buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath "org.jetbrains.dokka:dokka-gradle-plugin:0.9.17"
        classpath "com.netflix.nebula:nebula-kotlin-plugin:1.3.72"
        classpath "com.netflix.nebula:nebula-publishing-plugin:17.0.5"
        classpath "com.netflix.nebula:nebula-release-plugin:14.1.0"
        classpath "com.github.ben-manes:gradle-versions-plugin:0.28.0"
    }
}

apply plugin: 'org.jetbrains.dokka'

project.ext {
    openrndrVersion = "0.3.42"
    kotlinVersion = "1.3.72"
    spekVersion = "2.0.10"
    libfreenectVersion = "0.5.7-1.5.3"
    gsonVersion = "2.8.6"
    antlrVersion = "4.8-1"
}

switch (org.gradle.internal.os.OperatingSystem.current()) {
    case org.gradle.internal.os.OperatingSystem.WINDOWS:
        project.ext.openrndrOS = "windows"
        break
    case org.gradle.internal.os.OperatingSystem.LINUX:
        project.ext.openrndrOS = "linux-x64"
        break
    case org.gradle.internal.os.OperatingSystem.MAC_OS:
        project.ext.openrndrOS = "macos"
        break
}

dokka {
    moduleName = "$rootProject.name"
    outputDirectory = "$buildDir/docs"
    outputFormat = "html"
    includes = ['Module.md']
    sourceDirs = files(subprojects.collect { p -> new File(p.projectDir, "/src/main/kotlin") })
}

allprojects {
    apply plugin: 'idea'
    apply plugin: 'java'
    apply plugin: 'nebula.kotlin'
    apply plugin: 'nebula.contacts'
    apply plugin: 'nebula.info'
    apply plugin: 'nebula.release'
    apply plugin: 'nebula.maven-publish'

    apply plugin: 'nebula.source-jar'
    apply plugin: 'nebula.javadoc-jar'
    apply plugin: "com.github.ben-manes.versions"

    group 'org.openrndr.extra'


    repositories {
        mavenCentral()
        jcenter()
        maven {
            url = "https://dl.bintray.com/openrndr/openrndr"
        }
        maven {
            url "https://dl.bintray.com/spekframework/spek"
        }
    }

    dependencies {
        implementation 'io.github.microutils:kotlin-logging:1.7.9'
        implementation "org.openrndr:openrndr-core:$openrndrVersion"
        implementation "org.openrndr:openrndr-filter:$openrndrVersion"
        implementation "org.openrndr:openrndr-shape:$openrndrVersion"
        implementation group: 'org.jetbrains.kotlinx', name: 'kotlinx-coroutines-core', version: '1.3.6'
        testImplementation "org.spekframework.spek2:spek-dsl-jvm:$spekVersion"
        testImplementation "org.amshove.kluent:kluent:1.61"
        testImplementation "org.jetbrains.kotlin:kotlin-test:$kotlinVersion"
        testRuntimeOnly "org.spekframework.spek2:spek-runner-junit5:$spekVersion"
        testRuntimeOnly "org.jetbrains.kotlin:kotlin-reflect:$kotlinVersion"
        runtimeOnly "org.jetbrains.kotlin:kotlin-reflect:$kotlinVersion"
    }

    java {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }

    javadoc {
        options.addBooleanOption 'Xdoclint:none', true
    }

    contacts {
        'edwin@openrndr.org' {
            moniker 'Edwin Jakobs'
            github 'edwinRNDR'
        }
    }

    test {
        useJUnitPlatform {
            includeEngines 'spek2'
        }
    }
}

task buildMainReadme {
    doFirst {
        def subProjects = project.subprojects
        //.findAll { !it.name.contains("kinect-common") && !it.name.contains
        // ("kinect-v1-") }

        // Load README.md and find [begin, end] section to replace
        def mainReadme = file("README.md")
        def lines = mainReadme.readLines()

        def begin = lines.findIndexOf { it == "<!-- __orxListBegin__ -->" }
        def end = lines.findIndexOf { it == "<!-- __orxListEnd__ -->" }
        if (begin == -1 || end == -1) {
            println("Comments for orx list generation not found in README.md!")
            return
        }

        def header = lines.subList(0, begin + 1)
        def footer = lines.subList(end, lines.size())

        def newReadme = []
        for (line in header) {
            newReadme.add(line)
        }
        newReadme.add("| name | description |")

        // Search for the description at the top of the readme.
        // Skip the hash character from the headline, then start
        // on the next line and continue until the next empty line.
        // Don't fall into Windows line breaks.
        def descriptionRx = ~/(?s)\#.*?\n(.+?)\n\r?\n/
        // Note: the readme needs an empty line after the description

        // Build orx list
        for (sub in subProjects) {
            def orxReadmeFile = sub.file("README.md")
            if (orxReadmeFile.exists()) {
                def orxReadmeText = orxReadmeFile.getText()
                orxReadmeText.find(descriptionRx) {
                    description ->
                        def trimmedDescription = description[1].strip()
                                .replace("\n", " ").replace("\r", "")
                        newReadme.add("| [`${sub.name}`](${sub.name}/README.md) " +
                                "| $trimmedDescription |")
                }

            } else {
                println("${sub.name}/README.md not found!")
            }
        }

        for (line in footer) {
            newReadme.add(line)
        }

        // Write result
        if (mainReadme.exists()) {
            mainReadme.delete()
        }
        mainReadme.write(newReadme.join("\n"))
    }
}

task collectScreenshots {
    doFirst {
        def demoProjects = project.subprojects.findAll { it.sourceSets.hasProperty("demo") }
        for (sub in demoProjects) {
            if (sub.name == "orx-rabbit-control")
                continue
            if (sub.name == "orx-runway")
                continue
            def set = sub.sourceSets.demo
            def ucl = new URLClassLoader(set.runtimeClasspath.collect { it.toURI().toURL() } as URL[])

            def runDemos = []

            for (x in set.output) {
                if (x.exists()) {
                    for (y in x.listFiles()) {
                        def name = y.name
                        if (!name.contains('$') && name.contains(".class")) {
                            def klassName = y.name.replace(".class", "")
                            def klass = ucl.loadClass(klassName)
                            try {
                                def mainMethod = klass.getMethod("main")
                                javaexec {
                                    classpath set.runtimeClasspath
                                    def className = y.name.replace(".class", "")
                                    main = className
                                    jvmArgs += "-DtakeScreenshot=true"
                                    jvmArgs += "-DscreenshotPath=${sub.name}/images/${className}.png"
                                    jvmArgs += "-Dorg.openrndr.exceptions=JVM"
                                }
                                runDemos.add(klassName)
                            } catch (e) {
                                // skip?
                            }
                        }
                    }
                }
            }
            runDemos = runDemos.sort()
            def readme = sub.file("README.md")
            if (readme.exists()) {
                def lines = readme.readLines()
                def screenshotsLine = lines.findIndexOf { it == "<!-- __demos__ -->" }
                if (screenshotsLine != -1) {
                    lines = lines.subList(0, screenshotsLine)
                }
                lines.add("<!-- __demos__ -->")
                lines.add("## Demos")
                for (demo in runDemos) {
                    lines.add("### ${demo[0..-3]}")
                    lines.add("[source code](src/demo/kotlin/${demo[0..-3]}.kt)")
                    lines.add("")
                    lines.add("![${demo}](https://raw.githubusercontent.com/openrndr/orx/media/${sub.name}/images/${demo}.png)")
                    lines.add("")
                }
                readme.delete()
                readme.write(lines.join("\n"))
            }
        }
    }
}
collectScreenshots.dependsOn {
    project.subprojects.findAll { it.sourceSets.hasProperty("demo") }.collect { it.tasks.demoClasses }
}