(function () {

    var util = {
        css: function (elem, obj) {
            for (var i in obj) {
                elem.style[i] = obj[i];
            }
        },
        hasClass: function (elem, classN) {
            var className = elem.getAttribute("class");
            return className.indexOf(classN) != -1;
        }
    };

    function Colorpicker(opt) {
        if (this === window) throw `Colorpicker: Can't call a function directly`;
        this.init(opt);
    };

    Colorpicker.prototype = {
        init(opt) {
            let { el, initColor = "rgb(255,0,0)", allMode = ['hex', 'rgb'], color = '' } = opt;
            var elem = document.getElementById(el);

            if (!(elem && elem.nodeType && elem.nodeType === 1)) {
                throw `Colorpicker: not found  ID:${el}  HTMLElement,not ${{}.toString.call(el)}`;
            }

            this.Opt = {
                ...opt,
                el,
                initColor,
                allMode,
                color
            }

            this.bindElem = elem; // 缁戝畾鐨勫厓绱�
            this.elem_wrap = null; // 鏈€澶栧眰瀹瑰櫒
            this.fixedBg = null; // 鎷捐壊鍣ㄥ悗闈㈠浐瀹氬畾浣嶇殑閫忔槑div 鐢ㄤ簬鐐瑰嚮闅愯棌鎷捐壊鍣�
            this.elem_colorPancel = null; // 鑹插僵闈㈡澘
            this.elem_picker = null; // 鎷捐壊鍣ㄨ壊鍧楁寜閽�
            this.elem_barPicker1 = null; // 棰滆壊鏉�
            this.elem_hexInput = null; // 鏄剧ずhex鐨勮〃鍗�
            this.elem_showColor = null; // 鏄剧ず褰撳墠棰滆壊
            this.elem_showModeBtn = null; // 鍒囨崲杈撳叆妗嗘ā寮忔寜閽�
            this.elem_inputWrap = null; // 杈撳叆妗嗗灞傚鍣�

            this.pancelLeft = 0;
            this.pancelTop = 0;

            this.downX = 0;
            this.downY = 0;
            this.moveX = 0;
            this.moveY = 0;

            this.pointLeft = 0;
            this.pointTop = 0;

            this.current_mode = 'hex'; // input妗嗗綋鍓嶇殑妯″紡

            this.rgba = { r: 0, g: 0, b: 0, a: 1 };
            this.hsb = { h: 0, s: 100, b: 100 };


            var _this = this, rgb = initColor.slice(4, -1).split(",");

            this.rgba.r = parseInt(rgb[0]);
            this.rgba.g = parseInt(rgb[1]);
            this.rgba.b = parseInt(rgb[2]);

            var body = document.getElementsByTagName("body")[0],
                div = document.createElement("div");

            div.innerHTML = this.render();
            body.appendChild(div);

            this.elem_wrap = div;
            this.fixedBg = div.children[0];
            this.elem_colorPancel = div.getElementsByClassName("color-pancel")[0];
            this.pancel_width = this.elem_colorPancel.offsetWidth;
            this.pancel_height = this.elem_colorPancel.offsetHeight;
            this.elem_picker = div.getElementsByClassName("pickerBtn")[0];
            this.elem_colorPalette = div.getElementsByClassName("color-palette")[0];
            this.elem_showColor = div.getElementsByClassName("colorpicker-showColor")[0];
            this.elem_barPicker1 = div.getElementsByClassName("colorBar-color-picker")[0];
            /*   this.elem_barPicker2 = div.getElementsByClassName("colorBar-opacity-picker")[0]; */
            this.elem_hexInput = div.getElementsByClassName("colorpicker-hexInput")[0];
            this.elem_showModeBtn = div.getElementsByClassName("colorpicker-showModeBtn")[0];
            this.elem_inputWrap = div.getElementsByClassName("colorpicker-inputWrap")[0];
            /*  this.elem_opacityPancel = this.elem_barPicker2.parentNode.parentNode.children[1]; */

            // var rect = this.bindElem.getBoundingClientRect();
            var elem = this.bindElem;
            var top = elem.offsetTop;
            var left = elem.offsetLeft;
            while (elem.offsetParent) {
                top += elem.offsetParent.offsetTop;
                left += elem.offsetParent.offsetLeft;
                elem = elem.offsetParent;
            }

            this.pancelLeft = left + this.elem_colorPalette.clientWidth;
            this.pancelTop = top + this.bindElem.offsetHeight;
            util.css(div, {
                "position": "absolute",
                "z-index": 999999999999999,
                "display": 'none',
                "left": left + "px",
                "top": top + this.bindElem.offsetHeight + "px"
            });

            this.bindMove(this.elem_colorPancel, this.setPosition, true);
            this.bindMove(this.elem_barPicker1.parentNode, this.setBar, false);
            /*  this.bindMove(this.elem_barPicker2.parentNode,this.setBar,false); */

            this.bindElem.addEventListener("click", function () {
                _this.show();
            }, false);

            this.fixedBg.addEventListener("click", function (e) {
                _this.hide();
            }, false)

            this.elem_showModeBtn.addEventListener("click", function () {
                _this.switch_current_mode();
            }, false)

            this.elem_wrap.addEventListener("input", function (e) {
                var target = e.target, value = target.value;
                _this.setColorByInput(value);
            }, false);

            this.elem_colorPalette.addEventListener("click", function (e) {
                if (e.target.tagName.toLocaleLowerCase() == "p") {
                    let colorStr = e.target.style.background;
                    let rgb = colorStr.slice(4, -1).split(",");
                    let rgba = {
                        r: parseInt(rgb[0]),
                        g: parseInt(rgb[1]),
                        b: parseInt(rgb[2])
                    }
                    switch (_this.current_mode) {
                        case "hex":
                            _this.setColorByInput("#" + _this.rgbToHex(rgba))
                            break;
                        case 'rgb':
                            let inputs = _this.elem_wrap.getElementsByTagName("input")
                            inputs[0].value = rgba.r;
                            inputs[1].value = rgba.g;
                            inputs[2].value = rgba.b;
                            _this.setColorByInput(colorStr)
                            /* 	_this.hsb = _this.rgbToHsb(rgba); */
                            break;
                    }

                }
            }, false);

            (color != '' && this.setColorByInput(color));
        },
        render: function () {
            var tpl =
                `<div style="position: fixed; top: 0px; right: 0px; bottom: 0px; left: 0px;"></div>
				<div style="position: inherit;z-index: 99999999999999999;display: flex;box-shadow: rgba(0, 0, 0, 0.3) 0px 0px 2px, rgba(0, 0, 0, 0.3) 0px 4px 8px;">
					<div style='width:180px;padding:10px;background: #f9f9f9;display: flex;flex-flow: row wrap;align-content: space-around;justify-content: space-around;' class='color-palette'>
						${this.getPaletteColorsItem()}
					</div>
					<div class="colorpicker-pancel" style="background: rgb(255, 255, 255);box-sizing: initial; width: 225px; font-family: Menlo;">
						<div style="width: 100%; padding-bottom: 55%; position: relative; border-radius: 2px 2px 0px 0px; overflow: hidden;">
							<div class="color-pancel" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; background: rgb(${this.rgba.r},${this.rgba.g},${this.rgba.b})">
								<style>
									.saturation-white {background: -webkit-linear-gradient(to right, #fff, rgba(255,255,255,0));background: linear-gradient(to right, #fff, rgba(255,255,255,0));}
									.saturation-black {background: -webkit-linear-gradient(to top, #000, rgba(0,0,0,0));background: linear-gradient(to top, #000, rgba(0,0,0,0));}
								</style>
								<div class="saturation-white" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px;">
									<div class="saturation-black" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px;">
									</div>
									<div class="pickerBtn" style="position: absolute; top: 0%; left: 100%; cursor: default;">
										<div style="width: 12px; height: 12px; border-radius: 6px; box-shadow: rgb(255, 255, 255) 0px 0px 0px 1px inset; transform: translate(-6px, -6px);">
										</div>
									</div>
								</div>
							</div>
						</div>
						<div style="padding: 0 16px 20px;">
							<div class="flexbox-fix" style="display: flex;align-items: center;height: 40px;">
								<div style="width: 32px;">
									<div style="width: 16px; height: 16px; border-radius: 8px; position: relative; overflow: hidden;">
										<div class="colorpicker-showColor" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; border-radius: 8px; box-shadow: rgba(0, 0, 0, 0.1) 0px 0px 0px 1px inset; background:rgb(${this.rgba.r},${this.rgba.g},${this.rgba.b}); z-index: 999999999999999;"></div>
										<div class="" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; background: url(&quot;data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAMUlEQVQ4T2NkYGAQYcAP3uCTZhw1gGGYhAGBZIA/nYDCgBDAm9BGDWAAJyRCgLaBCAAgXwixzAS0pgAAAABJRU5ErkJggg==&quot;) left center;"></div>
									</div>
								</div>
								<div style="-webkit-box-flex: 1; flex: 1 1 0%;"><div style="height: 10px; position: relative;">
									<div style="position: absolute; top: 0px;right: 0px; bottom: 0px; left: 0px;">
										<div class="hue-horizontal" style="padding: 0px 2px; position: relative; height: 100%;">
											<style>
												.hue-horizontal {background: linear-gradient(to right, #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);background: -webkit-linear-gradient(to right, #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);}
												.hue-vertical {background: linear-gradient(to top, #f00 0%, #ff0 17%, #0f0 33%,#0ff 50%, #00f 67%, #f0f 83%, #f00 100%);background: -webkit-linear-gradient(to top, #f00 0%, #ff0 17%,#0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);}
											</style>
											<div  class="colorBar-color-picker" style="position: absolute; left: 0%;">
												<div style="width: 12px; height: 12px; border-radius: 6px; transform: translate(-6px, -1px); background-color: rgb(248, 248, 248); box-shadow: rgba(0, 0, 0, 0.37) 0px 1px 4px 0px;">
												</div>
											</div>
										</div>
									</div>
								</div>
							</div>
						</div>
						<div class="flexbox-fix" style="display: flex;">
							<div class="flexbox-fix colorpicker-inputWrap" style="-webkit-box-flex: 1; flex: 1 1 0%; display: flex; margin-left: -6px;">
									${this.getInputTpl()}
							</div>
							<div class="colorpicker-showModeBtn" style="width: 32px; text-align: right; position: relative;">
								<div style="margin-right: -4px;  cursor: pointer; position: relative;">
									<svg viewBox="0 0 24 24" style="width: 24px; height: 24px; border: 1px solid transparent; border-radius: 5px;"><path fill="#333" d="M12,5.83L15.17,9L16.58,7.59L12,3L7.41,7.59L8.83,9L12,5.83Z"></path><path fill="#333" d="M12,18.17L8.83,15L7.42,16.41L12,21L16.59,16.41L15.17,15Z"></path></svg>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>`;
            return tpl;
        },
        getInputTpl: function () {
            var current_mode_html = "";
            switch (this.current_mode) {
                case 'hex':
                    var hex = "#" + this.rgbToHex(this.HSBToRGB(this.hsb));
                    current_mode_html += `
							<div style="padding-left: 6px; width: 100%;">
								<div style="position: relative;">
									<input class="colorpicker-hexInput" value="${hex}" spellcheck="false" style="font-size: 11px; color: rgb(51, 51, 51); width: 100%; border-radius: 2px; border: none; box-shadow: rgb(218, 218, 218) 0px 0px 0px 1px inset; height: 21px; text-align: center;">
									<span style="text-transform: uppercase; font-size: 11px; line-height: 11px; color: rgb(150, 150, 150); text-align: center; display: block; margin-top: 12px;">hex</span>
								</div>
							</div>`;
                    break;
                case 'rgb':
                    for (var i = 0; i < 3; i++) {
                        current_mode_html +=
                            `<div style="padding-left: 6px; width: 100%;">
								<div style="position: relative;">
									<input class="colorpicker-hexInput" value="${this.rgba['rgb'[i]]}" spellcheck="false" style="font-size: 11px; color: rgb(51, 51, 51); width: 100%; border-radius: 2px; border: none; box-shadow: rgb(218, 218, 218) 0px 0px 0px 1px inset; height: 21px; text-align: center;">
									<span style="text-transform: uppercase; font-size: 11px; line-height: 11px; color: rgb(150, 150, 150); text-align: center; display: block; margin-top: 12px;">${'rgb'[i]}</span>
								</div>
							</div>`;
                    }
                default:
            }
            return current_mode_html;
        },
        getPaletteColorsItem: function () {
            let str = '';
            let palette = ["rgb(0, 0, 0)", "rgb(67, 67, 67)", "rgb(102, 102, 102)", "rgb(204, 204, 204)", "rgb(217, 217, 217)", "rgb(255, 255, 255)",
                "rgb(152, 0, 0)", "rgb(255, 0, 0)", "rgb(255, 153, 0)", "rgb(255, 255, 0)", "rgb(0, 255, 0)", "rgb(0, 255, 255)",
                "rgb(74, 134, 232)", "rgb(0, 0, 255)", "rgb(153, 0, 255)", "rgb(255, 0, 255)", "rgb(230, 184, 175)", "rgb(244, 204, 204)",
                "rgb(252, 229, 205)", "rgb(255, 242, 204)", "rgb(217, 234, 211)", "rgb(208, 224, 227)", "rgb(201, 218, 248)", "rgb(207, 226, 243)",
                "rgb(217, 210, 233)", "rgb(234, 209, 220)", "rgb(221, 126, 107)", "rgb(234, 153, 153)", "rgb(249, 203, 156)", "rgb(255, 229, 153)",
                "rgb(182, 215, 168)", "rgb(162, 196, 201)", "rgb(164, 194, 244)", "rgb(159, 197, 232)", "rgb(180, 167, 214)"]
            palette.forEach(item => str += `<p style='width:20px;height:20px;background:${item};margin:0 5px;border: solid 1px #d0d0d0;'></p>`)
            return str;
        },
        setPosition(x, y) {
            var LEFT = parseInt(x - this.pancelLeft),
                TOP = parseInt(y - this.pancelTop);

            this.pointLeft = Math.max(0, Math.min(LEFT, this.pancel_width));
            this.pointTop = Math.max(0, Math.min(TOP, this.pancel_height));

            util.css(this.elem_picker, {
                left: this.pointLeft + "px",
                top: this.pointTop + "px"
            })
            this.hsb.s = parseInt(100 * this.pointLeft / this.pancel_width);
            this.hsb.b = parseInt(100 * (this.pancel_height - this.pointTop) / this.pancel_height);

            this.setShowColor();
            this.setValue(this.rgba);

        },
        setBar: function (elem, x) {
            var elem_bar = elem.getElementsByTagName("div")[0],
                rect = elem.getBoundingClientRect(),
                elem_width = elem.offsetWidth,
                X = Math.max(0, Math.min(x - rect.x, elem_width));

            if (elem_bar === this.elem_barPicker1) {
                util.css(elem_bar, {
                    left: X + "px"
                });
                this.hsb.h = parseInt(360 * X / elem_width);
            } else {
                util.css(elem_bar, {
                    left: X + "px"
                });
                this.rgba.a = X / elem_width;
            }

            this.setPancelColor(this.hsb.h);
            this.setShowColor();
            this.setValue(this.rgba);

        },
        setPancelColor: function (h) {
            var rgb = this.HSBToRGB({ h: h, s: 100, b: 100 });

            util.css(this.elem_colorPancel, {
                background: 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + this.rgba.a + ')'
            });
        },
        setShowColor: function () {
            var rgb = this.HSBToRGB(this.hsb);

            this.rgba.r = rgb.r;
            this.rgba.g = rgb.g;
            this.rgba.b = rgb.b;

            util.css(this.elem_showColor, {
                background: 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + this.rgba.a + ')'
            });
        },
        setValue: function (rgb) {
            var hex = "#" + this.rgbToHex(rgb);
            this.elem_inputWrap.innerHTML = this.getInputTpl();
            console.log("1")
            this.Opt.change(this.bindElem, hex);
        },
        setColorByInput: function (value) {
            var _this = this;
            switch (this.current_mode) {
                case "hex":
                    value = value.slice(1);
                    if (value.length == 3) {
                        value = '#' + value[0] + value[0] + value[1] + value[1] + value[2] + value[2];
                        this.hsb = this.hexToHsb(value);
                    } else if (value.length == 6) {
                        this.hsb = this.hexToHsb(value);
                    }
                    break;
                case 'rgb':
                    var inputs = this.elem_wrap.getElementsByTagName("input"),
                        rgb = {
                            r: inputs[0].value ? parseInt(inputs[0].value) : 0,
                            g: inputs[1].value ? parseInt(inputs[1].value) : 0,
                            b: inputs[2].value ? parseInt(inputs[2].value) : 0
                        };

                    this.hsb = this.rgbToHsb(rgb);
            }
            this.changeViewByHsb();
        },
        changeViewByHsb: function () {
            this.pointLeft = parseInt(this.hsb.s * this.pancel_width / 100);
            this.pointTop = parseInt((100 - this.hsb.b) * this.pancel_height / 100);
            util.css(this.elem_picker, {
                left: this.pointLeft + "px",
                top: this.pointTop + "px"
            });

            this.setPancelColor(this.hsb.h);
            this.setShowColor();
            util.css(this.elem_barPicker1, {
                left: this.hsb.h / 360 * (this.elem_barPicker1.parentNode.offsetWidth) + "px"
            });

            var hex = '#' + this.rgbToHex(this.HSBToRGB(this.hsb));
            console.log("2")
            this.Opt.change(this.bindElem, hex);
        },
        switch_current_mode: function () {
            this.current_mode = this.current_mode == 'hex' ? 'rgb' : 'hex';
            this.elem_inputWrap.innerHTML = this.getInputTpl();
        },
        bindMove: function (elem, fn, bool) {
            var _this = this;

            elem.addEventListener("mousedown", function (e) {
                _this.downX = e.pageX;
                _this.downY = e.pageY;
                bool ? fn.call(_this, _this.downX, _this.downY) : fn.call(_this, elem, _this.downX, _this.downY);

                document.addEventListener("mousemove", mousemove, false);
                function mousemove(e) {
                    _this.moveX = e.pageX;
                    _this.moveY = e.pageY;
                    bool ? fn.call(_this, _this.moveX, _this.moveY) : fn.call(_this, elem, _this.moveX, _this.moveY);
                    e.preventDefault();
                }
                document.addEventListener("mouseup", mouseup, false);
                function mouseup(e) {

                    document.removeEventListener("mousemove", mousemove, false)
                    document.removeEventListener("mouseup", mouseup, false)
                }
            }, false);
        },
        show: function () {
            util.css(this.elem_wrap, {
                "display": "block"
            })
        },
        hide: function () {
            util.css(this.elem_wrap, {
                "display": "none"
            })
        },
        HSBToRGB: function (hsb) {
            var rgb = {};
            var h = Math.round(hsb.h);
            var s = Math.round(hsb.s * 255 / 100);
            var v = Math.round(hsb.b * 255 / 100);

            if (s == 0) {
                rgb.r = rgb.g = rgb.b = v;
            } else {
                var t1 = v;
                var t2 = (255 - s) * v / 255;
                var t3 = (t1 - t2) * (h % 60) / 60;

                if (h == 360) h = 0;

                if (h < 60) { rgb.r = t1; rgb.b = t2; rgb.g = t2 + t3 }
                else if (h < 120) { rgb.g = t1; rgb.b = t2; rgb.r = t1 - t3 }
                else if (h < 180) { rgb.g = t1; rgb.r = t2; rgb.b = t2 + t3 }
                else if (h < 240) { rgb.b = t1; rgb.r = t2; rgb.g = t1 - t3 }
                else if (h < 300) { rgb.b = t1; rgb.g = t2; rgb.r = t2 + t3 }
                else if (h < 360) { rgb.r = t1; rgb.g = t2; rgb.b = t1 - t3 }
                else { rgb.r = 0; rgb.g = 0; rgb.b = 0 }
            }

            return { r: Math.round(rgb.r), g: Math.round(rgb.g), b: Math.round(rgb.b) };
        },
        rgbToHex: function (rgb) {
            var hex = [
                rgb.r.toString(16),
                rgb.g.toString(16),
                rgb.b.toString(16)
            ];
            hex.map(function (str, i) {
                if (str.length == 1) {
                    hex[i] = '0' + str;
                }
            });

            return hex.join('');
        },
        hexToRgb: function (hex) {
            var hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
            return { r: hex >> 16, g: (hex & 0x00FF00) >> 8, b: (hex & 0x0000FF) };
        },
        hexToHsb: function (hex) {
            return this.rgbToHsb(this.hexToRgb(hex));
        },
        rgbToHsb: function (rgb) {
            var hsb = { h: 0, s: 0, b: 0 };
            var min = Math.min(rgb.r, rgb.g, rgb.b);
            var max = Math.max(rgb.r, rgb.g, rgb.b);
            var delta = max - min;
            hsb.b = max;
            hsb.s = max != 0 ? 255 * delta / max : 0;
            if (hsb.s != 0) {
                if (rgb.r == max) hsb.h = (rgb.g - rgb.b) / delta;
                else if (rgb.g == max) hsb.h = 2 + (rgb.b - rgb.r) / delta;
                else hsb.h = 4 + (rgb.r - rgb.g) / delta;
            } else hsb.h = -1;
            hsb.h *= 60;
            if (hsb.h < 0) hsb.h += 360;
            hsb.s *= 100 / 255;
            hsb.b *= 100 / 255;
            return hsb;
        }
    }

    Colorpicker.create = function (opt) {
        return new Colorpicker(opt)
    }

    window.Colorpicker = Colorpicker;
})()