crontab.js

/**
 * Copyright 2014 Bogdan Ghervan
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var CrontabService = function(alertService) {
    var self = this;
    var crontab = $('.table-crontab tbody');
    var jobToDelete;
    var addJobDialog = new AddJobDialog($('#job-add'), self, alertService);
    var editJobDialog;
    var lastEditedJobHash;
    var isTouchDevice = ('ontouchstart' in document.documentElement);
    
    this.runJob = function(job) {
        var hash = job.attr('data-hash');
        var runButton = $('.job-run', job);
        runButton.button('loading');
        
        $.ajax(baseUrl + '/job/run/' + hash).done(function(data) {
            alertService.pushSuccess(data.msg);
        }).fail(function(data) {
            alertService.pushError(data.responseJSON.msg);
        }).always(function() {
            runButton.button('reset');
        });

        return this;
    };
    
    this.editJob = function(job) {
        var hash = job.attr('data-hash');
        
        // Use existing dialog if editing the same job
        if (hash == lastEditedJobHash) {
            editJobDialog.open();
        
        // Fetch dialog for given job
        } else {
            // Remove previous dialog
            $('#job-edit').remove();

            $.ajax(baseUrl + '/job/edit-form/' + hash).done(function(data) {
                // Append dialog data
                $('body').append(data.html);

                // Init and open dialog
                editJobDialog = new AddJobDialog($('#job-edit'), self, alertService);
                editJobDialog.open();
                lastEditedJobHash = hash;
            }).fail(function() {
                alertService.pushError('Unable to edit the job at this time');
            });
        }
        
        return this;
    };
    
    // Appends newly added job to the cron table
    this.appendJob = function(content, hash) {
        crontab.append(content);
        $(document).trigger('jobAdd', {hash: hash});
        toggleCrontabGrid();
        
        return this;
    };
    
    // Refreshes edit job in the cron table
    this.updateJob = function(oldHash, newContent, newHash) {
        $('[data-hash="' + oldHash + '"]', crontab).replaceWith(newContent);
        $(document).trigger('jobEdit', {hash: newHash});
        
        return this;
    };
    
    this.pauseJob = function(job) {
        var hash = job.attr('data-hash');
        
        $.ajax(baseUrl + '/job/pause/' + hash).done(function(data) {
            alertService.pushSuccess(data.msg);
            
            var pauseMenuItem  = $('.menu-item-pause', job);
            var resumeMenuItem = $('.menu-item-resume', job);
        
            // Update with the new hash
            job.attr('data-hash', data.hash);
            
            // Refresh interface elements
            job.addClass('inactive');
            pauseMenuItem.addClass('hidden').removeClass('show');
            resumeMenuItem.addClass('show').removeClass('hidden');
        }).fail(function(data) {
            alertService.pushError(data.responseJSON.msg);
        });
        
        return this;
    };
    
    this.resumeJob = function(job) {
        var hash = job.attr('data-hash');
        
        $.ajax(baseUrl + '/job/resume/' + hash).done(function(data) {
            alertService.pushSuccess(data.msg);
            
            var pauseMenuItem  = $('.menu-item-pause', job);
            var resumeMenuItem = $('.menu-item-resume', job);
        
            // Update with the new hash
            job.attr('data-hash', data.hash);
            
            // Refresh interface elements
            job.removeClass('inactive');
            resumeMenuItem.addClass('hidden').removeClass('show');
            pauseMenuItem.addClass('show').removeClass('hidden');
        }).fail(function(data) {
            alertService.pushError(data.responseJSON.msg);
        });
        
        return this;
    };
    
    this.deleteJob = function(job) {
        var hash = job.attr('data-hash');
        
        $.ajax(baseUrl + '/job/delete/' + hash).done(function(data) {
            alertService.pushSuccess(data.msg);
            
            // Remove element from the DOM
            job.remove();
            toggleCrontabGrid();
        }).fail(function(data) {
            alertService.pushError(data.responseJSON.msg);
        });
        
        return this;
    };
    
    // Displays either the cron jobs table or the empty crontab notice
    var toggleCrontabGrid = function() {
        var jobCount = $('tr', crontab).size();
        if (jobCount) {
            $('.visible-full-crontab').removeClass('hidden');
            $('.visible-empty-crontab').addClass('hidden');
        } else {
            $('.visible-full-crontab').addClass('hidden');
            $('.visible-empty-crontab').removeClass('hidden');
        }
        
        return this;
    };
    
    // Prevent table rows' hover style on touch devices
    if (isTouchDevice) {
        $('.table-crontab').removeClass('table-hover');
    }
    
    // Assign handlers
    $('body').on('click', '.job-add', function() {
        // Prevent button from retaining focus once clicked
        $(this).blur();
        addJobDialog.open();
    });
    
    $('body').on('click', '.job-run', function() {
        var job = $(this).closest('tr');
        self.runJob(job);
        
        // Prevent button from retaining focus once clicked
        $(this).blur();
    });
    
    $('body').on('click', '.job-edit', function(e) {
        e.preventDefault();
        var job = $(this).closest('tr');
        self.editJob(job);
    });

    $('body').on('click', '.job-pause', function(e) {
        e.preventDefault();
        var job = $(this).closest('tr');
        self.pauseJob(job);
    });

    $('body').on('click', '.job-resume', function(e) {
        e.preventDefault();
        var job = $(this).closest('tr');
        self.resumeJob(job);
    });
    
    $('body').on('click', '.job-confirm-delete', function(e) {
        e.preventDefault();
        jobToDelete = $(this).closest('tr');
        $('#job-delete-confirmation').modal();
    });
    
    $('body').on('click', '.job-delete', function() {
        $('#job-delete-confirmation').modal('hide');
        self.deleteJob(jobToDelete);
    });
    
    // Enable tooltips now and in the future
    $(function() {
        $(".table-crontab [data-toggle='tooltip']").tooltip();
    });
    $(document).on('jobAdd jobEdit', function(event, data) {
        var job = $(".table-crontab [data-hash='" + data.hash + "']");
        $("[data-toggle='tooltip']", job).tooltip();
    });
};