# 启动本机模拟器并装上 debug APK。
#
# 之所以写这个脚本而不是让人手敲：这台机器上 Gradle 与 emulator 都需要几个
# 环境变量（受限沙箱下 ~/.android 不可写、%TEMP% 不可写），漏一个就报
# "AccessDeniedException" 或 "Could not connect to Kotlin compile daemon"。
#
#   pwsh -File android/scripts/emulator.ps1            # 只启动模拟器
#   pwsh -File android/scripts/emulator.ps1 -Install   # 顺带编译并安装 APK
#
# 首次使用前需要有：
#   - JDK 17（默认 .local/jdk17/...，可用 -JdkHome 覆盖）
#   - Android SDK platform 35 + system-images;android-35;google_apis;x86_64
#   - 已创建的 AVD（默认名 dadao，可用 -AvdName 覆盖）

param(
    [switch]$Install,
    [string]$AvdName = "dadao",
    [string]$JdkHome = "",
    [string]$SdkHome = "$env:LOCALAPPDATA\Android\Sdk"
)

$ErrorActionPreference = "Stop"
$repo = Split-Path -Parent (Split-Path -Parent $PSScriptRoot)   # android/.. -> 仓库根
$local = Join-Path $repo ".local"

if (-not $JdkHome) {
    $JdkHome = Join-Path $local "jdk17\jdk-17.0.21.0.2+1"
}
if (-not (Test-Path $JdkHome)) { throw "找不到 JDK 17：$JdkHome（用 -JdkHome 指定）" }
if (-not (Test-Path (Join-Path $SdkHome "platform-tools\adb.exe"))) { throw "找不到 Android SDK：$SdkHome" }

# 这几个目录必须是可写的，否则 Gradle/Kotlin/AGP 会以各种 AccessDenied 失败
$env:JAVA_HOME = $JdkHome
$env:GRADLE_USER_HOME = Join-Path $local "gradle-home"
$env:ANDROID_HOME = $SdkHome
$env:ANDROID_SDK_ROOT = $SdkHome
$env:ANDROID_USER_HOME = Join-Path $local "android-user"
$env:ANDROID_AVD_HOME = Join-Path $local "android-avd"
$env:TEMP = Join-Path $local "tmp"
$env:TMP = $env:TEMP
foreach ($d in @($env:GRADLE_USER_HOME, $env:ANDROID_USER_HOME, $env:ANDROID_AVD_HOME, $env:TEMP)) {
    New-Item -ItemType Directory -Force -Path $d | Out-Null
}

$adb = Join-Path $SdkHome "platform-tools\adb.exe"
$emulator = Join-Path $SdkHome "emulator\emulator.exe"

if ($Install) {
    Push-Location (Join-Path $repo "android")
    try {
        & (Join-Path $local "gradle-8.13\bin\gradle.bat") :app:assembleDebug --no-daemon --console=plain
    } finally {
        Pop-Location
    }
}

& $adb start-server | Out-Null
$running = & $adb devices | Select-String "emulator-\d+\s+device"
if (-not $running) {
    Write-Host "启动模拟器 $AvdName ..."
    Start-Process -FilePath $emulator -ArgumentList @(
        "-avd", $AvdName, "-no-window", "-no-audio", "-no-boot-anim",
        "-no-snapshot", "-gpu", "swiftshader_indirect"
    ) -WindowStyle Hidden
}

Write-Host "等待开机完成 ..."
for ($i = 0; $i -lt 60; $i++) {
    Start-Sleep -Seconds 5
    $boot = (& $adb shell getprop sys.boot_completed 2>$null) -join ""
    if ($boot.Trim() -eq "1") { break }
}
if ($boot.Trim() -ne "1") { throw "模拟器 5 分钟内没起来，看 $local\emulator.log" }

if ($Install) {
    $apk = Join-Path $repo "android\app\build\outputs\apk\debug\app-debug.apk"
    & $adb install -r $apk
    & $adb shell am start -n com.dadao.task/.MainActivity | Out-Null
    Write-Host "已安装并启动。后端要在 8100 端口，模拟器通过 10.0.2.2 访问宿主机。"
} else {
    Write-Host "模拟器就绪。"
}