/Hardware/ShelfBracket.foocad

import uk.co.nickthecoder.foocad.smartextrusion.v1.*
import static uk.co.nickthecoder.foocad.smartextrusion.v1.SmartExtrusion.*
import uk.co.nickthecoder.foocad.screws.v3.*
import uk.co.nickthecoder.foocad.extras.v1.*
import static uk.co.nickthecoder.foocad.extras.v1.Extras.*

class PlainShelfBracket : Model {

    @Custom
    var depth = 150

    @Custom
    var width = 20

    @Custom
    var thickness = 6

    @Custom( about="How much protudes beyond the triangular support" )
    var overlap = 16

    @Custom( about="Rounding inside the triangle" )
    var round = 5

    @Custom( about="Rounding of the ends" )
    var round2 = 5

    @Custom
    var chamfer = 1

    @Custom( about="Angle of the triangular support (Usually 45° or less)" )
    var angle = 35

    meth height() =  depth * tan( angle )

    meth plainBracket() : Shape3d {

        val height = height()
        val triangle = Triangle( depth - overlap, height - overlap )
            
        val inside = triangle.offset( - thickness )
            .roundCorner( 2, round )
            .roundCorner( 1, round )
            .roundCorner( 0, round * 2 )

        val main = (triangle - inside)
            .smartExtrude(width)
                .edges( Chamfer( chamfer ) )

        val top = Square( depth, width )
            .roundCorner(2,round2)
            .roundCorner(1,round2)
            .smartExtrude( thickness )
                .bottom( Chamfer( chamfer ) )
            .rotateX(90)
            .frontTo(0)
            .rightTo( depth )

        val side = Square( height, width )
            .roundCorner(2,round2)
            .roundCorner(1,round2)
            .smartExtrude( thickness )
                .bottom( Chamfer( chamfer ) )
            .rotateX(90)
            .frontTo(0)
            .rightTo( height )
            .rotateZ(90).mirrorX()


        return main + side + top
    }

    override meth build() = plainBracket()
}

class ShelfBracket : PlainShelfBracket() {

    @Custom
    var countersink = Countersink()

    meth topHoles() : Shape3d {
        return countersink
            .rotateX(-90)
            .centerZTo( width/2 )
            .backTo( thickness )
            .leftTo( thickness + round*2 + 6 )
            .centerXTo( depth - overlap/2 - thickness*0.6 ).also()
    }

    meth sideHoles() : Shape3d {
        val height = height()
        return countersink
            .rotateY(90)
            .centerZTo( width/2 )
            .rightTo( thickness )
            .frontTo( thickness + round*2 + 6 )
            .centerYTo( height - overlap/2 - thickness*0.6 ).also()
    }

    override meth build() : Shape3d {
        val plain = super.build()

        val topHoles = topHoles()
        val sideHoles = sideHoles()

        return plain - topHoles - topHoles - sideHoles
    }
}