import java.util.Properties
import java.io.FileInputStream
import java.io.FileOutputStream

plugins {
    id("com.android.application")
    id("kotlin-android")
    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
    id("dev.flutter.flutter-gradle-plugin")
    // Google Services (FCM)
    id("com.google.gms.google-services")
    // Huawei AppGallery Connect (HMS Push)
    id("com.huawei.agconnect")
}

// ============================================
// Auto-increment version code on each build
// ============================================
val versionPropertiesFile = rootProject.file("app/version.properties")
val versionProperties = Properties()

fun calculateNextVersionCode(): Int {
    if (versionPropertiesFile.exists()) {
        versionProperties.load(FileInputStream(versionPropertiesFile))
    }
    val currentCode = versionProperties.getProperty("VERSION_CODE", "0").toInt()
    val newCode = currentCode + 1
    versionProperties.setProperty("VERSION_CODE", newCode.toString())
    versionProperties.store(FileOutputStream(versionPropertiesFile), "Auto-generated version code - DO NOT EDIT MANUALLY")
    return newCode
}

val autoVersionCode = calculateNextVersionCode()

// Version name: major.minor.patch (from pubspec.yaml) + build number
// Example: 1.0.0.42
fun getAutoVersionName(): String {
    val flutterVersionName = flutter.versionName
    return "$flutterVersionName.$autoVersionCode"
}

android {
    namespace = "com.iagent.it0_app"
    compileSdk = flutter.compileSdkVersion
    ndkVersion = flutter.ndkVersion

    compileOptions {
        isCoreLibraryDesugaringEnabled = true
        sourceCompatibility = JavaVersion.VERSION_17
        targetCompatibility = JavaVersion.VERSION_17
    }

    kotlinOptions {
        jvmTarget = JavaVersion.VERSION_17.toString()
    }

    defaultConfig {
        applicationId = "com.iagent.it0_app"
        minSdk = flutter.minSdkVersion
        targetSdk = flutter.targetSdkVersion
        versionCode = autoVersionCode
        versionName = getAutoVersionName()

        // OEM push credentials injected as BuildConfig fields.
        // Set these in local.properties or CI environment variables.
        val localProps = Properties().also { p ->
            rootProject.file("local.properties").takeIf { it.exists() }?.let {
                p.load(FileInputStream(it))
            }
        }
        buildConfigField("String", "MI_APP_ID",       "\"${localProps.getProperty("MI_APP_ID", "")}\"")
        buildConfigField("String", "MI_APP_KEY",      "\"${localProps.getProperty("MI_APP_KEY", "")}\"")
        buildConfigField("String", "OPPO_APP_KEY",    "\"${localProps.getProperty("OPPO_APP_KEY", "")}\"")
        buildConfigField("String", "OPPO_APP_SECRET", "\"${localProps.getProperty("OPPO_APP_SECRET", "")}\"")
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig = signingConfigs.getByName("debug")
            isMinifyEnabled = true
            proguardFiles(
                getDefaultProguardFile("proguard-android-optimize.txt"),
                "proguard-rules.pro"
            )
        }
    }

    buildFeatures {
        buildConfig = true
    }
}

dependencies {
    coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.1.4")

    // ── OEM Push SDKs ──────────────────────────────────────────────────────────
    // AARs placed in android/app/libs/ (downloaded from each OEM's developer portal).
    // Xiaomi Push SDK: https://dev.mi.com/distribute/doc/details?pId=1479
    // OPPO HeytapPush SDK: https://open.oppomobile.com/new/developmentDoc/info?id=11212
    // vivo Push SDK: https://dev.vivo.com.cn/documentCenter/doc/332
    implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar", "*.aar"))))
}

flutter {
    source = "../.."
}