upd: make the mod tracker work in dev mode

this is an ugly hack but it's a ugly hack that works.

packages/frontend/@types/global.d.ts

@@ -16,3 +16,4 @@ declare const _DATA_TRANSFER_DECK_COLUMN_: string;
 
 // for dev-mode
 declare const _LANGS_FULL_: string[][];
+declare const __DIRNAME__: string;

packages/frontend/src/scripts/chiptune2.ts

@@ -233,7 +233,14 @@ export class ChiptuneJsPlayer {
 	async createLibopenmptNode(buffer: ArrayBuffer) {
 		if (!this.libopenmpt) {
 			const libopenmpt = await import('libopenmpt-wasm');
-			this.libopenmpt = await libopenmpt.default();
+			this.libopenmpt = await libopenmpt.default( _DEV_ ? {
+				// hack to make libopenmpt load in dev mode
+				locateFile(file) {
+					const url = new URL(window.location.href);
+					url.pathname = `/@fs/${__DIRNAME__}/node_modules/libopenmpt-wasm/${file}`;
+					return url.href;
+				},
+			} : {});
 		}
 
 		return new ChiptuneProcessorNode(this, buffer);

packages/frontend/vite.config.local-dev.ts

@@ -55,6 +55,7 @@ const devConfig = {
 	define: {
 		...defaultConfig.define,
 		_LANGS_FULL_: JSON.stringify(Object.entries(locales)),
+		__DIRNAME__: JSON.stringify(__dirname),
 	},
 };