import { Meteor } from 'meteor/meteor';
import { ServiceConfiguration } from 'meteor/service-configuration';
import _ from 'underscore';

import { CustomOAuth } from '../../../custom-oauth';
import { Logger } from '../../../logger';
import { settings } from '../../../settings';

const logger = new Logger('rocketchat:lib', {
	methods: {
		oauth_updated: {
			type: 'info',
		},
	},
});

function _OAuthServicesUpdate() {
	const services = settings.get(/^(Accounts_OAuth_|Accounts_OAuth_Custom-)[a-z0-9_]+$/i);
	services.forEach((service) => {
		logger.oauth_updated(service.key);
		let serviceName = service.key.replace('Accounts_OAuth_', '');
		if (serviceName === 'Meteor') {
			serviceName = 'meteor-developer';
		}
		if (/Accounts_OAuth_Custom-/.test(service.key)) {
			serviceName = service.key.replace('Accounts_OAuth_Custom-', '');
		}
		if (service.value === true) {
			const data = {
				clientId: settings.get(`${ service.key }_id`),
				secret: settings.get(`${ service.key }_secret`),
			};
			if (/Accounts_OAuth_Custom-/.test(service.key)) {
				data.custom = true;
				data.clientId = settings.get(`${ service.key }-id`);
				data.secret = settings.get(`${ service.key }-secret`);
				data.serverURL = settings.get(`${ service.key }-url`);
				data.tokenPath = settings.get(`${ service.key }-token_path`);
				data.identityPath = settings.get(`${ service.key }-identity_path`);
				data.authorizePath = settings.get(`${ service.key }-authorize_path`);
				data.scope = settings.get(`${ service.key }-scope`);
				data.accessTokenParam = settings.get(`${ service.key }-access_token_param`);
				data.buttonLabelText = settings.get(`${ service.key }-button_label_text`);
				data.buttonLabelColor = settings.get(`${ service.key }-button_label_color`);
				data.loginStyle = settings.get(`${ service.key }-login_style`);
				data.buttonColor = settings.get(`${ service.key }-button_color`);
				data.tokenSentVia = settings.get(`${ service.key }-token_sent_via`);
				data.identityTokenSentVia = settings.get(`${ service.key }-identity_token_sent_via`);
				data.usernameField = settings.get(`${ service.key }-username_field`);
				data.emailField = settings.get(`${ service.key }-email_field`);
				data.nameField = settings.get(`${ service.key }-name_field`);
				data.avatarField = settings.get(`${ service.key }-avatar_field`);
				data.rolesClaim = settings.get(`${ service.key }-roles_claim`);
				data.mergeUsers = settings.get(`${ service.key }-merge_users`);
				data.mergeRoles = settings.get(`${ service.key }-merge_roles`);
				data.showButton = settings.get(`${ service.key }-show_button`);
				new CustomOAuth(serviceName.toLowerCase(), {
					serverURL: data.serverURL,
					tokenPath: data.tokenPath,
					identityPath: data.identityPath,
					authorizePath: data.authorizePath,
					scope: data.scope,
					loginStyle: data.loginStyle,
					tokenSentVia: data.tokenSentVia,
					identityTokenSentVia: data.identityTokenSentVia,
					usernameField: data.usernameField,
					emailField: data.emailField,
					nameField: data.nameField,
					avatarField: data.avatarField,
					rolesClaim: data.rolesClaim,
					mergeUsers: data.mergeUsers,
					mergeRoles: data.mergeRoles,
					accessTokenParam: data.accessTokenParam,
					showButton: data.showButton,
				});
			}
			if (serviceName === 'Facebook') {
				data.appId = data.clientId;
				delete data.clientId;
			}
			if (serviceName === 'Twitter') {
				data.consumerKey = data.clientId;
				delete data.clientId;
			}

			if (serviceName === 'Linkedin') {
				data.clientConfig = {
					requestPermissions: ['r_liteprofile', 'r_emailaddress'],
				};
			}

			if (serviceName === 'Nextcloud') {
				data.buttonLabelText = settings.get('Accounts_OAuth_Nextcloud_button_label_text');
				data.buttonLabelColor = settings.get('Accounts_OAuth_Nextcloud_button_label_color');
				data.buttonColor = settings.get('Accounts_OAuth_Nextcloud_button_color');
			}

			// If there's no data other than the service name, then put the service name in the data object so the operation won't fail
			const keys = Object.keys(data).filter((key) => data[key] !== undefined);
			if (!keys.length) {
				data.service = serviceName.toLowerCase();
			}

			ServiceConfiguration.configurations.upsert({
				service: serviceName.toLowerCase(),
			}, {
				$set: data,
			});
		} else {
			ServiceConfiguration.configurations.remove({
				service: serviceName.toLowerCase(),
			});
		}
	});
}

const OAuthServicesUpdate = _.debounce(Meteor.bindEnvironment(_OAuthServicesUpdate), 2000);

function OAuthServicesRemove(_id) {
	const serviceName = _id.replace('Accounts_OAuth_Custom-', '');
	return ServiceConfiguration.configurations.remove({
		service: serviceName.toLowerCase(),
	});
}

settings.get(/^Accounts_OAuth_.+/, function() {
	return OAuthServicesUpdate(); // eslint-disable-line new-cap
});

settings.get(/^Accounts_OAuth_Custom-[a-z0-9_]+/, function(key, value) {
	if (!value) {
		return OAuthServicesRemove(key);// eslint-disable-line new-cap
	}
});