// Copyright 2015-present Facebook. All Rights Reserved.

apply plugin: 'com.android.library'
apply plugin: 'maven'

apply plugin: 'de.undercouch.download'

import de.undercouch.gradle.tasks.download.Download
import org.apache.tools.ant.taskdefs.condition.Os
import org.apache.tools.ant.filters.ReplaceTokens

// We download various C++ open-source dependencies into downloads.
// We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
// After that we build native code from src/main/jni with module path pointing at third-party-ndk.

def downloadsDir = new File("$buildDir/downloads")
def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")

task createNativeDepsDirectories {
    downloadsDir.mkdirs()
    thirdPartyNdkDir.mkdirs()
}

task downloadBoost(dependsOn: createNativeDepsDirectories, type: Download) {
    // Use ZIP version as it's faster this way to selectively extract some parts of the archive
    src 'https://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.zip'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'boost_1_57_0.zip')
}

task prepareBoost(dependsOn: downloadBoost, type: Copy) {
    from zipTree(downloadBoost.dest)
    from 'src/main/jni/third-party/boost/Android.mk'
    include 'boost_1_57_0/boost/**/*.hpp', 'Android.mk'
    into "$thirdPartyNdkDir/boost"
}

task downloadDoubleConversion(dependsOn: createNativeDepsDirectories, type: Download) {
    src 'https://github.com/google/double-conversion/archive/v1.1.1.tar.gz'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'double-conversion-1.1.1.tar.gz')
}

task prepareDoubleConversion(dependsOn: downloadDoubleConversion, type: Copy) {
    from tarTree(downloadDoubleConversion.dest)
    from 'src/main/jni/third-party/double-conversion/Android.mk'
    include 'double-conversion-1.1.1/src/**/*', 'Android.mk'
    filesMatching('*/src/**/*', {fname -> fname.path = "double-conversion/${fname.name}"})
    includeEmptyDirs = false
    into "$thirdPartyNdkDir/double-conversion"
}

task downloadFolly(dependsOn: createNativeDepsDirectories, type: Download) {
    src 'https://github.com/facebook/folly/archive/v0.50.0.tar.gz'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'folly-0.50.0.tar.gz');
}

task prepareFolly(dependsOn: downloadFolly, type: Copy) {
    from tarTree(downloadFolly.dest)
    from 'src/main/jni/third-party/folly/Android.mk'
    include 'folly-0.50.0/folly/**/*', 'Android.mk'
    eachFile {fname -> fname.path = (fname.path - "folly-0.50.0/")}
    includeEmptyDirs = false
    into "$thirdPartyNdkDir/folly"
}

task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
    src 'https://github.com/google/glog/archive/v0.3.3.tar.gz'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'glog-0.3.3.tar.gz')
}

// Prepare glog sources to be compiled, this task will perform steps that normally shoudl've been
// executed by automake. This way we can avoid dependencies on make/automake
task prepareGlog(dependsOn: downloadGlog, type: Copy) {
    from tarTree(downloadGlog.dest)
    from 'src/main/jni/third-party/glog/'
    include 'glog-0.3.3/src/**/*', 'Android.mk', 'config.h'
    includeEmptyDirs = false
    filesMatching('**/*.h.in') {
        filter(ReplaceTokens, tokens: [
                ac_cv_have_unistd_h: '1',
                ac_cv_have_stdint_h: '1',
                ac_cv_have_systypes_h: '1',
                ac_cv_have_inttypes_h: '1',
                ac_cv_have_libgflags: '0',
                ac_google_start_namespace: 'namespace google {',
                ac_cv_have_uint16_t: '1',
                ac_cv_have_u_int16_t: '1',
                ac_cv_have___uint16: '0',
                ac_google_end_namespace: '}',
                ac_cv_have___builtin_expect: '1',
                ac_google_namespace: 'google',
                ac_cv___attribute___noinline: '__attribute__ ((noinline))',
                ac_cv___attribute___noreturn: '__attribute__ ((noreturn))',
                ac_cv___attribute___printf_4_5: '__attribute__((__format__ (__printf__, 4, 5)))'
        ])
        it.path = (it.name - '.in')
    }
    into "$thirdPartyNdkDir/glog"
}

task downloadJSCHeaders(type: Download) {
    def jscAPIBaseURL = 'https://svn.webkit.org/repository/webkit/!svn/bc/174650/trunk/Source/JavaScriptCore/API/'
    def jscHeaderFiles = ['JSBase.h', 'JSContextRef.h', 'JSObjectRef.h', 'JSRetainPtr.h', 'JSStringRef.h', 'JSValueRef.h', 'WebKitAvailability.h']
    def output = new File(downloadsDir, 'jsc')
    output.mkdirs()
    src(jscHeaderFiles.collect { headerName -> "$jscAPIBaseURL$headerName" })
    onlyIfNewer true
    overwrite false
    dest output
}

// Create Android.mk library module based on so files from mvn + include headers fetched from webkit.org
task prepareJSC(dependsOn: downloadJSCHeaders) << {
    copy {
        from zipTree(configurations.compile.fileCollection { dep -> dep.name == 'android-jsc' }.singleFile)
        from {downloadJSCHeaders.dest}
        from 'src/main/jni/third-party/jsc/Android.mk'
        include 'jni/**/*.so', '*.h', 'Android.mk'
        filesMatching('*.h', { fname -> fname.path = "JavaScriptCore/${fname.path}"})
        into "$thirdPartyNdkDir/jsc";
    }
}

def getNdkBuildName() {
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        return "ndk-build.cmd"
    } else {
        return "ndk-build"
    }
}

def findNdkBuildFullPath() {
    // we allow to provide full path to ndk-build tool
    if (hasProperty('ndk.command')) {
        return property('ndk.command')
    }
    // or just a path to the containing directory
    if (hasProperty('ndk.path')) {
        def ndkDir = property('ndk.path')
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    if (System.getenv('ANDROID_NDK') != null) {
        def ndkDir = System.getenv('ANDROID_NDK')
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    def ndkDir = android.hasProperty('plugin') ? android.plugin.ndkFolder :
            plugins.getPlugin('com.android.library').sdkHandler.getNdkFolder()
    if (ndkDir) {
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    return null
}

def getNdkBuildFullPath() {
    def ndkBuildFullPath = findNdkBuildFullPath()
    if (ndkBuildFullPath == null) {
        throw new GradleScriptException(
            "ndk-build binary cannot be found, check if you've set " +
            "\$ANDROID_NDK environment variable correctly or if ndk.dir is " +
            "setup in local.properties",
            null)
    }
    if (!new File(ndkBuildFullPath).canExecute()) {
        throw new GradleScriptException(
            "ndk-build binary " + ndkBuildFullPath + " doesn't exist or isn't executable.\n" +
            "Check that the \$ANDROID_NDK environment variable, or ndk.dir in local.proerties, is set correctly.\n" +
            "(On Windows, make sure you escape backslashes in local.properties or use forward slashes, e.g. C:\\\\ndk or C:/ndk rather than C:\\ndk)",
            null)
    }
    return ndkBuildFullPath
}

task buildReactNdkLib(dependsOn: [prepareJSC, prepareBoost, prepareDoubleConversion, prepareFolly, prepareGlog], type: Exec) {
    inputs.file('src/main/jni/react')
    outputs.dir("$buildDir/react-ndk/all")
    commandLine getNdkBuildFullPath(),
            'NDK_PROJECT_PATH=null',
            "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
            'NDK_OUT=' + temporaryDir,
            "NDK_LIBS_OUT=$buildDir/react-ndk/all",
            "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
            '-C', file('src/main/jni/react/jni').absolutePath,
            '--jobs', Runtime.runtime.availableProcessors()
}

task cleanReactNdkLib(type: Exec) {
    commandLine getNdkBuildFullPath(),
            '-C', file('src/main/jni/react/jni').absolutePath,
            'clean'
}

task packageReactNdkLibs(dependsOn: buildReactNdkLib, type: Copy) {
    from "$buildDir/react-ndk/all"
    exclude '**/libjsc.so'
    into "$buildDir/react-ndk/exported"
}

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"

        ndk {
            moduleName "reactnativejni"
        }

        buildConfigField 'boolean', 'IS_INTERNAL_BUILD', 'false'
    }

    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir "$buildDir/react-ndk/exported"
        res.srcDirs = ['src/main/res/devsupport', 'src/main/res/shell']
    }

    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn packageReactNdkLibs
    }

    clean.dependsOn cleanReactNdkLib

    lintOptions {
        abortOnError false
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'com.facebook.fresco:fresco:0.6.1'
    compile 'com.facebook.fresco:imagepipeline-okhttp:0.6.1'
    compile 'com.fasterxml.jackson.core:jackson-core:2.2.3'
    compile 'com.google.code.findbugs:jsr305:3.0.0'
    compile 'com.squareup.okhttp:okhttp:2.4.0'
    compile 'com.squareup.okhttp:okhttp-ws:2.4.0'
    compile 'com.squareup.okio:okio:1.5.0'
    compile 'org.webkit:android-jsc:r174650'
}

apply from: 'release.gradle'