package uk.co.nickthecoder.foocad.woodworking.v1

class Woodworking {

    // Values suitable for the `side` parameter when creating joints.
    // See [PieceOfWood].lap( side ) etc.
    class val FACE_SIDE = 0
    class val FACE_EDGE = 1
    class val END_GRAIN = 2
    class val OPPOSITE_SIDE = 3
    class val OPPOSITE_EDGE = 4
    class val START_GRAIN = 5

    // The side we need to start cutting a groove from in order for the groove
    // to appear on the side required.
    class val _grooveSide = intArrayOf(
        END_GRAIN,
        FACE_SIDE,
        FACE_EDGE,
        START_GRAIN,
        OPPOSITE_SIDE,
        OPPOSITE_EDGE
    )

    func Wood( name : String, width : double, thickness : double ) =
        Wood( name, Square( width, thickness ) )

    func Wood( name : String, width : double, thickness : double, color : String ) =
        Wood( name, Square( width, thickness ).color( color ) )

    
    func Plywood( name : String, thickness : double ) =
        Plywood( name, thickness, Color.valueOf("Khaki") )


    func Plywood( name : String, thickness : double, color : String ) =
        Plywood( name, thickness, Color.valueOf(color) )



    func mitreShape( size : double ) = PolygonBuilder().apply {
        moveTo(0,0)
        lineTo( 0, size )
        lineTo( size, 0 )
        lineTo( 0,0 )
    }.build()

    func mitreShape( size : double, angle : double ) = PolygonBuilder().apply {
        moveTo(0,0)
        lineTo( 0, size / Math.tan(angle * Math.PI / 180.0) )
        lineTo( size, 0 )
        lineTo( 0,0 )
    }.build()

    /**
     * An isosceles Triangle with width=[depth]*2 and height=[depth]
     */
    func vGrooveShape( depth : double ) = PolygonBuilder().apply {
        moveTo( -depth, 0 )
        lineTo(  0,     depth )
        lineTo(  depth, 0 )
        lineTo( -depth, 0 )
    }.build()

    func roundedShape( radius : double ) = (Square( radius + 0.1 ) - Circle( radius ))
        .rotate(180).toOrigin()
        .margin( -0.1 )


    func mortiseShape( wood : Wood, marginX : double, marginY : double ) : Shape2d {
        return Square( wood.width - marginX * 2, wood.thickness - marginY * 2 )
            .translate( marginX, marginY )
            .margin( marginX, marginY )
    }

    func tenonShape( wood : Wood, marginX : double, marginY : double ) : Shape2d {
        return Square( wood.width, wood.thickness ) - mortiseShape( wood, marginX, marginY )
    }

    class var showCutouts = false
    func debugCutout( shape : Shape3d ) : Shape3d = if (showCutouts) shape.previewOnly() else null

}