(loadFrom "nat-archive-tool" "src/nat/Lib.kiss")

(method &override :Void create []
    (super.create)
    // TODO find a better way to pass the archiveDir to a HaxeFlixel game
    (let [archiveDir (or (Sys.getEnv "NAT_DIR") (throw "NAT_DIR environment variable must be set"))]
        (new ArchiveController
            (new Archive archiveDir)
            this))

    (add messages)

    // TODO make a button that can be clicked to run typeCommand()        
    // TODO make sprites for entries that have images
    )

(method &override :Void update [:Float elapsed]
    (super.update elapsed)
    
    // Press ENTER to type a command to run
    (when (and !textInput FlxG.keys.justPressed.ENTER)
        (typeCommand))
    (when (and textInput !textInput.alive)
        (set textInput.callback null)
        (set textInput null)))

(method :Void typeCommand []
    (enterText
        "command to run"
        ->commandName (controller.tryRunCommand commandName)
        Math.POSITIVE_INFINITY))

(prop &mut :ArchiveController controller)

(method :Void setController [controller] (set this.controller controller))

(prop &mut :FlxInputText textInput null)

(method :Void enterText [prompt resolve maxLength]
    (set textInput (new FlxInputText 0 0 300 prompt))
    (textInput.screenCenter)
    (set textInput.callback
        ->:Void [text action]
            (case [text action]
                ([text FlxInputText.ENTER_ACTION]
                    (textInput.kill)
                    (resolve text))
                (otherwise {})))
    (add textInput))
    
(method :Void enterNumber [prompt resolve min max &opt inStepsOf]
    (resolve 0))

(method :Void chooseEntry [prompt :Archive archive resolve]
    (resolve null))

(method :Void chooseEntries [prompt archive resolve min max]
    (_chooseEntries prompt archive resolve min max []))

// TODO is it possible to resolve with less than max?
(method :Void _chooseEntries [prompt archive resolve min max :Array<Entry> collectedEntries]
    (let [&mut :Void->Void chooseNextEntry
                null
            _chooseNextEntry
                ->:Void {(chooseEntry
                                prompt
                                archive
                                ->:Void e {(collectedEntries.push e)
                                                // If the maximum is reached, return it
                                                (if (= max collectedEntries.length)
                                                        (resolve collectedEntries)
                                                    // Otherwise, recurse
                                                    (chooseNextEntry))})}]
        (set chooseNextEntry _chooseNextEntry)
        (_chooseNextEntry)))

        
(method handleChanges [:Archive archive :ChangeSet changeSet]
    (doFor e changeSet
        (print (archive.fullString e))))

(prop &mut :Int messageY 0)
(prop :FlxGroup messages (new FlxGroup))
(method :Void displayMessage [message]
    (messages.add (new FlxText 0 messageY 0 message))
    (+= messageY 8))

(method :Void reportError [error] 
    (let [text (new FlxText 0 messageY 0 error)]
        (text.setFormat null 8 FlxColor.RED)
        (messages.add text)
        (+= messageY 8)))