methods.js

import $ from 'jquery';
import common from './common';
import api from './api';
import scripts from './scripts';

/*
This function returns the latest version of a package.
*/

function check_new_version(updates, packagename, pkgversion) {
    for (var i = 0; i < updates.length; i++) {
        var element = updates[i];
        if (element.name === packagename) {
            return element.version;
        }
    }
    return pkgversion;
}

/*
This function lists down all the updates and requires a user confirmation.
*/

function update_packages(project) {
    $('#updatebtn').unbind();
    $('#updatebtn').click(function () {
        if ($('#updatebtn').hasClass('fa-wrench')) {
            var selectedPackages = common.get_selected_packages();
            var html = $('<p> The following packages are about to be updated: </p> </br>');
            $('#updatebtn').toggleClass('fa-wrench fa-spinner').addClass('fa-spin');
            api.check_update(project, function (resp) {
                $('#updatebtn').toggleClass('fa-wrench fa-spinner').removeClass('fa-spin');
                var updates = resp.updates;
                var packages = [];

                if (selectedPackages.length > 0) {
                    html.append($('<ul/>'));

                    for (var i = 0; i < selectedPackages.length; i++) {
                        var element = selectedPackages[i];
                        element = element.split('=');
                        var pkg = element[0];
                        var ver = element[1];
                        var nver = check_new_version(updates, pkg, ver);
                        if (nver != ver) {
                            packages.push(pkg);
                            html.append("<li>" + pkg + " &nbsp; " + ver + " -> " + nver + "</li>");
                        }
                    }
                }
                else {
                    var list = $('.installed-values');
                    html.append($('<ul/>'));
                    for (var i = 0; i < list.length; i++) {
                        var element = list[i];
                        var pkg = $(element).find('.value-name')[0].innerText;
                        var ver = $(element).find('.value-version')[0].innerText;
                        var nver = check_new_version(updates, pkg, ver);
                        if (nver != ver) {
                            packages.push(pkg);
                            html.append("<li>" + pkg + " &nbsp; " + ver + " -> " + nver + "</li>");
                        }
                    }
                }
                if (packages.length === 0) {
                    html = $("<p> There are no updates available </p>");
                    common.display_msg("Update Packages", html);
                }
                else
                    common.confirm("Update Packages", html, "Confirm", function () {
                        $('#loadingtext').text("Updating Packages");
                        $('#loadingview').show();
                        api.update_packages(packages, project, function () {
                            $('#loadingview').hide();
                            scripts.package_view(project);
                        }, function () {
                            $('#loadingview').hide();
                            common.display_msg("Server Error", "The selected packages could not be updated. Please try again.");
                        });
                    });
            },
                function () {
                    common.display_msg("Server Error", "Error in checking for new updates. Please try again.");
                });
        }
    });
}


/*
This function lists down all the packages selected for removal and requires a user confirmation.
*/

function delete_packages(project) {
    $('#deletebtn').unbind();
    $('#deletebtn').click(function () {
        var selectedPackages = common.get_selected_packages();
        var html = $("<p> The following packages are about to be deleted: </p> </br>");
        html.append($('<ul/>'));
        var packages = [];
        for (var i = 0; i < selectedPackages.length; i++) {
            var element = selectedPackages[i];
            element = element.split('=')[0];
            packages.push(element);
            html.append("<li>" + element + "</li>");
        }
        common.confirm("Delete Packages", html, "Confirm", function () {
            $('#loadingtext').text("Removing Packages");
            $('#loadingview').show();
            api.delete_packages(packages, project, function () {
                $('#loadingview').hide();
                $('#deletebtn').css("display", "none");
                scripts.package_view(project);
            }, function () {
                $('#loadingview').hide();
                common.display_msg("Server Error", "The selected packages could not be removed. Please try again.");
            });
        });
    });
}


/*
This function lists down all the packages selected for installation and requires a user confirmation.
*/

function install_packages(project) {
    $('#installbtn').unbind();
    $('#installbtn').click(function () {
        var toInstall = common.get_to_install();
        var html = $("<p> The following packages are about to be added: </p> </br>");
        html.append($('<ul/>'));
        for (var i = 0; i < toInstall.length; i++) {
            var element = toInstall[i];
            element = element.split('=')[0];
            html.append("<li>" + element + "</li>");
        }
        common.confirm("Install Packages", html, "Confirm", function () {
            $('#loadingtext').text("Adding Packages");
            $('#loadingview').show();
            api.install_packages(toInstall, project, function () {
                $('#loadingview').hide();
                scripts.package_view(project);
            }, function () {
                $('#loadingview').hide();
                common.display_msg("Server Error", "The selected packages could not be installed. Please try again.");
            });
        });
    });
}

export default {
    update_packages: update_packages,
    delete_packages: delete_packages,
    install_packages: install_packages
}