javascript_practice/hw17/index.js

class RGB {
	#r = 0
	#g = 0
	#b = 0

	constructor(){
		console.log(this.#r, this.#g, this.#b)
	}

	checkRange(value){
		return value >= 0 && value <= 255
	}

	get r(){
		return this.#r
	}

	set r(newR){
		this.#r = this.checkRange(newR) ? newR : this.#r
	}

	get g(){
		return this.#g
	}

	set g(newG){
		this.#g = this.checkRange(newG) ? newG : this.#g
	}

	get b(){
		return this.#b
	}

	set b(newB){
		this.#b = this.checkRange(newB) ? newB : this.#b
	}

	get hex(){
		const t = a => (a < 16 ? '0' : '') + a.toString(16).toUpperCase()

		return `#${t(this.#r)}${t(this.#g)}${t(this.#b)}`
	}

	set hex(newHex){
		const hexRegexp = /^#([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})$/
		let parsed;
		if (parsed = newHex.match(hexRegexp)){
			//console.log(parsed)
			const [,r,g,b] = parsed
			this.r = parseInt(r, 16)
			this.g = parseInt(g, 16)
			this.b = parseInt(b, 16)
		}
		else {
			throw SyntaxError('wrong hex color')
		}
	}

	get rgb(){
		const {r,g,b} = this
		return `rgb(${r},${g},${b})`
	}

	set rgb(newRGB) {
		const rgbRegexp = /^\s*rgb\s*\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)\s*$/
		let parsed;
		if (parsed = newRGB.match(rgbRegexp)){
			const [,r,g,b] = parsed
			this.#r = +r;
			this.#g = +g;
			this.#b = +b;
		}
		else {
			throw SyntaxError('wrong rgb color')
		}
	}
}

class RGBA extends RGB {
	#a = 0;

	constructor() {
		super();
		console.log(this.r, this.g, this.b, this.#a)
	}

	checkAlphaRange(value){
		return value >= 0 && value <= 1
	}

	get a(){
		return this.#a
	}

	set a(newA){
		this.#a = this.checkAlphaRange(newA) ? newA : this.#a
	}

	get rgba(){
		const {r,g,b,a} = this
		return `rgba(${r},${g},${b},${a})`
	}

	set rgba(newRGBA) {
		const rgbRegexp = /^\s*rgba\s*\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*((0\.\d+)|1|0)\s*\)\s*$/
		let parsed;
		if (parsed = newRGBA.match(rgbRegexp)){
			const [,r,g,b,a] = parsed
			this.r = +r
			this.g = +g
			this.b = +b
			this.a = +a
		}
		else {
			throw SyntaxError('wrong rgba color')
		}
	}

	set color(color) {
		if(color.includes('#')) {
			this.hex = color;
		} else if(color.includes('rgba')) {
			this.rgba = color;
		} else if(color.includes('rgb')) {
			this.rgb = color;
		}
	}
}

let rgb = new RGB;
let rgb2 = new RGB;
let rgba = new RGBA;
let rgba2 = new RGBA;
let rgba3 = new RGBA;
let rgba4 = new RGBA;
rgb.hex = '#eeccee';
console.log('rgb', rgb);
rgb2.rgb = 'rgb(238, 204, 238)';
console.log('rgb2', rgb2);
console.log('get rgba', rgba.rgba)
rgba2.color = 'rgb(200, 45, 255)';
rgba3.color = '#eeeccc';
rgba4.color = 'rgba(102, 45, 255, 0.7)';
console.log(rgba2)
console.log(rgba3)
console.log(rgba4)