/Boxes/TissueBoxCover.foocad

import static uk.co.nickthecoder.foocad.chamferedextrude.v1.ChamferedExtrude.*
import static uk.co.nickthecoder.foocad.layout.v1.Layout2d.*
import static uk.co.nickthecoder.foocad.layout.v1.Layout3d.*

class TissueBoxCover : Model {
    
    var boxWidth = 120

    var boxDepth = 120

    var boxHeight = 130

    var margin = 10

    var cornerRadius = 3

    var extra = 8

    fun profile( amplitude : double ) : Shape2d {

        val width = boxWidth + extra
        val depth = boxWidth + extra

        val profile = PolygonBuilder().apply {

            val bumps = 4
            val dx = (width - margin) / bumps
            val dy = (depth - margin) / bumps

            val xRadius = Vector2( dx/4, amplitude )
            val yRadius = Vector2( amplitude, dy/4 )

            // First side
            moveTo( margin, 0 )
            radius( 0 )

            for ( i in 0 until bumps ) {
                arcTo( Vector2(margin + dx * i, 0), xRadius, 0, true, true )
                arcTo( Vector2(margin + dx * i + dx/2, 0), xRadius, 0, true, false )
            }
            radius( cornerRadius )
            lineTo( width, 0 )
            radius( 0 )

            // Second side
            lineTo( width, margin )
            for ( i in 0 until bumps ) {
                arcTo( Vector2( width, margin + dy * i), yRadius, 0, true, true )
                arcTo( Vector2( width, margin + dy * i + dy/2), yRadius, 0, true, false )
            }
            radius( cornerRadius )
            lineTo( width, depth )
            radius( 0 )

            // Third side
            lineTo( width-margin, depth )
            for ( i in 0 until bumps ) {
                arcTo( Vector2( width - (margin + dx * i), depth), xRadius, 0, true, true )
                arcTo( Vector2( width - (margin + dx * i + dx/2), depth), xRadius, 0, true, false )
            }
            radius( cornerRadius )
            lineTo( 0, depth )
            radius( 0 )

            // Forth side
            lineTo( 0, depth - margin )
            for ( i in 0 until bumps ) {
                arcTo( Vector2( 0, depth - (margin + dy * i) ), yRadius, 0, true, true )
                arcTo( Vector2( 0, depth - (margin + dy * i + dy/2) ), yRadius, 0, true, false )
            }

            radius( cornerRadius )
            lineTo( 0,0 )
        }.build()

        return profile
    }

    @Piece
    fun body() : Shape3d {

        val middle = ExtrusionBuilder().apply {
            crossSection( profile( 1 ) )
            forward( 2 )
            crossSection( profile( 3 ) )
            forward( boxHeight - margin * 2 - 4 )
            crossSection()
            forward( 2 )
            crossSection( profile( 1 ) )
        }.build()

        val ends = baseProfile(0).extrude( margin )


        return ends +
            middle.centerXY().translateZ(margin) +
            ends.translateZ( boxHeight - margin )
    }

    fun baseProfile( offset : double ) : Shape2d {
        val profile = Square( boxWidth + extra, boxDepth + extra ).center()
            .roundAllCorners( cornerRadius )

        return if ( offset == 0 ) {
            profile
        } else {
            val scale = (profile.size - Vector2( offset, offset )) / profile.size 
            profile.scale( scale )
        }
    }
    
    @Piece
    fun lid() : Shape3d {

        val thickness = 1.2
        val chamfer = 1
        val lipOffset = 2
        val lipInset = 2
        val lipThickness = 2
        val lipHeight = 5

        val lid = ExtrusionBuilder().apply {
            crossSection( baseProfile(chamfer) )
            forward( chamfer )
            crossSection( baseProfile(0) )
            forward( thickness )
            crossSection()
            crossSection( baseProfile( lipInset ) )
            forward( lipHeight )
            crossSection()
            crossSection( baseProfile( lipInset + lipThickness ) )
            forward( - lipHeight )
            crossSection()
        }.build()

        val a = Circle( 12 ).translateX(14)
        val holeP = a.hull( a.mirrorX() )
        val hole = holeP.internalChamferedExtrude( 4, 1, 1 )
        val thicker = (holeP.offset( 2 ) - holeP).extrude( 4 )

        return lid + thicker - hole
    }

    override fun build() : Shape3d {
        val box = Cube( boxWidth, boxDepth, boxHeight ).previewOnly().centerXY()
        val main = body()
        val lid : Shape3d = lid().mirrorZ().bottomTo(main.top)
        return box.translateZ(10) + main + lid
    }
}