/* eslint-disable complexity */
/* eslint-env mocha */
import 'babel-polyfill';
import assert from 'assert';

import s from 'underscore.string';

import { _getURL } from './getURL';

const testPaths = (o, _processPath) => {
	let processPath = _processPath;
	if (o._root_url_path_prefix !== '') {
		processPath = (path) => _processPath(o._root_url_path_prefix + path);
	}

	assert.equal(_getURL('', o), processPath(''));
	assert.equal(_getURL('/', o), processPath(''));
	assert.equal(_getURL('//', o), processPath(''));
	assert.equal(_getURL('///', o), processPath(''));
	assert.equal(_getURL('/channel', o), processPath('/channel'));
	assert.equal(_getURL('/channel/', o), processPath('/channel'));
	assert.equal(_getURL('/channel//', o), processPath('/channel'));
	assert.equal(_getURL('/channel/123', o), processPath('/channel/123'));
	assert.equal(_getURL('/channel/123/', o), processPath('/channel/123'));
	assert.equal(_getURL('/channel/123?id=456&name=test', o), processPath('/channel/123?id=456&name=test'));
	assert.equal(_getURL('/channel/123/?id=456&name=test', o), processPath('/channel/123?id=456&name=test'));
};

const getCloudUrl = (_site_url, path) => {
	path = s.ltrim(path, '/');
	const url = `https://go.rocket.chat/?host=${ encodeURIComponent(_site_url.replace(/https?:\/\//, '')) }&path=${ encodeURIComponent(path) }`;
	if (_site_url.includes('http://')) {
		return `${ url }&secure=no`;
	}
	return url;
};

const testCases = (options) => {
	const _site_url = s.rtrim(options._site_url, '/');

	if (!options.cloud) {
		if (options._cdn_prefix === '') {
			if (options.full && !options.cdn) {
				it('should return with host if full: true', () => {
					testPaths(options, (path) => _site_url + path);
				});
			}

			if (!options.full && options.cdn) {
				it('should return without cdn prefix if cdn: true', () => {
					testPaths(options, (path) => path);
				});
			}

			if (!options.full && !options.cdn) {
				it('should return without host by default', () => {
					testPaths(options, (path) => path);
				});
			}

			if (options.full && options.cdn) {
				it('should return with host if full: true and cdn: true', () => {
					testPaths(options, (path) => _site_url + path);
				});
			}
		} else {
			if (options.full && !options.cdn) {
				it('should return with host if full: true', () => {
					testPaths(options, (path) => _site_url + path);
				});
			}

			if (!options.full && options.cdn) {
				it('should return with cdn prefix if cdn: true', () => {
					testPaths(options, (path) => options._cdn_prefix + path);
				});
			}

			if (!options.full && !options.cdn) {
				it('should return without host by default', () => {
					testPaths(options, (path) => path);
				});
			}

			if (options.full && options.cdn) {
				it('should return with cdn prefix if full: true and cdn: true', () => {
					testPaths(options, (path) => options._cdn_prefix + path);
				});
			}
		}
	} else if (options._cdn_prefix === '') {
		if (options.full && !options.cdn && !options.cloud) {
			it('should return with host if full: true', () => {
				testPaths(options, (path) => _site_url + path);
			});
		}

		if (!options.full && options.cdn) {
			it('should return with cloud host if cdn: true', () => {
				testPaths(options, (path) => getCloudUrl(_site_url, path));
			});
		}

		if (!options.full && !options.cdn) {
			it('should return with cloud host if full: fase and cdn: false', () => {
				testPaths(options, (path) => getCloudUrl(_site_url, path));
			});
		}

		if (options.full && options.cdn && !options.cloud) {
			it('should return with host if full: true and cdn: true', () => {
				testPaths(options, (path) => _site_url + path);
			});
		}
	} else {
		if (options.full && !options.cdn && !options.cloud) {
			it('should return with host if full: true', () => {
				testPaths(options, (path) => _site_url + path);
			});
		}

		if (!options.full && options.cdn && !options.cloud) {
			it('should return with cdn prefix if cdn: true', () => {
				testPaths(options, (path) => options._cdn_prefix + path);
			});
		}

		if (!options.full && !options.cdn) {
			it('should return with cloud host if full: fase and cdn: false', () => {
				testPaths(options, (path) => getCloudUrl(_site_url, path));
			});
		}

		if (options.full && options.cdn && !options.cloud) {
			it('should return with host if full: true and cdn: true', () => {
				testPaths(options, (path) => options._cdn_prefix + path);
			});
		}
	}
};

const testOptions = (options) => {
	testCases({ ...options, cdn: false, full: false, cloud: false });
	testCases({ ...options, cdn: true, full: false, cloud: false });
	testCases({ ...options, cdn: false, full: true, cloud: false });
	testCases({ ...options, cdn: false, full: false, cloud: true });
	testCases({ ...options, cdn: true, full: true, cloud: false });
	testCases({ ...options, cdn: false, full: true, cloud: true });
	testCases({ ...options, cdn: true, full: false, cloud: true });
	testCases({ ...options, cdn: true, full: true, cloud: true });
};

describe('getURL', () => {
	describe('getURL with no CDN, no PREFIX for http://localhost:3000/', () => {
		testOptions({
			_cdn_prefix: '',
			_root_url_path_prefix: '',
			_site_url: 'http://localhost:3000/',
		});
	});

	describe('getURL with no CDN, no PREFIX for http://localhost:3000', () => {
		testOptions({
			_cdn_prefix: '',
			_root_url_path_prefix: '',
			_site_url: 'http://localhost:3000',
		});
	});

	describe('getURL with CDN, no PREFIX for http://localhost:3000/', () => {
		testOptions({
			_cdn_prefix: 'https://cdn.com',
			_root_url_path_prefix: '',
			_site_url: 'http://localhost:3000/',
		});
	});

	describe('getURL with CDN, PREFIX for http://localhost:3000/', () => {
		testOptions({
			_cdn_prefix: 'https://cdn.com',
			_root_url_path_prefix: 'sub',
			_site_url: 'http://localhost:3000/',
		});
	});

	describe('getURL with CDN, PREFIX for https://localhost:3000/', () => {
		testOptions({
			_cdn_prefix: 'https://cdn.com',
			_root_url_path_prefix: 'sub',
			_site_url: 'https://localhost:3000/',
		});
	});
});