@echo off
rem ===========================================================================
rem Derive the build directory of one build configuration.
rem
rem Internal helper, called by configure.bat / build.bat / clean.bat /
rem build_all.bat as:
rem   call config_paths.bat ^<PHASE_SCANNING^|MECHANICAL_SCANNING^> ^<Debug^|Release^> [AUTO^|ON^|OFF]
rem
rem Accepted aliases: X256_PS = PHASE_SCANNING, X256_MS = MECHANICAL_SCANNING.
rem
rem On success the following variables are exported into the caller scope:
rem   SCAN_MODE    PHASE_SCANNING / MECHANICAL_SCANNING
rem   SCAN_TAG     X256_PS / X256_MS
rem   BUILD_TYPE   Debug / Release
rem   RECORD_MODE  AUTO / ON / OFF
rem   REC_TAG      REC_AUTO / REC_OFF / REC_ON
rem   BUILD_DIR    build\<SCAN_TAG>\<BUILD_TYPE>\<REC_TAG>
rem
rem Exit code: 0 = ok, 1 = invalid configuration.
rem
rem Encoding: keep this file ASCII-only (see msvc_env.bat).
rem ===========================================================================
set "SCAN_MODE="
set "SCAN_TAG="
set "BUILD_TYPE="
set "RECORD_MODE="
set "REC_TAG="
set "BUILD_DIR="

if "%~1"=="" goto :usage
if "%~2"=="" goto :usage

if /i "%~1"=="PHASE_SCANNING"      set "SCAN_MODE=PHASE_SCANNING"
if /i "%~1"=="X256_PS"             set "SCAN_MODE=PHASE_SCANNING"
if /i "%~1"=="MECHANICAL_SCANNING" set "SCAN_MODE=MECHANICAL_SCANNING"
if /i "%~1"=="X256_MS"             set "SCAN_MODE=MECHANICAL_SCANNING"
if not defined SCAN_MODE (
    echo [ERROR] invalid scan mode: "%~1"
    echo         expected PHASE_SCANNING / X256_PS or MECHANICAL_SCANNING / X256_MS
    exit /b 1
)
if "%SCAN_MODE%"=="PHASE_SCANNING"      set "SCAN_TAG=X256_PS"
if "%SCAN_MODE%"=="MECHANICAL_SCANNING" set "SCAN_TAG=X256_MS"

if /i "%~2"=="Debug"   set "BUILD_TYPE=Debug"
if /i "%~2"=="Release" set "BUILD_TYPE=Release"
if not defined BUILD_TYPE (
    echo [ERROR] invalid build type: "%~2"
    echo         expected Debug or Release
    exit /b 1
)

if not "%~3"=="" set "RECORD_MODE=%~3"
if not defined RECORD_MODE set "RECORD_MODE=AUTO"
if /i "%RECORD_MODE%"=="AUTO" set "RECORD_MODE=AUTO"
if /i "%RECORD_MODE%"=="ON"   set "RECORD_MODE=ON"
if /i "%RECORD_MODE%"=="OFF"  set "RECORD_MODE=OFF"
if "%RECORD_MODE%"=="AUTO" set "REC_TAG=REC_AUTO"
if "%RECORD_MODE%"=="ON"   set "REC_TAG=REC_ON"
if "%RECORD_MODE%"=="OFF"  set "REC_TAG=REC_OFF"
if not defined REC_TAG (
    echo [ERROR] invalid record mode: "%~3"
    echo         expected AUTO or ON or OFF
    exit /b 1
)

set "BUILD_DIR=build\%SCAN_TAG%\%BUILD_TYPE%\%REC_TAG%"
exit /b 0

:usage
echo Usage: config_paths.bat ^<PHASE_SCANNING^|MECHANICAL_SCANNING^> ^<Debug^|Release^> [AUTO^|ON^|OFF^]
exit /b 1