dwyl/tudo

'use strict';

/**
 *    LablesCtrl
 *
 *    Create custom labels and add lables to existing issues.
 *
 *    CRUD operations --> https://developer.github.com/v3/issues/labels/#create-a-label
 *
 *                POST   /repos/:owner/:repo/labels
 *                GET    /repos/:owner/:repo/labels
 *                PATCH  /repos/:owner/:repo/labels/:name
*                DELETE /repos/:owner/:repo/labels/:name
 *
 *
 *    #addToIssue --> https://developer.github.com/v3/issues/labels/#add-labels-to-an-issue
 *
 *                POST   /repos/:owner/:repo/issues/:number/labels
 *                DELETE /repos/:owner/:repo/issues/:number/labels/:name
 */

var wreck = require('wreck');
var Joi   = require('joi');

/**
 *    Get authorization headers
 *
 */
function getHeaders () {

    return {
        'Authorization': 'token ' + process.env.GITHUB_KEY ,
        'User-Agent': "" //makes no sense at all
    }
}

/**
 *    Create request object for creating a label.
 *
 *    @param  {Object} - new label attributes i.e. {name: 'string', color: 'string'}
 *    @return {String} - stringify json object
 *
 */
function lableLink (lableObj) {

    return JSON.stringify({
        name:  lableObj.name,
        color: lableObj.color
    })
}

module.exports = {

    get: function (request, reply) {

        var opts = {
            headers: getHeaders()
        };

        wreck.request(
            'GET',
            'https://api.github.com/repos/dwyl/tudo/labels',
            opts,
            function (err, response, payload) {

                wreck.read(response, null, function (errRead, bodyRead) {

                    // console.log(JSON.parse(bodyRead.toString()));

                    return reply(JSON.parse(bodyRead.toString()));
                });
            }
        );
    },
    create: function (request, reply) {

        var schemaLabel = Joi.object().keys({
            name:  Joi.string().required(),
            color: Joi.string().required()
        });

        var resultValidation = Joi.validate(request.payload, schemaLabel);

        if (resultValidation.error) {
            return reply({error: resultValidation.error}).code(400);
        }

        var opts = {
            headers: getHeaders(),
            payload: lableLink(request.payload)
        };

        wreck.request(
            'POST',
            'https://api.github.com/repos/dwyl/tudo/labels',
            opts, 
            function (err, response) {

                wreck.read(response, null, function (errRead, bodyRead) {

                    // console.log(JSON.parse(bodyRead.toString()));

                    return reply(JSON.parse(bodyRead.toString()));
                });
            }
        );
    },
    update: function (request, reply) {

        var schemaLabel = Joi.object().keys({
            oldName: Joi.string().required(),
            name:    Joi.string().required(),
            color:   Joi.string().required()
        });

        var resultValidation = Joi.validate(request.payload, schemaLabel);

        if (resultValidation.error) {

            return reply({error: resultValidation.error}).code(400);
        }

        var opts = {
            headers: getHeaders(),
            payload: lableLink(request.payload)
        };

        wreck.request(
            'PATCH',
            'https://api.github.com/repos/dwyl/tudo/labels/' + request.payload.oldName,
            opts,
            function (err, response, payload) {

                wreck.read(response, null, function (errRead, bodyRead) {

                    // console.log(JSON.parse(bodyRead.toString()));

                    return reply(JSON.parse(bodyRead.toString()));
                });
            }
        );
    },
    remove: function (request, reply) {

        var opts = {
            headers: getHeaders()
        };

        wreck.request(
            'DELETE',
            'https://api.github.com/repos/dwyl/tudo/labels/' + request.params.name,
            opts,
            function (err, response) {

                wreck.read(response, null, function (errRead, bodyRead) {

                    // console.log(JSON.parse(bodyRead.toString()));

                    return reply(response);
                });
            }
        );
    }
};