$.fn.YTTooltip = function (option) {
    let eleArr = [];

    this.each(function (index, value) {

        let obj = {
            ele: value,
            isShowArr: [],
            html: $(option.html) || '',
            tooltipDiv: null,
            direction: option.direction || 'bottom',
            toggle: "click",
            hideTooltipEvent: hideTooltipEvent,
            onShow: option.onShow || null,
        };

        if (obj.toggle == "hover") {
            obj.toggle == "mouseenter"
        }

        $(obj.ele).on(obj.toggle, function () {
            let tooId = $(this).data("yttooltipid");
            let display = "flex";
            //顯示 tooltip 程序 及 存入已顯示紀錄arr
            if (!tooId || obj.isShowArr.indexOf(tooId) == -1) {
                let ranId = Math.floor((Math.random() * (9999999 - 1000000)) + 1000000);
                obj.isShowArr.push(ranId);
                let clone = $(obj.html);
                //body 元素 高寬
                let bodyWidth = $("body")[0].offsetWidth;
                let bodyHeight = $("body")[0].offsetHeight;
                //計算引用元素 offset
                let offset = $(this).offset();
                //引用元素 高寬
                let width = $(this)[0].offsetWidth;
                let height = $(this)[0].offsetHeight;

                $(this).data("yttooltipid", ranId);
                $(clone).attr("id", "yt_tooltip_" + ranId)
                $("body").append(clone);
                obj.tooltipDiv = clone;
                //顯示 tooltip
                $(clone).css({ "display": display, "position": "absolute" });
                obj.onShow ? obj.onShow(clone,obj) : "";
                //tooltip 高寬
                let toolWidth = $(clone)[0].offsetWidth;
                let toolHeight = $(clone)[0].offsetHeight;

                let left = offset.left + width + toolWidth > bodyWidth ? offset.left - toolWidth : offset.left + width;
                let top = offset.top + height + toolHeight > bodyHeight ? offset.top - toolHeight : offset.top + height;

                //計算 位置
                if (obj.direction == "left") {
                    left = offset.left < toolWidth ? offset.left + width + 5 : offset.left - toolWidth - 10;
                } else if (obj.direction == "right") {
                    left = offset.left + toolWidth + width > bodyWidth ? offset.left - toolWidth - 10 : offset.left + width + 10;
                } else if (obj.direction == "bottom") {
                    top = offset.top + toolHeight + height > bodyHeight ? offset.top - toolHeight - 10 : offset.top + height + 10;
                } else if (obj.direction == "top") {
                    top = offset.top < toolHeight ? offset.top + height + 5 : offset.top - toolHeight - 10;
                }

                if (obj.direction == "left" || obj.direction == "right") {
                    $(clone).css({ left: left, top: offset.top });
                } else if (obj.direction == "top" || obj.direction == "bottom"){
                    $(clone).css({ left: offset.left, top: top});
                }
            } else {
                obj.hideTooltipEvent(tooId);
            }

            if (obj.toggle == "hover") {
                $(obj.tooltipDiv).off("mouseover").on("mouseover", function () {
                    $(this).css("display", "flex");
                })
                $(obj.tooltipDiv).off("mouseleave").on("mouseleave", function () {
                    let tooId = $(this).attr("id").split("yt_tooltip_")[1];
                    obj.hideTooltipEvent(tooId);
                })
            }
        })

        if (obj.toggle == "hover") {
            $(obj.ele).on("mouseleave", function (e) {
                let tooId = $(this).data("yttooltipid");
                hideTooltipEvent(tooId);
                e.stopPropagation();
            })
        }


        function hideTooltipEvent(tooId) {
            $("#yt_tooltip_" + tooId).hide();
            setTimeout(function () {
                if ($("#yt_tooltip_" + tooId).css("display") == "none") {
                    obj.isShowArr.splice($.inArray(tooId, obj.isShowArr), 1);
                    $("#yt_tooltip_" + tooId).remove();
                }
            }, 100)
        }

        eleArr.push(obj);
    })

    let result = eleArr.filter(x => this.toArray().findIndex(y => y == x.ele) != -1)[0];

    return result;
}