From b2f155c0b44c439e759fdf9f21dbab170e025d64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Feh=C3=A9r=20Roland?= <feherneoh@gmail.com>
Date: Thu, 9 Oct 2025 13:08:24 +0200
Subject: [PATCH] Use EventTarget

Getting torrent info from servers now uses Events
instead of magic callbacks.
---
 js/trdom_servermanager.js | 37 ++++++++++++++++++++++++++++++++++---
 js/trserver.js            | 15 ++++++++++++---
 js/trweb.js               | 14 +++++++++++++-
 3 files changed, 59 insertions(+), 7 deletions(-)

diff --git a/js/trdom_servermanager.js b/js/trdom_servermanager.js
index e2eddd6..b4bef39 100644
--- a/js/trdom_servermanager.js
+++ b/js/trdom_servermanager.js
@@ -1,6 +1,6 @@
 "use strict";
 
-class trdom_servermanager {
+class trdom_servermanager extends EventTarget {
 
     #logcb;
     #log(loglevel, msg) {
@@ -14,7 +14,12 @@ class trdom_servermanager {
         return this.#servers;
     }
 
-    #registerServer;
+    #registerServer = function(name, initdata) {
+        let server = new trserver(initdata, function(msg) {this.#logcb(`server:${name}`, 6, msg);}.bind(this));
+        this.#servers[name] = server;
+        server.addEventListener('torrent-update', this);
+        server.refreshTorrentList();
+    }
 
     #loadcb;
     #loadServers() {
@@ -49,12 +54,38 @@ class trdom_servermanager {
     }
 
     constructor (loadcb = null, savecb = null, logcb = null, registerServer = null) {
+        super();
         this.#loadcb = loadcb;
         this.#savecb = savecb;
         this.#logcb = logcb
 
-        this.#registerServer = registerServer;
+        //this.#registerServer = registerServer;
 
         //this.#servers = this.#loadServers();
     }
+
+    handleEvent(e) {
+        this.#log(6, `Handling event of type ${e.type}`);
+        switch (e.type) {
+        case 'torrent-update':
+            for (const [srv, server] of Object.entries(this.#servers)) {
+                if (e.target == server) {
+                    let newEvent = new CustomEvent('torrent-update', {
+                        'detail': {
+                            'torrentHash': e.detail.torrentHash,
+                            'torrentInfo': e.detail.torrentInfo,
+                            'serverName': srv
+                        }
+                    });
+                    this.dispatchEvent(newEvent);
+                    return;
+                }
+            }
+            this.#log(2, `Got update event for unknown server:\n${JSON.stringify(e.detail)}`);
+            break;
+        default:
+            this.#log(5, `Event type ${e.type} not supported`);
+            break;
+        }
+    }
 }
diff --git a/js/trserver.js b/js/trserver.js
index a6f6940..cd7e4b9 100644
--- a/js/trserver.js
+++ b/js/trserver.js
@@ -1,6 +1,6 @@
 "use strict";
 
-class trserver {
+class trserver extends EventTarget {
     #rpcurl;
     #authHeader;
     #sessionHeader;
@@ -9,9 +9,18 @@ class trserver {
     #isOnline = false;
 
     #logger = function(msg) {};
-    #torrentCallback = function(hash, torrentInfo) {};
+    #torrentCallback = function(hash, torrentInfo) {
+        let e = new CustomEvent('torrent-update', {
+            'detail': {
+                'torrentHash': hash,
+                'torrentInfo': torrentInfo
+            }
+        });
+        this.dispatchEvent(e);
+    };
 
-    constructor (initdata, logger, tcb) {
+    constructor (initdata, logger = null, tcb = null) {
+        super();
         this.#rpcurl = initdata.rpcurl;
         if (logger != null) {
             this.#logger = logger;
diff --git a/js/trweb.js b/js/trweb.js
index 7b02ef3..12260fe 100644
--- a/js/trweb.js
+++ b/js/trweb.js
@@ -34,7 +34,9 @@ class trweb {
             this.#logger = logger;
         }
 
-        this.#dom_servermanager = new trdom_servermanager(this.#loadcb, this.#savecb, this.#logcb, this.#registerServer)
+        this.#dom_servermanager = new trdom_servermanager(this.#loadcb, this.#savecb, this.#logcb, this.#registerServer);
+
+        this.#dom_servermanager.addEventListener('torrent-update', this);
 
         this.#guiFooter = document.createElement('div');
         this.#guiFooter.classList.add('trweb_footer');
@@ -182,6 +184,16 @@ class trweb {
                 this.#dom_servermanager.saveServers();
                 this.setTimer();
                 break;
+            case 'torrent-update':
+                let mergedTorrentInfo = this.#knownTorrents[e.detail.torrentHash];
+                if (mergedTorrentInfo == null) {
+                    mergedTorrentInfo = this.#createTorrentEntry(e.detail.torrentHash);
+                }
+                mergedTorrentInfo.setStatus(e.detail.serverName, e.detail.torrentInfo);
+                mergedTorrentInfo.name = e.detail.torrentInfo.name;
+
+                this.#updateTorrentDisplay(mergedTorrentInfo);
+                break;
         }
     }