/* ###
 * IP: GHIDRA
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
apply plugin: 'eclipse'

apply from: 'gradle/root/eclipse.gradle'
apply from: "gradle/support/eclipseLauncher.gradle"
apply from: "gradle/support/loadApplicationProperties.gradle"


/***************************************************************************************
 * Make sure the correct version of gradle is being used
 ***************************************************************************************/
import org.gradle.util.GradleVersion;
final GradleVersion minimum_version = GradleVersion.version("${rootProject.GRADLE_MINIMUM_VERSION}")
if (GradleVersion.current() < minimum_version) {
	throw new GradleException("Requires at least $minimum_version, but was run with $gradle.gradleVersion")
}

/***************************************************************************************
 * Define the location of JAVA_HOME
 ***************************************************************************************/
if (System.env.JAVA_HOME) {
	// Allow Gradle's default JAVA_HOME to be overridden by an environment variable we set
	project.ext.JAVA_HOME = System.env.JAVA_HOME;
}
else {
	project.ext.JAVA_HOME = "${System.properties.'java.home'}"
}

/***************************************************************************************
 * Make sure Gradle wasn't launched with a 32-bit Java...it can cause confusing errors
 ***************************************************************************************/
if ("32".equals(System.getProperty("sun.arch.data.model"))) {
	throw new GradleException("\n\n\t32-bit Java detected!  Please use 64-bit Java.\n\n");
}

/*********************************************************************************
 *  Define the location of bin repo
 *********************************************************************************/
project.ext.GHIDRA_GROUP = "Z Ghidra"
project.ext.ROOT_PROJECT_DIR = projectDir.absolutePath
project.ext.BIN_REPO = file("${projectDir}/../ghidra.bin").absolutePath
project.ext.DEPS_DIR = file("${projectDir}/dependencies")

/*********************************************************************************
 *  Prevent forked Java processes from stealing focus
 *********************************************************************************/
allprojects {
	tasks.withType(JavaForkOptions) {
		jvmArgs '-Djava.awt.headless=true'
	}
}

/*********************************************************************************
 *  Use flat directory-style repository if flatRepo directory is present.
 *********************************************************************************/
def flatRepo = file("${DEPS_DIR}/flatRepo") 
if (flatRepo.isDirectory()) {
	allprojects {
		repositories {
			mavenLocal()
			mavenCentral()
			jcenter()
			flatDir name: "flat", dirs:["$flatRepo"]
		}
	}
}
else {	
	File f = file("ghidra.repos.config")
	if (!f.exists()) {
		throw new GradleException("\n\n\n\tUnable to find the local maven repo." +  
			"  Ensure you have created the ${flatRepo.getName()} directory or ${f.getName()} file.\n\n\n");
	}
}

/****************************************************************************
 * Create a set containing all the platforms we need when building native
 * artifacts.  This is here for convenience and can be used in a build file
 * with the following syntax:
 *
 *		project.OS_NAMES.each {...}
 ****************************************************************************/

project.ext.set("OS_NAMES", ["osx64", "win32", "win64", "linux64"])

/****************************************************************************
 * Establish Visual Studio configuration environment for Windows native builds
 ****************************************************************************/
apply from: "GPL/vsconfig.gradle"

/*********************************************************************************
 * Imports
 *  For these tasks to be available on all subprojects, this MUST be placed 
 *	after the "setupJava" configuration.
 *
 * Note: Distribution.gradle and distributionNew.gradle must not be applied at the
 * 		same time; they have tasks with the same name. The former is the 'old' way
 * 		of building (produces several zips) while the former produces only one. 
 * 		Eventually distribution.gradle will be removed entirely, but it is included
 *		here for the time being for those who need it.
 *********************************************************************************/
apply from: "gradle/root/test.gradle"                     // adds tasks for running tests
apply from: "gradle/root/prepDev.gradle"					// adds prepDev task for each subproject
apply from: 'gradle/root/distribution.gradle'				// adds zip tasks
apply from: 'gradle/root/usage.gradle'						// adds task documentation
apply from: "gradle/root/svg.gradle"						// adds task to process svg files
apply from: "gradle/root/jacoco.gradle"                   // adds tasks for java code coverage


apply plugin: 'base'
clean {
	delete "$buildDir"
}

/******************************************************************************************
 *
 * Utility methods used by multiple build.gradle files
 *
 *****************************************************************************************/	
	
/*********************************************************************************
 * Returns true if the platform is a linux machine.
 *********************************************************************************/
def isLinux(String platformName) {
	return platformName.startsWith("linux")
}


/*********************************************************************************
 * Returns true if the platform is a mac
 *********************************************************************************/
def isMac(String platformName) {
	return platformName.startsWith("osx")
}


/*********************************************************************************
 * Returns true if the platform is a Windows machine.
 *********************************************************************************/
def isWindows(String platformName) {
	return platformName.startsWith("win")
}

/******************************************************************************************
 *	Helper method that returns a file that is the same relative location in the bin repo
 *  as the given project is in its repo.
 ******************************************************************************************/
File getProjectLocationInBinRepo(Project p) {
	String relativePath = getGhidraRelativePath(p)
	
	File binRepoRootProject = new File("${BIN_REPO}")
	return new File(binRepoRootProject, relativePath)
}

/****************************************************************************************
 * Returns the "effective" relative path (Path starting with Ghidra)
 * Normally, for files in the ghidra repo this is just the relative path from 
 * the root project (ghidra) to the given project.  
 *
 *  For example <...>/ghidra/Ghidra/Features/Base will return Ghidra/Features/Base
 *
 *  If the project is in a sibling repo (ghidra.<other> that lives in the same directory
 *  as ghidra), then this method returns a relative path as though the project lived
 *  in ghidra.  
 *
 *	for example <...>/ghidra.foo/Ghidra/Features/OtherProject will return Ghidra/Features/OtherProject
 ****************************************************************************************/
String getGhidraRelativePath(Project p) {
	String path = rootProject.relativePath(p.projectDir)

	// If the project lives outside the ghidra repo, then its relative path will
	// start with "../".  In this case, we want to remove the "../" and the next path element
	// so that the path will appear as though the project lived under the ghidra repo.
	// example:   "../ghidra/Ghidra/Features/Foo"  will get changed to "Ghidra/Features/Foo"
	String prefix = ".."+File.separator
	if (path.startsWith(prefix)) {
		int index = path.indexOf(File.separator,3)
		path = path.substring(index+1)
	}

	return path
}

/*********************************************************************************
 * Returns a relative path from the root (ghidra) to the project's directory.
 * This is used to determine where inside a zip file to place a particular artifact
 *  (we want them to all start at "Ghidra/...."
 *
 * ie: If we have the following:
 * 			project dir = /Users/<blah>/git/ghidra.master/ghidra/Ghidra/Features/Base
 *	 		root project = /Users/<blah>/git/ghidra.master/ghidra/Ghidra
 *
 *	 	Then the returned value will be:
 *	 		Ghidra/Features/Base 
 * 
 *  There are two special cases - Projects that live outside ghidra and projects
 *  that are extension projects.  Projects that live outside ghidra will
 *  have zip paths that make the project appear as if it did live in ghidra.
 *  Projects that extend other projects will appear as though they live in the project
 *  that they extend.  See the note at the top of the distribution.gradle file for more details.
 *********************************************************************************/
def getZipPath(Project p) {
	
	String path = getGhidraRelativePath(p)
		
	// if the project has been defined as an "extension" to another project, change its
	// zip path to the path of its "base" project.  A project is an extension if it has
	// defined an "extendsFromProject" property.
	
	if (p.hasProperty('extendsFromProject')) {
		Project baseProject = p.extendsFromProject
		path = getGhidraRelativePath(baseProject);
	}
	
	if (p.hasProperty("pathExtension")) {
		path = path + "/" + p.pathExtension
	}

	return path
}

def getBaseProjectName(Project p) {
	if (p.hasProperty('extendsFromProject')) {
		Project baseProject = p.extendsFromProject
		return baseProject.name
	}
	
	return p.name
}

/*********************************************************************************
 * Returns the current date formatted as yyyyMMdd.
 *********************************************************************************/
def getCurrentDate() {

	def date = new Date()
	def formattedDate = date.format('yyyyMMdd')
	return formattedDate
}

/*********************************************************************************
 * Returns the current date/time formatted as yyyyMMdd-HHmm.
 *********************************************************************************/
def getCurrentDateTime() {

	def date = new Date()
	def formattedDate = date.format('yyyyMMdd-HHmm')
	return formattedDate
}

/*********************************************************************************
 * Returns the current date/time formatted as yyyy-MMM-dd HHmm z.
 *********************************************************************************/
def getCurrentDateTimeLong() {

	def date = new Date()
	def formattedDate = date.format('yyyy-MMM-dd HHmm z')
	return formattedDate
}

/*********************************************************************************
 * Returns the local platform name.
 *********************************************************************************/
String getCurrentPlatformName() {

	String osName = System.getProperty("os.name")
	String archName = System.getProperty("os.arch")
		
	boolean isX86_32 = archName.equals("x86") || archName.equals("i386");
	boolean isX86_64 = archName.equals("x86_64") || archName.equals("amd64");
	boolean isAARCH_64 = archName.equals("aarch64");

	if (osName.startsWith("Windows")) {
		if (isX86_32) {
			return 'win32'
		}
		else if (isX86_64) {
			return 'win64'
		}
	}
	else if (osName.startsWith("Linux")) {
		if (isX86_64) {
			return 'linux64'
		}
	}
	else if (osName.startsWith("Mac OS X")) {
		if (isX86_64) {
			return 'osx64'
		}
		if (isAARCH_64) {
			return 'aarch64'
		}
	}
	throw new GradleException("Unrecognized current platform -> osName = $osName, archName = $archName")
}

/*********************************************************************************
 * Returns a list of all the external library paths declared as dependencies for the 
 *         given project  
 *
 *********************************************************************************/
List<String> getExternalRuntimeDependencies(Project project) {
	List<String> list = new ArrayList<String>()

	if (project.configurations.find { it.name == 'api' }) {
		list.addAll(getExternalDependencies(project, project.configurations.api));
	}
	if (project.configurations.find { it.name == 'implementation' }) {
		list.addAll(getExternalDependencies(project, project.configurations.implementation));
	}
	if (project.configurations.find { it.name == 'runtimeOnly' }) {
		list.addAll(getExternalDependencies(project, project.configurations.runtimeOnly));
	}

	return list
}

List<String> getExternalDependencies(Project project, Configuration configuration) {
	List<String> list = new ArrayList<>();
	configuration.dependencies.each { dep ->

		// if the dependency is an external jar
		if (dep instanceof ExternalDependency) { 	
			String name = dep.getName()
			Set<String> classifiers = dep.artifacts.classifier
			String group = dep.getGroup()
			String version = dep.getVersion()	
			String searchString = name

			if (version != null) {
				searchString = name+"-"+version;
			}

			if (!classifiers.empty) {
				String cls = classifiers.first()
				if (cls != null) {
					searchString+= "-$cls"
				}
			}

			// loop back through all the dependency files, looking for one that contains the dependency name.	
			String depPath = project.configurations
				.findAll {it.isCanBeResolved()}
				.collect {it.resolve()}
				.flatten()
				.find {it.getAbsolutePath().contains(searchString)
			}
			if (depPath == null) {
				println("****************DID NOT FIND DEPENDENCY: name = "+name+" version = "+version)
			}
			// if we found the path, then add it to the list
			if (depPath) {
				list.add(depPath)
			}
		}	
	}
	return list;
}

/*********************************************************************************
 * Returns a list of all the external library paths declared as dependencies for the 
 *         given project  
 *
 *********************************************************************************/
Set<String> getAllExternalDependencies(Project project) {
	Set<String> set = new HashSet<String>()
	
	project.getConfigurations().each { config ->
		set.addAll(getExternalDependencies(project, config))
	}
	
	return set
}

/******************************************************************************************
 * 
 * Creates a file that lists the libraries used by each module.
 *
 ******************************************************************************************/
String generateLibraryDependencyMapping() {
	File libsFile = file("$buildDir/libraryDependencies.txt")
	
	// Check to make sure the build folder exists - if it doesn't, the 'libsFile.withWriter'
	// call (below) will fail miserably.
	def buildFolder = file ("$buildDir")
	if (!buildFolder.exists()) {
		buildFolder.mkdirs()
	}
	
	libsFile.withWriter { out ->
		subprojects { p ->
			p.plugins.withType(JavaPlugin) {
				List<String> libs = getExternalRuntimeDependencies(p);
				if (libs != null) {
					out.println "Module: $p.name"
					libs.each { path ->
						out.println "\t$path"
					}
				}
			}
		}
	}
	return libsFile.absolutePath
}
/******************************************************************************************
 * 
 * Creates a file that lists all external jars used to build and run Ghidra
 *
 ******************************************************************************************/
String generateAllExternalLibsFile() {
	File libsFile = file("$buildDir/AllExternalLibs.txt")
	
	// Check to make sure the build folder exists - if it doesn't, the 'libsFile.withWriter'
	// call (below) will fail miserably.
	def buildFolder = file ("$buildDir")
	if (!buildFolder.exists()) {
		buildFolder.mkdirs()
	}
	Set<String> allLibs = new HashSet<>();
	subprojects { p ->
		p.plugins.withType(JavaPlugin) {
			Set<String> libs = getAllExternalDependencies(p);
			if (libs != null) {
				allLibs.addAll(libs);
			}
		}
	}
	libsFile.withWriter { out ->
		allLibs.each { path ->
			out.println "$path"
		}
	}
	return libsFile.absolutePath
}


task allSleighCompile {
}