@echo off
setlocal enabledelayedexpansion

echo Starting fake user removal for actions...

REM Check if files were dragged onto the batch file
if "%~1"=="" (
	echo.
	echo Usage: Drag .blend files onto this batch file to remove fake users from actions.
	echo Output will be saved to the \output folder.
	echo.
	pause
	exit /b 1
)

REM Create output directory if it doesn't exist
if not exist "output" mkdir "output"

REM Initialize counters and tracking
set "processed=0"
set "crashed=0"
set "skipped=0"
set "deleted_similar=0"
set "threshold_percent=10"
set "updated_total=0"

REM Create a temporary Python script for processing
set "TEMP_SCRIPT=remove_action_fake_users_temp.py"
echo Creating Python script: !TEMP_SCRIPT!

(
echo import bpy
echo import os
echo import sys
echo.
echo # Create output directory if it doesn't exist
echo if not os.path.exists^("output"^):
echo 	os.makedirs^("output"^)
echo.
echo # Get command line arguments ^(the dragged files^)
echo blend_files = sys.argv[sys.argv.index^("--"^) + 1:] if "--" in sys.argv else []
echo.
echo print^("Found " + str^(len^(blend_files^)^) + " .blend files to process"^)
echo.
echo for blend_file in blend_files:
echo ^	if blend_file.lower^(^).endswith^(".blend"^):
echo ^		try:
echo ^			# Create output path in output folder
echo ^			filename = os.path.basename^(blend_file^)
echo ^			output_file = os.path.join^("output", filename^)
echo ^			# Check if output file already exists
echo ^			if os.path.exists^(output_file^):
echo ^				print^("SKIP_EXISTING:" + blend_file^)
echo ^				continue
echo ^			print^("PROCESSING:" + blend_file^)
echo ^			# Load the blend file
echo ^			bpy.ops.wm.open_mainfile^(filepath=blend_file^)
echo ^			# Remove fake users from all actions
echo ^			changed = 0
echo ^			for action in bpy.data.actions:
echo ^				if getattr^(action, "use_fake_user", False^):
echo ^					action.use_fake_user = False
echo ^					changed += 1
echo ^			print^("UPDATED:" + blend_file + ":" + str^(changed^)^)
echo ^			# Save to output folder
echo ^			bpy.ops.wm.save_mainfile^(filepath=output_file, compress=True^)
echo ^			print^("SUCCESS:" + blend_file + ":" + output_file^)
echo ^		except Exception as e:
echo ^			print^("CRASH:" + blend_file + ":" + str^(e^)^)
echo ^	else:
echo ^		print^("SKIP_NOT_BLEND:" + blend_file^)
echo.
echo print^("FAKE_USER_REMOVAL_COMPLETE"^)
echo bpy.ops.wm.quit_blender^(^)
) > "!TEMP_SCRIPT!"

REM Check if script was created successfully
if exist "!TEMP_SCRIPT!" (
	echo Script created successfully: !TEMP_SCRIPT!
) else (
	echo ERROR: Failed to create script file!
	pause
	exit /b 1
)

REM Run Blender to process the dragged files
echo Processing dragged .blend files...
echo Using script: !TEMP_SCRIPT!
del /f /q "blender_output.txt" 2>nul
blender --background --factory-startup --python "!TEMP_SCRIPT!" -- %* 2^>^&1 | powershell -NoProfile -Command "$input | Tee-Object -FilePath 'blender_output.txt'"

REM Clean up temporary script
echo Cleaning up temporary script...
del "!TEMP_SCRIPT!" 2>nul

REM Parse output and generate report
echo.
echo ========================================
echo ACTION FAKE USER REMOVAL REPORT
echo ========================================
echo.

REM Track updated counts per file during parse
for /f "tokens=1,2,3 delims=:" %%a in (blender_output.txt) do (
	if "%%a"=="SUCCESS" (
		set /a processed+=1
		echo [!processed!] SUCCESS: %%b
		echo     Saved to: %%c
		REM Compare sizes and delete if reduction < threshold
		for %%f in ("%%b") do set "original_size=%%~zf"
		for %%f in ("%%c") do set "compressed_size=%%~zf"
		set /a savings=original_size-compressed_size
		if !original_size! gtr 0 (set /a percent=(savings*100)/original_size) else (set percent=0)
		echo     Original: !original_size! bytes
		echo     Output:   !compressed_size! bytes
		echo     Reduction: !percent!%%
		if !percent! lss !threshold_percent! (
			del "%%c" 2>nul
			set /a deleted_similar+=1
			echo     Deleted: too similar to original
		)
		echo.
	) else if "%%a"=="CRASH" (
		set /a crashed+=1
		echo [!crashed!] CRASHED: %%b
		echo     Error: %%c
		echo.
	) else if "%%a"=="SKIP_EXISTING" (
		set /a skipped+=1
		echo [!skipped!] SKIPPED ^(already exists^): %%b
		echo.
	) else if "%%a"=="SKIP_NOT_BLEND" (
		set /a skipped+=1
		echo [!skipped!] SKIPPED ^(not .blend^): %%b
		echo.
	) else if "%%a"=="UPDATED" (
		REM Accumulate total updated actions
		for /f "delims= tokens=1" %%x in ("%%c") do set "updated_in_file=%%x"
		set /a updated_total+=updated_in_file
		echo     Updated actions: !updated_in_file!
	)
)

REM Clean up output file
del /f /q "blender_output.txt" 2>nul

echo ========================================
echo SUMMARY
echo ========================================
echo Processed: !processed! files
echo Crashed: !crashed! files
echo Skipped: !skipped! files
echo Deleted ^(too similar^): !deleted_similar! files
echo Total actions updated: !updated_total!
echo Total: %* files
echo ========================================
echo.
echo Done!
pause


