class ConfigurationModel : ItemViewModel<Configuration>() {

	val configurationName = bind { item?.configurationNameProperty() }
	val isMontereyRequired = bind { item?.isMontereyRequiredProperty() }
	val cxxiBaseArchive = bind { item?.cxxiBaseArchiveProperty() }
	val montereyArchive = bind { item?.montereyArchiveProperty() }
	val jreHome = bind { item?.jreHomeProperty() }

	// Validation rules prevent committing an unbuildable configuration
	val buildable
		get() = { dirty.not() }

	// has this config been built and is ready to use?
	val ready
		get() = {
			// always check build and output directories
			cxxiBaseOkay.invalidate()
			montereyInstallOkay.invalidate()
			outDirOkay.invalidate()

			dirty.not().and(cxxiBaseOkay).and(montereyInstallOkay).and(outDirOkay)
		}

	private val cxxiBaseOkay = booleanBinding(configurationName, configurationName) {
		val preferences = find<ToolboxPreferencesModel>()
		val path = "${preferences.cxxiModelsLocation.value}/${value}/cxxi"
		val result = File(path).exists()
		result
	}

	private val outDirOkay = booleanBinding(configurationName, configurationName) {
		val preferences = find<ToolboxPreferencesModel>()
		val path = "${preferences.toolboxProjectsLocation.value}/${value}/OUTPUT"
		val result = File(path).exists()
		result
	}
	
	private val montereyInstallOkay = booleanBinding(configurationName, configurationName) {
		val preferences = find<ToolboxPreferencesModel>()
		val path = "${preferences.cxxiModelsLocation.value}/${value}/cxxi/lib/monterey-extensions.jar"
		val result = if (isMontereyRequired.value) File(path).exists() else true
		result
	}
}