@echo off
REM ============================================================
REM QGIS 子进程启动脚本（Windows）
REM 自动检测 QGIS 安装结构，支持 qgis-ltr/qgis + Python312/Python39
REM ============================================================

if "%QGIS_ROOT%"=="" goto :no_root
if not exist "%QGIS_ROOT%" goto :no_root_dir

REM --- 检测 QGIS 应用目录 ---
set "QGIS_APP=%QGIS_ROOT%\apps\qgis-ltr"
if not exist "%QGIS_APP%" set "QGIS_APP=%QGIS_ROOT%\apps\qgis"
if not exist "%QGIS_APP%" goto :no_qgis_app

REM --- 检测 Python 目录 ---
set "PY=%QGIS_ROOT%\apps\Python312"
if not exist "%PY%" set "PY=%QGIS_ROOT%\apps\Python39"
if not exist "%PY%" set "PY=%QGIS_ROOT%\apps\Python310"
if not exist "%PY%" set "PY=%QGIS_ROOT%\apps\Python311"
if not exist "%PY%" goto :no_python

REM --- 设置环境 ---
set "PYTHONHOME=%PY%"
set "PYTHONPATH=%QGIS_APP%\python"
set "QGIS_PREFIX_PATH=%QGIS_APP%"
set "QT_PLUGIN_PATH=%QGIS_APP%\qtplugins;%QGIS_ROOT%\apps\Qt5\plugins"
set "GDAL_DATA=%QGIS_ROOT%\apps\gdal\share\gdal"
set "PYTHONUTF8=1"
set "GDAL_FILENAME_IS_UTF8=YES"
set "VSI_CACHE=TRUE"
set "VSI_CACHE_SIZE=1000000"
set "PATH=%QGIS_APP%\bin;%QGIS_ROOT%\apps\Qt5\bin;%QGIS_ROOT%\apps\gdal\lib;%PATH%"

REM --- 启动 ---
"%PY%\python3.exe" %*
exit /b %ERRORLEVEL%

:no_root
echo [ERROR] QGIS_ROOT 环境变量未设置
exit /b 1

:no_root_dir
echo [ERROR] QGIS_ROOT 目录不存在: %QGIS_ROOT%
exit /b 1

:no_qgis_app
echo [ERROR] 未找到 QGIS 应用目录
exit /b 1

:no_python
echo [ERROR] 未找到 QGIS Python 目录
exit /b 1