const { test, before, after } = require('node:test');
const assert = require('node:assert');
const fs = require('fs');
const os = require('os');
const path = require('path');

let requestRouter = async () => ({ statusCode: 200, headers: {}, body: { text: async () => '{}' } });
const undici = require('undici');
const _origUndiciRequest = undici.request;
undici.request = (...a) => requestRouter(...a);
delete require.cache[require.resolve('../lib/hosters')];
const hostersMod = require('../lib/hosters');
const { uploadFile } = hostersMod;

let tmpFile;
let origFetch;
before(() => {
  tmpFile = path.join(os.tmpdir(), `byse-itest-${process.pid}.mkv`);
  fs.writeFileSync(tmpFile, Buffer.alloc(2048, 7));
  origFetch = global.fetch;
});
after(() => {
  global.fetch = origFetch;
  undici.request = _origUndiciRequest;
  delete require.cache[require.resolve('../lib/hosters')];
  try { fs.unlinkSync(tmpFile); } catch {}
});

function stubByseUploadServer() {
  global.fetch = async (url) => {
    if (/upload\/server/.test(String(url))) {
      return { status: 200, text: async () => JSON.stringify({ status: 200, result: 'https://node1.byse.sx/upload/01' }) };
    }
    return { status: 200, text: async () => '{"status":200}' };
  };
}

test('byse explicit "Not video file format" throws fast WITHOUT recovery polling', async () => {
  stubByseUploadServer();
  let listCalls = 0;
  requestRouter = async (url, opts) => {
    const u = String(url);
    if (/\/api\/file\/list/.test(u)) {
      listCalls++;
      return { statusCode: 200, headers: {}, body: { text: async () => '{"status":200,"result":{"files":[]}}' } };
    }
    if (opts && opts.body && typeof opts.body[Symbol.asyncIterator] === 'function') {
      for await (const chunk of opts.body) { if (chunk && chunk.length === -1) break; }
    }
    return {
      statusCode: 200,
      headers: { 'content-type': 'application/json' },
      body: { text: async () => JSON.stringify({ status: 200, msg: 'OK', files: [{ filecode: '', filename: 'x.mkv', status: 'Not video file format' }] }) }
    };
  };

  await assert.rejects(
    () => uploadFile('byse.sx', tmpFile, 'VALIDKEY', null, null, null),
    (err) => err.fileRejected === true && /Not video file format/i.test(err.message)
  );

  assert.strictEqual(listCalls, 1, 'file/list should be hit ONCE (baseline only) — no 15-attempt recovery poll on explicit rejection');
});

test('byse empty filecode WITHOUT explicit rejection still polls recovery', async () => {
  stubByseUploadServer();
  let listCalls = 0;
  requestRouter = async (url, opts) => {
    const u = String(url);
    if (/\/api\/file\/list/.test(u)) {
      listCalls++;
      const body = listCalls === 1
        ? '{"status":200,"result":{"files":[]}}'
        : JSON.stringify({ status: 200, result: { files: [{ file_code: 'RECOVERED99', title: path.basename(tmpFile) }] } });
      return { statusCode: 200, headers: {}, body: { text: async () => body } };
    }
    if (opts && opts.body && typeof opts.body[Symbol.asyncIterator] === 'function') {
      for await (const chunk of opts.body) { if (chunk && chunk.length === -1) break; }
    }
    return {
      statusCode: 200,
      headers: { 'content-type': 'application/json' },
      body: { text: async () => JSON.stringify({ status: 200, msg: 'OK' }) }
    };
  };

  const res = await uploadFile('byse.sx', tmpFile, 'VALIDKEY', null, null, null);
  assert.strictEqual(res.file_code, 'RECOVERED99');
  assert.ok(listCalls >= 2, 'recovery polling must run when there is no explicit rejection');
});