From ad4a4ea757cce61cde102be2aea2d07fe55aaa2c Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Fri, 25 Jun 2021 17:41:05 +0200
Subject: New and improved join page with server sent events.

---
 public/join.js   | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 public/style.css |   1 +
 2 files changed, 110 insertions(+)
 create mode 100644 public/join.js

(limited to 'public')

diff --git a/public/join.js b/public/join.js
new file mode 100644
index 0000000..96ca321
--- /dev/null
+++ b/public/join.js
@@ -0,0 +1,109 @@
+"use strict";
+
+let evtsrc = null;
+
+function confirm_delete(status) {
+	let warning = "Are you sure you want to DELETE this game?";
+	if (window.confirm(warning))
+		window.open("/delete/" + game.game_id);
+}
+
+function send(url) {
+	fetch(url)
+		.then(r => r.text())
+		.then(t => window.error.textContent = (t === "SUCCESS") ? "" : t)
+		.catch(e => window.error.textContent = e );
+	start_event_source();
+	return void 0;
+}
+
+function start_event_source() {
+	if (!evtsrc || evtsrc.readyState === 2) {
+		console.log("STARTING EVENT SOURCE");
+		evtsrc = new EventSource("/join-events/" + game.game_id);
+		evtsrc.addEventListener("players", function (evt) {
+			console.log("PLAYERS:", evt.data);
+			players = JSON.parse(evt.data);
+			update();
+		});
+		evtsrc.addEventListener("ready", function (evt) {
+			console.log("READY:", evt.data);
+			ready = JSON.parse(evt.data);
+			update();
+		});
+		evtsrc.addEventListener("game", function (evt) {
+			console.log("GAME:", evt.data);
+			game = JSON.parse(evt.data);
+			if (game.status > 1)
+				evtsrc.close();
+			update();
+		});
+		evtsrc.onerror = function (err) {
+			window.message.innerHTML = "Disconnected from server...";
+		};
+	}
+}
+
+function update() {
+	window.game_status.textContent = ["Open","Active","Finished","Abandoned"][game.status];
+	window.game_result.textContent = game.result || "\u2014";
+
+	for (let i = 0; i < roles.length; ++i) {
+		let role = roles[i];
+		let role_id = "role_" + role.replace(/ /g, "_");
+		if (game.random && game.status === 0)
+			role = "Random " + (i+1);
+		document.getElementById(role_id + "_name").textContent = role;
+		let player = players.find(p => p.role === role);
+		let element = document.getElementById(role_id);
+		if (player) {
+			if (game.status > 0) {
+				if (game.active === role || game.active === "Both" || game.active === "All")
+					element.className = "your_turn";
+				else
+					element.className = "";
+				if (player.user_id === user_id)
+					element.innerHTML = `<a href="/play/${game.game_id}/${role}">Play</a>`;
+				else
+					element.innerHTML = player.name;
+			} else {
+				if ((player.user_id === user_id) || (game.owner_id === user_id))
+					element.innerHTML = `<a class="red" href="javascript:send('/part/${game.game_id}/${role}')">\u274c</a> ${player.name}`;
+				else
+					element.innerHTML = player.name;
+			}
+		} else {
+			if (game.status === 0)
+				//element.innerHTML = `<a class="join" href="javascript:send('/join/${game.game_id}/${role}')">Join</a>`;
+				element.innerHTML = `<a class="join" onclick="send('/join/${game.game_id}/${role}')" href="javascript:void 0">Join</a>`;
+			else
+				element.innerHTML = "<i>Empty</i>";
+		}
+	}
+
+	let message = window.message;
+	if (game.status === 0) {
+		if (ready && (game.owner_id === user_id))
+			message.innerHTML = "Ready to start...";
+		else if (ready)
+			message.innerHTML = "Waiting for game to start...";
+		else
+			message.innerHTML = "Waiting for players to join...";
+	} else {
+		message.innerHTML = `<a class="play" href="/play/${game.game_id}/Observer">Observe</a>`;
+	}
+
+	if (game.owner_id === user_id) {
+		window.start_button.disabled = !ready;
+		window.start_button.classList = (game.status === 0) ? "" : "hide";
+		window.delete_button.classList = (game.status === 0 || solo) ? "" : "hide";
+	}
+}
+
+window.onload = function () {
+	update();
+	if (game.status < 2) {
+		start_event_source();
+		setInterval(start_event_source, 15000);
+	}
+}
diff --git a/public/style.css b/public/style.css
index 157661b..0503574 100644
--- a/public/style.css
+++ b/public/style.css
@@ -44,6 +44,7 @@ button, select {
 	margin: 5px 10px 5px 0;
 	padding: 1px 10px;
 	background-color: gainsboro;
+	vertical-align: top;
 }
 button:disabled {
 	color: gray;
-- 
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