@echo off
chcp 65001 >nul
setlocal enabledelayedexpansion

echo ========================================
echo 下载Gradle Wrapper JAR文件
echo ========================================
echo.

REM 获取当前脚本所在目录的绝对路径
set "PROJECT_DIR=%~dp0"
set "PROJECT_DIR=%PROJECT_DIR:~0,-1%"

REM 创建目录（如果不存在）
if not exist "gradle\wrapper" mkdir "gradle\wrapper"

REM 检查是否已存在
if exist "gradle\wrapper\gradle-wrapper.jar" (
    echo gradle-wrapper.jar 已存在，跳过下载
    echo 文件位置: %PROJECT_DIR%\gradle\wrapper\gradle-wrapper.jar
    pause
    exit /b 0
)

echo 正在尝试下载 gradle-wrapper.jar...
echo.

REM 尝试多个下载地址
set "DOWNLOADED=0"

REM 方法1：GitHub官方地址
echo [尝试1] 从GitHub官方地址下载...
powershell -Command "& {[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; try { Invoke-WebRequest -Uri 'https://raw.githubusercontent.com/gradle/gradle/v8.0.0/gradle/wrapper/gradle-wrapper.jar' -OutFile 'gradle\wrapper\gradle-wrapper.jar' -ErrorAction Stop; Write-Host '下载成功！'; exit 0 } catch { Write-Host '下载失败: ' $_.Exception.Message; exit 1 } }"
if %errorlevel% equ 0 (
    if exist "gradle\wrapper\gradle-wrapper.jar" (
        set "DOWNLOADED=1"
        goto :success
    )
)

REM 方法2：GitHub备用地址
if !DOWNLOADED!==0 (
    echo.
    echo [尝试2] 从GitHub备用地址下载...
    powershell -Command "& {[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; try { Invoke-WebRequest -Uri 'https://github.com/gradle/gradle/raw/v8.0.0/gradle/wrapper/gradle-wrapper.jar' -OutFile 'gradle\wrapper\gradle-wrapper.jar' -ErrorAction Stop; Write-Host '下载成功！'; exit 0 } catch { Write-Host '下载失败: ' $_.Exception.Message; exit 1 } }"
    if %errorlevel% equ 0 (
        if exist "gradle\wrapper\gradle-wrapper.jar" (
            set "DOWNLOADED=1"
            goto :success
        )
    )
)

REM 如果都失败了
if !DOWNLOADED!==0 (
    echo.
    echo ========================================
    echo 自动下载失败！
    echo ========================================
    echo.
    echo 请使用以下方法之一：
    echo.
    echo 【方法1】使用Android Studio（推荐，最简单）
    echo   1. 用Android Studio打开项目
    echo   2. 等待Gradle同步完成
    echo   3. 所有文件会自动生成
    echo.
    echo 【方法2】手动下载
    echo   1. 访问以下链接（任选一个）：
    echo      - https://raw.githubusercontent.com/gradle/gradle/v8.0.0/gradle/wrapper/gradle-wrapper.jar
    echo      - https://github.com/gradle/gradle/raw/v8.0.0/gradle/wrapper/gradle-wrapper.jar
    echo   2. 下载后保存到: %PROJECT_DIR%\gradle\wrapper\gradle-wrapper.jar
    echo   3. 文件名必须是: gradle-wrapper.jar
    echo.
    echo 【方法3】使用已安装的Gradle
    echo   在项目根目录运行: gradle wrapper --gradle-version 8.0
    echo.
    echo 详细说明请查看: 手动下载说明.md
    echo ========================================
    echo.
    pause
    exit /b 1
)

:success
echo.
echo ========================================
echo 下载成功！
echo.
echo 文件已保存到:
echo %PROJECT_DIR%\gradle\wrapper\gradle-wrapper.jar
echo ========================================
echo.
echo 现在可以运行 build-apk.bat 进行打包了！
echo.
pause
exit /b 0