import assert from 'node:assert/strict';
import type { AddressInfo } from 'node:net';
import test from 'node:test';
import express, { type ErrorRequestHandler } from 'express';
import { ZodError } from 'zod';
import { ApiError } from '../src/http/api-error.js';
import { createLocalDemoApp } from '../src/local-app.js';
import { LocalSyncJobStore } from '../src/modules/domestic-voc/local/local-sync-job.store.js';
import {
  createAuthenticationMiddleware,
  type RequestAuthenticator,
  WorkspaceAccessService,
} from '../src/modules/saas-platform/auth.js';
import { LocalPlatformRepository } from '../src/modules/saas-platform/local-platform.repository.js';
import { createSaasPlatformRouter } from '../src/modules/saas-platform/routes.js';
import type { DomesticDataset, DomesticMetricSummary, DomesticProduct } from '../src/types/domestic-dataset.js';

const emptyMetrics: DomesticMetricSummary = {
  gmv: 0,
  soldUnits: 0,
  transactionOrders: 0,
  transactionCustomers: 0,
  impressions: 0,
  clicks: 0,
  views: 0,
  visitors: 0,
  cartUnits: 0,
  orderAmount: 0,
  orderUnits: 0,
  orderCount: 0,
  refundAmount: 0,
  refundUnits: 0,
  refundOrders: 0,
  conversionRate: 0,
  clickThroughRate: 0,
  averageUnitPrice: 0,
  refundToGmvRate: 0,
};

function product(productId: string, role: DomesticProduct['role']): DomesticProduct {
  return {
    platform: 'jd',
    productId,
    productKey: `jd:${productId}`,
    asin: productId,
    role,
    brand: role === 'own' ? 'Demashi' : 'Competitor',
    title: `Product ${productId}`,
    model: `M-${productId}`,
    category1: 'Commercial appliance',
    category2: 'Kitchen equipment',
    category3: 'Oven',
    source: 'test',
    relationCount: role === 'own' ? 2 : 0,
    summary: emptyMetrics,
    trend: [],
  };
}

const dataset: DomesticDataset = {
  schemaVersion: 1,
  generatedAt: '2026-07-23T00:00:00.000Z',
  caseName: 'Demashi',
  platform: 'jd',
  source: {
    sourceFile: 'demashi-summary.json',
    sourceHash: 'test',
    sheets: [],
    dateRange: { start: '2026-07-01', end: '2026-07-23' },
  },
  summary: {
    metricRows: 0,
    metricProducts: 3,
    mappingRows: 2,
    relations: 2,
    uniqueCompetitorProducts: 2,
    category2Count: 1,
    category3Count: 1,
    reviewCount: 0,
  },
  dailyTotals: [],
  products: [product('1001', 'own'), product('1002', 'competitor'), product('1003', 'competitor')],
  mappingGroups: [],
  relations: [
    {
      relationKey: 'jd:1001:1002',
      ownProductKey: 'jd:1001',
      ownProductId: '1001',
      competitorProductKey: 'jd:1002',
      competitorProductId: '1002',
      competitorBrand: 'Competitor',
      category: 'Oven',
    },
    {
      relationKey: 'jd:1001:1003',
      ownProductKey: 'jd:1001',
      ownProductId: '1001',
      competitorProductKey: 'jd:1003',
      competitorProductId: '1003',
      competitorBrand: 'Competitor',
      category: 'Oven',
    },
  ],
  reviews: [],
  quality: { orphanMappings: [], mappingsWithoutCompetitor: [], brandWithoutProductId: [] },
};

async function listen(app: ReturnType<typeof express>) {
  const server = await new Promise<ReturnType<typeof app.listen>>((resolve) => {
    const listening = app.listen(0, '127.0.0.1', () => resolve(listening));
  });
  const address = server.address() as AddressInfo;
  return {
    baseUrl: `http://127.0.0.1:${address.port}`,
    close: () => new Promise<void>((resolve, reject) => server.close((error) => error ? reject(error) : resolve())),
  };
}

async function json(response: Response): Promise<Record<string, any>> {
  return await response.json() as Record<string, any>;
}

test('local SaaS APIs cover context, cursor catalogs, workflows, and audit history', async () => {
  const app = createLocalDemoApp({ dataset, corsOrigins: ['http://localhost:4200'] });
  const server = await listen(app);

  try {
    const contextResponse = await fetch(`${server.baseUrl}/api/saas/context`);
    assert.equal(contextResponse.status, 200);
    const context = await json(contextResponse);
    assert.equal(context.principal.userId, 'local-admin');
    assert.equal(context.workspaces[0].role, 'owner');

    const firstProductsResponse = await fetch(`${server.baseUrl}/api/domestic-voc/products?limit=2`);
    assert.equal(firstProductsResponse.status, 200);
    const firstProducts = await json(firstProductsResponse);
    assert.equal(firstProducts.items.length, 2);
    assert.equal(typeof firstProducts.nextCursor, 'string');

    const secondProductsResponse = await fetch(
      `${server.baseUrl}/api/domestic-voc/products?limit=2&cursor=${encodeURIComponent(firstProducts.nextCursor)}`,
    );
    assert.equal(secondProductsResponse.status, 200);
    const secondProducts = await json(secondProductsResponse);
    assert.equal(secondProducts.items.length, 1);
    assert.equal(secondProducts.nextCursor, null);

    const invalidCursor = await fetch(`${server.baseUrl}/api/domestic-voc/products?cursor=not-a-cursor`);
    assert.equal(invalidCursor.status, 400);
    assert.equal((await json(invalidCursor)).error, 'invalid_cursor');

    const firstRelations = await json(await fetch(`${server.baseUrl}/api/domestic-voc/relations?limit=1`));
    assert.equal(firstRelations.items.length, 1);
    assert.equal(typeof firstRelations.nextCursor, 'string');

    const memberResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/members/viewer-user`, {
      method: 'PUT',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        email: 'viewer@example.test',
        displayName: 'Viewer',
        role: 'viewer',
        status: 'active',
      }),
    });
    assert.equal(memberResponse.status, 200);
    assert.equal((await json(memberResponse)).member.role, 'viewer');

    const analysisResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/analyses`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ analysisType: 'voice', targetKind: 'workspace', input: { platform: 'jd' } }),
    });
    assert.equal(analysisResponse.status, 202);
    assert.equal((await json(analysisResponse)).analysis.status, 'pending');
    const analyses = await json(await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/analyses`));
    assert.equal(analyses.items.length, 1);

    const actionResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/actions`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ title: 'Verify review source', priority: 'high' }),
    });
    assert.equal(actionResponse.status, 201);
    const action = (await json(actionResponse)).action;
    const completedActionResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/actions/${action.id}`, {
      method: 'PATCH',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ status: 'completed' }),
    });
    assert.equal(completedActionResponse.status, 200);
    assert.equal((await json(completedActionResponse)).action.status, 'completed');
    const completedActions = await json(await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/actions?status=completed`));
    assert.equal(completedActions.items.length, 1);
    assert.equal(typeof completedActions.items[0].completedAt, 'string');

    const alertResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/alerts`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ title: 'Review evidence unavailable', alertType: 'data_quality', severity: 'high' }),
    });
    assert.equal(alertResponse.status, 201);
    const alert = (await json(alertResponse)).alert;
    const resolvedAlertResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/alerts/${alert.id}`, {
      method: 'PATCH',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ status: 'resolved' }),
    });
    assert.equal(resolvedAlertResponse.status, 200);
    assert.equal(typeof (await json(resolvedAlertResponse)).alert.resolvedAt, 'string');

    const syncResponse = await fetch(`${server.baseUrl}/api/domestic-voc/sync`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', 'Idempotency-Key': 'platform-audit-sync-1001' },
      body: JSON.stringify({ productIds: ['1001'] }),
    });
    assert.equal(syncResponse.status, 202);

    const auditResponse = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/audit?limit=100`);
    assert.equal(auditResponse.status, 200);
    const auditActions = (await json(auditResponse)).items.map((item: { action: string }) => item.action);
    assert.ok(auditActions.includes('member.upserted'));
    assert.ok(auditActions.includes('analysis.created'));
    assert.ok(auditActions.includes('action.updated'));
    assert.ok(auditActions.includes('alert.updated'));
    assert.ok(auditActions.includes('sync.requested'));
  } finally {
    await server.close();
  }
});

test('viewer membership can read but cannot call write or member-management routes', async () => {
  const jobs = new LocalSyncJobStore(dataset);
  const repository = new LocalPlatformRepository(dataset, jobs, {
    userId: 'local-admin',
    email: 'local-admin@localhost',
    displayName: 'Local Admin',
  });
  await repository.upsertMember({
    workspaceId: 'demashi',
    userId: 'viewer-user',
    email: 'viewer@example.test',
    displayName: 'Viewer',
    role: 'viewer',
    status: 'active',
  });

  const authenticator: RequestAuthenticator = {
    async authenticate(request) {
      const userId = request.header('X-Test-User') || 'local-admin';
      return { userId, email: `${userId}@example.test`, displayName: userId, authMode: 'disabled' };
    },
  };
  const app = express();
  app.use(express.json());
  app.use('/api', createAuthenticationMiddleware(authenticator));
  app.use('/api/saas', createSaasPlatformRouter({
    repository,
    access: new WorkspaceAccessService(repository),
  }));
  const errorHandler: ErrorRequestHandler = (error, _request, response, _next) => {
    if (error instanceof ApiError) {
      response.status(error.status).json({ error: error.code });
      return;
    }
    if (error instanceof ZodError) {
      response.status(400).json({ error: 'invalid_request' });
      return;
    }
    response.status(500).json({ error: 'internal_error' });
  };
  app.use(errorHandler);
  const server = await listen(app);
  const viewerHeaders = { 'Content-Type': 'application/json', 'X-Test-User': 'viewer-user' };

  try {
    const readable = await fetch(`${server.baseUrl}/api/saas/workspaces/demashi/actions`, { headers: viewerHeaders });
    assert.equal(readable.status, 200);

    const writes = [
      fetch(`${server.baseUrl}/api/saas/workspaces/demashi/analyses`, {
        method: 'POST', headers: viewerHeaders, body: JSON.stringify({ analysisType: 'voice' }),
      }),
      fetch(`${server.baseUrl}/api/saas/workspaces/demashi/actions`, {
        method: 'POST', headers: viewerHeaders, body: JSON.stringify({ title: 'Forbidden' }),
      }),
      fetch(`${server.baseUrl}/api/saas/workspaces/demashi/alerts`, {
        method: 'POST', headers: viewerHeaders, body: JSON.stringify({ title: 'Forbidden' }),
      }),
      fetch(`${server.baseUrl}/api/saas/workspaces/demashi/members/new-user`, {
        method: 'PUT', headers: viewerHeaders,
        body: JSON.stringify({ role: 'viewer', status: 'active' }),
      }),
    ];
    for (const response of await Promise.all(writes)) {
      assert.equal(response.status, 403);
      assert.equal((await json(response)).error, 'workspace_permission_denied');
    }
  } finally {
    await server.close();
  }
});