package runner

include RunnerForm.feather
include RunnerBehaviour.feather

class Runner : SimpleComponent() {

    class var maxHistory = 20

    // ==== Register ====

    override meth register() {

        registerRunnerPrefix( "help", "List Runner Prefixes (this list)", ::listPrefixesAction )

        addFeatures( Context.NONE ).apply {
            val openRunner = Action( "Runner", ::openRunnerAction )
                .icon("runner")

            menus( MenuFeature( "Tools", openRunner ) )
        }
    }

    // ==== Actions ====

    func openRunnerAction() {
        openBehaviour( RunnerBehaviour() )
    }

    // ==== API ====

    func runnerInput( folder : File ) : Feature {
        return StringFeature( ::runInFolder.curry(folder) )
            .description( "Run a command" )
    }

    func run( command : String ) {
        if (! invokeRunnerPrefix( command ) ) {
            openBehaviour( RunnerBehaviour( RunnerForm().apply { commandString.value = command } ) )
        }
    }
    func runInFolder( inFolder : File, command : String ) {
        if (! invokeRunnerPrefix( command ) ) {
            val form = RunnerForm().apply {
                commandString.value = command
                folder.value = inFolder
            }
            RunnerBehaviour( form ).openBehaviour()
        }
    }

    func listPrefixesAction( remainder : String ) : Boolean {
        if (remainder != "") return false

        val tb = TextBehaviour("Prefixes").apply {
            append( "Prefix          Description\n" )
            append( "-".repeat(70) )
            append( "\n" )
            for ( registered in listRunnerPrefixes() ) {
                val prefix = registered.prefix
                val pad = if (prefix.size() > 15) 0 else 15 - prefix.size()
                val spaces = " ".repeat(pad)
                append( "$prefix $spaces${registered.description}\n" )
            }
        }.openBehaviour()
        return true
    }

}