@echo off
setlocal enabledelayedexpansion

:: CodexZH Windows setup script (ASCII only)
echo.
echo CodexZH Windows Setup
echo ======================
echo.

:: API Key: from environment or prompt
set "API_KEY=%CODEX_API_KEY%"
if "!API_KEY!"=="" set "API_KEY=%OPENAI_API_KEY%"

if "!API_KEY!"=="" (
    echo Please enter your API Key:
    set /p API_KEY="> "
)

:: Validate API Key
if "!API_KEY!"=="" goto :error_no_key

:: Config directory
set "codexDir=%USERPROFILE%\.codex"
echo Config dir: !codexDir!
echo.

:: Backup existing files
if exist "!codexDir!" (
    for /f "usebackq delims=" %%a in (`powershell -NoProfile -Command "[DateTime]::Now.ToString('yyyyMMdd_HHmmss')"`) do set TIMESTAMP=%%a

    if not defined TIMESTAMP (
        echo WARN: Failed to get timestamp, skipping backup.
        set "TIMESTAMP=manual"
    )

    if exist "!codexDir!\config.toml" (
        copy "!codexDir!\config.toml" "!codexDir!\config.toml.backup_!TIMESTAMP!" >nul 2>&1
    )

    if exist "!codexDir!\auth.json" (
        copy "!codexDir!\auth.json" "!codexDir!\auth.json.backup_!TIMESTAMP!" >nul 2>&1
    )
) else (
    mkdir "!codexDir!" 2>nul
    if !errorlevel! neq 0 (
        goto :error_mkdir
    )
)

:: Write config.toml
(
echo model_provider = "codexzh"
echo model = "gpt-5.2"
echo model_reasoning_effort = "high"
echo disable_response_storage = true
echo.
echo [model_providers.codexzh]
echo name = "codexzh"
echo base_url = "https://api.codexzh.com/v1"
echo wire_api = "responses"
echo requires_openai_auth = true
echo.
echo [features]
echo web_search_request = true

) > "!codexDir!\config.toml" 2>nul

if !errorlevel! neq 0 (
    goto :error_write_config
)

:: Write auth.json
(
echo {
	echo   "OPENAI_API_KEY": "!API_KEY!"
	echo }
) > "!codexDir!\auth.json" 2>nul

if !errorlevel! neq 0 (
    goto :error_write_auth
)

:: Hide sensitive file (best-effort)
attrib +h "!codexDir!\auth.json" >nul 2>&1

echo Completed. Files:
echo   - config.toml: !codexDir!\config.toml
echo   - auth.json:  !codexDir!\auth.json

exit /b 0

:error_no_key
echo ERROR: API Key not set.
echo Set environment variable CODEX_API_KEY or enter when prompted.
exit /b 1

:error_mkdir
echo ERROR: Cannot create directory !codexDir!
exit /b 1

:error_write_config
echo ERROR: Cannot write config.toml
exit /b 1

:error_write_auth
echo ERROR: Cannot write auth.json
exit /b 1