buildscript {
    repositories {
        mavenLocal()
        maven { url = 'https://files.minecraftforge.net/maven' }
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:3.+'
    }
}
import groovy.json.JsonSlurper
import groovy.json.JsonBuilder
import java.text.SimpleDateFormat
import java.util.Date
import java.util.LinkedHashMap
import java.security.MessageDigest
import java.net.URL
import net.minecraftforge.gradle.common.task.ArchiveChecksum
import net.minecraftforge.gradle.common.task.DownloadMavenArtifact
import net.minecraftforge.gradle.common.task.SignJar
import net.minecraftforge.gradle.patcher.task.ApplyBinPatches
import org.apache.tools.ant.filters.ReplaceTokens
import de.undercouch.gradle.tasks.download.Download
import net.minecraftforge.gradle.patcher.task.TaskReobfuscateJar

import java.util.stream.Collectors

plugins {
    id 'net.minecrell.licenser' version '0.4'
    id 'org.ajoberstar.grgit' version '2.3.0'
    id 'de.undercouch.download' version '3.3.0'
}
apply plugin: 'eclipse'

ext {
    JAR_SIGNER = null
    if (project.hasProperty('keystore')) {
        JAR_SIGNER = [
            storepass: project.properties.keystoreStorePass,
            keypass: project.properties.keystoreKeyPass,
            keystore: project.properties.keystore
        ]
    }
    MAPPING_CHANNEL = 'snapshot'
    MAPPING_VERSION = '20180921-1.13'
    MC_VERSION = '1.13'
    MCP_VERSION = '2018.09.12.04.11.00'
}

project(':mcp') {
    apply plugin: 'net.minecraftforge.gradle.forgedev.mcp'
    mcp {
        config = MC_VERSION + '-' + MCP_VERSION
        pipeline = 'joined'
    }
}

project(':clean') {
    evaluationDependsOn(':mcp')
    apply plugin: 'eclipse'
    apply plugin: 'net.minecraftforge.gradle.forgedev.patcher'
    repositories {
        mavenCentral()
    }
    patcher {
        parent = project(':mcp')
        patchedSrc = file('src/main/java')
        mappings channel: MAPPING_CHANNEL, version: MAPPING_VERSION
        mcVersion = MC_VERSION
    }
    task runclient(type: JavaExec) {
        doFirst {
            mkdir 'runclient'
        }
        classpath sourceSets.main.runtimeClasspath
        args = ['--accessToken', '0', '--version', '1.13']
        main 'net.minecraft.client.main.Main'
        workingDir 'runclient'
    }
}

project(':forge') {    
    evaluationDependsOn(':clean')
    apply plugin: 'java-library'
    apply plugin: 'maven-publish'
    apply plugin: 'eclipse'
    apply plugin: 'net.minecraftforge.gradle.forgedev.patcher'
    apply plugin: 'net.minecrell.licenser'
    apply plugin: 'de.undercouch.download'
    
    compileJava.sourceCompatibility = compileJava.targetCompatibility = sourceCompatibility = targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
    group = 'net.minecraftforge.test' //TODO: remove test when we finish patches and want users to find it

    sourceSets {
        fmllauncher {
            java {
                srcDir "$rootDir/src/fmllauncher/java"
            }
            resources {
                srcDir "$rootDir/src/fmllauncher/resources"
            }
        }
        main {
            compileClasspath += sourceSets.fmllauncher.runtimeClasspath
            runtimeClasspath += sourceSets.fmllauncher.runtimeClasspath
            java {
                srcDir "$rootDir/src/main/java"
            }
            resources {
                srcDir "$rootDir/src/main/resources"
            }
        }
        userdev {
            compileClasspath += sourceSets.main.runtimeClasspath
            runtimeClasspath += sourceSets.main.runtimeClasspath
            java {
                srcDir "$rootDir/src/userdev/java"
            }
            resources {
                srcDir "$rootDir/src/userdev/resources"
            }
        }
    }
    repositories {
        mavenLocal()
        mavenCentral()
    }
    ext {
        SPEC_VERSION = '24.0' // This is overwritten by git tag, but here so dev time doesnt explode
        // The new versioning sceme is <MCVersion>-<ForgeMC>.<RB>.<CommitsSinceRB>
        // ForgeMC is a unique identifier for every MC version we have supported.
        // Essentially, the same as the old, except dropping the first number, and the builds are no longer unique.
        MCP_ARTIFACT = project(':mcp').mcp.config
    }
    patcher {
        parent = project(':clean')
        patches = file("$rootDir/patches/minecraft")
        patchedSrc = file('src/main/java')
        accessTransformer = file("$rootDir/src/main/resources/forge_at.cfg")
        exc = file("$rootDir/src/main/resources/forge.exc")
        srgPatches = true
        clientRun {
            main = 'net.minecraftforge.fml.LaunchTesting'
            environment = [
                target: 'fmldevclient',
                assetDirectory: downloadAssets.output,
                nativesDirectory: extractNatives.output
            ]
            properties = [
                'org.lwjgl.util.Debug': 'true',
                'org.lwjgl.util.DebugLoader': 'true',
                'org.lwjgl.system.SharedLibraryExtractDirectory': 'lwjgl_dll',
                'mc.version': MC_VERSION,
                'mcp.version': MCP_VERSION,
                'forge.version': "${project.version.substring(MC_VERSION.length() + 1)}".toString(),
                'forge.spec': SPEC_VERSION,
                'forge.group': project.group
            ]
        }
        serverRun {
            main = 'net.minecraftforge.fml.LaunchTesting'
            environment = [
                target: 'fmldevserver'
            ]
            properties = [
                'mc.version': MC_VERSION,
                'mcp.version': MCP_VERSION,
                'forge.version': "${project.version.substring(MC_VERSION.length() + 1)}".toString(),
                'forge.spec': SPEC_VERSION,
                'forge.group': project.group
            ]
        }
    }
    
    def getVersion = {
        //TAG-offset-hash
        def raw = grgit.describe(longDescr: true)
        def desc = (raw == null ? '0.0-0-unknown' : grgit.describe(longDescr: true)).split('-') as List
        def hash = desc.remove(desc.size() - 1)
        def offset = desc.remove(desc.size() - 1)
        def tag = desc.join('-')
        def branch = grgit.branch.current().name
        if (branch in ['master', 'HEAD', MC_VERSION, MC_VERSION + '.0'])
            branch = null
        if (branch != null && branch.endsWith('.x') && MC_VERSION.startsWith(branch.substring(0, branch.length() - 2))) //1.13.x
            branch = null
        SPEC_VERSION = tag
        return "${MC_VERSION}-${tag}.${offset}${t -> if (branch != null) t << '-' + branch}".toString() //Bake the response instead of making it dynamic
    }
    
    version = getVersion()
    applyPatches {
        canonicalizeAccess true
        canonicalizeWhitespace true
        maxFuzz 3
    }
    configurations {
        installer {
            transitive = false //Don't pull all libraries, if we're missing something, add it to the installer list so the installer knows to download it.
        }
        api.extendsFrom(installer)
    }
    dependencies {
        api 'net.minecraft:client:1.13:extra'
        installer 'com.paulscode:soundsystem:2018+'
        installer 'org.ow2.asm:asm:6.2'
        installer 'org.ow2.asm:asm-commons:6.2'
        installer 'org.ow2.asm:asm-tree:6.2'
        installer 'cpw.mods:modlauncher:0.1.0'
        installer 'net.minecraftforge:accesstransformers:0.10+:shadowed'
        installer 'net.minecraftforge:eventbus:0.1+:service'
        installer 'net.minecraftforge:forgespi:0.1+'
        installer 'net.minecraftforge:coremods:0.1+'
        installer 'com.electronwill.night-config:core:3.4.0'
        installer 'com.electronwill.night-config:toml:3.4.0'
        installer 'org.jline:jline:3.5.1'
        installer 'org.apache.maven:maven-artifact:3.5.3'
        installer 'net.jodah:typetools:0.5.0'
        installer 'java3d:vecmath:1.5.2'
        installer 'org.apache.logging.log4j:log4j-api:2.11.1'
        installer 'org.apache.logging.log4j:log4j-core:2.11.1'
        fmllauncherImplementation 'org.ow2.asm:asm:6.2'
        fmllauncherImplementation 'org.ow2.asm:asm-commons:6.2'
        fmllauncherImplementation 'org.ow2.asm:asm-tree:6.2'
        fmllauncherImplementation 'cpw.mods:modlauncher:0.1.0'
        fmllauncherImplementation 'net.minecraftforge:accesstransformers:0.10+:shadowed'
        fmllauncherImplementation 'net.minecraftforge:eventbus:0.1+:service'
        fmllauncherImplementation 'net.minecraftforge:forgespi:0.1+'
        fmllauncherImplementation 'net.minecraftforge:coremods:0.1+'
        fmllauncherImplementation 'com.electronwill.night-config:core:3.4.0'
        fmllauncherImplementation 'com.electronwill.night-config:toml:3.4.0'
        fmllauncherImplementation 'org.apache.maven:maven-artifact:3.5.3'
        fmllauncherImplementation 'org.apache.logging.log4j:log4j-api:2.11.1'
        fmllauncherImplementation 'org.apache.logging.log4j:log4j-core:2.11.1'
        fmllauncherImplementation 'com.google.guava:guava:21.0'
        fmllauncherImplementation 'com.google.code.gson:gson:2.8.0'
    }

    task runclient(type: JavaExec, dependsOn: [":forge:downloadAssets", ":forge:extractNatives"]) {
        doFirst {
            mkdir 'runclient'
        }
        doFirst {
            copy {
                from sourceSets.main.resources
                into "$buildDir/classes/java/main"
            }
        }
        //jvmArgs = ['-verbose:class']
        classpath sourceSets.main.runtimeClasspath
        main 'net.minecraftforge.fml.LaunchTesting'
        systemProperties = [
                "org.lwjgl.util.Debug": "true",
                "org.lwjgl.util.DebugLoader": "true",
                "mc.version": "${MC_VERSION}",
                "mcp.version": "${MCP_VERSION}",
                "forge.version": "${project.version.substring(MC_VERSION.length() + 1)}",
                "forge.spec":"${SPEC_VERSION}",
                "forge.group": project.group
        ]
        environment += [
                target:'fmldevclient',
                assetDirectory: downloadAssets.output,
                nativesDirectory: extractNatives.output
        ]
        workingDir 'runclient'
    }

    task runserver(type: JavaExec) {
        doFirst {
            mkdir 'runserver'
        }
        doFirst {
            copy {
                from sourceSets.main.resources
                into "$buildDir/classes/java/main"
            }
        }
        classpath sourceSets.main.runtimeClasspath
        main 'net.minecraftforge.fml.LaunchTesting'
        args 'nogui'
        systemProperties = [
                "mc.version": "${MC_VERSION}",
                "mcp.version": "${MCP_VERSION}",
                "forge.version": "${project.version.substring(MC_VERSION.length() + 1)}",
                "forge.spec":"${SPEC_VERSION}",
                "forge.group": project.group
        ]
        environment target:'fmldevserver'
        workingDir 'runserver'
        standardInput = System.in
    }
    
    def extraTxts = [
        rootProject.file('CREDITS.txt'),
        rootProject.file('LICENSE.txt')
    ]
    
    def changelog = rootProject.file('build/changelog.txt')
    if (changelog.exists())
        extraTxts += changelog
    
    task downloadCrowdin() {
        ext {
            output = file('build/crowdin_raw.zip')
            update = file('build/crowdin.json')
            id = 'minecraft-forge'
        }
        onlyIf {
            project.hasProperty('crowdinKey') && !project.gradle.startParameter.isOffline()
        }
        doLast {
            download {
                src "https://api.crowdin.com/api/project/${id}/export?key=${project.crowdinKey}&json"
                dest update
                overwrite true
            }
            if (!update.text.contains('success')) {
                throw new RuntimeException("Crowdin export failed, see ${update} for more info")
            }
            download {
                src "https://api.crowdin.com/api/project/${id}/download/all.zip?key=${project.crowdinKey}"
                dest output
                overwrite true
            }
        }
    }
    
    task crowdin(type: Zip) {
        dependsOn downloadCrowdin
        onlyIf {
            !downloadCrowdin.state.skipped
        }
        baseName = project.name
        version = project.version
        classifier = 'crowdin'
        destinationDir = file('build/distributions')
        from(zipTree(downloadCrowdin.output)){
            eachFile { //Tired of waiting for crowdin API, rename things myself. Remove once crowdin stops being dumb
                    if (it.name.equals('en_us.json') && !it.path.startsWith('assets/')) {
                        it.name = it.path.split('/')[0] + '.json'
                        it.path = 'assets/forge/lang/' + it.name
                    }
                }
                exclude { it.isDirectory() }
                rename { it.toLowerCase() }//Minecraft needs it lowercase.
                exclude '**/*.lang' //Pre-1.13 format
            }
        }
    
    // We apply the bin patches we just created to make a jar that is JUST our changes
    task applyClientBinPatches(type: ApplyBinPatches, dependsOn: genClientBinPatches) {
        clean = { genClientBinPatches.cleanJar }
        input = genClientBinPatches.output
    }
    task applyServerBinPatches(type: ApplyBinPatches, dependsOn: genServerBinPatches) {
        clean = { genServerBinPatches.cleanJar }
        input = genServerBinPatches.output
    }
    task applyJoinedBinPatches(type: ApplyBinPatches, dependsOn: genJoinedBinPatches) {
        clean = { genJoinedBinPatches.cleanJar }
        input = genJoinedBinPatches.output
    }
    // Checksum tasks so that we can know if the vanilla classes are what we expect them to do!
    task clientBaseChecksum(type: ArchiveChecksum, dependsOn: genClientBinPatches) {
        input = { genClientBinPatches.cleanJar} //Lazy because Patcher Plugin sets the value afterEvaluate
        name = 'client'
    }
    task serverBaseChecksum(type: ArchiveChecksum, dependsOn: genServerBinPatches) {
        input = { genServerBinPatches.cleanJar }
        name = 'server'
    }
    task joinedBaseChecksum(type: ArchiveChecksum, dependsOn: genJoinedBinPatches) {
        input = { genJoinedBinPatches.cleanJar }
        name = 'joined'
    }
    task clientPatchedChecksum(type: ArchiveChecksum, dependsOn: applyClientBinPatches) {
        input = applyClientBinPatches.output
        name = 'client_patched'
    }
    task serverPatchedChecksum(type: ArchiveChecksum, dependsOn: applyServerBinPatches) {
        input = applyServerBinPatches.output
        name = 'server_patched'
    }
    task joinedPatchedChecksum(type: ArchiveChecksum, dependsOn: applyJoinedBinPatches) {
        input = applyJoinedBinPatches.output
        name = 'joined_patched'
    }
    // Utility methods for testing checksums
    task cleanChecksums() {
        ['client', 'server', 'joined'].each { side ->
            ['Base', 'Patched'].each { type -> 
                def clean = "clean${side.capitalize()}${type}Checksum"
                dependsOn(clean)
                tasks.findByName("${side}${type}Checksum").mustRunAfter(clean)
            }
        }
    }
    task checksums() {
        ['client', 'server', 'joined'].each { side ->
            ['Base', 'Patched'].each { type -> 
                dependsOn("${side}${type}Checksum")
            }
        }
    }
    
    task launcherJson(dependsOn: 'signUniversal') {
        inputs.file universalJar.archivePath
        ext {
            output = file('build/version.json')
            vanilla = project(':mcp').file('build/mcp/downloadJson/version.json')
            timestamp = dateToIso8601(new Date())
            comment = [
                "Please do not automate the download and installation of Forge.",
                "Our efforts are supported by ads from the download page.",
                "If you MUST automate this, please consider supporting the project through https://www.patreon.com/LexManos/"
            ]
            def idx = project.version.indexOf('-')
            id = project.version.substring(0, idx) + "-${project.name}" + project.version.substring(idx)
        }
        inputs.file vanilla
        outputs.file output
        doLast {
            def json_vanilla = new JsonSlurper().parseText(vanilla.text)
            def json = [            
                _comment_: comment,
                id: id,
                time: timestamp,
                releaseTime: timestamp,
                type: 'release',
                mainClass: 'cpw.mods.modlauncher.Launcher',
                inheritsFrom: MC_VERSION,
                logging: [ client: [
                        argument: '-Dlog4j.configurationFile=${path}',
                        file: [
                                id:'client-1.12.xml',
                                sha1:'ef4f57b922df243d0cef096efe808c72db042149',
                                size:877,
                                url:'https://launcher.mojang.com/v1/objects/ef4f57b922df243d0cef096efe808c72db042149/client-1.12.xml'
                        ],
                        type: 'log4j2-xml'
                ]],
                arguments: [
                    game: ['--launchTarget', 'fmlclient']
                ],
                libraries: [
                    [
                        name: "${project.group}:${project.name}:${project.version}",
                        downloads: [
                            artifact: [
                                path: "${project.group.replace('.', '/')}/${project.name}/${project.version}/${project.name}-${project.version}.jar",
                                url: "", //Do not include the URL so that the installer/launcher won't grab it. This is also why we don't have the universal classifier
                                sha1: sha1(universalJar.archivePath),
                                size: universalJar.archivePath.length()
                            ]
                        ]
                    ] 
                ]
            ]
            
            def artifacts = getArtifacts(project, project.configurations.installer, false)
            artifacts.each { key, lib ->
                json.libraries.add(lib)
            }
            
            output.text = new JsonBuilder(json).toPrettyString()
        }
    }
      
    task installerJson(dependsOn: [launcherJson, genClientBinPatches, applyClientBinPatches, applyServerBinPatches]) {
        ext {
            output = file('build/install_profile.json')
            INSTALLER_TOOLS = 'net.minecraftforge:installertools:1.0.3'
            JAR_SPLITTER = 'net.minecraftforge:jarsplitter:1.0.4'
        }
        doFirst {
            ext.BIN_PATCHER = 'net.minecraftforge:binarypatcher:' + genClientBinPatches.resolvedVersion
        }
        inputs.file applyClientBinPatches.output
        inputs.file applyServerBinPatches.output
        inputs.file genClientBinPatches.toolJar
        inputs.file launcherJson.output
        outputs.file output
        doLast {
            def libs = [:]
            def json = [
                _comment_: launcherJson.comment,
                spec: 0,
                profile: project.name,
                version: launcherJson.id,
                json: '/version.json',
                path: "${project.group}:${project.name}:${project.version}",
                logo: '/big_logo.png',
                minecraft: MC_VERSION,
                welcome: "Welcome to the simple ${project.name.capitalize()} installer.",
                data: [
                    MAPPINGS: [
                        client: "[${MCP_ARTIFACT.group}:${MCP_ARTIFACT.name}:${MCP_ARTIFACT.version}:mappings@txt]",
                        server: "[${MCP_ARTIFACT.group}:${MCP_ARTIFACT.name}:${MCP_ARTIFACT.version}:mappings@txt]"
                    ],
                    BINPATCH: [
                        client: '/data/client.lzma',
                        server: '/data/server.lzma'
                    ],
                    MC_SLIM: [
                        client: "[net.minecraft:client:${MC_VERSION}:slim]",
                        server: "[net.minecraft:server:${MC_VERSION}:slim]"
                    ],
                    MC_SLIM_SHA: [
                        client: "'${sha1(tasks.getByName('downloadClientSlim').output)}'",
                        server: "'${sha1(tasks.getByName('downloadServerSlim').output)}'"
                    ],
                    MC_DATA: [
                        client: "[net.minecraft:client:${MC_VERSION}:data]",
                        server: "[net.minecraft:server:${MC_VERSION}:data]"
                    ],
                    MC_DATA_SHA: [
                        client: "'${sha1(tasks.getByName('downloadClientData').output)}'",
                        server: "'${sha1(tasks.getByName('downloadServerData').output)}'"
                    ],
                    MC_EXTRA: [
                        client: "[net.minecraft:client:${MC_VERSION}:extra]",
                        server: "[net.minecraft:server:${MC_VERSION}:extra]"
                    ],
                    MC_EXTRA_SHA: [
                        client: "'${sha1(tasks.getByName('downloadClientExtra').output)}'",
                        server: "'${sha1(tasks.getByName('downloadServerExtra').output)}'"
                    ],
                    MC_SRG: [
                        client: "[net.minecraft:client:${MC_VERSION}-${MCP_VERSION}:srg]",
                        server: "[net.minecraft:server:${MC_VERSION}-${MCP_VERSION}:srg]"
                    ],
                    PATCHED: [
                        client: "[${project.group}:${project.name}:${project.version}:client]",
                        server: "[${project.group}:${project.name}:${project.version}:server]"
                    ],
                    PATCHED_SHA: [
                        client: "'${sha1(applyClientBinPatches.output)}'",
                        server: "'${sha1(applyServerBinPatches.output)}'"
                    ]
                ],
                processors: [
                    [
                        jar: INSTALLER_TOOLS,
                        classpath: getClasspath(project, libs, INSTALLER_TOOLS),
                        args: [
                            '--task', 'MCP_DATA',
                            '--input', "[${MCP_ARTIFACT.descriptor}]",
                            '--output', '{MAPPINGS}',
                            '--key', 'mappings'
                        ]
                    ], [
                        jar: JAR_SPLITTER,
                        classpath: getClasspath(project, libs, JAR_SPLITTER),
                        args: [
                            '--input', '{MINECRAFT_JAR}',
                            '--slim',  '{MC_SLIM}',
                            '--data',  '{MC_DATA}',
                            '--extra', '{MC_EXTRA}',
                            '--srg', '{MAPPINGS}'
                        ],
                        outputs: [
                            '{MC_SLIM}': '{MC_SLIM_SHA}',
                            '{MC_DATA}': '{MC_DATA_SHA}',
                            '{MC_EXTRA}': '{MC_EXTRA_SHA}'
                        ]
                    ], [ // SpecialSource has a bug where it won't create the nessasary directories, remove when they fix that.
                        jar: INSTALLER_TOOLS,
                        classpath: getClasspath(project, libs, INSTALLER_TOOLS),
                        args: [
                            '--task', 'CREATE_PARENTS',
                            '--target', '{MC_SRG}'
                        ]
                    ], [
                        jar: 'net.md-5:SpecialSource:1.8.3',
                        classpath: getClasspath(project, libs, 'net.md-5:SpecialSource:1.8.3'),
                        args: [
                            '--in-jar', '{MC_SLIM}',
                            '--out-jar', '{MC_SRG}',
                            '--srg-in', '{MAPPINGS}'
                        ]
                    ], [
                        jar: BIN_PATCHER,
                        classpath: getClasspath(project, libs, BIN_PATCHER),
                        args: [
                            '--clean', '{MC_SRG}',
                            '--output', '{PATCHED}',
                            '--apply', '{BINPATCH}'
                        ],
                        outputs: [
                            '{PATCHED}': '{PATCHED_SHA}'
                        ]
                    ]
                ]
            ]
            getClasspath(project, libs, MCP_ARTIFACT.descriptor) //Tell it to download mcp_config
            json.libraries = libs.values().sort{a,b -> a.name.compareTo(b.name)}
            
            output.text = new JsonBuilder(json).toPrettyString()
        }
    }
    
    ['client', 'server'].each { side ->
        ['slim', 'extra', 'data'].each { type -> 
            def name = "download${side.capitalize()}${type.capitalize()}"
            task "${name}"(type: DownloadMavenArtifact) {
                artifact = "net.minecraft:${side}:${MC_VERSION}:${type}"
            }
            installerJson.dependsOn(name)
            installerJson.inputs.file(tasks.getByName(name).output)
        }
    }
    
    universalJar {
        from extraTxts
        
        /* TODO: Annotation Cache? need to talk to cpw about his new design.
        from(fixAnnotationsJson){
            into 'META-INF'
        }
        dependsOn fixAnnotationsJson
        */
        
        // Add checksum files of clean and patched vanilla classes.
        ['client', 'server'].each { side ->
            ['Base', 'Patched'].each { type -> 
                from(tasks.getByName("${side}${type}Checksum").output) {
                    into 'checksums/'
                }
            }
        }
        dependsOn checksums
        
        // add crowdin locales
        from { !crowdin.state.skipped ? zipTree(crowdin.archivePath) : null}
        dependsOn crowdin

        doFirst {
            def classpath = new StringBuilder()
            def artifacts = getArtifacts(project, project.configurations.installer, false)
            artifacts.each { key, lib ->
                classpath += "libraries/${lib.downloads.artifact.path} "
            }
            classpath += "libraries/net/minecraft/server/${MC_VERSION}/server-${MC_VERSION}-data.jar "
            classpath += "libraries/net/minecraft/server/${MC_VERSION}/server-${MC_VERSION}-extra.jar"
            
            
            manifest.attributes([
                'Main-Class': 'net.minecraftforge.server.ServerMain',
                'Timestamp': new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
                'GitCommit': grgit.head().getAbbreviatedId(8),
                'Git-Branch': grgit.branch.current().getName(),
                'Class-Path': classpath.toString()
            ] as LinkedHashMap)
            manifest.attributes([
                'Specification-Title':      'Forge',
                'Specification-Vendor':     'Forge Development LLC',
                'Specification-Version':    SPEC_VERSION,
                'Implementation-Title':     project.group,
                'Implementation-Version':   project.version.substring(MC_VERSION.length() + 1),
                'Implementation-Vendor':    'Forge Development LLC'
            ] as LinkedHashMap, 'net/minecraftforge/versions/forge/')
            manifest.attributes([
                'Specification-Title':      'Minecraft',
                'Specification-Vendor':     'Mojang',
                'Specification-Version':    MC_VERSION,
                'Implementation-Title':     'MCP',
                'Implementation-Version':   MCP_VERSION,
                'Implementation-Vendor':    'Forge'
            ] as LinkedHashMap, 'net/minecraftforge/versions/mcp/')
            // manifest entry for FML @Mod
            manifest.attributes([
                    'Specification-Title':      'Mod Language Provider',
                    'Specification-Vendor':     'Forge Development LLC',
                    'Specification-Version':    '1',
                    'Implementation-Title':     'FML Java Mod',
                    'Implementation-Version':   SPEC_VERSION,
                    'Implementation-Vendor':    'Forge'
            ] as LinkedHashMap, 'net/minecraftforge/fml/javafmlmod/')
        }
    }

    task fmllauncherJar(type: Jar) {
        from sourceSets.fmllauncher.output
        doFirst {
            manifest.attributes([
                    'Specification-Title'   : 'Forge',
                    'Specification-Vendor'  : 'Forge Development LLC',
                    'Specification-Version' : SPEC_VERSION,
                    'Implementation-Title'  : project.group,
                    'Implementation-Version': project.version.substring(MC_VERSION.length() + 1),
                    'Implementation-Vendor' : 'Forge Development LLC'
            ] as LinkedHashMap, 'net/minecraftforge/versions/forge/')
            manifest.attributes([
                    'Specification-Title'   : 'Minecraft',
                    'Specification-Vendor'  : 'Mojang',
                    'Specification-Version' : MC_VERSION,
                    'Implementation-Title'  : 'MCP',
                    'Implementation-Version': MCP_VERSION,
                    'Implementation-Vendor' : 'Forge'
            ] as LinkedHashMap, 'net/minecraftforge/versions/mcp/')
        }
    }

    task signUniversal(type: SignJar, dependsOn: universalJar) {
        onlyIf {
            JAR_SIGNER != null && universalJar.state.failure == null
        }

        def jarsigner = JAR_SIGNER == null ? [:] : JAR_SIGNER
        alias = 'forge'
        storePass = jarsigner.storepass
        keyPass = jarsigner.keypass
        keyStore = jarsigner.keystore
        inputFile = universalJar.archivePath
        outputFile = universalJar.archivePath
        doFirst {
            project.logger.lifecycle('Signing: ' + inputFile)
        }
    }
    universalJar.finalizedBy(signUniversal)
    
    task downloadInstaller(type: DownloadMavenArtifact) {
        artifact = 'net.minecraftforge:installer:2.0.+:shrunk'
        changing = true
    }
    
    task installerJar(type: Zip, dependsOn: [downloadInstaller, signUniversal, installerJson, launcherJson, genClientBinPatches, genServerBinPatches]) {
        classifier = 'installer'
        extension = 'jar' //Needs to be Zip task to not override Manifest, so set extension
        destinationDir = file('build/libs')
        from(extraTxts)
        from(rootProject.file('/src/main/resources/forge_logo.png')) {
            rename{'big_logo.png'}
        }
        from(rootProject.file('/src/main/resources/url.png'))
        from(genClientBinPatches.output) {
            rename{'data/client.lzma'}
        }
        from(genServerBinPatches.output) {
            rename{'data/server.lzma'}
        }
        from(universalJar) {
            into "/maven/${project.group.replace('.', '/')}/${project.name}/${project.version}/"
            rename { "${project.name}-${project.version}.jar" }
        }
        from(installerJson.output)
        from(launcherJson.output)
        from(zipTree(downloadInstaller.output)) {
            duplicatesStrategy = 'exclude'
        }
    }
    task signInstaller(type: SignJar, dependsOn: installerJar) {
        onlyIf {
            JAR_SIGNER != null && installerJar.state.failure == null
        }

        def jarsigner = JAR_SIGNER == null ? [:] : JAR_SIGNER
        alias = 'forge'
        storePass = jarsigner.storepass
        keyPass = jarsigner.keypass
        keyStore = jarsigner.keystore
        inputFile = installerJar.archivePath
        outputFile = installerJar.archivePath
        doFirst {
            project.logger.lifecycle('Signing: ' + inputFile)
        }
    }
    installerJar.finalizedBy(signInstaller)
    
    task makeMdk(type: Zip) {
        baseName = project.name
        classifier = 'mdk'
        version = project.version
        destinationDir = file('build/libs')

        from rootProject.file('gradlew')
        from rootProject.file('gradlew.bat')
        from extraTxts
        from(rootProject.file('gradle/')){
            into('gradle/')
        }
        from(rootProject.file('mdk/')){
            rootProject.file('mdk/gitignore.txt').eachLine{
                if (!it.trim().isEmpty() && !it.trim().startsWith('#'))
                    exclude it
            }
            filter(ReplaceTokens, tokens: [
                FORGE_VERSION: project.version,
                FORGE_GROUP: project.group,
                FORGE_NAME: project.name,
                MC_VERSION: MC_VERSION,
                MAPPING_CHANNEL: MAPPING_CHANNEL,
                MAPPING_VERSION: MAPPING_VERSION
            ])
            rename 'gitignore\\.txt', '.gitignore'
        }
    }
    
    userdevConfig {
        def artifacts = getArtifacts(project, project.configurations.installer, true)
        artifacts.each { key, lib ->
            addLibrary(lib.name)
        }
    }
    
    license {
        header = file("$rootDir/LICENSE-header.txt")

        include 'net/minecraftforge/'
        exclude 'net/minecraftforge/server/terminalconsole/'
        exclude 'net/minecraftforge/api/' // exclude API here because it's validated in the SPI build
        exclude 'net/minecraftforge/fml/common/versioning/ComparableVersion.java'
        exclude 'net/minecraftforge/fml/common/versioning/InvalidVersionSpecificationException.java'
        exclude 'net/minecraftforge/fml/common/versioning/Restriction.java'
        exclude 'net/minecraftforge/fml/common/versioning/VersionRange.java'

        tasks {
            main {
                files = files("$rootDir/src/main/java")
            }
            test {
                files = files("$rootDir/src/test/java")
            }
        }
    }

    task userdevExtras(type:Jar) {
        dependsOn classes
        from sourceSets.userdev.output
        classifier 'userdev-temp'
    }

    task userdevExtrasReobf(type:TaskReobfuscateJar) {
        dependsOn userdevExtras, createMcp2Srg
        input = tasks.userdevExtras.archivePath
        classpath = project.configurations.getByName("compile")
        srg = tasks.createMcp2Srg.output
    }

    userdevJar {
        dependsOn userdevExtrasReobf
        from (zipTree(tasks.userdevExtrasReobf.output)) {
            into '/inject/'
        }
        from (sourceSets.userdev.output.resourcesDir) {
            into '/inject/'
        }
    }

    applyRangeMap {
        setSources sourceSets.userdev.java.srcDirs.findAll({f -> (f != patcher.patchedSrc) })
    }
    
    publishing {
        publications {
            mavenJava(MavenPublication) {
                artifact universalJar
                if (changelog.exists()) {
                    artifact(changelog) {
                        classifier = 'changelog'
                    }
                }
                artifact installerJar
                //TODO: installer-win
                artifact makeMdk
                artifact userdevJar
                artifact sourcesJar
                artifact fmllauncherJar

                pom {
                    name = 'forge'
                    description = 'Modifactions to Minecraft to enable mod developers.'
                    url = 'https://github.com/MinecraftForge/MinecraftForge'

                    scm {
                        url = 'https://github.com/MinecraftForge/MinecraftForge'
                        connection = 'scm:git:git://github.com/MinecraftForge/MinecraftForge.git'
                        developerConnection = 'scm:git:git@github.com:MinecraftForge/MinecraftForge.git'
                    }

                    issueManagement {
                        system = 'github'
                        url = 'https://github.com/MinecraftForge/MinecraftForge/issues'
                    }

                    licenses {
                        license {
                            name = 'LGPL 2.1'
                            url = 'https://github.com/MinecraftForge/MinecraftForge/blob/1.13-pre/LICENSE.txt'
                            distribution = 'repo'
                        }
                    }
                }
            }
        }
        repositories {
            maven {
                if (project.hasProperty('forgeMavenPassword')) {
                    credentials {
                        username project.properties.forgeMavenUser
                        password project.properties.forgeMavenPassword
                    }
                    url 'https://files.minecraftforge.net/maven/manage/upload'
                } else {
                    url 'file://' + rootProject.file('repo').getAbsolutePath()
                }
            }
        }
    }
}

def dateToIso8601(date) {
    def format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
    def result = format.format(date)
    return result[0..21] + ':' + result[22..-1]
}

def sha1(file) {
    MessageDigest md = MessageDigest.getInstance('SHA-1')
    file.eachByte 4096, {bytes, size ->
        md.update(bytes, 0, size)
    }
    return md.digest().collect {String.format "%02x", it}.join()
}

def artifactTree(project, artifact) {
    if (!project.ext.has('tree_resolver'))
        project.ext.tree_resolver = 1
    def cfg = project.configurations.create('tree_resolver_' + project.ext.tree_resolver++)
    def dep = project.dependencies.create(artifact)
    cfg.dependencies.add(dep)
    def files = cfg.resolve()
    return getArtifacts(project, cfg, true)
}

def getArtifacts(project, config, classifiers) {
    def ret = [:]
    config.resolvedConfiguration.resolvedArtifacts.each {
        def art = [
            group: it.moduleVersion.id.group,
            name: it.moduleVersion.id.name,
            version: it.moduleVersion.id.version,
            classifier: it.classifier,
            extension: it.extension,
            file: it.file
        ]
        def key = art.group + ':' + art.name
        def folder = "${art.group.replace('.', '/')}/${art.name}/${art.version}/"
        def filename = "${art.name}-${art.version}"
        if (art.classifier != null)
            filename += "-${art.classifier}"
        filename += ".${art.extension}"
        def path = "${folder}${filename}"
        def url = "https://libraries.minecraft.net/${path}"
        if (!checkExists(url)) {
            url = "https://files.minecraftforge.net/maven/${path}"
        }
        //TODO remove when Mojang launcher is updated
        if (!classifiers && art.classifier != null) { //Mojang launcher doesn't currently support classifiers, so... move it to part of the version, and force the extension to 'jar'
            art.version = "${art.version}-${art.classifier}"
            art.classifier = null
            art.extension = 'jar'
            path = "${art.group.replace('.', '/')}/${art.name}/${art.version}/${art.name}-${art.version}.jar"
        }
        ret[key] = [
            name: "${art.group}:${art.name}:${art.version}" + (art.classifier == null ? '' : ":${art.classifier}") + (art.extension == 'jar' ? '' : "@${art.extension}"),
            downloads: [
                artifact: [
                    path: path,
                    url: url,
                    sha1: sha1(art.file),
                    size: art.file.length()
                ]
            ]
        ]
    }
    return ret
}

def checkExists(url) {
    def code = new URL(url).openConnection().with {
        requestMethod = 'HEAD'
        connect()
        responseCode
    }
    return code == 200
}

def getClasspath(project, libs, artifact) {
    def ret = []
    artifactTree(project, artifact).each { key, lib ->
        libs[lib.name] = lib
        if (lib.name != artifact)
            ret.add(lib.name)
    }
    return ret
}

//evaluationDependsOnChildren()
task setup() {
    dependsOn ':clean:extractMapped'
    dependsOn ':forge:extractMapped' //These must be strings so that we can do lazy resolution. Else we need evaluationDependsOnChildren above
}