// Qa E2E script supports OpenClaw repository automation.
import { pathToFileURL } from "node:url";

type QaE2eRuntime = Pick<
  typeof import("../extensions/qa-lab/api.js"),
  "isQaSelfCheckSuccessful" | "runQaE2eSelfCheck"
>;

type QaE2eDeps = {
  env?: NodeJS.ProcessEnv;
  loadRuntime?: () => Promise<QaE2eRuntime>;
  writeStdout?: (text: string) => void;
};

type QaE2eArgs = {
  help: boolean;
  outputPath: string;
};

async function loadQaE2eRuntime(): Promise<QaE2eRuntime> {
  return await import("../extensions/qa-lab/api.js");
}

export function enablePrivateQaScriptEnv(env: NodeJS.ProcessEnv = process.env) {
  env.OPENCLAW_BUILD_PRIVATE_QA = "1";
  env.OPENCLAW_ENABLE_PRIVATE_QA_CLI = "1";
  env.OPENCLAW_DISABLE_BUNDLED_PLUGINS = "0";
}

export function resolveQaE2eOutputPath(argv: readonly string[] = process.argv.slice(2)) {
  return parseQaE2eArgs(argv).outputPath;
}

export function usage(): string {
  return `Usage: pnpm qa:e2e [--output <path>]

Options:
  --output <path>  Markdown report output path
  -h, --help       Display help
`;
}

export function parseQaE2eArgs(argv: readonly string[]): QaE2eArgs {
  const args = argv[0] === "--" ? argv.slice(1) : argv;
  let outputPath = "";
  let positionalMode = false;
  for (let index = 0; index < args.length; index += 1) {
    const arg = args[index] ?? "";
    if (positionalMode) {
      if (!outputPath && arg.trim()) {
        outputPath = arg.trim();
        continue;
      }
      throw new Error(`Unexpected qa:e2e argument: ${arg}`);
    }
    if (arg === "--") {
      positionalMode = true;
      continue;
    }
    if (arg === "--help" || arg === "-h") {
      return { help: true, outputPath: ".artifacts/qa-e2e/self-check.md" };
    }
    const inlineOutput = arg.startsWith("--output=") ? arg.slice("--output=".length).trim() : null;
    if (inlineOutput !== null) {
      if (!inlineOutput) {
        throw new Error("--output requires a value");
      }
      outputPath = inlineOutput;
      continue;
    }
    if (arg === "--output") {
      const value = args[index + 1]?.trim();
      if (!value || value.startsWith("-")) {
        throw new Error("--output requires a value");
      }
      outputPath = value;
      index += 1;
      continue;
    }
    if (arg.startsWith("-")) {
      throw new Error(`Unknown qa:e2e option: ${arg}`);
    }
    if (outputPath) {
      throw new Error(`Unexpected qa:e2e argument: ${arg}`);
    }
    outputPath = arg.trim();
  }
  return { help: false, outputPath: outputPath || ".artifacts/qa-e2e/self-check.md" };
}

export async function main(
  argv: readonly string[] = process.argv.slice(2),
  deps: QaE2eDeps = {},
): Promise<number> {
  const args = parseQaE2eArgs(argv);
  if (args.help) {
    (deps.writeStdout ?? ((text: string) => process.stdout.write(text)))(usage());
    return 0;
  }
  enablePrivateQaScriptEnv(deps.env ?? process.env);
  const { isQaSelfCheckSuccessful, runQaE2eSelfCheck } = await (
    deps.loadRuntime ?? loadQaE2eRuntime
  )();
  const result = await runQaE2eSelfCheck({ outputPath: args.outputPath });
  (deps.writeStdout ?? ((text: string) => process.stdout.write(text)))(
    `QA self-check report: ${result.outputPath}\n`,
  );
  return isQaSelfCheckSuccessful(result) ? 0 : 1;
}

function isMainModule() {
  const entry = process.argv[1];
  return Boolean(entry) && import.meta.url === pathToFileURL(entry).href;
}

if (isMainModule()) {
  try {
    process.exitCode = await main();
  } catch (error) {
    process.stderr.write(`${error instanceof Error ? error.message : String(error)}\n`);
    process.exitCode = 1;
  }
}