1 files changed, 373 insertions, 0 deletions

diff --git a/js/chats.js b/js/chats.js
new file mode 100644
index 0000000..73dc791
--- /dev/null
+++ b/js/chats.js
@@ -0,0 +1,373 @@
+const API_ENDPOINT = "https://gimb.tk/test.php";
+const DIRECTORY_URL = "/directory.json";
+// "Global" object for name directory
+var directory = null;
+var currentlyChattingWith = null; // msgid
+var sogovornik = null; // name
+var firstPageOfMessages = null; // so we can test if new messages ever arrive
+
+async function checkLogin() {
+    localforage.getItem("logged_in").then(function (value) {
+        // This code runs once the value has been loaded
+        // from the offline store.
+        if (value !== true) {
+            window.location.replace("/index.html");
+        }
+    }).catch(function (err) {
+        // This code runs if there were any errors
+        console.log(err);
+    });
+}
+function getKeyByValue(object, value) {
+  return Object.keys(object).find(key => object[key] === value);
+}
+// -----------HTML HELPERS-----------
+function htmlEncode(value) {
+    // Create a in-memory element, set its inner text (which is automatically encoded)
+    // Then grab the encoded contents back out. The element never exists on the DOM.
+    return $("<textarea/>").text(value).html();
+}
+
+function htmlDecode(value) {
+    return $("<textarea/>").html(value).text();
+}
+// ---------------------------------
+
+// Try to fetch name:id directory
+function loadDirectory() {
+    $.ajax({
+        url: DIRECTORY_URL,
+        crossDomain: true,
+
+        dataType: "json",
+        cache: false,
+        type: "GET",
+
+        success: (data) => {
+            // If we were able to retrieve it, update the saved directory
+            localforage.setItem("directory", data);
+            directory = data;
+            // Populate autocomplete
+            populateAutocomplete();
+        },
+
+        error: () => {
+            // Otherwise, try to retrieve stored directory
+            localforage.getItem("directory").then((stored_directory) => {
+                if (stored_directory === null) {
+                    // If unable, set directory to null (so other functions know that we don't have it)
+										UIAlert( D("nameDirectoryNotSet"), "loadDirectory(): stored_directory === null" );
+                    directory = null;
+                    // Disable send button
+                    document.getElementById("msg-send").disabled = true;
+                } else {
+                    directory = stored_directory;
+                    // Populate autocomplete
+                    populateAutocomplete();
+                }
+            });
+        }
+    });
+}
+
+function populateAutocomplete() {
+    let elems = document.querySelectorAll('.autocomplete-fullname');
+    // če se uporablja globalna var directory, ki je shranjena kot objekt (vedno shranjen kot reference), bo pri let x=y x le pointer na object y
+    // in se bo spremenil z spremembo "originala". spodnja stvar itak ni preveč efficent, loop čez vseh 7000 ljudi bi lahko delal težave...
+    // kakšen Object.keys bi bila boljša varianta ampak raje napišem tale komentar... idk, to se mi je zdelo uporabno ampak sedaj obžalujem
+    // samo guglal sem "copying an object js"
+    let autocomplete_entries = Object.assign({}, directory);
+    for (let variableKey in autocomplete_entries) {
+        autocomplete_entries[variableKey] = null;
+    }
+    M.Autocomplete.init(elems, {
+        data: autocomplete_entries,
+        onAutocomplete: validateName,
+        minLength: 0
+    });
+    if(window.location.hash.length > 1) {
+    	document.getElementById("full-name").value = decodeURIComponent(window.location.hash.substring(1));
+    } else {
+    	document.getElementById("full-name").value = getUrlParameter("m");
+    }
+    M.updateTextFields();
+    validateName();
+}
+
+// Function to toggle loading bar
+function setLoading(state) {
+    if (state) {
+        $("#loading-bar").removeClass("hidden");
+    } else {
+        $("#loading-bar").addClass("hidden");
+    }
+}
+async function sendMessage(recipient_number = null, body = null) {
+	if(recipient_number == null || recipient_number == undefined) {
+		recipient_number = directory[sogovornik];
+	}
+	if(body == null || body == undefined) {
+		body = document.getElementById("msg-body").value;
+	}
+	if(body.length > 180) {
+		throw new RangeError("sendMessage(): message is longer than 180 characters.");
+	}
+	let promises_to_run = [
+			localforage.getItem("username").then((value) => {
+					username = value;
+			}),
+			localforage.getItem("password").then((value) => {
+					password = value;
+			}),
+	];
+	setLoading(true);
+	Promise.all(promises_to_run).then(() => {
+		try {
+			let gsecInstance = new gsec();
+			gsecInstance.login(username, password).then( () => {
+				gsecInstance.sendMessage(recipient_number, "beziapp-ctlmsg-chat-"+body, "BežiApp chat: "+body).then( (value) => {
+					addMessage(0, body);
+					setLoading(false);
+				}).catch( (err) => {
+					gsecErrorHandlerUI(err);
+					setLoading(false);
+				});
+			});
+		} catch (err) {
+			gsecErrorHandlerUI(err);
+			setLoading(false);
+		}
+	});
+}
+function addMessage(whom, body, datePlacement = 0, messageDate = null) { // datePlacement: 0=append bubble to end, 1=append bubble to start.
+	if(whom == 0) {
+		var whos = "mine";
+	} else {
+		var whos = "yours";
+	}
+	var timestamp = Date.now();
+	if(messageDate instanceof Date) { timestamp = messageDate.getTime(); }
+	if(typeof messageDate == "number") { timestamp = messageDate; }
+	var chatarea = document.getElementsByClassName("chat")[0];
+	var alreadyMessages = chatarea.querySelectorAll(".message");
+	var textnode = document.createTextNode(body); 
+	var bubblenode = document.createElement("div");
+	bubblenode.setAttribute("data-date", timestamp);
+	bubblenode.appendChild(textnode);
+	if(chatarea.childElementCount == 0) {
+		bubblenode.className = "message last";
+		var messagesnest = document.createElement("div");
+		var istaoseba = false;
+	} else {
+		if(datePlacement == 0 || timestamp > Number(alreadyMessages[alreadyMessages.length - 1].getAttribute("data-date"))) {
+			datePlacement = 0;
+			console.log(alreadyMessages[0].getAttribute("data-date"));
+			bubblenode.className = "message last";
+			if(chatarea.children.item(chatarea.children.length - 1).classList.contains(whos)) { // ista oseba
+				var istaoseba = true;
+				var messagesnest = chatarea.children.item(chatarea.children.length - 1);
+				messagesnest.children.item(messagesnest.children.length - 1).classList.remove("last");
+			} else {
+				var istaoseba = false;
+				var messagesnest = document.createElement("div");
+			}
+		} else if (datePlacement == 1 || timestamp < Number(alreadyMessages[0].getAttribute("data-date"))) {
+			datePlacement = 1;
+			console.log(alreadyMessages[0].getAttribute("data-date"));
+			if(chatarea.children.item(0).classList.contains(whos)) { // ista oseba
+				bubblenode.className = "message";
+				var istaoseba = true;
+				var messagesnest = chatarea.children.item(0);
+			} else {
+				bubblenode.className = "message last";
+				var istaoseba = false;
+				var messagesnest = document.createElement("div");
+			}
+		} else { // auto place (slower, so 0 or 1 are options
+			console.log("if3");
+			for(var iter = 0; iter < alreadyMessages.length - 2; iter++) { // (-2 zato, ker potem iter+1 ne obstaja pri zadnjem elementu)
+				if (
+					Number(alreadyMessages[iter].getAttribute("data-date")) < timstamp
+					&& Number(alreadyMessages[iter+1].getAttribute("data-date")) > timestamp
+				) {
+					var zgornjiIsti = alreadyMessages[iter].parentElement.classList.contains(whos);
+					var spodnjiIsti = alreadyMessages[iter+1].parentElement.classList.contains(whos);
+					console.log([zgornjiIsti, spodnjiIsti]);
+					if(zgornjiIsti && spodnjiIsti) {
+						var messagesnest = alreadyMessages[iter].parentElement;
+						bubblenode.className = "message";
+						messagesnest.insertBefore(bubblenode, alreadyMessages[iter+1]);
+						return;
+					}
+					if(zgornjiIsti && !spodnjiIsti) {
+						var messagesnest = alreadyMessages[iter].parentElement;
+						bubblenode.className = "message last";
+						messagesnest.children.item(messagesnest.childElementCount - 1).classList.remove("last");
+						messagesnest.appendChild(bubblenode);
+						return;
+					}
+					if(!zgornjiIsti && spodnjiIsti) {
+						var messagesnest = alreadyMessages[iter+1].parentElement;
+						bubblenode.className = "message";
+						messagesnest.insertBefore(bubblenode, alreadyMessages[iter+1]);
+						return;
+					}
+					throw new RangeError("This should not happen!");
+				}
+			}
+			throw new RangeError("This should not happen!1");
+		}
+	}
+	// autodetect date is not present here anymore
+	messagesnest.className = whos+" messages";
+	if(datePlacement == 0) {
+		messagesnest.appendChild(bubblenode);
+	} else {
+		messagesnest.prepend(bubblenode);
+	}
+	if(!istaoseba) {
+		if(datePlacement == 0) {
+			chatarea.appendChild(messagesnest);
+		} else{
+			chatarea.prepend(messagesnest);
+		}
+	}
+}
+async function validateName() {
+	if (directory !== null) {
+		document.getElementById("full-name").disabled = false;
+		if ($("#full-name").val() in directory) {
+			$("#full-name").addClass("valid");
+			$("#full-name").removeClass("invalid");
+			document.getElementById("chat-recipient-select-btn").disabled = false;
+			document.getElementById("msg-body").disabled = false;
+		} else {
+			$("#full-name").addClass("invalid");
+			$("#full-name").removeClass("valid");
+			document.getElementById("chat-recipient-select-btn").disabled = true;
+			document.getElementById("msg-body").disabled = true;
+			document.getElementById("msg-body").value = "";
+		}
+	} else {
+		document.getElementById("chat-recipient-select-btn").disabled = true;
+		document.getElementById("full-name").value = D("nameDirectoryNotSet");
+		document.getElementById("full-name").disabled = true;
+		document.getElementById("msg-body").value = "";
+	}
+}
+
+async function clearMessages() {
+	var chatarea = document.getElementsByClassName("chat")[0];
+	chatarea.innerHTML = "";
+}
+
+function getUrlParameter(sParam) {
+	const url_params = new URLSearchParams(window.location.search);
+	const found_param = url_params.get(sParam);
+	return found_param;
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+	checkLogin();
+	loadDirectory();
+	updateSendButton();
+	var receivedmessages = null;
+	M.updateTextFields();
+	// Setup side menu
+	const menus = document.querySelectorAll(".side-menu");
+	M.Sidenav.init(menus, { edge: "right", draggable: true });
+	let elems = document.querySelectorAll('.modal');
+	let instances = M.Modal.init(elems, {});
+	// Setup side modal
+	const modals = document.querySelectorAll('.side-modal');
+	M.Sidenav.init(modals, { edge: 'left', draggable: false });
+	prepareAndStartFetchingMessages(); // just opens modal, as there is no recipient selected
+
+});
+
+async function updateSendButton() {
+	if(document.getElementById("msg-body").value.length == 0) {
+		document.getElementById("msg-send").disabled = true;
+	} else {
+		document.getElementById("msg-send").disabled = false;
+	}
+}
+
+async function setRecipient(name = null) {
+	if(name == null || name == false || name == undefined) {
+		name = document.getElementById("full-name").value;
+	} else if (typeof name != "number") {
+		throw new TypeError('Hello from setRecipient(): name can only be string or null!');
+	}
+
+	if(Object.keys(directory).includes(name)) {} else {
+		UIAlert(D("recipientNotInDirectory"));
+		throw new RangeError("Hello from setRecipient(): name is not in directory");
+	}
+	var modal = document.querySelectorAll('#directory-side-menu')[0];
+	var modalInstance = M.Sidenav.getInstance(modal);
+	modalInstance.close();
+	document.getElementsByClassName("msg-chattingWith")[0].innerHTML = name;
+	sogovornik = name;
+	currentlyChattingWith = directory[name];
+	document.getElementById("chat-mustSelectRecipient").hidden=true;
+	updateSendButton();
+	clearMessages(); // <-- do when recipient selected
+	prepareAndStartFetchingMessages(); // <-- same
+}
+
+async function prepareAndStartFetchingMessages() {
+	if(currentlyChattingWith === 0 || (currentlyChattingWith >= 1 && currentlyChattingWith < 69420)) {
+		document.getElementById("msg-body").disabled = false;
+		await clearMessages();
+		startFetchingMessages();
+	} else {
+		var modal = document.querySelectorAll('#directory-side-menu')[0];
+		var modalInstance = M.Sidenav.getInstance(modal);
+		modalInstance.open();
+	}
+}
+
+async function startFetchingMessages() {
+	let promises_to_run = [
+			localforage.getItem("username").then((value) => {
+					username = value;
+			}),
+			localforage.getItem("password").then((value) => {
+					password = value;
+			}),
+	];
+	setLoading(true);
+	await Promise.all(promises_to_run);
+	try {
+		let gsecInstance = new gsec();
+		await gsecInstance.login(username, password);
+		for (var category = 0; category <= 1; category++) {
+			let lastpage = await gsecInstance.fetchMessagesLastPageNumber(category);
+			startLoadingMessagesForCategory(gsecInstance, category, lastpage);
+		}
+	} catch (err) {
+		gsecErrorHandlerUI(err);
+		setLoading(false);
+	}
+}
+
+async function startLoadingMessagesForCategory(gsecInstance, category, lastpage) {
+	for(var page = 1; page <= lastpage; page++) {
+		var gsecMsgList = await gsecInstance.fetchMessagesList(category, page);
+		if(category == 0) {
+			whom = 1;
+		} else {
+			whom = 0;
+		}
+		renderMessages(gsecMsgList, whom, 1);
+	}
+}
+
+async function renderMessages(gsecMsgList, whom, order = 1) { // order: 1=newest>olest 0=oldest>newest 2=autodetect (todo-not implemented)
+	for(const message of gsecMsgList) { // whom: 0=me 1=you
+		if(message.subject.substring(0, 20) == "beziapp-ctlmsg-chat-") {
+			addMessage(whom, message.subject.substring(20), 2, message.date.getTime);
+		}
+	}
+}