var CFClient = require('cloudflare');
var fs = require('fs');
var bodyParser = require('body-parser'); 
var express = require('express'); 
var config;

try {
    file = fs.readFileSync("./config.json"); 
}
catch(exception) {
    console.log(exception.toString()); 
}

if(file != null) {
    var json = JSON.parse(file); 

    config = {
        email: json.email, 
        key: json.key
    }; 
    
    handleDisconnect(); 
    
}

var client = new CFClient({
    email: config.email,
    key: config.key
}); 

var app = express();

app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(bodyParser.json());

function readFile(path, callback) {
    if (!path.match(/\.\./g)) {
        fs.readFile('./static/' + path, (err, data) => {
            if (err) {
                readFile("404.html", callback);
            }
            else {
                callback(data);
            }

        });
    }
    else {
        callback("Nope");
    }

}

app.get("/dns/api/list", function(request, response) { 
    console.log("listZones"); 
    
    client.browseZones().then(function(data){ 
        response.status(200).json(JSON.stringify(data)); 
    }); 
});

app.post("/dns/api/listDomains", function(request, response) {
    var zoneId = request.body.zoneId; 
    var page = request.body.page || 0; 
    var perPage = request.body.perPage || 20; 
    
    console.log("listDomains "+zoneId+", "+page+", "+perPage); 
    
    client.readZone(zoneId).then(function(zone) { 
        client.browseDNS(zone, {page: page, per_page: perPage}).then(function(domains) { 
            response.status(200).json(JSON.stringify(domains)); 
        }); 
    }); 
}); 

app.post("/dns/api/add", function(request, response) {
    var json = request.body.data; 
    var data = JSON.parse(json); 
    
    console.log(data); 
    
    client.readZone(data.zoneId).then(function(zone) { 
        var newRecord = CFClient.DNSRecord.create({
            zoneId: zone.id, 
            type: data.type, 
            name: data.name, 
            content: data.content, 
            ttl: data.ttl, 
            proxied: data.proxied
        }); 

        client.addDNS(newRecord).then(function(data) { 
            response.status(200).json(JSON.stringify(data)); 
        }, function(err) {
            console.log(err); 
            response.status(400).send(); 
        }); 
    }); 
});

app.post("/dns/api/edit", function(request, response) {
    var json = request.body.data; 
    var data = JSON.parse(json); 
    
    if(data.zoneId == null || data.id == null) {
        response.status(400).send(); 
        return; 
    }
    
    console.log(request.body); 
    var zoneId = data.zoneId; 
    var dnsId = data.id; 
    
    console.log("edit "+zoneId+" "+dnsId);
    
    if(zoneId == null || dnsId == null) {
        response.status(400).send(); 
        return; 
    }
    
    console.log(typeof(data.type));
    console.log(typeof(data.name));
    console.log(typeof(data.content));
    console.log(typeof(data.ttl));
    console.log(typeof(data.proxied));
    
    client.readZone(zoneId)
    .then(function(zone) {
        return client.readDNS(dnsId, zone); 
    }, function(err) { 
        console.log(err); 
        response.status(400).send(); 
        return; 
    })
    .then(function(dns) { 
        dns.type = data.type; 
        dns.name = data.name; 
        dns.content = data.content; 
        dns.ttl = data.ttl; 
        dns.proxied = data.proxied;
        
        return client.editDNS(dns); 
    }, function(err) { 
        console.log(err); 
        response.status(400).send(); 
        return; 
    })
    .then(function(dns) { 
        response.status(200).json(JSON.stringify(dns)); 
        return; 
    }, function(err) { 
        console.log(err); 
        response.status(400).send(); 
        return; 
    }); 
    
});

app.post("/dns/api/delete", function(request, response) { 
    console.log(request.body); 
    var zoneId = request.body.data.zoneId; 
    var dnsId = request.body.data.dnsId; 
    
    console.log("delete "+typeof(zoneId)+" "+typeof(dnsId));
    
    if(zoneId == null || dnsId == null) {
        response.status(400).send(); 
        return; 
    }
    
    client.readZone(zoneId).then(function(zone) {
        console.log("0"); 
        return client.readDNS(dnsId, zone).then(function(dns) { 
            console.log("1"); 
            return client.deleteDNS(dns); 
        }, function(err) {
            console.log(err); 
            console.log("2");
            response.status(400).send(); 
            return; 
        }).then(function(id) { 
            console.log("3");
            response.status(200).send(); 
            return; 
        }, function(err) { 
            console.log("4"); 
            console.log(err); 
            response.status(400).send(); 
            return; 
        }); 
    }, function(err) { 
        console.log(err); 
    }); 
}); 

app.get("/dns/", function(request, response) {
    readFile("index.html", function(data) {
        response.setHeader('content-type', 'text/html');
        response.end(data.toString());
    });
});

app.get("/dns/static/:filename", function(request, response) {
    readFile(request.params.filename, function(data) {
        var f = request.params.filename; 
        var end = f.split(".")[f.split(".").length-1];
        switch(end){
            case "css":
                response.setHeader('content-type', 'text/css');
                break;
            case "js": 
                response.setHeader('content-type', 'text/javascript');
                break;
        }
        response.end(data);
    });
});



app.port = 1338;
app.host = "127.0.0.1";

app.listen(1338, "127.0.0.1", 511, function() {

});