import * as Hapi from 'hapi';

import { OAuthHandler } from './handler';
import { Provider, registerProvider } from './provider';
import { name, version } from './info';

export interface PluginOptions {
    providers: Provider[];
    baseUrl?: string;
    handler?: OAuthHandler;
    requestConfig?: Hapi.RouteOptions;
    linkConfig?: Hapi.RouteOptions;
}

export const plugin: Hapi.Plugin<PluginOptions> = {
    name,
    version,
    async register(server, options) {
        if (!options.providers) {
            throw new Error('Providers array not supplied');
        }

        options.baseUrl = options.baseUrl || server.info.uri;
        options.handler = options.handler || new OAuthHandler();

        options.providers.forEach(provider => {
            registerProvider(server, options, provider);
        });
    },
};