/**
 * Created by wuqun
 * on 2017/9/27.
 */
'use strict';
const co = require('co');
const proxy = require('koa-proxy');
const convert = require('koa-convert');
const request = require('superagent');
const realTimeVideoUrl = 'http://{address}/BACK_STREAM';
exports.entry = function (app, router, opts) {
    function* Exporting(ctx) {
        try {
            const searchParams = ctx.request.body; //字符串
            app.fs.logger.log('info', 'params:', searchParams);
            const data = yield fetchVideoPlayback(searchParams);
            ctx.status = 200;
            ctx.body = data;

        } catch (err) {
            app.fs.logger.log('error', 'get video playback error:', err);
            ctx.status = 400;
            ctx.body = err;
        }
    }

    function fetchVideoPlayback(searchParams) {
        return new Promise((resolve, reject) => {
            const objSearchParams = searchParams;
            const apiPath = realTimeVideoUrl.replace('{address}', objSearchParams.pushServerAddress);

            request
                .post(apiPath)
                .send(objSearchParams)
                .set('Content-Type', 'application/json')
                .end(function (err, res) {
                    if (err) {
                        app.fs.logger.log('error', '[video playback post error]', err);
                        reject(err);
                    } else {
                        app.fs.logger.log('debug', '[video playback post res.body]', res.body);
                        resolve(res.body);
                    }
                });
        });
    }
    router.post('/_video/playback', co.wrap(Exporting));
};