import test from "node:test";
import assert from "node:assert/strict";
import { execFileSync } from "node:child_process";
import { existsSync, readFileSync } from "node:fs";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";

const packageRoot = resolve(dirname(fileURLToPath(import.meta.url)), "..");
const pkg = JSON.parse(readFileSync(resolve(packageRoot, "package.json"), "utf8"));

function getPackedPaths() {
  const output = execFileSync("npm", ["pack", "--dry-run", "--json"], {
    cwd: packageRoot,
    encoding: "utf8",
    stdio: ["ignore", "pipe", "pipe"],
    timeout: 30_000,
  });
  const [packResult] = JSON.parse(output) as Array<{ files: Array<{ path: string }> }>;
  return packResult.files.map((file) => file.path);
}

test("package.json exposes pi-subagents as a standalone pi package", () => {
  assert.equal(pkg.name, "pi-subagents");
  assert.equal(pkg.type, "module");
  assert.ok(Array.isArray(pkg.keywords));
  assert.ok(pkg.keywords.includes("pi-package"));
  assert.deepEqual(pkg.pi, {
    extensions: ["./index.ts"],
    prompts: ["./prompts/*.md"],
  });

  assert.equal(pkg.peerDependencies["@mariozechner/pi-ai"], "*");
  assert.equal(pkg.peerDependencies["@mariozechner/pi-coding-agent"], "*");
  assert.equal(pkg.peerDependencies["@mariozechner/pi-tui"], "*");
  assert.equal(pkg.peerDependencies["@sinclair/typebox"], "*");
  assert.deepEqual(pkg.dependencies ?? {}, {});
  assert.equal(pkg.bundledDependencies, undefined);
  assert.deepEqual(pkg.files, ["index.ts", "src", "prompts"]);

  assert.ok(existsSync(resolve(packageRoot, "index.ts")));
  assert.ok(existsSync(resolve(packageRoot, "src/wrapper/cli.mjs")));
  assert.ok(existsSync(resolve(packageRoot, "prompts/implement.md")));
  assert.ok(existsSync(resolve(packageRoot, "prompts/implement-and-review.md")));
  assert.ok(existsSync(resolve(packageRoot, "prompts/scout-and-plan.md")));
});

test("README documents local install, git install, and tmux PATH requirement", () => {
  const readme = readFileSync(resolve(packageRoot, "README.md"), "utf8");
  assert.match(readme, /pi install \/absolute\/path\/to\/subagents/);
  assert.match(readme, /pi install https:\/\/gitea\.rwiesner\.com\/pi\/pi-subagents/);
  assert.match(readme, /generic subagent/i);
  assert.doesNotMatch(readme, /specialized built-in roles/i);
  assert.doesNotMatch(readme, /markdown agent discovery/i);
  assert.match(readme, /tmux.*PATH/i);
});

test("npm pack includes runtime package assets", () => {
  const packedPaths = getPackedPaths();

  assert.ok(packedPaths.includes("index.ts"));
  assert.ok(packedPaths.includes("prompts/implement.md"));
  assert.ok(packedPaths.includes("prompts/implement-and-review.md"));
  assert.ok(packedPaths.includes("prompts/scout-and-plan.md"));
  assert.ok(packedPaths.includes("src/wrapper/cli.mjs"));
  assert.deepEqual(packedPaths.filter((p) => p.endsWith(".test.ts")), []);
});