//--------------------------------------------------------------------------------------------
// Dependencies
//--------------------------------------------------------------------------------------------
var util        = require('util')
,request        = require('request')
,deep           = require('deep-diff')
,async          = require('async')
,co             = require('co')
,rp             = require('request-promise')
,fs             = require('fs');

//--------------------------------------------------------------------------------------------
// The git posthook will pass the branch.
//--------------------------------------------------------------------------------------------
var argv = require('minimist')(process.argv.slice(2));
var branch = argv.branch;

if(!branch) {
    branch = 'DEFAULT';
}

var DATADIRECTORY   = './data';
var INPUT_DIR       = DATADIRECTORY + '/' + branch;
var OUTPUT_DIR      = DATADIRECTORY + '/' + branch + '/results';
var INPUTFILE       = INPUT_DIR + '/DEFAULT.json';

var lsDiffJSON = require(INPUTFILE);

async.forEach(lsDiffJSON, function(task, callback) {
    var options1 = {
        url: task.left,
        json: true
    };
    var options2 = {
        url: task.right,
        json: true
    };

    co(function* () {
        var lhs;
        var rhs;
        var diffs;
        rp = require('request-promise')

        lhs = yield rp(options1);
        rhs = yield rp(options2)

        // do stuff after all requests
        var differences = deep.diff(lhs, rhs, function(path, key) {
            return task.ignoredProperties.indexOf(key) >= 0;
        });

        if(!differences || differences == 'undefined') {
            console.log("#---------------------------------------------------------------------");
            console.log("# " + task.name + " - pass");
            console.log("#---------------------------------------------------------------------");
            diffs = 0;
        } else {
            diffs = differences.length;
            console.log("#---------------------------------------------------------------------");
            console.log("# " + task.name + " - " + diffs + " DIFFERENCES");
            console.log("#---------------------------------------------------------------------");
            console.log("# LEFT: " + task.left);
            console.log("# RIGHT: " + task.right);
            if(diffs > 0) {
                var dir = './data/'+branch;
                if (!fs.existsSync(dir)){
                    fs.mkdirSync(dir);
                }
                var filename = "./data/"+branch+'/'+task.name+'.json';
                filename = filename.replace(' ','-');
                var stream = fs.createWriteStream(filename).write(JSON.stringify(differences));
                console.log("# Diff written to: " + filename);
            }
            console.log("#---------------------------------------------------------------------");
        }
    });
});