import static uk.co.nickthecoder.foocad.changefilament.v1.ChangeFilament.*

/**
    Creates raised text, with a background.
    The background follows the shape of the text, but also has a guarenteed solid
    part running through it (the height of a lower case "e").

    The result is that the outline looks pleasing, and yet a strip of double sided
    tape is 100% obscured, regardless of the text.

Print Notes
    Print using two colours. I've added a beep and message when it is time to change
    the filament (assuming "filamentOffset" matches your printer)
*/
class DrawerLabel : Model, PostProcessor {
    
    @Custom( lines=10 )
    var words = "5mm LEDs\n3mm LEDs\nOther LEDs\nModules\nResistors\nCapacitors\n" +
        "Transistors\nChips\nHeat Shrink\nConnectors"

    @Custom
    var thickness = 0.6

    @Custom
    var raised = 0.6

    @Custom
    var offset = 0.8

    @Custom
    var style = TextStyle(BOLD, 10.0)

    override fun build() : Shape3d {

        val shapes = listOf<Shape3d>()
        val lowerCaseHeight = Text("e", style ).toPolygon().size.y

        val lines = words.split("\n")
        var y = 0
        for (line in lines ) {
            val text = Text( line, style )
                .toPolygon()
                .centerX()
                .color("Black")
            val outline = (
                text.nonHoles().offset( offset ) +
                Square( text.size.x-5, lowerCaseHeight )
                    .centerX()
            ).color("White")

            val both = (
                outline.extrude(thickness) +
                text.extrude(raised).translateZ(thickness)
            ).toOriginY().translateY(y)
            shapes.add( both )
            y += outline.size.y + 2
        }
    
       
        return Union3d( shapes )
    }

    // This is the main focus of this example! Also not that the class must implement PostProcessor.
    override fun postProcess(gcode: GCode) {
        gcode.pauseAtHeight( thickness, "Change filament" )
    }
}