, />As</, "an empty grid stays empty");
  assert.match(empty, /viewBox="0 0 400 400"/, "no legend band without a legend");

  const filled = draw(textChart({ 7: ["木 24°"] }));
  assert.match(filled, /横线=逆行/);
  assert.match(filled, /viewBox="0 0 400 452"/, "the legend sits under the square, not on it");
  for (const key of PLANET_GLYPH_KEYS) {
    assert.match(filled, new RegExp(`class="personal-report-chart-legend-glyph is-[a-z]+">${PLANET_GLYPH[key]}<`));
  }
  for (const name of ["日", "月", "水", "金", "火", "木", "土", "罗", "计"]) {
    assert.match(filled, new RegExp(`class="personal-report-chart-legend">${name}<`));
  }
});

test("six bodies in one house wrap onto two rows; a seventh becomes +N", () => {
  const six = draw(textChart({ 4: ["日 1°", "月 2°", "火 3°", "水 4°", "木 5°", "金 6°"] }));
  const ys = [...six.matchAll(/class="personal-report-chart-glyph[^"]*"/g)];
  assert.equal(ys.length, 6, "all six are drawn, none summarised");
  const rows = new Set(
    [...six.matchAll(/<text x="[\d.]+" y="([\d.]+)"[^>]*class="personal-report-chart-glyph/g)]
      .map((hit) => hit[1]),
  );
  assert.equal(rows.size, 2, "three per row, so six bodies occupy two rows");

  const seven = draw(textChart({
    4: ["日 1°", "月 2°", "火 3°", "水 4°", "木 5°", "金 6°", "土 7°"],
  }));
  assert.match(seven, />\+2</, "the overflow summary survives the symbol rewrite");
});

test("toNorthIndianChart hands the renderer structured bodies, not a string to re-read", () => {
  const chart = toNorthIndianChart({
    version: 1,
    id: "D1",
    title: "D1",
    layout: "north",
    ascendant: { sign: "Leo", degree: 12.3 },
    planets: [{ name: "Saturn", sign: "Capricorn", degree: 3.4, retrograde: true }],
  });
  const house = chart.houses.find((item) => item.occupantGlyphs?.length);
  assert.ok(house, "the occupied house carries occupantGlyphs");
  assert.deepEqual(house.occupantGlyphs, [{ key: "saturn", retrograde: true, degree: 3.4 }]);
  // The display string stays: aria-label, the house <details> table and screen
  // readers still read it.
  assert.deepEqual(house.occupants, ["土逆 3°"]);
});

test("an unknown occupant name is drawn as written rather than dropped", () => {
  const markup = draw(textChart({ 6: ["占星体1"] }));
  assert.match(markup, /class="personal-report-chart-occupant-text">占星体1</);
});

test("parseChartOccupant reads body and direction out of every label form in use", () => {
  assert.deepEqual(parseChartOccupant("水 19°"), {
    kind: "planet", key: "mercury", retrograde: false, label: "水 19°",
  });
  assert.deepEqual(parseChartOccupant("罗逆 29°"), {
    kind: "planet", key: "rahu", retrograde: true, label: "罗逆 29°",
  });
  assert.equal(parseChartOccupant("太阳").kind, "planet");
  assert.equal(parseChartOccupant("Mercury").kind, "planet");
  assert.equal(parseChartOccupant("Mars").kind, "planet");
  assert.equal(parseChartOccupant("Lagna").kind, "ascendant");
  assert.equal(parseChartOccupant("上升").kind, "ascendant");
  assert.equal(parseChartOccupant("占星体1").kind, "text");
});

test("every planet colour is defined once in :root and once in each dark block", () => {
  const tokens = [
    "sun", "moon", "mars", "mercury", "jupiter", "venus", "saturn", "node", "ascendant",
  ].map((name) => `--color-planet-${name}`);
  const block = (opener: string) => {
    const start = globalStyles.indexOf(opener);
    assert.notEqual(start, -1, `missing block: ${opener}`);
    return globalStyles.slice(start, globalStyles.indexOf("\n}", start));
  };
  const blocks = {
    light: block(":root {\n  color-scheme: light;"),
    preferred: block(':root:not([data-theme="light"]) {'),
    pinned: block(':root[data-theme="dark"] {'),
  };
  for (const [name, body] of Object.entries(blocks)) {
    for (const token of tokens) {
      const hits = [...body.matchAll(new RegExp(`${token}:\\s*(#[0-9a-f]{6});`, "gi"))];
      assert.equal(hits.length, 1, `${token} must be declared exactly once in the ${name} block`);
    }
  }
  // A colour that only exists in one theme is unreadable in the other.
  for (const token of tokens) {
    assert.notEqual(
      blocks.light.match(new RegExp(`${token}:\\s*(#[0-9a-f]{6});`, "i"))![1].toLowerCase(),
      blocks.pinned.match(new RegExp(`${token}:\\s*(#[0-9a-f]{6});`, "i"))![1].toLowerCase(),
      `${token} must be lifted for the dark ground, not reused`,
    );
  }
});

test("the symbol font is vendored, not fetched, and the stack falls through to system faces", () => {
  assert.match(layout, /src: "\.\/fonts\/NotoSansSymbols-planets\.woff2"/);
  assert.match(layout, /variable: "--font-planet-glyphs"/);
  assert.doesNotMatch(layout, /from ["']next\/font\/google["']/);
  const font = readFileSync(new URL("../src/app/fonts/NotoSansSymbols-planets.woff2", import.meta.url));
  assert.equal(Buffer.from(font.subarray(0, 4)).toString(), "wOF2");
  assert.match(
    globalStyles,
    /font-family: var\(--font-planet-glyphs\), "Apple Symbols", "Segoe UI Symbol", "Noto Sans Symbols", serif;/,
  );
  // The licence and provenance live beside the file, as they do for Inter.
  const source = readFileSync(new URL("../src/app/fonts/SOURCE.txt", import.meta.url), "utf8");
  assert.match(source, /NotoSansSymbols-planets\.woff2/);
  assert.match(source, /Open Font License/);
});

const profile = {
  name: "示例",
  date: "1990-06-15",
  time: "12:00",
  placeLabel: "北京",
  latitude: 39.9042,
  longitude: 116.4074,
  timezoneOffset: 8,
  timezoneId: "Asia/Shanghai",
  ayanamsa: "raman",
  birthTimeStatus: "confirmed",
};

const golden = JSON.parse(
  readFileSync(new URL("./fixtures/chart-view-golden.json", import.meta.url), "utf8"),
) as { chart: Record<string, unknown>; varga_full: Record<string, unknown>; chara: Record<string, unknown> };

async function okView(): Promise<ChartViewOk> {
  const result = await assembleChartView({
    userId: "user-1",
    profile,
    asOf: "2026-09-15",
    layers: CHART_VIEW_LAYERS,
    postEngine: async (path) => {
      if (path === "/api/chart") return { status: "ok", payload: golden.chart };
      if (path === "/api/varga_full") return { status: "ok", payload: golden.varga_full };
      if (path === "/api/dasha/chara") return { status: "ok", payload: golden.chara };
      return { status: "http_error", path, elapsedMs: 1, httpStatus: 500 };
    },
  });
  assert.equal(result.body.status, "ok");
  return result.body as ChartViewOk;
}

test("the chart page planet table carries the columns the chart stopped drawing", async () => {
  const view = await okView();
  const markup = renderToStaticMarkup(
    React.createElement(ChartVedicTab, { view, vargaId: "D1", onSelectVarga: () => {} }),
  );
  const headers = [...markup.matchAll(/<th scope="col">([^<]*)<\/th>/g)].map((hit) => hit[1]);
  assert.deepEqual(headers, ["行星", "黄道经度", "速度", "宫位", "星宿", "宿主", "pada", "状态"]);
  // The ascendant is a row, and it is the first one.
  assert.match(markup, /<tbody><tr><th scope="row"><span class="chart-page-planet-glyph is-ascendant">As<\/span>/);
  assert.match(markup, /上升/);
  // Degrees keep their arc-minutes: 29°59′ and 0°01′ are a sign apart.
  assert.match(markup, /\d+°\d\d′/);
  assert.match(markup, /class="chart-page-planet-glyph is-sun">☉<\/span> 太阳/);
  assert.match(markup, /class="chart-page-planet-abbr">Su</);
  assert.doesNotMatch(markup, /星座与度数/, "the old four-column header is gone");
});