@echo off
setlocal EnableExtensions EnableDelayedExpansion

REM ============================================================
REM Lobby Systems - Fabric Build Script
REM Windows
REM ============================================================

cd /d "%~dp0"

set "BUILD_ONLY=0"
if /I "%~1"=="--build-only" set "BUILD_ONLY=1"

set "GRADLE_PROPERTIES=%CD%\gradle.properties"
set "LOCAL_GRADLE_DIR=%CD%\.gradle-local"
set "GRADLE_VERSION=9.5.1"
set "GRADLE_HOME=%LOCAL_GRADLE_DIR%\gradle-%GRADLE_VERSION%"
set "GRADLE_BIN=%GRADLE_HOME%\bin\gradle.bat"
set "GIT_ONLY=0"

set "MOD_VERSION="
set "MINECRAFT_VERSION="
set "MAVEN_GROUP="

if not exist "%GRADLE_PROPERTIES%" (
    echo [ERROR] gradle.properties tidak ditemukan.
    goto :failed
)

for /f "usebackq tokens=1,* delims==" %%A in ("%GRADLE_PROPERTIES%") do (
    if "%%A"=="mod_version" set "MOD_VERSION=%%B"
    if "%%A"=="minecraft_version" set "MINECRAFT_VERSION=%%B"
    if "%%A"=="maven_group" set "MAVEN_GROUP=%%B"
)

if not defined MOD_VERSION set "MOD_VERSION=unknown"
if not defined MINECRAFT_VERSION set "MINECRAFT_VERSION=26.2"
if not defined MAVEN_GROUP set "MAVEN_GROUP=id.dartokloning"

set "JAR_PATH=%CD%\build\libs\lobby-systems-%MOD_VERSION%.jar"

echo ============================================
echo  Lobby Systems - Fabric %MINECRAFT_VERSION% Build
echo  Version: %MOD_VERSION%
echo  Namespace: id.dartokloning.lobbysystems
echo  Mod ID: dartokloning
echo ============================================

REM release.bat selalu melakukan build ulang melalui --build-only.
if "%BUILD_ONLY%"=="0" if exist "%JAR_PATH%" (
    echo.
    echo [INFO] JAR untuk v%MOD_VERSION% sudah pernah dibuild:
    echo        %JAR_PATH%
    echo.
    choice /C CG /N /M "[C] Compile ulang / [G] Git saja: "
    if errorlevel 2 (
        set "GIT_ONLY=1"
        goto :git_integration
    )
)

where java.exe >nul 2>&1
if errorlevel 1 (
    echo [ERROR] Java tidak ditemukan di PATH.
    echo Install JDK 25, buka terminal baru, lalu jalankan script lagi.
    goto :failed
)

for /f "delims=" %%J in ('where java.exe 2^>nul') do (
    set "JAVA_PATH=%%J"
    goto :java_path_found
)

:java_path_found
echo [INFO] Java executable: %JAVA_PATH%

set "JAVA_VERSION="
for /f "tokens=2" %%V in ('java --version 2^>^&1 ^| findstr /R /C:"^openjdk " /C:"^java "') do (
    if not defined JAVA_VERSION set "JAVA_VERSION=%%V"
)

if not defined JAVA_VERSION (
    echo [ERROR] Tidak dapat membaca versi Java.
    goto :failed
)

for /f "tokens=1 delims=." %%M in ("%JAVA_VERSION%") do set "JAVA_MAJOR=%%M"

if not "%JAVA_MAJOR%"=="25" (
    echo [ERROR] Java 25 diperlukan.
    echo [INFO] Java yang terdeteksi: %JAVA_VERSION%
    goto :failed
)

echo [OK] Java 25 terdeteksi.

if exist "%GRADLE_BIN%" goto :gradle_ready

echo [INFO] Gradle %GRADLE_VERSION% belum tersedia.
echo [INFO] Mengunduh distribusi resmi...

if not exist "%LOCAL_GRADLE_DIR%" mkdir "%LOCAL_GRADLE_DIR%"

set "GRADLE_ZIP=%LOCAL_GRADLE_DIR%\gradle-%GRADLE_VERSION%-bin.zip"
set "GRADLE_URL=https://services.gradle.org/distributions/gradle-%GRADLE_VERSION%-bin.zip"

where curl.exe >nul 2>&1
if errorlevel 1 (
    echo [ERROR] curl.exe tidak ditemukan.
    goto :failed
)

curl.exe -L --fail --progress-bar "%GRADLE_URL%" -o "%GRADLE_ZIP%"
if errorlevel 1 (
    echo [ERROR] Gagal mengunduh Gradle %GRADLE_VERSION%.
    goto :failed
)

echo [INFO] Mengekstrak Gradle %GRADLE_VERSION%...
powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "Expand-Archive -LiteralPath '%GRADLE_ZIP%' -DestinationPath '%LOCAL_GRADLE_DIR%' -Force"
if errorlevel 1 (
    echo [ERROR] Gagal mengekstrak Gradle.
    goto :failed
)

del /q "%GRADLE_ZIP%" >nul 2>&1

if not exist "%GRADLE_BIN%" (
    echo [ERROR] Gradle berhasil diekstrak tetapi executable tidak ditemukan.
    goto :failed
)

:gradle_ready
echo [OK] Gradle %GRADLE_VERSION% tersedia.
echo [INFO] Menjalankan clean build Lobby Systems v%MOD_VERSION%...
echo.

call "%GRADLE_BIN%" clean build --no-daemon
if errorlevel 1 goto :build_failed

echo.
echo ============================================
echo  BUILD SUCCESS
echo ============================================

if exist "%JAR_PATH%" (
    echo JAR:
    echo %JAR_PATH%
) else (
    echo [WARN] Build berhasil, tetapi JAR utama tidak ditemukan pada:
    echo %JAR_PATH%
)

if "%BUILD_ONLY%"=="1" exit /b 0

echo.
choice /C YN /N /M "Commit dan push perubahan ke Git/Gitea? [Y/N]: "
if errorlevel 2 goto :skip_git
if errorlevel 1 goto :git_integration

:git_integration
echo.
echo ============================================
echo  Git Integration
echo ============================================
if "%GIT_ONLY%"=="1" echo [INFO] Mode Git-only: build dilewati karena JAR v%MOD_VERSION% sudah tersedia.

where git.exe >nul 2>&1
if errorlevel 1 (
    echo [ERROR] Git tidak ditemukan di PATH.
    goto :git_failed
)

git rev-parse --is-inside-work-tree >nul 2>&1
if errorlevel 1 (
    echo [ERROR] Folder ini belum menjadi Git repository.
    echo.
    echo Jalankan terlebih dahulu:
    echo   git init
    echo   git branch -M main
    echo   git remote add origin ^<URL-GITEA^>
    echo.
    goto :git_failed
)

echo [INFO] Memeriksa perubahan...
set "HAS_CHANGES="
for /f "delims=" %%G in ('git status --porcelain') do set "HAS_CHANGES=1"

if defined HAS_CHANGES (
    echo.
    echo Perubahan ditemukan:
    git status --short
    echo.

    call :suggest_commit_message
    echo [SUGGEST] Commit message: !SUGGESTED_COMMIT!
    echo [INFO] Tekan Enter untuk memakai saran tersebut, atau ketik pesan sendiri.
    set "COMMIT_MESSAGE="
    set /p "COMMIT_MESSAGE=Commit message [!SUGGESTED_COMMIT!]: "
    if not defined COMMIT_MESSAGE set "COMMIT_MESSAGE=!SUGGESTED_COMMIT!"

    echo.
    echo [INFO] Menambahkan perubahan ke staging...
    git add -A
    if errorlevel 1 (
        echo [ERROR] git add gagal.
        goto :git_failed
    )

    echo [INFO] Membuat commit...
    git commit -m "!COMMIT_MESSAGE!"
    if errorlevel 1 (
        echo [ERROR] git commit gagal.
        goto :git_failed
    )
) else (
    echo [INFO] Tidak ada perubahan source yang perlu di-commit.
    echo [INFO] Akan mencoba push commit lokal yang belum terkirim, jika ada.
)

set "CURRENT_BRANCH="
for /f "delims=" %%B in ('git branch --show-current') do set "CURRENT_BRANCH=%%B"

if not defined CURRENT_BRANCH (
    echo [ERROR] Tidak dapat menentukan branch Git aktif.
    goto :git_failed
)

git remote get-url origin >nul 2>&1
if errorlevel 1 (
    echo [ERROR] Remote Git 'origin' belum dikonfigurasi.
    echo Commit lokal tetap tersimpan.
    goto :git_failed
)

call :push_branch_with_retry
if errorlevel 1 goto :git_failed

echo.
echo [SUCCESS] Push ke Git/Gitea berhasil.
goto :success

:suggest_commit_message
set "SUGGESTED_COMMIT=Update Lobby Systems v%MOD_VERSION%"
set "HAS_SRC_CHANGE="
set "HAS_SCRIPT_CHANGE="
set "HAS_DOC_CHANGE="
for /f "delims=" %%F in ('git status --porcelain') do (
    set "LINE=%%F"
    echo !LINE! | findstr /I /C:"src/" >nul && set "HAS_SRC_CHANGE=1"
    echo !LINE! | findstr /I /C:"compile.bat" /C:"compile.sh" /C:"release.bat" /C:"release.sh" >nul && set "HAS_SCRIPT_CHANGE=1"
    echo !LINE! | findstr /I /C:"README.md" /C:"LICENSE" >nul && set "HAS_DOC_CHANGE=1"
)
if defined HAS_SRC_CHANGE set "SUGGESTED_COMMIT=Fix join gamemode enforcement in Lobby Systems v%MOD_VERSION%"
if not defined HAS_SRC_CHANGE if defined HAS_SCRIPT_CHANGE set "SUGGESTED_COMMIT=Improve build and Git workflow"
if not defined HAS_SRC_CHANGE if not defined HAS_SCRIPT_CHANGE if defined HAS_DOC_CHANGE set "SUGGESTED_COMMIT=Update Lobby Systems documentation"
exit /b 0

:push_branch_with_retry
set /a PUSH_ROUND=1
:push_round_start
set /a PUSH_ATTEMPT=1
:push_attempt_start
echo.
echo [INFO] Push attempt !PUSH_ATTEMPT!/3 ^(round !PUSH_ROUND!^) ke origin/!CURRENT_BRANCH!...
git push origin "!CURRENT_BRANCH!"
if not errorlevel 1 exit /b 0

echo [WARN] Push attempt !PUSH_ATTEMPT!/3 gagal.
if !PUSH_ATTEMPT! LSS 3 (
    set /a PUSH_ATTEMPT+=1
    echo [INFO] Mencoba lagi dalam 2 detik...
    timeout /t 2 /nobreak >nul
    goto :push_attempt_start
)

echo.
echo ============================================
echo  GIT PUSH FAILED - 3 ATTEMPTS
echo ============================================
echo [INFO] Commit lokal tetap aman dan tidak perlu compile ulang.
choice /C YN /N /M "Coba push 3x lagi? [Y/N]: "
if errorlevel 2 exit /b 1
set /a PUSH_ROUND+=1
goto :push_round_start

:skip_git
echo.
echo [INFO] Git commit/push dilewati.
goto :success

:success
echo.
echo ============================================
echo  Lobby Systems v%MOD_VERSION% selesai.
echo ============================================
echo.
pause
exit /b 0

:build_failed
echo.
echo ============================================
echo  BUILD FAILED
echo ============================================
echo.
echo [ERROR] Build gagal.
echo [INFO] Git Integration tidak dijalankan.
echo.
if "%BUILD_ONLY%"=="1" exit /b 1
pause
exit /b 1

:git_failed
echo.
echo ============================================
echo  GIT FAILED
echo ============================================
echo.
if "%GIT_ONLY%"=="1" (
    echo [INFO] Build tidak dijalankan; JAR v%MOD_VERSION% yang sudah ada tetap aman.
) else (
    echo [INFO] Build Lobby Systems tetap berhasil.
)
echo [INFO] Commit lokal tetap tersimpan.
echo [INFO] Jalankan compile.bat lagi; jika JAR versi sama terdeteksi, pilih G untuk Git-only.
echo.
pause
exit /b 2

:failed
echo.
echo Build gagal.
echo.
if "%BUILD_ONLY%"=="1" exit /b 1
pause
exit /b 1