fix(installer/windows): remember service start type (#3902)

src_assets/windows/misc/service/install-service.bat

@@ -1,10 +1,13 @@
 @echo off
+setlocal enabledelayedexpansion
 
 rem Get sunshine root directory
 for %%I in ("%~dp0\..") do set "ROOT_DIR=%%~fI"
 
 set SERVICE_NAME=SunshineService
-set SERVICE_BIN="%ROOT_DIR%\tools\sunshinesvc.exe"
+set "SERVICE_BIN=%ROOT_DIR%\tools\sunshinesvc.exe"
+set "SERVICE_CONFIG_DIR=%LOCALAPPDATA%\LizardByte\Sunshine"
+set "SERVICE_CONFIG_FILE=%SERVICE_CONFIG_DIR%\service_start_type.txt"
 
 rem Set service to demand start. It will be changed to auto later if the user selected that option.
 set SERVICE_START_TYPE=demand
@@ -26,6 +29,34 @@ if %ERRORLEVEL%==0 (
     set SC_CMD=create
 )
 
+rem Check if we have a saved start type from previous installation
+if exist "%SERVICE_CONFIG_FILE%" (
+    rem Debug output file content
+    type "%SERVICE_CONFIG_FILE%"
+
+    rem Read the saved start type
+    for /f "usebackq delims=" %%a in ("%SERVICE_CONFIG_FILE%") do (
+        set "SAVED_START_TYPE=%%a"
+    )
+
+    echo Raw saved start type: [!SAVED_START_TYPE!]
+
+    rem Check start type
+    if "!SAVED_START_TYPE!"=="2-delayed" (
+        set SERVICE_START_TYPE=delayed-auto
+    ) else if "!SAVED_START_TYPE!"=="2" (
+        set SERVICE_START_TYPE=auto
+    ) else if "!SAVED_START_TYPE!"=="3" (
+        set SERVICE_START_TYPE=demand
+    ) else if "!SAVED_START_TYPE!"=="4" (
+        set SERVICE_START_TYPE=disabled
+    )
+
+    del "%SERVICE_CONFIG_FILE%"
+)
+
+echo Setting service start type set to: [!SERVICE_START_TYPE!]
+
 rem Run the sc command to create/reconfigure the service
 sc %SC_CMD% %SERVICE_NAME% binPath= %SERVICE_BIN% start= %SERVICE_START_TYPE% DisplayName= "Sunshine Service"