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package bulletgraph;


import javafx.animation.Interpolator;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.scene.CustomNode;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.paint.Color;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Line;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.scene.text.TextAlignment;

/**
 * @author Vaibhav
 */


 /* Class Bullet - For one Instance of Bullet in Bullet Graph */
public class Bullet extends CustomNode {
    /*expected and achieved */
    public var expected = 0.0;
    public var achieved = 0.0;
    /* range for performace */
    public var below = 0.0;
    public var avg = 0.0;
    public var good = 0.0;
    /* timeline variation */
    public var len = 0.0;
    /* Main and SubText */
    public var txt: String;
    public var subtxt: String;
    public var startdelay: Duration;
    public var endtime: Duration;

    /* animate the achieved bar */
    
    public var t1 = Timeline {
        repeatCount: 1
        keyFrames: [
            KeyFrame {
                time: startdelay
                canSkip: true
                values: [
                    len => 0
                ]
            } //close KeyFrame
            KeyFrame {
                time: endtime
                canSkip: true
                values: [
                    len => //Convert actual value to correct # of pixels
                    240 * achieved / good tween Interpolator.LINEAR
                ]
            } 
        ]
    }
        
    
    init {
        t1.playFromStart();
    }

    public override function create(): Node {
        return Group {
            content: [
                Rectangle {  //Create 'average' portion of bar
                    cache: true
                    opacity: 0.4
                    x: 100 + 240 * below / good,
                    y: 50
                    width: 240 * avg / good - 240 * below / good,
                    height: 35
                    fill: LinearGradient {
                        startX: 0.0
                        startY: 0.0
                        endX: 0.0
                        endY: 1.0
                        stops: [
                            Stop {
                                color: Color.SILVER
                                offset: 0.0
                            },
                            Stop {
                                color: Color.LIGHTGRAY
                                offset: 0.5
                            },
                            Stop {
                                color: Color.SILVER
                                offset: 1.0
                            },
                        ]
                    }
                }
                Rectangle {  //Create 'poor' portion of bar
                    cache: true
                    opacity: 1.0
                    x: 100,
                    y: 50
                    width: 240 * below / good,
                    height: 35
                    fill: LinearGradient {

                        startX: 0.0
                        startY: 0.0
                        endX: 0.0
                        endY: 1.0
                        stops: [
                            Stop {
                                color: Color.SILVER
                                offset: 0.0
                            },
                            Stop {
                                color: Color.DARKGREY
                                offset: 0.5
                            },
                            Stop {
                                color: Color.SILVER
                                offset: 1.0
                            },
                        ]
                    }
                }
/* Create bar that underlies entire length and also displays 'good' portion */
                Rectangle { 
                    cache: true
                    opacity: 0.4
                    x: 100,
                    y: 50
                    width: 240,
                    height: 35
                    fill: LinearGradient {
                        startX: 0.0
                        startY: 0.0
                        endX: 0.0
                        endY: 1.0
                        stops: [
                            Stop {
                                color: Color.SILVER
                                offset: 0.0
                            },
                            Stop {
                                color: Color.LIGHTGRAY
                                offset: 0.5
                            },
                            Stop {
                                color: Color.SILVER
                                offset: 1.0
                            },

                        ]
                    }
                    stroke: Color.GRAY

                }, 
                
                Rectangle {   // bar for actual values
                    cache: true
                    opacity: 1
                    x: 100,
                    y: 63
                    width: bind len,
                    height: 10
                    fill: LinearGradient {
                        startX: 0.0
                        startY: 0.0
                        endX: 0.0
                        endY: 1.0
                        stops: [
                            Stop {
                                color: Color.YELLOWGREEN
                                offset: 0.0
                            },
                            Stop {
                                color: Color.GREEN
                                offset: 1.0
                            },
                     
                        ]
                    }
                }
                // vertical line for predicted value
                Rectangle {
                    cache: true
                    x: 100 + 240 * expected / good,
                    y: 50
                    width: 3,
                    height: 36
                    fill: Color.BLACK
                },
                Text { //Text label to left of bar
                    fill: Color.GRAY
                    font: Font {
                        size: 13
                        name: "Arial Bold"
                    }
                    x: 35,
                    y: 72
                    content: txt
                }
                Text { //Text sublabel to left of bar
                    fill: Color.GRAY
                    font: Font {
                        size: 8
                        name: "Arial Bold"
                    }
                    x: 60,
                    y: 80
                    content: subtxt
                }
                /* Tick marks and labels */
                Group {
                    cache: true
                    content: for(i in [0..4]) { [
                            Line { 
                                startX: 340 - i * (240 / 4)
                                startY: 90
                                endX: 340 - i * (240 / 4)
                                endY: 95
                                strokeWidth: 1
                                stroke: Color.BLACK
                            },                            
                            Text {  
                                font: Font {
                                    size: 11
                                    name: "Arial Bold"
                                }
                                x: 95 + i * (240 / 4),
                                y: 110
                                content: "{(i)*good/4}"
                            }
                        ]
                    }
                }
            ]
        };
    }
}