/**
 * E2E Workflow Test: Login → Create Project → Create Drawing → Create Layer → Create Element → Update → Delete
 */
import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import type { FastifyInstance } from 'fastify';
import { SqliteAdapter } from '../src/database/SqliteAdapter.js';
import { createServer } from '../src/server.js';

describe('E2E: Full CAD Workflow', () => {
  let app: FastifyInstance;
  let db: SqliteAdapter;
  let authToken: string;
  let projectId: string;
  let drawingId: string;
  let layerId: string;
  let elementId: string;

  beforeAll(async () => {
    db = new SqliteAdapter(':memory:');
    await db.init();
    app = await createServer({ db, port: 0 });
    await app.ready();
  });

  afterAll(async () => {
    await app.close();
    db.close();
  });

  it('Step 1: Register a new user', async () => {
    const res = await app.inject({
      method: 'POST',
      url: '/api/auth/register',
      payload: { email: 'e2e@example.com', password: 'Password123!', name: 'E2E Tester' },
    });
    expect(res.statusCode).toBe(201);
    const body = JSON.parse(res.body);
    expect(body.session.token).toBeDefined();
    authToken = body.session.token;
  });

  it('Step 2: Get user profile', async () => {
    const res = await app.inject({
      method: 'GET',
      url: '/api/auth/me',
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(200);
    const body = JSON.parse(res.body);
    expect(body.email).toBe('e2e@example.com');
  });

  it('Step 3: Create a project', async () => {
    const res = await app.inject({
      method: 'POST',
      url: '/api/projects',
      headers: { authorization: `Bearer ${authToken}` },
      payload: { name: 'E2E Test Project', description: 'Full workflow test' },
    });
    expect(res.statusCode).toBe(201);
    const body = JSON.parse(res.body);
    expect(body.name).toBe('E2E Test Project');
    projectId = body.id;
  });

  it('Step 4: Create a drawing in the project', async () => {
    const res = await app.inject({
      method: 'POST',
      url: `/api/projects/${projectId}/drawings`,
      headers: { authorization: `Bearer ${authToken}` },
      payload: { name: 'Test Drawing' },
    });
    expect(res.statusCode).toBe(201);
    const body = JSON.parse(res.body);
    expect(body.name).toBe('Test Drawing');
    drawingId = body.id;
  });

  it('Step 5: Create a layer in the drawing', async () => {
    const res = await app.inject({
      method: 'POST',
      url: `/api/drawings/${drawingId}/layers`,
      headers: { authorization: `Bearer ${authToken}` },
      payload: { name: 'Test Layer', color: '#ff0000' },
    });
    expect(res.statusCode).toBe(201);
    const body = JSON.parse(res.body);
    expect(body.name).toBe('Test Layer');
    layerId = body.id;
  });

  it('Step 6: Create an element on the layer', async () => {
    const res = await app.inject({
      method: 'POST',
      url: `/api/drawings/${drawingId}/elements`,
      headers: { authorization: `Bearer ${authToken}` },
      payload: {
        layer_id: layerId,
        type: 'rect',
        x: 10, y: 20, width: 100, height: 50,
        properties_json: JSON.stringify({ stroke: '#0000ff', fill: '#cccccc' }),
      },
    });
    expect(res.statusCode).toBe(201);
    const body = JSON.parse(res.body);
    expect(body.type).toBe('rect');
    elementId = body.id;
  });

  it('Step 7: List elements in the drawing', async () => {
    const res = await app.inject({
      method: 'GET',
      url: `/api/drawings/${drawingId}/elements`,
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(200);
    const body = JSON.parse(res.body);
    expect(body.length).toBe(1);
    expect(body[0].id).toBe(elementId);
  });

  it('Step 8: Update the element', async () => {
    const res = await app.inject({
      method: 'PATCH',
      url: `/api/elements/${elementId}`,
      headers: { authorization: `Bearer ${authToken}` },
      payload: { x: 50, y: 60, width: 200, height: 100 },
    });
    expect(res.statusCode).toBe(200);
    const body = JSON.parse(res.body);
    expect(body.x).toBe(50);
    expect(body.width).toBe(200);
  });

  it('Step 9: Update the layer visibility', async () => {
    const res = await app.inject({
      method: 'PATCH',
      url: `/api/layers/${layerId}`,
      headers: { authorization: `Bearer ${authToken}` },
      payload: { visible: 0 },
    });
    expect(res.statusCode).toBe(200);
    const body = JSON.parse(res.body);
    expect(body.visible).toBe(0);
  });

  it('Step 10: Delete the element', async () => {
    const res = await app.inject({
      method: 'DELETE',
      url: `/api/elements/${elementId}`,
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(204);
  });

  it('Step 11: Verify element is deleted', async () => {
    const res = await app.inject({
      method: 'GET',
      url: `/api/drawings/${drawingId}/elements`,
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(200);
    const body = JSON.parse(res.body);
    expect(body.length).toBe(0);
  });

  it('Step 12: Delete the drawing', async () => {
    const res = await app.inject({
      method: 'DELETE',
      url: `/api/drawings/${drawingId}`,
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(204);
  });

  it('Step 13: Delete the project', async () => {
    const res = await app.inject({
      method: 'DELETE',
      url: `/api/projects/${projectId}`,
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(204);
  });

  it('Step 14: Logout', async () => {
    const res = await app.inject({
      method: 'POST',
      url: '/api/auth/logout',
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(204);
  });

  it('Step 15: Verify token is invalid after logout', async () => {
    const res = await app.inject({
      method: 'GET',
      url: '/api/auth/me',
      headers: { authorization: `Bearer ${authToken}` },
    });
    expect(res.statusCode).toBe(401);
  });
});