import test from 'node:test';
import assert from 'node:assert/strict';
import {
  createWechatCursorExecutorAdminConfigService,
  isChannelAllowedByCursorPolicy,
  isUserAllowedByWechatCursorPolicy,
  isIntentAllowedByWechatCursorPolicy,
} from './wechat-cursor-executor-admin-config.mjs';
import {
  CURSOR_EXECUTOR_CHANNEL,
  resolveCursorChannelEligible,
  resolveWechatCursorExecutorEligible,
} from './wechat-cursor-executor-policy.mjs';

function createMemoryPool() {
  const rows = new Map();
  return {
    async query(sql, params = []) {
      const normalized = String(sql).replace(/\s+/g, ' ').trim();
      if (normalized.startsWith('CREATE TABLE')) return [[]];
      if (normalized.startsWith('INSERT INTO h5_wechat_cursor_executor_config')) {
        rows.set('global', {
          config_json: params[1],
          updated_by: params[2],
          updated_at: params[3],
        });
        return [{ affectedRows: 1 }];
      }
      if (normalized.startsWith('SELECT config_json')) {
        const row = rows.get('global');
        return [row ? [row] : []];
      }
      throw new Error(`Unexpected SQL: ${normalized}`);
    },
  };
}

test('default policy disables cursor channel for everyone', async () => {
  const service = createWechatCursorExecutorAdminConfigService(createMemoryPool());
  const policy = await service.getEffectivePolicy('user-1', { userId: 'user-1' });
  assert.equal(policy.enabled, false);
  assert.equal(policy.userAllowed, false);
  assert.deepEqual(policy.intentAllowlist, ['page.generate']);
});

test('allowlisted user can use cursor channel for page.generate only', async () => {
  const pool = createMemoryPool();
  const service = createWechatCursorExecutorAdminConfigService(pool);
  await service.updateAdminConfig({
    enabled: true,
    userAllowlist: ['john-uuid'],
    intentAllowlist: ['page.generate'],
  }, { updatedBy: 'admin-1' });

  const policy = await service.getEffectivePolicy('john-uuid', { userId: 'john-uuid' });
  assert.equal(policy.userAllowed, true);
  assert.equal(
    resolveWechatCursorExecutorEligible({
      user: { userId: 'john-uuid' },
      intentKind: 'page.generate',
      policy,
    }),
    true,
  );
  assert.equal(
    resolveWechatCursorExecutorEligible({
      user: { userId: 'john-uuid' },
      intentKind: 'chat.general',
      policy,
    }),
    false,
  );
  assert.equal(
    resolveWechatCursorExecutorEligible({
      user: { userId: 'other-user' },
      intentKind: 'page.generate',
      policy,
    }),
    false,
  );
});

test('isUserAllowedByWechatCursorPolicy matches username aliases', () => {
  const policy = { enabled: true, userAllowlist: ['john'] };
  assert.equal(
    isUserAllowedByWechatCursorPolicy({ userId: 'x', username: 'john' }, policy),
    true,
  );
  assert.equal(isUserAllowedByWechatCursorPolicy({ userId: 'x' }, policy), false);
});

test('isIntentAllowedByWechatCursorPolicy respects allowlist', () => {
  const policy = { intentAllowlist: ['page.generate'] };
  assert.equal(isIntentAllowedByWechatCursorPolicy('page.generate', policy), true);
  assert.equal(isIntentAllowedByWechatCursorPolicy('chat.general', policy), false);
});

test('H5 channel does not require intent allowlist', async () => {
  const pool = createMemoryPool();
  const service = createWechatCursorExecutorAdminConfigService(pool);
  await service.updateAdminConfig({
    enabled: true,
    userAllowlist: ['john-uuid'],
    channelAllowlist: ['h5', 'wechat_mp'],
  }, { updatedBy: 'admin-1' });
  const policy = await service.getEffectivePolicy('john-uuid', { userId: 'john-uuid' });
  assert.equal(
    resolveCursorChannelEligible({
      user: { userId: 'john-uuid' },
      channel: CURSOR_EXECUTOR_CHANNEL.H5,
      policy,
    }),
    true,
  );
});

test('H5 channel respects channelAllowlist', async () => {
  const pool = createMemoryPool();
  const service = createWechatCursorExecutorAdminConfigService(pool);
  await service.updateAdminConfig({
    enabled: true,
    userAllowlist: ['john-uuid'],
    channelAllowlist: ['wechat_mp'],
  }, { updatedBy: 'admin-1' });
  const policy = await service.getEffectivePolicy('john-uuid', { userId: 'john-uuid' });
  assert.equal(
    resolveCursorChannelEligible({
      user: { userId: 'john-uuid' },
      channel: CURSOR_EXECUTOR_CHANNEL.H5,
      policy,
    }),
    false,
  );
  assert.equal(
    resolveCursorChannelEligible({
      user: { userId: 'john-uuid' },
      channel: CURSOR_EXECUTOR_CHANNEL.WECHAT_MP,
      intentKind: 'page.generate',
      policy,
    }),
    true,
  );
});

test('isChannelAllowedByCursorPolicy defaults to both channels', () => {
  const policy = { channelAllowlist: ['h5', 'wechat_mp'] };
  assert.equal(isChannelAllowedByCursorPolicy('h5', policy), true);
  assert.equal(isChannelAllowedByCursorPolicy('wechat_mp', policy), true);
  assert.equal(isChannelAllowedByCursorPolicy('other', policy), false);
});