gerard2p/koaton

/**
 * Middleware for eTag generation (cached content)
 * @param {Koa} koaton - Instance of a Koa server.
 * @return {Object}
 * @property {i18n} i18nHelper - Instace of the i18n helper.
 * @property {function(ctx: KoaContext, next: KoaNext)} i18nMiddleware - Appends i18n to the ctx.state
 */
export default function localization (koaton) {
    let config = Object.assign({}, {
        queryKey: 'locale',
        directory: 'locales',
        locales: ['en'],
        modes: [
            'query',
            'subdomain'
        ]
    }, configuration.server.localization);
    const locale = require('koa-locale');
    const i18n = require('koa-i18n');
    locale(koaton, config.queryKey);
    return {i18nHelper: i18n(koaton, config),
        i18nMiddleware: async function exporti18n (ctx, next) {
            global.i18n = ctx.i18n;
            await next();
        }};
}