import { SimulationNodeDatum } from 'd3';

export class Node implements SimulationNodeDatum {

    index?: number;
    x?: number;
    y?: number;
    vx?: number;
    vy?: number;
    fx?: number | null;
    fy?: number | null;
    name?: string;
    codec?: string;

    linkCount = 0;
    fontSizeName = 6.5;
    fontSizeCodec = 6;
    selected = false;
    coSelected = false;

    id: string;

    color: string;
    dropshadow: string;

    constructor(id: string, name?: string, codec?: string) {
        this.id = id;
        this.name = name;
        this.codec = codec;
        this.reset();
    }

    normal = (nonZero: boolean = false) => {
        if (this.linkCount === 0) { return nonZero ? 0.2 : 0; }
        return Math.sqrt(this.linkCount / 100);
    }

    get r(): number {
        if (this.selected) {
          return 48;
        }
        if (this.linkCount > 0) {
            return 15;
        }
        return 12.5;
    }

    get rBase(): number {
        return this.selected ? this.r + 2 : this.r;
    }

    get rContent(): number {
        return this.r - 10;
    }

    get fontSizeId(): number {
        if (this.selected) {
          return 32;
        }
        if (this.linkCount > 0) {
            return 14;
        }
        return 13;
    }

    get chargeFactor(): number {
        if (this.selected) {
            return this.r * 2;
        }
        return this.r;
    }

    fontSize(factor: number, add: number, nonZeroNormal = false): number {
        return factor * this.normal(nonZeroNormal) + add;
    }

    reset(): void {
        this.color = 'url(#blueGradient)';
        this.dropshadow = 'url(#dropshadow)';
        this.selected = false;
        this.coSelected = false;
    }
}