import assert from "node:assert/strict";
import { execFileSync } from "node:child_process";
import { mkdtempSync, readFileSync, readdirSync, rmSync } from "node:fs";
import { tmpdir } from "node:os";
import path from "node:path";
import test from "node:test";
import { fileURLToPath } from "node:url";

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const extensionsRoot = path.join(root, "extensions");
const registry = "https://git.jb.codes/api/packages/jb/npm/";
const expectedWorkspaces = [
  "bash-cwd",
  "copy-all",
  "dictate",
  "effort-controls",
  "fast-browser",
  "file-search",
  "interactive-subagents",
  "lm-studio",
  "native-hooks",
  "prompt-snippets",
  "shared",
  "subagents",
  "todo-herdr",
  "update",
];

function readJson(file) {
  return JSON.parse(readFileSync(file, "utf8"));
}

function workspaceManifest(directory) {
  return readJson(path.join(extensionsRoot, directory, "package.json"));
}

function dependencyText(manifest) {
  return JSON.stringify({
    dependencies: manifest.dependencies,
    optionalDependencies: manifest.optionalDependencies,
    peerDependencies: manifest.peerDependencies,
  });
}

test("workspace inventory contains only active extensions", () => {
  const rootManifest = readJson(path.join(root, "package.json"));
  assert.equal(rootManifest.private, true);
  assert.deepEqual(rootManifest.workspaces.packages, [
    "extensions/*",
  ]);

  const actual = readdirSync(extensionsRoot)
    .filter((directory) => {
      try {
        workspaceManifest(directory);
        return true;
      } catch {
        return false;
      }
    })
    .sort();
  assert.deepEqual(actual, expectedWorkspaces);
});

test("imported package snapshots retain explicit main-branch provenance", () => {
  const inventory = readJson(path.join(root, "config", "imported-packages.json"));
  assert.equal(inventory.version, 1);
  assert.deepEqual(
    inventory.packages.map(({ name, branch, target }) => ({ name, branch, target })),
    [
      {
        name: "pi-interactive-subagents",
        branch: "main",
        target: "extensions/interactive-subagents",
      },
      {
        name: "pi-native-hooks",
        branch: "main",
        target: "extensions/native-hooks",
      },
      {
        name: "pi-todo-herdr",
        branch: "main",
        target: "extensions/todo-herdr",
      },
    ],
  );
  for (const entry of inventory.packages) {
    assert.match(entry.commit, /^[0-9a-f]{40}$/);
    assert.match(entry.source, /^ssh:\/\/git@git\.jb\.codes:7722\/jb\//);
    assert.match(
      readJson(path.join(root, entry.target, "package.json")).name,
      /^@jbcode\/pi-/,
    );
  }
});

test("publishable workspaces have Gitea-safe package contracts", () => {
  for (const directory of expectedWorkspaces) {
    const packageRoot = path.join(extensionsRoot, directory);
    const manifest = workspaceManifest(directory);
    if (manifest.private) continue;

    assert.match(manifest.name, /^@jbcode\/pi-[a-z0-9-]+$/);
    assert.equal(manifest.publishConfig?.registry, registry);
    assert.equal(manifest.engines?.node, ">=22.19.0");
    assert.equal(readFileSync(path.join(packageRoot, "LICENSE"), "utf8").length > 0, true);
    assert.equal(readFileSync(path.join(packageRoot, "README.md"), "utf8").length > 0, true);

    for (const entry of manifest.pi?.extensions ?? []) {
      assert.equal(readFileSync(path.resolve(packageRoot, entry), "utf8").length > 0, true);
    }
    for (const entry of manifest.pi?.skills ?? []) {
      assert.equal(readFileSync(path.resolve(packageRoot, entry, "SKILL.md"), "utf8").length > 0, true);
    }
  }
});

test("Bun packs concrete dependency versions and excludes tests", () => {
  const outputRoot = mkdtempSync(path.join(tmpdir(), "harness-tools-pack-"));
  try {
    for (const directory of expectedWorkspaces) {
      const manifest = workspaceManifest(directory);
      if (manifest.private) continue;
      const packageRoot = path.join(extensionsRoot, directory);
      const before = new Set(readdirSync(outputRoot));
      execFileSync(
        "bun",
        ["pm", "pack", "--destination", outputRoot, "--ignore-scripts", "--quiet"],
        { cwd: packageRoot, stdio: "pipe" },
      );
      const created = readdirSync(outputRoot).filter((entry) => !before.has(entry));
      assert.equal(created.length, 1, `${manifest.name} should create one tarball`);
      const tarball = path.join(outputRoot, created[0]);
      const packedManifest = JSON.parse(
        execFileSync("tar", ["-xOf", tarball, "package/package.json"], {
          encoding: "utf8",
        }),
      );
      assert.equal(dependencyText(packedManifest).includes("catalog:"), false);
      assert.equal(dependencyText(packedManifest).includes("workspace:"), false);
      const files = execFileSync("tar", ["-tzf", tarball], { encoding: "utf8" });
      assert.match(files, /^package\/LICENSE$/m);
      assert.match(files, /^package\/README\.md$/m);
      assert.doesNotMatch(files, /\.(?:test|spec)\.ts$/m);
      if (directory === "fast-browser") {
        assert.match(files, /^package\/browser_worker\.py$/m);
        assert.match(files, /^package\/fixtures\/form\.html$/m);
        assert.match(files, /^package\/skills\/fast-browser\/SKILL\.md$/m);
        assert.doesNotMatch(files, /(?:^|\/)test_[^/]+\.py$/m);
        assert.doesNotMatch(files, /__pycache__|\.pyc$/m);
      }
    }
  } finally {
    rmSync(outputRoot, { recursive: true, force: true });
  }
});