package gradle

import texteditor.TextEditorBehaviour
import feathereditor.*

/**
 * Secondary tabs, consisting of :
 *     build.gradle.kts (top-level)
 *     settings.gradle
 *     gradle.properties
 *     build.gradle.kts for all subprojects
 *     A tree containing gradle tasks for this project (as reported by `gradlew tasks`)
 *         The leaves of the tree have a context-type of "GradleTask".
 */
class GradleGroupBehaviour(

    val folder: File
    
) : GroupBehaviour( "Gradle", Context(Context.FOLDER, folder) ), Savable, SaveListener {

    val tasksBehaviour = GradleTasksBehaviour( folder )

    val metabuildFile = File( folder, "metabuild.feather" )

    init {
        description = folder.path
        iconName = "gradle"

        if (metabuildFile.exists()) {
            secondaryBehaviours.add( FeatherTextEditor(metabuildFile) )
        }
        // Look for the top-level build script
        addGradleFile(File(folder, "build.gradle"))
        addGradleFile(File(folder, "build.gradle.kts"))

        // Look for additional gradle-related files
        addGradleFile(File(folder, "settings.gradle"))
        addGradleFile(File(folder, "gradle.properties"))

        // Look for subproject build files.
        for (subFolder in folder.folders()) {
            addGradleFile(File(subFolder, "build.gradle"))
            addGradleFile(File(subFolder, "build.gradle.kts"))
        }

        secondaryBehaviours.add(tasksBehaviour)

    }

    override meth toolbar() : List<Feature> {
        if ( metabuildFile.exists() ) {
            return listOf<Feature>(
                Action( "Meta Build", this:>metaBuild )
            )
        }
        return listOf<Feature>()
    }

    meth metaBuild() {
        $( ./metabuild.feather ).dir( folder ).runToTextBehaviour( "metabuild" ).openBehaviour()
    }

    /**
     * If [file] isn't found (or isn't a file), then do nothing.
     * Otherwise, it adds a TextTab to `secondaryTabPane`.
     */
    meth addGradleFile(file: File) {
        if (file.isFile()) {
            
            val textEditor = TextEditorBehaviour( file )
            if (file.name.startsWith("build.gradle")) {
                textEditor.title = file.parentFile.name
            }

            secondaryBehaviours.add(textEditor)
        }
    }

    /**
     * When any of the build scripts are saved, we also rebuild the [tasksTab].
     */
    override meth onSaved() {
        tasksBehaviour.refresh()
    }
    
}