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191 lines
4.6 KiB
191 lines
4.6 KiB
/**
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* File which deals with adding and removing downloads from
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* the admin section of the website.
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*
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* @author Jeffery Russell 6-30-18
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*/
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//file IO
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const utils = require('../../utils/utils.js');
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//updates db
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const sql = require('../../utils/sql');
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//parses post data
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const qs = require('querystring');
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/**
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* Processes post requests from the addDownload form
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*
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* @param postData
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* @returns {*|Promise}
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*/
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const addDownloadPostData = function(postData)
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{
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return new Promise(function(resolve, reject)
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{
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const post = qs.parse(postData);
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if(post.add_download)
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{
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sql.addDownload(post.add_download_name, post.add_download_file)
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.then(function()
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{
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resolve("");
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}).catch(function(error)
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{
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reject(error);
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})
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}
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else
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{
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resolve("");
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}
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});
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};
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/**
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* Displays the addDownload form the the user
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*
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* @param postData
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* @returns {*|Promise}
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*/
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const addDownload = function(postData)
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{
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return new Promise(function(resolve, reject)
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{
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Promise.all([addDownloadPostData(postData),
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utils.include("./admin/downloads/addDownload.html")]).then(function(html)
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{
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resolve("<div class=\"col-md-6\">" + html.join('') + "</div>");
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}).catch(function(error)
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{
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reject(error);
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})
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});
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};
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/**
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* Handel form requests from the downloads table
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*
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* @param postData
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* @returns {*|Promise}
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*/
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const displayDownloadsPostData = function(postData)
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{
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return new Promise(function(resolve, reject)
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{
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const post = qs.parse(postData);
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if(post.delete_download)
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{
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sql.removeDownload(post.delete_download).then(function()
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{
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resolve(postData);
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}).catch(function(err)
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{
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reject(err);
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});
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}
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else
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{
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resolve(postData);
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}
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});
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};
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/**
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* Renders a single download row in the downloads table
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*
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* @param download
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* @returns {*|Promise}
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*/
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const renderDownloadRow = function(download)
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{
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return "<tr>" +
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"<td>" + download.name + "</td>" +
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"<td>" + download.file + "</td>" +
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"<td>" + download.download_count + "</td>" +
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"<td><form action=\"/admin\" method =\"post\" >\n" +
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" <input type=\"submit\" name=\"submit\" value=\"Delete\"\n" +
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" class=\"btn btn-secondary\"/>\n" +
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"<input type='hidden' name='delete_download' value='" +
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download.download_id + "'/>"+
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"</form></td>" +
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"</tr>";
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};
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/**
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* Displays all the download information in a table
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* @param postData
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* @returns {*|Promise}
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*/
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const displayDownloads = function(postData)
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{
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var html = "<div class=\"col-md-6\">";
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return new Promise(function(resolve, reject)
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{
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displayDownloadsPostData(postData).then(function()
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{
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html += "<div class='blogPost'>" +
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"<h1 class=\"text-center\">Downloads</h1>" +
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"<div class=\"\"><table class=\"table table-striped\">" +
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"<thead class=\"thead-dark\"><tr>" +
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"<td>Download Name</td><td>File</td>" +
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"<td>Download Count</td><td>Delete</td>" +
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"</tr></thead><tbody>";
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sql.getAllDownloads().then(function(downloads)
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{
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var downloadPromises = [];
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downloads.forEach(function(download)
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{
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downloadPromises.push(renderDownloadRow(download));
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});
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Promise.all(downloadPromises).then(function(htmls)
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{
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const htmlafter = "</tbody></table></div></div><br>" +
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"</div>";
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resolve(html + htmls.join('') + htmlafter);
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});
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}).catch(function(error)
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{
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reject(error);
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});
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});
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});
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};
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module.exports=
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{
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/**
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* Renders tha download section of the admin page
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*
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* @param postData
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* @returns {Promise}
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*/
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main: function(postData)
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{
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return new Promise(function(resolve, reject)
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{
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Promise.all([addDownload(postData),
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displayDownloads(postData)]).then(function(html)
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{
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resolve("<div class=\"row\">" + html.join('') + "</div>");
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}).catch(function(error)
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{
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console.log("error in add downloads.js");
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reject(error);
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});
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});
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}
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};
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