var http = require('http');
var nsr = require('node-simple-router');
var router = nsr();

var config;
var httpServer;

function start(_config) {
    if (_config != undefined) {
        config = _config;
    }
    listenPort = config.globals.admin_port;
    
    router.get("/info", function(request, response) {
        response.setHeader("Content-Type", "text/plain");
        response.write('CHIPINFO / GATEWAY NAME: ' + config.globals.gateway_name + "\n");
        response.write('PRODUCTS: ' + config.globals.products + "\n");
        response.write('AAA HOST: ' + config.globals.aaa_host + "\n");
        response.write('PARTNER: ' + config.h2h_out.partner + "\n");
        response.write('PAUSED: ' + config.globals.pause + "\n");
        response.write('UPTIME: ' + process.uptime() + "\n");
        response.write('REQUESTS COUNT: ' + config.globals.requests_count + "\n");
        response.write('ACTIVE REQUESTS COUNT: ' + config.globals.active_requests_count + "\n");
        response.write('MAX ACTIVE REQUESTS COUNT: ' + config.globals.max_active_requests_count + "\n");
        
        response.end();
    });
    
    router.get("/pause/:apikey", function(request, response) {
        if (!config.globals.apikey) {
            response.end('Undefined APIKEY on config');
            return;
        }
        
        if (request.params.apikey != config.globals.apikey) {
            response.end('Invalid APIKEY');
            return;
        }
        
        config.globals.pause = 1;
        response.end('Paused');
    });
    
    router.get("/resume/:apikey", function(request, response) {
        if (!config.globals.apikey) {
            response.end('Undefined APIKEY on config');
            return;
        }
        
        if (request.params.apikey != config.globals.apikey) {
            response.end('Invalid APIKEY');
            return;
        }
        
        delete config.globals.pause;
        response.end('Resume');
    });
    
    router.get("/reset-stats/:apikey", function(request, response) {
        if (!config.globals.apikey) {
            response.end('Undefined APIKEY on config');
            return;
        }
        
        if (request.params.apikey != config.globals.apikey) {
            response.end('Invalid APIKEY');
            return;
        }
        
        config.globals.max_active_requests_count = 0;
        
        response.writeHead(307, {
          'Location': '/info'
        });
        
        response.end();
    });

    httpServer = http.createServer(router).listen(listenPort);
    console.log('HTTP server listens on port ' + listenPort);

    return httpServer;
}

function setConfig(_config) {
    config = _config;
}

exports.start = start;
exports.setConfig = setConfig;