// # Frontend Route tests
// As it stands, these tests depend on the database, and as such are integration tests.
// Mocking out the models to not touch the DB would turn these into unit tests, and should probably be done in future,
// But then again testing real code, rather than mock code, might be more useful...

const should = require('should');
const path = require('path');
const fs = require('fs');

const supertest = require('supertest');
const testUtils = require('../utils');
const configUtils = require('../utils/configUtils');
const urlUtils = require('../utils/urlUtils');
const adminUtils = require('../utils/admin-utils');
const config = require('../../core/shared/config');
let request;

function assertCorrectHeaders(res) {
    should.not.exist(res.headers['x-cache-invalidate']);
    should.exist(res.headers.date);
}

describe('Admin Routing', function () {
    before(async function () {
        adminUtils.stubAdminFiles();

        await testUtils.startGhost();
        request = supertest.agent(config.get('url'));
    });

    describe('Assets', function () {
        it('should return 404 for unknown assets', async function () {
            await request.get('/ghost/assets/not-found.js')
                .expect('Cache-Control', testUtils.cacheRules.private)
                .expect(404)
                .expect(assertCorrectHeaders);
        });

        it('should retrieve built assets', async function () {
            await request.get('/ghost/assets/vendor.js')
                .expect('Cache-Control', testUtils.cacheRules.yearImmutable)
                .expect(200)
                .expect(assertCorrectHeaders);
        });
    });

    describe('Auth Frame', function () {
        before(function () {
            // ensure the admin-auth folder exists so serveStatic doesn't fall through
            adminUtils.stubAuthFrameFiles(configUtils.config.getContentPath('public'));
        });

        it('Renders 204 with no admin session cookie', async function () {
            await request
                .get('/ghost/auth-frame/')
                .set('Origin', config.get('url'))
                .expect(204)
                .expect('Cache-Control', 'public, max-age=0');
        });

        it('Renders static file with admin session cookie', async function () {
            await request
                .get('/ghost/auth-frame/')
                .set('Origin', config.get('url'))
                .set('Cookie', [
                    'ghost-admin-api-session=abc; Path=/; HttpOnly; Secure; SameSite=Strict'
                ])
                .expect(200);
        });
    });

    describe('Admin Redirects', function () {
        it('should redirect /GHOST/ to /ghost/', async function () {
            await request.get('/GHOST/')
                .expect('Location', '/ghost/')
                .expect(301)
                .expect(assertCorrectHeaders);
        });
    });

    // we'll use X-Forwarded-Proto: https to simulate an 'https://' request behind a proxy
    describe('Require HTTPS - redirect', function () {
        before(async function () {
            configUtils.set('url', 'https://localhost:2390');
            urlUtils.stubUrlUtilsFromConfig();

            await testUtils.startGhost();
            request = supertest.agent(config.get('server:host') + ':' + config.get('server:port'));
        });

        after(async function () {
            await urlUtils.restore();
            await configUtils.restore();
        });

        it('should redirect admin access over non-HTTPS', async function () {
            await request.get('/ghost/')
                .expect('Location', /^https:\/\/localhost:2390\/ghost\//)
                .expect(301)
                .expect(assertCorrectHeaders);
        });

        it('should allow admin access over HTTPS', async function () {
            await request.get('/ghost/')
                .set('X-Forwarded-Proto', 'https')
                .expect(200)
                .expect(assertCorrectHeaders);
        });
    });

    describe('built template', function () {
        beforeEach(function () {
            const configPaths = configUtils.config.get('paths');
            configPaths.adminAssets = path.resolve('test/utils/fixtures/admin-build');
            configUtils.set('paths', configPaths);
        });

        afterEach(async function () {
            await configUtils.restore();
        });

        it('serves assets in production', async function () {
            configUtils.set('env', 'production');

            const prodTemplate = fs.readFileSync(path.resolve('test/utils/fixtures/admin-build/index.html')).toString();

            const res = await request.get('/ghost/')
                .set('X-Forwarded-Proto', 'https')
                .expect(200);

            res.text.should.equal(prodTemplate);
        });

        it('serves assets when not in production', async function () {
            const devTemplate = fs.readFileSync(path.resolve('test/utils/fixtures/admin-build/index.html')).toString();

            const res = await request.get('/ghost/')
                .set('X-Forwarded-Proto', 'https')
                .expect(200);

            res.text.should.equal(devTemplate);
        });

        it('generates it\'s own ETag header from file contents', async function () {
            const res = await request.get('/ghost/')
                .set('X-Forwarded-Proto', 'https')
                .expect(200);

            should.exist(res.headers.etag);
            res.headers.etag.should.equal('8793333e8e91cde411b1336c58ec6ef3');
        });
    });
});
