@echo off
setlocal EnableExtensions DisableDelayedExpansion

set "PROJECT_ROOT=%~dp0"
set "BACKEND_ROOT=%PROJECT_ROOT%backend-api"
set "LOCAL_TLS_DIR=%PROJECT_ROOT%.local\cmroubao-tls"
set "LOCAL_TLS_CERT=%LOCAL_TLS_DIR%\server.crt"
set "LOCAL_TLS_KEY=%LOCAL_TLS_DIR%\server.key"

if not defined CMROUBAO_HTTP_ADDR (
    if exist "%LOCAL_TLS_CERT%" if exist "%LOCAL_TLS_KEY%" (
        set "CMROUBAO_HTTP_ADDR=0.0.0.0:8080"
    )
)
if not defined CMROUBAO_TLS_CERT_FILE (
    if not defined CMROUBAO_TLS_KEY_FILE (
        if exist "%LOCAL_TLS_CERT%" if exist "%LOCAL_TLS_KEY%" (
            set "CMROUBAO_TLS_CERT_FILE=%LOCAL_TLS_CERT%"
            set "CMROUBAO_TLS_KEY_FILE=%LOCAL_TLS_KEY%"
        )
    )
)

if not "%~1"=="" if /i not "%~1"=="--migrate" (
    echo Usage: %~nx0 [--migrate]
    echo   --migrate  Apply pending database migrations before starting the API.
    exit /b 2
)

if not exist "%BACKEND_ROOT%\go.mod" (
    echo Missing backend project: "%BACKEND_ROOT%"
    exit /b 1
)

where go >nul 2>nul
if errorlevel 1 (
    echo Go 1.23.0 is required but was not found on PATH.
    exit /b 1
)

set "GOTOOLCHAIN=local"
set "CGO_ENABLED=1"
for /f "tokens=3" %%G in ('go version') do set "GO_VERSION=%%G"
if /i not "%GO_VERSION%"=="go1.23.0" (
    echo Go 1.23.0 is required. Current version: %GO_VERSION%
    exit /b 1
)

where gcc >nul 2>nul
if errorlevel 1 (
    echo GCC is required because the SQLite driver uses CGO.
    exit /b 1
)

pushd "%BACKEND_ROOT%"
if errorlevel 1 (
    echo Cannot enter backend directory: "%BACKEND_ROOT%"
    exit /b 1
)

if not exist "var" mkdir "var"
if errorlevel 1 goto :startup_failed
if not exist "var\assets" mkdir "var\assets"
if errorlevel 1 goto :startup_failed

if /i "%~1"=="--migrate" (
    echo Applying database migrations...
    go run ./cmd/migrate up
    if errorlevel 1 goto :startup_failed
)

if defined CMROUBAO_TLS_CERT_FILE (
    echo Starting cmroubao backend with TLS at %CMROUBAO_HTTP_ADDR%...
) else if defined CMROUBAO_HTTP_ADDR (
    echo Starting cmroubao backend with configured CMROUBAO_HTTP_ADDR...
) else (
    echo Starting cmroubao backend at 127.0.0.1:8080...
)
echo Press Ctrl+C to stop.
go run ./cmd/api
set "EXIT_CODE=%ERRORLEVEL%"
popd
exit /b %EXIT_CODE%

:startup_failed
set "EXIT_CODE=%ERRORLEVEL%"
if "%EXIT_CODE%"=="0" set "EXIT_CODE=1"
popd
exit /b %EXIT_CODE%