export class Rectangle {
    
    x1: number;
    y1: number;
    x2: number;
    y2: number;

    constructor(x1: number, y1: number, x2: number, y2: number) {
        this.x1 = x1;
        this.y1 = y1;
        this.x2 = x2;
        this.y2 = y2;
        this.updateCoords(x1, y1, x2, y2);
    }

    get width(): number {
        return Math.abs(this.x1-this.x2)
    }

    get height(): number {
        return Math.abs(this.y1-this.y2)
    }

    get zeroX(): number {
        return this.x1
    }

    get zeroY(): number {
        return this.y2
    }

    get midX(): number {
        return this.x1 + Math.abs(this.x2 - this.x1)*0.5;
    }

    get midY(): number {
        return this.y1 + Math.abs(this.y2 - this.y1)*0.5;
    }

    updateCoords(x1: number, y1: number, x2: number, y2: number) {
        this.x1 = x1;
        this.y1 = y1;
        this.x2 = x2;
        this.y2 = y2;
    }

// @ts-ignore
    countDistBetweenRects(type: string, next: Rectangle) : number {
        switch (type) {
            case 'vertical':
                return this.y1 - next.y2
            break;

            case 'horizontal':
                return this.x1 - next.x2
            break;
        }
        
    }

    move(dx: number, dy: number) {
        this.x1 = this.x1 + dx;
        this.y1 = this.y1 + dy;
        this.x2 = this.x2 + dx;
        this.y2 = this.y2 + dy;
    }

    draw(ctx: CanvasRenderingContext2D) {
        ctx.rect(this.x1, this.y1, this.width, this.height);
        ctx.strokeStyle = 'red';
        ctx.lineWidth = 1;
        ctx.stroke();
    }

    isIntersect(next: Rectangle) {
        if (this.x1 > next.x2 || next.x1 > this.x2) {
            return false;
        }
        if (this.y1 > next.y2 || next.y1 > this.y2) {
            return false;
        }
        return true;
    }

    splitX(next: Rectangle): number {
        let k = this.width + next.width - next.x2 + this.x1;
        return k;
    }

    splitY(next: Rectangle): number {
        let k = this.height + next.height - next.y2 + this.y1;
        return k;
    }

}