import assert from 'node:assert/strict';
import test from 'node:test';
import {
  parseMemoryV2ConfigGapArgs,
  runMemoryV2ConfigGapCli,
} from './check-memory-v2-config-gaps.mjs';

function writableBuffer() {
  let value = '';
  return {
    write(chunk) {
      value += String(chunk);
    },
    value() {
      return value;
    },
  };
}

test('parseMemoryV2ConfigGapArgs validates options', () => {
  assert.deepEqual(
    parseMemoryV2ConfigGapArgs(['--backend', 'qdrant', '--format', 'shell']),
    { backend: 'qdrant', format: 'shell', help: false },
  );
  assert.throws(() => parseMemoryV2ConfigGapArgs(['--backend', 'bad']), /--backend must be one of/);
  assert.throws(() => parseMemoryV2ConfigGapArgs(['--format', 'xml']), /--format must be json or shell/);
});

test('runMemoryV2ConfigGapCli reports missing env vars in json mode', async () => {
  const stdout = writableBuffer();
  const code = await runMemoryV2ConfigGapCli({
    argv: ['--backend', 'mem0'],
    env: {},
    stdout,
  });
  const report = JSON.parse(stdout.value());

  assert.equal(code, 1);
  assert.equal(report.ok, false);
  assert.equal(report.reports[0].backend, 'mem0');
  assert.ok(report.reports[0].missing.includes('MEMORY_MEM0_API_KEY'));
});

test('runMemoryV2ConfigGapCli emits export template in shell mode', async () => {
  const stdout = writableBuffer();
  const code = await runMemoryV2ConfigGapCli({
    argv: ['--backend', 'qdrant', '--format', 'shell'],
    env: {},
    stdout,
  });

  assert.equal(code, 1);
  assert.match(stdout.value(), /export MEMORY_BACKEND='qdrant'/);
  assert.match(stdout.value(), /export MEMORY_QDRANT_URL='http:\/\/127\.0\.0\.1:6333'/);
});