const test = require('node:test');
const assert = require('node:assert/strict');

require('../src/common');

const { createPageAuthToken } = require('../src/request-auth');
const { registerPlayerOnboardingRoutes } = require('../src/player/onboarding');

const originalSharedSecret = process.env.PULSE_SIGNAGE_SHARED_SECRET;
const originalFetch = global.fetch;

test.after(() => {
  if (originalSharedSecret === undefined) {
    delete process.env.PULSE_SIGNAGE_SHARED_SECRET;
  } else {
    process.env.PULSE_SIGNAGE_SHARED_SECRET = originalSharedSecret;
  }

  global.fetch = originalFetch;
});

function createAppAndHandlers() {
  const handlers = {};
  const app = {
    use() {},
    get(path, ...routeHandlers) {
      handlers[path] = function (req, res) {
        return new Promise((resolve, reject) => {
          const runHandler = (index) => {
            const handler = routeHandlers[index];
            if (!handler) {
              resolve();
              return;
            }

            let nextCalled = false;
            const next = function () {
              nextCalled = true;
              return runHandler(index + 1);
            };

            let result;
            try {
              result = handler(req, res, next);
            } catch (error) {
              reject(error);
              return;
            }

            Promise.resolve(result).then(function (value) {
              if (!nextCalled) {
                resolve(value);
              }
            }, reject);
          };

          runHandler(0);
        });
      };
    },
    post() {}
  };

  return { app, handlers };
}

function createResponse() {
  const headers = {};
  return {
    headers,
    statusCode: 200,
    body: null,
    set(name, value) {
      headers[name] = value;
      return this;
    },
    status(code) {
      this.statusCode = code;
      return this;
    },
    type(value) {
      headers['Content-Type'] = value;
      return this;
    },
    json(value) {
      this.body = value;
      return this;
    },
    send(value) {
      this.body = value;
      return this;
    }
  };
}

function registerThinClientRoutes(fetchImpl) {
  process.env.PULSE_SIGNAGE_SHARED_SECRET = 'bridge-secret';
  global.fetch = fetchImpl;

  const { app, handlers } = createAppAndHandlers();
  registerPlayerOnboardingRoutes(app, {
    app,
    common: {
      renderPlayerOnboardingLandingPage() {
        return 'landing';
      },
      renderPlayerOnboardingFormPage() {
        return 'form';
      }
    },
    thinClientBaseUrl: 'http://bridge.test',
    playerPublicBaseUrl: 'http://public.test'
  });

  return handlers;
}

test('remote onboarding status proxies to the bridge and rewrites playerUrl', async () => {
  const fetchCalls = [];
  const handlers = registerThinClientRoutes(async (url, init) => {
    fetchCalls.push({ url, init });
    return {
      status: 200,
      headers: {
        get(name) {
          return String(name || '').toLowerCase() === 'content-type' ? 'application/json; charset=utf-8' : null;
        }
      },
      async json() {
        return {
          deviceId: 'device123',
          onboarded: true,
          clientName: 'Lobby Player',
          screenId: 7,
          screenSlug: 'main-screen',
          screenName: 'Main Screen',
          playerUrl: null
        };
      }
    };
  });

  const token = createPageAuthToken({ scope: 'onboarding', deviceId: 'device123' });
  const res = createResponse();

  await handlers['/api/onboarding/status']({
    headers: {
      'x-pulse-page-auth': token
    },
    query: {
      deviceId: 'device 123!?'
    },
    socket: {}
  }, res);

  assert.equal(fetchCalls.length, 1);
  assert.equal(fetchCalls[0].url, 'http://bridge.test/api/onboarding/status?deviceId=device123');
  assert.equal(fetchCalls[0].init.method, 'GET');
  assert.equal(fetchCalls[0].init.headers['x-pulse-page-auth'], token);
  assert.equal(res.statusCode, 200);
  assert.equal(res.body.playerUrl, 'http://public.test/screen/main-screen');
  assert.equal(res.body.screenSlug, 'main-screen');
});

test('remote onboarding status returns 502 when the bridge is unavailable', async () => {
  const handlers = registerThinClientRoutes(async () => {
    return null;
  });

  const token = createPageAuthToken({ scope: 'player', deviceId: 'device123' });
  const res = createResponse();

  await handlers['/api/onboarding/status']({
    headers: {
      'x-pulse-page-auth': token
    },
    query: {
      deviceId: 'device123'
    },
    socket: {}
  }, res);

  assert.equal(res.statusCode, 502);
  assert.deepEqual(res.body, { error: 'Player bridge unavailable.' });
});

test('remote onboarding screens proxy preserves the bridge response body', async () => {
  const fetchCalls = [];
  const handlers = registerThinClientRoutes(async (url, init) => {
    fetchCalls.push({ url, init });
    return {
      status: 200,
      headers: {
        get(name) {
          return String(name || '').toLowerCase() === 'content-type' ? 'application/json; charset=utf-8' : null;
        }
      },
      async text() {
        return JSON.stringify({ screens: [{ id: 1, name: 'Lobby', slug: 'lobby' }] });
      }
    };
  });

  const token = createPageAuthToken({ scope: 'onboarding', deviceId: 'device123' });
  const res = createResponse();

  await handlers['/api/onboarding/screens']({
    headers: {
      'x-pulse-page-auth': token
    },
    query: {},
    socket: {}
  }, res);

  assert.equal(fetchCalls.length, 1);
  assert.equal(fetchCalls[0].url, 'http://bridge.test/api/onboarding/screens');
  assert.equal(fetchCalls[0].init.method, 'GET');
  assert.equal(res.statusCode, 200);
  assert.equal(res.headers['Content-Type'], 'application/json; charset=utf-8');
  assert.equal(res.body, JSON.stringify({ screens: [{ id: 1, name: 'Lobby', slug: 'lobby' }] }));
});