plugins {
    id 'application'
    id 'org.graalvm.buildtools.native' version '0.10.6'
    id 'com.github.johnrengelman.shadow' version '8.1.1'
}

repositories {
    mavenLocal()
    mavenCentral()
    maven { 
        url = uri("https://central.sonatype.com/repository/maven-snapshots")
    }
    maven {
        url = "https://maven.rblb.it/NostrGameEngine/libdatachannel-java"
    }
}

dependencies {
    testImplementation libs.junit
    
    implementation "org.ngengine:nge-app:${ngeVersion}"
    implementation "org.ngengine:nge-app-jvm:${ngeVersion}"
    implementation "org.ngengine:nge-auth:${ngeVersion}"
    implementation "org.ngengine:nge-core:${ngeVersion}"
    implementation "org.ngengine:nge-gui:${ngeVersion}"
    implementation "org.ngengine:nge-networking:${ngeVersion}"
    
    implementation "org.ngengine:jme3-desktop:${ngeVersion}"
    implementation "org.ngengine:jme3-effects:${ngeVersion}"
    implementation "org.ngengine:jme3-jogg:${ngeVersion}"
    implementation "org.ngengine:jme3-lwjgl3:${ngeVersion}"
    implementation "org.ngengine:jme3-plugins:${ngeVersion}"
    
}

java {
    toolchain {
        languageVersion = JavaLanguageVersion.of(21)
        vendor = JvmVendorSpec.ADOPTIUM 
        implementation = JvmImplementation.VENDOR_SPECIFIC
    }
}

application {
    mainClass = project.findProperty('mainClass')
}


shadowJar {
    archiveBaseName = "${rootProject.name}"
    archiveClassifier = 'portable'
    archiveVersion = "${project.version}"
    destinationDirectory = file("${rootProject.projectDir}/dist/portable")
    manifest {
        attributes 'Main-Class': application.mainClass.get()
    }
    mergeServiceFiles()
}


build.dependsOn shadowJar

graalvmNative {
    toolchainDetection = true
    metadataRepository {
        enabled = true
    }
    binaries {
        main {
            def buildName =  "${rootProject.name}";
            imageName = buildName
            def initAtRuntime = file("${project.projectDir}/graal.initialize-at-runtime.conf")
                .text
                .split("\\r?\\n")
                .findAll { it && !it.startsWith('#') && !it.trim().isEmpty() }
                .join(',')

            mainClass = application.mainClass.get()
                def arguments = [
                '--report-unsupported-elements-at-runtime',
                '--install-exit-handlers',
                '--add-exports=java.desktop/sun.awt=ALL-UNNAMED',
                '--add-exports=java.desktop/sun.java2d=ALL-UNNAMED',
                '--add-exports=java.base/sun.nio.ch=ALL-UNNAMED',
                '-H:+ReportExceptionStackTraces',
                '-H:+PrintClassInitialization',
                '--initialize-at-run-time=' + initAtRuntime,
                '--no-server',
                '--enable-url-protocols=http,https,file',
                '--link-at-build-time',
                '-H:+UnlockExperimentalVMOptions',
                '--enable-native-access=ALL-UNNAMED',
                '-H:+StaticExecutableWithDynamicLibC',
                '-march=compatibility',
                '-Djava.awt.headless=true',
                '-H:IncludeResources=.*',
                '-H:Name=' + buildName,
                "-H:ConfigurationFileDirectories=${project.projectDir}/trace"
            ]
            
            // Add G1 GC only if linux
            if (org.gradle.internal.os.OperatingSystem.current().isLinux()) {
                arguments.add('--gc=G1')
            }
            
            buildArgs.addAll(arguments)
            sharedLibrary = false       
        }
    }
}

configurations { 
    nativeImageCompileOnly {
        canBeResolved = true
    }
}

def getOsName(){
    def osName = org.gradle.internal.os.OperatingSystem.current().getName().toLowerCase()

    if (org.gradle.internal.os.OperatingSystem.current().isWindows()){
        osName = "windows"
    } else if (org.gradle.internal.os.OperatingSystem.current().isMacOsX()) {
        osName = "macos"
    } else if (org.gradle.internal.os.OperatingSystem.current().isLinux()) {
        osName = "linux"
    }

    return osName
}


task traceNative(type: JavaExec) {
    group = 'graalvm'
    description = 'Trace reflection and resource usage'
    mainClass =  application.mainClass.get()
    classpath = sourceSets.main.runtimeClasspath
    jvmArgs = [
        "-agentlib:native-image-agent=config-merge-dir=${project.projectDir}/trace",
        '-Djava.awt.headless=true', '-XstartOnFirstThread'
    ]
    systemProperty 'java.awt.headless', 'false'
    systemProperty 'testMode', 'true'
    doFirst {
        println "Tracing to: ${project.projectDir}/trace"
        println "Run the application and exercise ALL features:"
        println "- Load different asset types (textures, models, sounds)"
        println "- Use UI components"
        println "- Trigger network operations"
        println "- Test different game states"
        println "Then close the application normally."
    }
    doLast {
        println "Tracing complete! Generated/updated files:"
        fileTree("${project.projectDir}/trace").each { file ->
            if (file.isFile()) {
                println "  - ${file.name} (${file.length()} bytes)"
            }
        }
    }
}


task buildNativeExecutable {
    group = 'graalvm'
    description = 'Build native executable for current platform'
    dependsOn 'nativeCompile' 
    doLast {
        def buildDirNative = "${project.buildDir}/native/nativeCompile"
        def executableName = graalvmNative.binaries.main.imageName.get()
        if (org.gradle.internal.os.OperatingSystem.current().isWindows()) {
            executableName += '.exe'
        }
        
        def osName = getOsName()
        def osArch = System.getProperty("os.arch").toLowerCase()
        def buildName =  "${rootProject.name}-${project.version}-${osName}-${osArch}";

        def distDir = file("${rootProject.projectDir}/dist/${buildName}.buildNative")
        distDir.mkdirs()
        
        copy {
            from buildDirNative
            into distDir
            exclude '**/reports/**'
            exclude '**/*.report'
            exclude '**/*.dmp'
            exclude '**/*.log'
        }
        
        println "Native executable built: ${buildDirNative}/${executableName}"
        println "All native build files copied to: ${distDir}"
    }
}



 def jpackage(installerType, distDir){
     def os = org.gradle.internal.os.OperatingSystem.current()


     
    def jarFile = shadowJar.archiveFile.get().asFile
    def jarDir = jarFile.parentFile
    def mainClass = application.mainClass.get()
 

    def shadowJarFile = shadowJar.archiveFile.get().asFile

    def commandLine = [
        'jpackage',
        '--input', jarDir.absolutePath,
        '--main-jar', jarFile.name,
        '--main-class', mainClass,
        '--name', rootProject.name,
        '--app-version', project.version,
        '--type', installerType,
        '--dest', distDir,
        '--java-options',  project.findProperty('javaOptions') ?: '',
        '--copyright',  project.findProperty('copyright')
    ]

    // Optional: platform-specific flags
    if (os.isWindows()) {
        commandLine += ['--win-menu', '--win-shortcut']
    } else if (os.isMacOsX()) {
        commandLine += ['--icon', "${rootProject.projectDir}/icon.icns"]
    } else if (os.isLinux()) {
        commandLine += ['--icon', "${rootProject.projectDir}/icon.png"]
    }
    return commandLine
}

task buildInstaller(type: DefaultTask) {
    group = 'distribution'
    description = 'Create native installer using jpackage'
    dependsOn shadowJar
    
    def os = org.gradle.internal.os.OperatingSystem.current()
    def osName = getOsName()
    def osArch = System.getProperty("os.arch").toLowerCase()
    def buildName =  "${rootProject.name}-${project.version}-${osName}-${osArch}-SETUP";
    def distDir = file("${rootProject.projectDir}/dist/${buildName}.setup")

   
    doLast {
        if (distDir.exists()) {
            println "Deleting existing output directory: ${distDir}"
            delete distDir
        }

        if(os.isWindows()){
            exec {
                commandLine jpackage('exe', distDir)
            }
        } else if(os.isMacOsX()){
            exec {
                commandLine jpackage('dmg', distDir)
            }
        } else if(os.isLinux()){
            exec {
                commandLine jpackage('deb', distDir)
            }
            exec {
                commandLine jpackage('rpm', distDir)
            }
        } 
    }
}