feat: implement dynamic configuration loading for server and WebSocket URLs

webbridge.lua

@@ -3,13 +3,38 @@
 -- Forwards turtle modem messages to server and server commands to turtles.
 -- Falls back to HTTP polling if WebSocket is unavailable.
 
-local SERVER_URL = "http://beta:4200"
+local _baseDir = fs.getDir(shell.getRunningProgram())
-local WS_URL = "ws://beta:4200/ws/bridge"
+local function _path(rel) return fs.combine(_baseDir, rel) end
+
+-- Default config (overridable via .webbridge_config)
+local SERVER_URL = "http://localhost:4200"
+local WS_URL = "ws://localhost:4200/ws/bridge"
 local CHANNEL_RECEIVE = 101
 local STATUS_CHANNEL = 102
 local COMMAND_CHANNEL = 100
 local POCKET_CHANNEL = 103
 
+-- Load config from file if present
+local CONFIG_FILE = _path(".webbridge_config")
+if fs.exists(CONFIG_FILE) then
+    local f = fs.open(CONFIG_FILE, "r")
+    local data = f.readAll()
+    f.close()
+    local ok, cfg = pcall(textutils.unserialiseJSON, data)
+    if ok and cfg then
+        if cfg.serverUrl then
+            SERVER_URL = cfg.serverUrl
+            WS_URL = cfg.serverUrl:gsub("^http", "ws") .. "/ws/bridge"
+        end
+        if cfg.wsUrl           then WS_URL           = cfg.wsUrl           end
+        if cfg.channelReceive  then CHANNEL_RECEIVE  = cfg.channelReceive  end
+        if cfg.statusChannel   then STATUS_CHANNEL   = cfg.statusChannel   end
+        if cfg.commandChannel  then COMMAND_CHANNEL  = cfg.commandChannel  end
+        if cfg.pocketChannel   then POCKET_CHANNEL   = cfg.pocketChannel   end
+        print("[CONFIG] Loaded from " .. CONFIG_FILE)
+    end
+end
+
 -- Find peripherals
 local modem = peripheral.find("modem")
 local monitor = peripheral.find("monitor")