/Tools/NutBoltAndInsert.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.*
import uk.co.nickthecoder.foocad.threaded.v1.Threaded

class NutBoltAndInsert : Model {
    
    @Custom
    var threadSize = 2.0
    @Custom
    var threadD = 20.0
    @Custom
    var threadPitch = 16.0
    @Custom(about="Number of threads")
    var threadCount = 3

    @Custom
    var nutSize = 10.0

    @Custom
    var nutChamfer = 1.2

    @Custom
    var boltLength = 30.0

    @Custom
    var boltChamfer = 2.0

    @Custom( about="The width and depth of the slot in the bolt head" )
    var slotSize = Vector2( 10, 6 )

    @Custom(about="Length and diameter of the insert")
    var insertSize = Vector2(20, 24.5)

    @Custom(about="Diameter and thickness of the front of the insert")
    var insertFront = Vector2( 1, 32 )

    @Custom
    var keySize = Vector2(70, 8)
    
    @Custom
    var keyChamfer = 2.0

    @Custom
    var keyRadius = 4.0

    @Custom(about="Diameter and thickness of the washer" )
    var washerSize = Vector2( 2, 40 )

    @Custom(about="Diameter and thickness of the rubber washer" )
    var rubberSize = Vector2( 4, 40 )

    fun threaded() : Threaded {
        val thread = Threaded.create( threadSize, threadD, threadPitch )
        thread.threadCount = threadCount
        thread.nutChamfer = nutChamfer
        thread.rodChamfer = boltChamfer
    
        return thread
    }

    @Piece
    fun bolt() : Shape3d {
        val bolt = threaded().bolt( boltLength, 10 ).color( "Orange" )
        return if ( slotSize.x > 0 ) {
            bolt - Cube( slotSize.x, bolt.size.x * 2, slotSize.y + 1 ).centerXY().bottomTo(-1)
        } else {
            bolt
        }
        
    }

    /*
        Insert into the bolt's slot to make it easier to turn the bolt.
    */
    @Piece
    fun key() : Shape3d {
        if ( slotSize.x <= 0 ) return Cube() // Cannot have a key when there is no slot.

        return Square( slotSize.x-0.5, keySize.x )
            .roundAllCorners( keyRadius )
            .center()
            .chamferedExtrude( keySize.y, Math.min(0.8, keyChamfer), keyChamfer )
    }

    @Piece
    fun nut() : Shape3d {
        return threaded().nut(nutSize)
    }

    @Piece
    fun insert() : Shape3d {
        val hole = threaded().hole( insertSize.x + 10 )
            .bottomTo(-5)
            .color( "Red" )

        val solid = Cylinder( insertFront.x, insertFront.y/2 ) +
            Cylinder( insertSize.x+insertFront.x, insertSize.y/2 )
        return solid - hole
    }

    @Piece
    fun washer() : Shape3d {
        val ring = Circle( washerSize.y / 2 ) - Circle( threadD / 2 + threadSize/2 )

        return ring.extrude( washerSize.x ).color("Grey")
    }

    /*
        A rubber washer, which does not freely move over the threads due to the three "pips"
    */
    @Piece
    fun rubber() : Shape3d {
        val ring = Circle( rubberSize.y / 2 ) - Circle( threadD / 2 )
        val pips = Circle( threadSize ).translateX(threadD/2)
            .repeatAround( 3 )

        val shape = ring + pips

        return shape.extrude( rubberSize.x ).color("DarkSlateGrey")
    }

    override fun build() : Shape3d {
        return bolt() +
            rubber().translateZ( boltLength - 6 ) +
            washer().translateZ( boltLength - 10 ) +
            key().mirrorZ().topTo( slotSize.y ) +
            nut().translateZ(boltLength+10) +
            insert().topTo(-10)
    }
}