import assert from "node:assert/strict";
import { mkdtempSync, readFileSync, readdirSync, rmSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { test } from "node:test";
import { componentSuites, runComponentTests, selectSuites } from "../scripts/run-component-tests.mjs";

test("component aliases select the existing contract and reject unknown input", () => {
  assert.deepEqual(selectSuites([]), Object.keys(componentSuites));
  assert.deepEqual(selectSuites(["page-layout", "page-layout"]), ["page-layout"]);
  assert.deepEqual(componentSuites["data-grid-actions"], ["data-grid-actions", "data-grid-sizing"]);
  assert.throws(() => selectSuites(["../../unowned"]), /Unknown component suite/);
});

test("every configured component test remains covered by the batch and standalone aliases", () => {
  const config = JSON.parse(readFileSync(new URL("../tsconfig.component-tests.json", import.meta.url), "utf8"));
  const packageJson = JSON.parse(readFileSync(new URL("../package.json", import.meta.url), "utf8"));
  const configured = config.include.filter((file) => file.startsWith("tests/")).map((file) => file.replace(/^tests\//, "").replace(/\.test\.tsx?$/, "")).sort();
  assert.deepEqual(Object.values(componentSuites).flat().sort(), configured);
  for (const name of Object.keys(componentSuites)) {
    assert.equal(packageJson.scripts[`test:${name}`], `node scripts/run-component-tests.mjs ${name}`);
  }
  assert.equal(packageJson.scripts["test:components"], "node scripts/run-component-tests.mjs");
});

test("one compile serves a batch and preserves structural follow-ups", async () => {
  const root = mkdtempSync(join(tmpdir(), "govoplan-component-runner-"));
  const commands = [];
  try {
    const result = await runComponentTests({ webuiRoot: root, compiler: "fixture-tsc", names: ["data-grid-actions", "dialog-focus"], run: async (argv) => commands.push(argv) });
    assert.equal(result.compiled, 1);
    assert.equal(commands.filter((argv) => argv[1] === "fixture-tsc").length, 1);
    assert.equal(commands.length, 5);
    assert(commands.at(-1)[1].endsWith("test-dialog-focus-structure.mjs"));
    assert.deepEqual(readdirSync(root), []);
  } finally { rmSync(root, { recursive: true, force: true }); }
});

test("overlapping runs have separate outputs and failures clean only owned output", async () => {
  const root = mkdtempSync(join(tmpdir(), "govoplan-component-runner-"));
  const outputs = [];
  let unblock;
  const bothStarted = new Promise((resolve) => { unblock = resolve; });
  const run = async (argv) => {
    if (argv[1] !== "fixture-tsc") return;
    outputs.push(argv.at(-1));
    if (outputs.length === 2) unblock();
    await bothStarted;
    throw new Error("fixture compilation failed");
  };
  try {
    const results = await Promise.allSettled([1, 2].map(() => runComponentTests({ webuiRoot: root, compiler: "fixture-tsc", names: ["page-layout"], run })));
    assert(results.every((result) => result.status === "rejected"));
    assert.equal(new Set(outputs).size, 2);
    assert.deepEqual(readdirSync(root), []);
  } finally { rmSync(root, { recursive: true, force: true }); }
});