import test from "node:test";
import assert from "node:assert/strict";
import fs from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import { execFile as callback } from "node:child_process";
import { promisify } from "node:util";
import { componentEntries } from "../src/capability-language/component-nix.js";
import { scaffoldRecipe } from "../src/capability-language/scaffold-recipes.js";
import { planStructure, applyStructure } from "../src/capability-language/structural-plan.js";
const execFile = promisify(callback);
test("checked component scaffolding composes with execution handlers without replacing authored files", async (context) => {
  const root = await fs.mkdtemp(path.join(os.tmpdir(), "qx-component-scaffold-"));
  context.after(() => fs.rm(root, { recursive: true, force: true }));
  await execFile("git", ["-C", root, "init"]);
  const source = { repository: "https://example.test/component.git", commit: "a".repeat(40) };
  const apply = async (
    command: Parameters<typeof scaffoldRecipe>[1],
    spec: Omit<Parameters<typeof scaffoldRecipe>[2], "source">,
  ) => applyStructure(await planStructure(root, await scaffoldRecipe(root, command, { ...spec, source })));
  await apply("package", {
    name: "Widgets",
    id: "package:widgets",
    revision: "package:widgets@1",
    template: "typescript-component",
    tools: { quixos: source, protocol: source, helpers: source, sdk: source },
  });
  const packageFile = path.join(root, "package.qx");
  await fs.writeFile(packageFile, "import interface View;\n" + (await fs.readFile(packageFile, "utf8")));
  await apply("component", {
    name: "Card",
    id: "component:card",
    declaration: 'module Card id "component:card" implements View.render;',
  });
  assert.deepEqual(
    { ...(await componentEntries(await fs.readFile(path.join(root, "components.nix"), "utf8"))) },
    {
      "component:card": { entry: "src/components/Card.tsx", export: "Card" },
    },
  );
  const card = path.join(root, "src/components/Card.tsx");
  await fs.appendFile(card, "\n// authored extension\n");
  const retained = await fs.readFile(card, "utf8");
  const flake = path.join(root, "flake.nix");
  await fs.appendFile(flake, "\n# retained authored toolchain configuration\n");
  const retainedFlake = await fs.readFile(flake, "utf8");
  const entriesFile = path.join(root, "components.nix");
  await fs.writeFile(
    entriesFile,
    (await fs.readFile(entriesFile, "utf8")).replace("{\n", "{\n  # retained entry comment\n"),
  );
  await apply("function", {
    name: "echo",
    id: "echo",
    declaration: 'function echo id "echo" : string -> string execution snapshot targets [browser,server];',
  });
  await apply("component", {
    name: "Details",
    id: "component:details",
    declaration: 'module Details id "component:details" implements View.render;',
  });
  assert.equal(await fs.readFile(card, "utf8"), retained);
  assert.equal(await fs.readFile(flake, "utf8"), retainedFlake);
  assert.match(await fs.readFile(entriesFile, "utf8"), /retained entry comment/);
  assert.match(await fs.readFile(path.join(root, "src/server.ts"), "utf8"), /echo/);
  assert.match(await fs.readFile(path.join(root, "flake.nix"), "utf8"), /mkCaminoReactPackage/);
  await assert.rejects(
    apply("component", {
      name: "Card",
      id: "component:other",
      declaration: 'module Card id "component:other" implements View.render;',
    }),
    /unique/,
  );
  await assert.rejects(
    apply("component", {
      name: "Injected",
      id: "component:inject",
      declaration:
        'module Injected id "component:inject" implements View.render; function sneak id "sneak" : unit -> unit;',
    }),
    /exactly one/,
  );
  const beforeUnsupported = await fs.readFile(packageFile, "utf8");
  await fs.writeFile(entriesFile, '{\n custom = builtins.abort "must not evaluate";\n}\n');
  await assert.rejects(
    apply("component", {
      name: "Unsupported",
      id: "component:unsupported",
      declaration: 'module Unsupported id "component:unsupported" implements View.render;',
    }),
    /literal-entry shape/,
  );
  assert.equal(await fs.readFile(packageFile, "utf8"), beforeUnsupported);
});

test("controller scaffolding preserves existing registrations and rejects duplicate identities", async (context) => {
  const root = await fs.mkdtemp(path.join(os.tmpdir(), "qx-controller-scaffold-"));
  context.after(() => fs.rm(root, { recursive: true, force: true }));
  await execFile("git", ["-C", root, "init"]);
  const source = { repository: "https://example.test/adapter.git", commit: "a".repeat(40) };
  const apply = async (
    command: Parameters<typeof scaffoldRecipe>[1],
    spec: Omit<Parameters<typeof scaffoldRecipe>[2], "source">,
  ) => applyStructure(await planStructure(root, await scaffoldRecipe(root, command, { ...spec, source })));
  await apply("package", {
    name: "Adapter",
    id: "adapter",
    revision: "adapter@1",
    tools: { quixos: source, protocol: source, helpers: source },
  });
  const controller = {
    subject: "display@1",
    snapshot: "display:requested",
    remote: "display:apply",
    input: "value" as const,
  };
  await apply("controller", { id: "display:controller", controller });
  await apply("controller", { id: "display:monitor", controller: { ...controller, snapshot: "display:status" } });
  const entries = JSON.parse(await fs.readFile(path.join(root, "quixos.controllers.json"), "utf8")).controllers;
  assert.equal(entries.length, 2);
  assert.deepEqual(entries[0], { id: "display:controller", ...controller });
  await assert.rejects(apply("controller", { id: "display:controller", controller }), /duplicate/);
});