/**
 * Created by WORKER on 05-09-2015.
 */
var async = require("async");

var result = {};
var matches = [];

function done(err, doc) {
    console.log(doc);
    if (doc != null) {
        //console.dir(doc);
        matches.push(doc)
    } else {
        result._callback();
    }
}

function getNames(result, options) {
    var template = options.query.template;
    switch (template) {
        case 'whom':
            console.log('Getting ' + template + ' names');
            options.DB.NameClln.find({}, { _id: 1, name: 1 }).each(done);
            break;
        case 'checkin':
        case 'checkout':
            console.log('Getting ' + template + ' names');
            options.DB.PlaceClln.find({}, { _id: 1, name: 1 }).each(done);
            break;
        default:

    }
}

function matchNames(token, names) {
    //var names = [{_id: 0, name: "Neha Sharma"}, {_id: 0, name: "Neha Arora"}, {_id: 0, name: "Neha Bhagwat"}, {_id: 0, name: "Neha Om Prakash"}, {_id: 0, name: "Neha Upreti"}];
    var matches = [];

    for (var name in names) {
        var parts = names[name].name.split(" ");
        for (var index in parts) {
            var part = parts[index];
            if(token.length <= part.length) {
                var subpart = part.substring(0, token.length);
                if (subpart.toLowerCase() === token.toLowerCase()) {
                    matches.push(names[name]);
                    break;
                }
            }
        }
    }

    return matches;
}

/**
 * Build list of person name matching a given token.
 * @param  {Object} options Input parameters
 */
function getNamelist(options) {
    matches = [];

    var data = {
        list: []
    }

    var asyncTasks = [];
    if(options.query.token && options.query.token.length > 0) {
        asyncTasks.push(function (_callback) {
            result._callback = _callback;
            getNames(result, options);
        });
        asyncTasks.push(function (_callback) {
            matches = matchNames(options.query.token, matches);
            _callback();
        });
    }
    async.series(asyncTasks, function(){
        data.list = matches;
        for (var match in data.list) {
            console.log(data.list[match]);
        }
        options.res.json(data);
    });


}
module.exports = getNamelist;