import uk.co.nickthecoder.foocad.extras.v1.*
import static uk.co.nickthecoder.foocad.extras.v1.Extras.*
import static uk.co.nickthecoder.foocad.layout.v1.Layout2d.*
import static uk.co.nickthecoder.foocad.layout.v1.Layout3d.*
class SnailKiller : Model {

    @Custom
    var size = Vector3( 60, 50, 40 )

    @Custom
    var thickness = 2

    @Custom( about="Diameter and height of the nail's head" )
    var nailHeadSize = Vector2( 4, 1 )

    @Custom
    var nailSpacing = 7

    @Custom
    var clearance = 0.5

    meth layoutNails( shape : Shape2d ) : Shape2d {

        val across : int = size.x / nailSpacing
        val down : int = size.y / nailSpacing

        val evenLine = shape.repeatX( across, nailSpacing )
            .centerX()
        val oddLine = shape.repeatX( across-1, nailSpacing )
            .centerX()
            .translateY( nailSpacing )

        return (evenLine + oddLine)
            .repeatY( down/2, nailSpacing*2 )
            .center()
    }

    meth nailHolderShape() : Shape2d {
        return Square( size.x, size.y )
            .roundAllCorners(1)
            .center()
    }

    meth nailHolderCorners() : Shape2d {
        val square = nailHolderShape()

        return Triangle( 4, 4 )
            .leftTo( square.left )
            .frontTo( square.front )
            .intersection( square )
            .mirrorX().also().mirrorY().also()
    }

    meth nailHolder() : Shape3d {

        val square = nailHolderShape()

        val plate = square
            .extrude( thickness*2 )

        val corners = nailHolderCorners()
            .extrude( thickness )
            .bottomTo( plate.top )

        val headHoles = layoutNails(
                Circle( nailHeadSize.x/2 )
            )
            .extrude( nailHeadSize.y )
            .topTo( plate.top + 0.01 )

        val holes = layoutNails(
                Circle( 1 )
            )
            .extrude( plate.size.z + 2 )
            .topTo( plate.top + 1 )

        return plate - headHoles - holes + corners
    }

    meth nailHolderLid() : Shape3d {
        val square = nailHolderShape()
        val corners = nailHolderCorners().offset(clearance)

        return (square - corners).extrude(thickness)
    }

    override fun build() : Shape3d {

        val nailHolder = nailHolder()
            .color("Green")

        val nailHolderLid = nailHolderLid()
            .topTo( nailHolder.top )
            .color("LightGreen")

        val nails = layoutNails(
                Circle( 1 )
            )
            .extrude( 30 )
            .topTo( nailHolderLid.bottom )
            .previewOnly()

        return nailHolder + nailHolderLid + nails
    }

}