Add language settings in UI

.gitignore

@@ -2,3 +2,5 @@ node_modules
 rename.sh
 data-persistence.json
 log-journal.json
+config.json
+log-journal.json

helpers.js

@@ -29,4 +29,27 @@ function wrapBooleanConverter(stringBoolean, res) {
   }
 }
 
-module.exports = { convertStringBooleanToBoolean, wrapBooleanConverter };
+/**
+ * Tries to parse a string to a JSON object. Returns false if invalid. Taken from https://stackoverflow.com/a/20392392/11317151
+ * @param {String} jsonString A JSON String to parse
+ * @returns {Object/Boolean} JSON Object if valid or false otherwise
+ */
+function tryToParseJson(jsonString) {
+    try {
+        var o = JSON.parse(jsonString);
+
+        // Handle non-exception-throwing cases:
+        // Neither JSON.parse(false) or JSON.parse(1234) throw errors, hence the type-checking,
+        // but... JSON.parse(null) returns null, and typeof null === "object", 
+        // so we must check for that, too. Thankfully, null is falsey, so this suffices:
+        if (o && typeof o === "object") {
+            return o;
+        }
+    }
+    catch (e) { }
+
+    return false;
+}
+
+
+module.exports = { convertStringBooleanToBoolean, wrapBooleanConverter, tryToParseJson };

index.js

@@ -5,6 +5,7 @@ const ws = require('ws');
 const helper = require("./helpers.js");
 const loggy = require("./logging")
 const Eta = require("eta");
+const _ = require("underscore")
 
 loggy.init(true)
 
@@ -51,16 +52,34 @@ currentState = {
   srvTime: 0,
   enableColoredText: true,
   debug: false,
-  sessionToken: Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15),
+  sessionToken: Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15)
 };
 
-const dataToBeWritten = {};
+let configObject = {
+  language: "en_uk"
+}
+
+const tempJsonText = JSON.parse(fs.readFileSync("config.json", "utf8"));
+configObject = _.extend(configObject, tempJsonText);
+fs.writeFileSync("config.json", JSON.stringify(configObject));
 
 currentState = Object.assign({}, currentState, loadedData);
 currentState.textColors = currentState.colorSegments
 
+loggy.log("Searching for languages", "info", "Language")
+const languagesRaw = fs.readdirSync("./lang");
+const languages = [];
+for (let i = 0; i < languagesRaw.length; i++) {
+  if (languagesRaw[i].endsWith(".json")) {
+    languages.push(languagesRaw[i].replace(".json", ""));
+  }
+}
+loggy.log("Found " + languages.length + " languages", "info", "Language")
+
+
+
 loggy.log("Reading language file", "info", "Language")
-const languageProfile = JSON.parse(fs.readFileSync("lang/en_uk.json", "utf8"));
+let languageProfile = JSON.parse(fs.readFileSync("lang/" + configObject.language + ".json", "utf8"));
 
 loggy.log("Preparing websocket", "info", "Websocket");
 const wsServer = new ws.Server({ noServer: true });
@@ -95,11 +114,20 @@ app.get("/", function (req, res) {
   try {
     res.send(
       Eta.render(data, {
-        lang: languageProfile
+        lang: languageProfile,
+        additional: {
+          languages: languages
+        }
       }));
   } catch (e) {
-    const data = fs.readFileSync("templates/brokenTranslation.html", "utf8");
+    loggy.log("Error rendering template", "error", "Server");
-    res.send(data);
+    const dataN = fs.readFileSync("templates/brokenTranslation.html", "utf8");
+    res.send(
+      Eta.render(dataN, {
+        additional: {
+          languages: languages
+        }
+      }));
   }
 });
 
@@ -311,6 +339,48 @@ app.get("/api/v1/storage/delete", function (req, res) {
   updatedData()
 });
 
+// UI Routes
+// Returns an object containg all available languages
+app.get("/api/ui/v1/lang/list", function handleLangList(req, res){
+  const tempRespObject = {
+    status: "ok",
+    languages: languages
+  }
+  res.json(tempRespObject);
+})
+
+app.get("/api/ui/v1/lang/set", function (req, res) {
+  if(req.query.lang == undefined || req.query.lang == ""){
+    res.json({ status: "error", reason: "Missing language" });
+    return;
+  }
+  const testLang = req.query.lang;
+  loggy.log("Reloading language file", "info", "Language")
+  if(!fs.existsSync("lang/" + testLang + ".json")){
+    loggy.log("Language reload failed, file does not exist", "error", "Language")
+    res.status(500).json({ status: "error", reason: "Language file not found" });
+    return
+  }
+  const tempLang = fs.readFileSync("lang/" + testLang + ".json", "utf8");
+  const tempLangObj = helper.tryToParseJson(tempLang);
+  if(!tempLangObj){
+    loggy.log("Language reload failed, file is not valid", "error", "Language")
+    res.status(500).json({ status: "error", reason: "Language file is not valid" });
+    return
+  }
+  if(tempLangObj._metadata == undefined){
+    loggy.log("Language reload failed, file is not valid, metadata missing", "error", "Language")
+    res.status(500).json({ status: "error", reason: "Language file is not valid" });
+    return
+  }
+  loggy.log("Language reloaded, loaded " + tempLangObj._metadata.lang + "@" + tempLangObj._metadata.version, "info", "Language")
+  configObject.language = req.query.lang;
+  languageProfile = tempLangObj;
+  res.status(200).json({ status: "ok" });
+  fs.writeFileSync("config.json", JSON.stringify(configObject));
+});
+
+
 app.use(function (req, res, next) {
   res.status(404);
   loggy.log("Server responded with 404 error", "warn", "Server", true);

lang/de_de.json

@@ -21,7 +21,7 @@
         "messagingHint": "Zeigt eine Nachricht auf der Timeransicht an.",
         "copyHint": "Kopiert den Link zu der Countdown-Seite.",
         "openInNewTab": "Öffnet den Link in einem neuen Tab.",
-        "selectMode": "Wählt einen Modus für die Timeransicht.",
+        "selectMode": "Wählt einen Modus für die Timeransicht."
     },
     "placeholders": {
         "msgHere": "Message here"

lang/en_uk.json

@@ -6,7 +6,8 @@
         "messaging": "Messaging",
         "countdownToTime": "Countdown to time",
         "attention": "Attention",
-        "hostinfo": "Host information"
+        "hostinfo": "Host information",
+        "uiSettings": "UI settings"
     },
     "sidebar": {
         "home": "Home",
@@ -45,7 +46,9 @@
         "enableTextClrs": "Enable Text Colours:",
         "textClrs": "Text Colours",
         "addRow": "Add Row",
-        "timeVar": "Enable time variance display:"
+        "timeVar": "Enable time variance display:",
+        "language": "Select a language",
+        "apply": "Apply"
     },
     "untis": 
     {

log-journal.json

@@ -1 +1 @@
-[{"timestamp":"2022-05-10 19:38:52.853","level":"info","module":"Logging","message":"2022-05-10 19:38:52.853 [info]  [Logging] Logging initialized"},{"timestamp":"2022-05-10 19:38:52.854","level":"info","module":"Server","message":"2022-05-10 19:38:52.854 [info]  [Server] Preparing server"},{"timestamp":"2022-05-10 19:38:52.856","level":"info","module":"Server","message":"2022-05-10 19:38:52.856 [info]  [Server] Preparing static routes"},{"timestamp":"2022-05-10 19:38:52.857","level":"info","module":"Server","message":"2022-05-10 19:38:52.857 [info]  [Server] Preparing middlewares"},{"timestamp":"2022-05-10 19:38:52.857","level":"info","module":"Config","message":"2022-05-10 19:38:52.857 [info]  [Config] Loading config"},{"timestamp":"2022-05-10 19:38:52.857","level":"info","module":"Language","message":"2022-05-10 19:38:52.857 [info]  [Language] Reading language file"},{"timestamp":"2022-05-10 19:38:52.858","level":"info","module":"Websocket","message":"2022-05-10 19:38:52.858 [info]  [Websocket] Preparing websocket"},{"timestamp":"2022-05-10 19:38:52.858","level":"info","module":"Server","message":"2022-05-10 19:38:52.858 [info]  [Server] Preparing routes"},{"timestamp":"2022-05-10 19:38:52.859","level":"info","module":"Server","message":"2022-05-10 19:38:52.859 [info]  [Server] Starting server"},{"timestamp":"2022-05-10 19:48:56.465","level":"info","module":"Shutdown","message":"2022-05-10 19:48:56.465 [info]  [Shutdown] Caught interrupt signal and shutting down gracefully"}]
+[{"timestamp":"2022-05-12 18:53:40.121","level":"info","module":"Logging","message":"2022-05-12 18:53:40.121 [info]  [Logging] Logging initialized"},{"timestamp":"2022-05-12 18:53:40.122","level":"info","module":"Server","message":"2022-05-12 18:53:40.122 [info]  [Server] Preparing server"},{"timestamp":"2022-05-12 18:53:40.123","level":"info","module":"Server","message":"2022-05-12 18:53:40.123 [info]  [Server] Preparing static routes"},{"timestamp":"2022-05-12 18:53:40.125","level":"info","module":"Server","message":"2022-05-12 18:53:40.125 [info]  [Server] Preparing middlewares"},{"timestamp":"2022-05-12 18:53:40.125","level":"info","module":"Config","message":"2022-05-12 18:53:40.125 [info]  [Config] Loading config"},{"timestamp":"2022-05-12 18:53:40.127","level":"info","module":"Language","message":"2022-05-12 18:53:40.127 [info]  [Language] Searching for languages"},{"timestamp":"2022-05-12 18:53:40.127","level":"info","module":"Language","message":"2022-05-12 18:53:40.127 [info]  [Language] Found 3 languages"},{"timestamp":"2022-05-12 18:53:40.127","level":"info","module":"Language","message":"2022-05-12 18:53:40.127 [info]  [Language] Reading language file"},{"timestamp":"2022-05-12 18:53:40.128","level":"info","module":"Websocket","message":"2022-05-12 18:53:40.128 [info]  [Websocket] Preparing websocket"},{"timestamp":"2022-05-12 18:53:40.128","level":"info","module":"Server","message":"2022-05-12 18:53:40.128 [info]  [Server] Preparing routes"},{"timestamp":"2022-05-12 18:53:40.129","level":"info","module":"Server","message":"2022-05-12 18:53:40.129 [info]  [Server] Starting server"},{"timestamp":"2022-05-12 18:53:41.756","level":"error","module":"Server","message":"2022-05-12 18:53:41.756 [error]  [Server] Error rendering template"},{"timestamp":"2022-05-12 18:54:18.336","level":"error","module":"Server","message":"2022-05-12 18:54:18.336 [error]  [Server] Error rendering template"},{"timestamp":"2022-05-12 18:54:20.275","level":"info","module":"Shutdown","message":"2022-05-12 18:54:20.275 [info]  [Shutdown] Caught interrupt signal and shutting down gracefully"}]

package-lock.json

@@ -22,6 +22,7 @@
         "js-cookie": "^3.0.1",
         "less": "^3.13",
         "mdbootstrap": "^4.20.0",
+        "underscore": "^1.13.3",
         "ws": "^8.5.0"
       }
     },
@@ -706,6 +707,11 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/underscore": {
+      "version": "1.13.3",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.3.tgz",
+      "integrity": "sha512-QvjkYpiD+dJJraRA8+dGAU4i7aBbb2s0S3jA45TFOvg2VgqvdCDd/3N6CqA8gluk1W91GLoXg5enMUx560QzuA=="
+    },
     "node_modules/unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -1255,6 +1261,11 @@
         "mime-types": "~2.1.24"
       }
     },
+    "underscore": {
+      "version": "1.13.3",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.3.tgz",
+      "integrity": "sha512-QvjkYpiD+dJJraRA8+dGAU4i7aBbb2s0S3jA45TFOvg2VgqvdCDd/3N6CqA8gluk1W91GLoXg5enMUx560QzuA=="
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",

package.json

@@ -22,6 +22,7 @@
     "js-cookie": "^3.0.1",
     "less": "^3.13",
     "mdbootstrap": "^4.20.0",
+    "underscore": "^1.13.3",
     "ws": "^8.5.0"
   }
 }

static/css/styles.css

@@ -55,7 +55,7 @@ html, body {
 .progBar {
   appearance: none;
   height: 100%;
-  width: 80%;
+  width: 0%;
   border-radius: 0px;
   background-color: darkcyan;
 }

static/js/interface.js

@@ -50,6 +50,19 @@ $(function () {
         jsonview.expand(tree2);
     })
 
+    $("#applyLang").on("click", function (event) {
+        const lang = $("#lang").val()
+        saveOption("/api/ui/v1/lang/set?lang=" + lang, function handleLangSelect(event, xmlHttp) {
+            const temp = JSON.parse(xmlHttp.responseText)
+            if(temp.status == "error") {
+                alert("Request failed reason: " + temp.reason)
+            } else {
+                location.reload()
+            }
+            console.log(JSON.parse(xmlHttp.responseText))
+        })
+    })
+
     $("#addRow").on("click", function (event) {
         const tableEntryDom = document.getElementById("tableCopySource").cloneNode(true)
         let temp = tableEntryDom.innerHTML

templates/brokenTranslation.html

@@ -86,15 +86,28 @@
             <page id="homeP" class="pageC flex-fill overflow-auto">
 
                 <div class="container">
-                    <div class="" style=" display: flex;align-items: center;justify-content: center; flex-wrap: wrap; flex-direction: column;">
+                    <div class=""
+                        style=" display: flex;align-items: center;justify-content: center; flex-wrap: wrap; flex-direction: column;">
 
                         <h1>Oh no!</h1>
                         <h1>
                             <i class="bi bi-translate"></i>
                         </h1>
                         <h5>
-                                There is a critical error with the current language template. Please select a diffrent language.
+                            There is a critical error with the current language template. Please select a diffrent
+                            language.
                         </h5>
+                        <label for="lang">Please choose a language: </label>
+                        <select name="lang" id="lang">
+                            <% it.additional.languages.forEach(function(lang){ %>
+                                <option value="<%= lang %>">
+                                    <%= lang %>
+                                </option>
+                                <% }) %>
+                        </select>
+                        <button id="applyLang" class="btn btn-outline-success">
+                            Apply & Reload
+                        </button>
 
                     </div>
                 </div>
@@ -113,6 +126,19 @@
         $(function () {
             $('[data-toggle="tooltip"]').tooltip({ container: "body" })
         })
+        $("#applyLang").on("click", function (event) {
+            const lang = $("#lang").val()
+            saveOption("/api/ui/v1/lang/set?lang=" + lang, function handleLangSelect(event, xmlHttp) {
+                const temp = JSON.parse(xmlHttp.responseText)
+                if (temp.status == "error") {
+                    alert("Request failed reason: " + temp.reason)
+                } else {
+                    location.reload()
+                }
+                console.log(JSON.parse(xmlHttp.responseText))
+            })
+        })
+
     </script>
 
 </body>

templates/newAdminPanel.html

@@ -137,7 +137,7 @@
                         </div>
                         <div class="col">
                             <h3><%= it.lang.titles.mode %> <span class="helperTip" data-placement="right"
-                                    title=<%= it.lang.hints.selectMode %> data-toggle="tooltip">
+                                    title="<%= it.lang.hints.selectMode %>" data-toggle="tooltip">
                                     <i class="bi bi-question-circle-fill"></i>
                                 </span></h3>
                             <div class="btn-group" role="group" aria-label="Basic radio toggle button group">
@@ -311,8 +311,21 @@
                 <button type="button" class="btn btn-outline-success" id="saveLayout"><i class="bi bi-save"></i> Save as
                     startup settings (Layout
                     only)</button>
+
+                <hr>
+                <h2><%= it.lang.titles.uiSettings %></h2>
+                <label for="lang"><%= it.lang.labels.language %>:</label>
+                <select name="lang" id="lang">-
+                  <% it.additional.languages.forEach(function(lang){ %>
+                    <option value="<%= lang %>"><%= lang %></option>
+                  <% }) %>
+                </select>
+                <button id="applyLang" class="btn btn-outline-success">
+                    <%= it.lang.labels.apply %>
+                </button>
             </page>
 
+
             <page id="debug" class="pageC hidden flex-fill overflow-auto">
                 <h1>Debug page</h1>
                 <div class="alert alert-danger" role="alert">
@@ -343,7 +356,7 @@
                 <templateObj>
                     <table class="table table-bordered table-responsive-md table-striped text-center" id="colors1">
                         <thead>
-                            <tr>
+                            <tr><%= it.lang.labels.time %>
                                 <th class="text-center"><%= it.lang.labels.time %></th>
                                 <th class="text-center"><%= it.lang.labels.color %></th>
                                 <th class="text-center"><%= it.lang.labels.remove %></th>
@@ -370,9 +383,6 @@
                         </tr>
                         </tbody>
                     </table>
-
-
-
                     <tr>
                         <td class="pt-3-half numVal" contenteditable="true">#VALUE#</td>
                         <td class="pt-3-half full" contenteditable="false">