From 60191fb66fd51a8dadaa5153c2c501bc42752578 Mon Sep 17 00:00:00 2001
From: Angel Wang <angel@angelcube.dev>
Date: Tue, 23 Jun 2026 01:56:56 -0600
Subject: [PATCH] fix(apply): fix Windows script

---
 src/apply/index.ts | 14 ++++++++++++--
 src/utils.ts       | 41 +++++++++++++++++++----------------------
 2 files changed, 31 insertions(+), 24 deletions(-)

diff --git a/src/apply/index.ts b/src/apply/index.ts
index 7f8275a..ef87e46 100644
--- a/src/apply/index.ts
+++ b/src/apply/index.ts
@@ -1,5 +1,14 @@
 import type { ImageAnalysisData } from "../analyze/analysis.ts"
-import { applyConfigPath, cachePath, chalkDebug, loadConfig, map, mapEaseOutExp, mapEaseOutQuint, windowsApplyScriptPath } from "../utils.ts"
+import {
+	applyConfigPath,
+	cachePath,
+	chalkDebug,
+	loadConfig,
+	map,
+	mapEaseOutExp,
+	mapEaseOutQuint,
+	windowsApplyScriptPath,
+} from "../utils.ts"
 import { type ApplicationConfig, defaultConfig, findMatchingImages, getOpenMeteoData } from "./application.ts"
 import * as SunCalc from "suncalc"
 import "zx/globals"
@@ -83,6 +92,7 @@ console.info(`Setting wallpaper...`)
 if (Deno.build.os != "windows") {
 	await $`eval ${config.applyWallpaperCommand.replace("%s", targetImage.path)}`
 } else {
-	await $`pwsh ${windowsApplyScriptPath}`
+	const command = new Deno.Command(`pwsh`, { args: [ windowsApplyScriptPath, targetImage.path ], stdout: "piped" } )
+	command.spawn()
 }
 console.info(`Success! Enjoy :)`)
diff --git a/src/utils.ts b/src/utils.ts
index 785ef4f..00b066f 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -39,29 +39,26 @@ export const windowsApplyScriptPath = path.fromFileUrl(`file:///${getConfigPath(
 
 if (!fs.statSync(windowsApplyScriptPath, { throwIfNoEntry: false })) {
 	// C# in TypeScript. who would've thought
-	// uiAction: SPI_SetDeskWallpaper = 0x0014 = 20
-	// uiParam: unused = 0
-	// pvParam: path to the image
-	// fWinIni: SPIF_SENDCHANGE (update user profile + broadcast setting change) = 0x02 = 2
-
 	const command = `
-		$imagePath = $args[0]
-		$code = @' 
-		using System.Runtime.InteropServices; 
-			namespace Win32 { 
-				public class Wallpaper { 
-					[DllImport("user32.dll", CharSet=CharSet.Auto)] 
-					static extern int SystemParametersInfoA(int uiAction, int uiParam, string pvParam, int fWinIni);
-					
-					public static void SetWallpaper(string imagePath){ 
-						SystemParametersInfo(20, 0, imagePath, 2);
-					}
-				}
-			}
-		'@
-
-		add-type $code 
-		[Win32.Wallpaper]::SetWallpaper($imagePath)
+$imagePath = $args[0]
+$setwallpapersrc = @"
+using System.Runtime.InteropServices;
+public class wallpaper {
+	public const int SetDesktopWallpaper = 20;
+	public const int UpdateIniFile = 0x01;
+	public const int SendWinIniChange = 0x02;
+
+	[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
+	private static extern int SystemParametersInfo (int uAction, int uParam, string lpvParam, int fuWinIni);
+
+	public static void SetWallpaper (string path) {
+		SystemParametersInfo(SetDesktopWallpaper, 0, path, UpdateIniFile | SendWinIniChange);
+	}
+}
+"@
+Add-Type -TypeDefinition $setwallpapersrc
+
+[wallpaper]::SetWallpaper("$imagePath")
 	`
 	await fs.writeFile(windowsApplyScriptPath, command)
 	console.info(`Wrote Windows wallpaper apply script at ${windowsApplyScriptPath}!`)
-- 
2.51.2