/*
 * create by zhangxiaojian
 *调用方法 $(ID/class).slide({
 *	autoplay:true/false,
 *	autoTime:4000  //自己设定 
 *});
 *
 *
 */

(function ($) {
    $.fn.slide = function (options) {
        var dft = {
            zs_lunLock: true,
            autoplay: true,
            autoTime: 4000,
            curentImg: 0,
            height: 0,
            clickLunTime: 500
        };
        var ops = $.extend(dft, options);

        var zs_item = $(this).find(".slideItem");
        var zs_itemWidth = $(this).find(".slideItem").width();
        var t_time;
        var isImgLoad = false;
        var $this = this;
        var zs_dotListHtml = "<ul>";
        var zs_dots;
        var maxHeight = 0;

        var checkVideo = 0;

        if (ops.height == 0) {
            t_time = setInterval(function () {
                $($this).find(".slideItem img").each(function () {
                    if (this.height === 0 && $(this).is(":visible")) {
                        isImgLoad = false;
                        return false;
                    } else {
                        maxHeight = maxHeight > $(this).height() ? maxHeight : $(this).height();
                        isImgLoad = true;
                    }
                });
                if (isImgLoad) {
                    maxHeight = maxHeight > $($this).height() ? maxHeight : $($this).height();
                    clearInterval(t_time);
                    if ($($this).find(".slideItem").find("video").length > 0 && checkVideo == 0) {
                        checkVideo = 1;
                    }
                    if (checkVideo > 0) {
                        $($this).find(".carouse").height(maxHeight - 5);
                    } else {
                        $($this).find(".carouse").height(maxHeight);
                    }
                    $($this).find(".playBtn").css("top", (maxHeight - 50) / 2);
                    lunbo();
                }
                //ItemImgLoad(callback); // 递归扫描
                //console.log();
            }, 100); // 我这里设置的是100毫秒就扫描一次，可以自己调整

        }
        function lunbo() {
            zs_itemWidth = $($this).find(".slideItem").width();
            if (ops.height == 0) {
                if (checkVideo > 0) {
                    $($this).find(".carouse").height($($this).find(".slideItem").height() - 5);
                } else {
                    $($this).find(".carouse").height($($this).find(".slideItem").height());
                }
                $($this).find(".playBtn").css("top", ($($this).find(".slideItem").height() - 50) / 2);
            } else {
                $($this).find(".carouse").height(ops.height);
            }
            for (var i = 0; i < zs_item.length; i++) {
                $($this).find(".itemIndex" + i).css("left", zs_itemWidth * i);
            }
        }

        $(window).resize(function () {
            lunbo();
        });
        for (var i = 0; i < zs_item.length; i++) {
            var toLeft = zs_itemWidth * i;
            $(this).find(zs_item[i]).css("left", toLeft);
            $(this).find(zs_item[i]).addClass("itemIndex" + i);
            zs_dotListHtml += '<li class="dot" dotIndex=' + i + '></li>';
            if (i == zs_item.length - 1) {
                zs_dotListHtml += "</ul>";
                var zs_showWord = "<p class='showLunWord'></p>";
                $(this).find(".dotList").html(zs_dotListHtml);
                $(this).find(".arti-content").html(zs_showWord);
                $(this).find('.dotList ul li').first().addClass("active");
                $($this).find(".arti-content .showLunWord").html($($this).find(zs_item[0]).find(".slidedetail").html());
                zs_dots = $(this).find('.dot');
            }
        }
        var zs_next = function () {
            lunbo();
            if (ops.zs_lunLock) {
                ops.zs_lunLock = false;
                var Move_left = 0;
                var intemcount = zs_item.length - 1;
                $($this).find(".itemIndex" + intemcount).css("left", -zs_itemWidth);
                for (var i = 0; i < zs_item.length; i++) {
                    Move_left = parseFloat($($this).find(".itemIndex" + i).css("left")) + parseFloat($($this).find(".slideItem").width());
                    $($this).find(".itemIndex" + i).animate({left: Move_left}, 500);
                }
                for (var j = 0; j < zs_item.length; j++) {
                    var className = $($this).find(zs_item[j]).attr("class") + "";
                    var count = className.indexOf("itemIndex");
                    var index = className.substring(count, className.length);
                    var pp = index.indexOf(" ");
                    if (pp > 0) {
                        index = index.substring(9, pp);
                    } else {
                        index = index.substring(9, index.length);
                    }
                    $($this).find(zs_item[j]).removeClass("itemIndex" + index);
                    var next_index = parseInt(index) + 1;
                    if (next_index == zs_item.length) {
                        next_index = 0;
                    }
                    //控制底部圆点
                    $($this).find(zs_dots[j]).removeClass("active");
                    if (next_index == 0) {
                        $($this).find(zs_dots[j]).addClass("active");
                        $($this).find(".arti-content .showLunWord").html($($this).find(zs_item[j]).find(".slidedetail").html());
                    }
                    $($this).find(zs_item[j]).addClass("itemIndex" + next_index);
                }

                setTimeout(function () {
                    ops.zs_lunLock = true;
                }, 500);
            }
        };
        var zs_pre = function () {
            lunbo();
            if (ops.zs_lunLock) {
                ops.zs_lunLock = false;
                var Move_left = 0;
                for (var i = 0; i < zs_item.length; i++) {
                    Move_left = parseFloat($($this).find(".itemIndex" + i).css("left")) - parseFloat($($this).find(".slideItem").width());
                    $($this).find(" .itemIndex" + i).animate({left: Move_left}, 500);
                }
                for (var j = 0; j < zs_item.length; j++) {
                    var className = $($this).find(zs_item[j]).attr("class") + "";
                    var count = className.indexOf("itemIndex");
                    var index = className.substring(count, className.length);
                    var pp = index.indexOf(" ");
                    if (pp > 0) {
                        index = index.substring(9, pp);
                    } else {
                        index = index.substring(9, index.length);
                    }
                    $($this).find(zs_item[j]).removeClass("itemIndex" + index);
                    var next_index = parseInt(index) - 1;
                    if (next_index == -1) {
                        next_index = zs_item.length - 1;
                    }

                    //控制底部圆点
                    $($this).find(zs_dots[j]).removeClass("active");
                    if (next_index == 0) {
                        $($this).find(zs_dots[j]).addClass("active");
                        $($this).find(".arti-content .showLunWord").html($($this).find(zs_item[j]).find(".slidedetail").html());
                    }
                    $($this).find(zs_item[j]).addClass("itemIndex" + next_index);
                }

                setTimeout(function () {
                    var des = parseFloat(zs_itemWidth) * (zs_item.length - 1);
                    $($this).find(".itemIndex" + (zs_item.length - 1)).animate({left: des}, 0.01);
                    ops.zs_lunLock = true;
                }, 500);
            }
        }
        $(this).find(".Next").click(function () {
            zs_next();
        });
        $(this).find(".Previous").click(function () {
            zs_pre();
        });
        $(this).find(".dot").click(function () {
            lunbo();
            var dotIntex = $(this).attr("dotIndex");
            var itemIndex = "";
            for (var i = 0; i < zs_item.length; i++) {
                var tagClass = $($this).find(zs_item[i]).attr("class") + "";
                if (tagClass.indexOf("itemIndex0") > 0) {
                    itemIndex = i;
                }
            }
            var Dvalue = dotIntex - itemIndex;
            if (Dvalue > 0) {
                zs_prevGo(Dvalue);
            } else {
                zs_nextGo(-Dvalue);
            }
        });
        var zs_prevGo = function (Dvalue) {
            if (ops.zs_lunLock) {
                ops.zs_lunLock = false;
                var Move_left = 0;
                for (var i = 0; i < zs_item.length; i++) {
                    Move_left = parseFloat($($this).find(".itemIndex" + i).css("left")) - Dvalue * parseFloat($($this).find(".slideItem").width());
                    $($this).find(" .itemIndex" + i).animate({left: Move_left}, ops.clickLunTime);
                }
                for (var j = 0; j < zs_item.length; j++) {
                    var className = $($this).find(zs_item[j]).attr("class") + "";
                    var count = className.indexOf("itemIndex");
                    var index = className.substring(count, className.length);
                    var pp = index.indexOf(" ");
                    if (pp > 0) {
                        index = index.substring(9, pp);
                    } else {
                        index = index.substring(9, index.length);
                    }
                    $($this).find(zs_item[j]).removeClass("itemIndex" + index);
                    var next_index = parseInt(index) - Dvalue;
                    if (next_index < 0) {
                        next_index = zs_item.length + next_index;
                    }

                    //控制底部圆点
                    $($this).find(zs_dots[j]).removeClass("active");
                    if (next_index == 0) {
                        $($this).find(zs_dots[j]).addClass("active");
                        $($this).find(".arti-content .showLunWord").html($($this).find(zs_item[j]).find(".slidedetail").html());
                    }
                    $($this).find(zs_item[j]).addClass("itemIndex" + next_index);
                }

                setTimeout(function () {
                    for (var m = 0; m < zs_item.length; m++) {
                        var des = parseFloat(zs_itemWidth) * (zs_item.length - 1 - m);
                        $($this).find(".itemIndex" + (zs_item.length - 1 - m)).animate({left: des}, 0.01);

                    }
                    ops.zs_lunLock = true;
                }, 500);
            }

        }
        var zs_nextGo = function (Dvalue) {
            if (ops.zs_lunLock) {
                ops.zs_lunLock = false;
                var Move_left = 0;
                var y = zs_item.length - 1;
                for (var x = 0; x < Dvalue; x++) {
                    $($this).find(".itemIndex" + y).css("left", -zs_itemWidth - x * zs_itemWidth);
                    y--;
                }
                for (var i = 0; i < zs_item.length; i++) {
                    Move_left = parseFloat($($this).find(".itemIndex" + i).css("left")) + Dvalue * parseFloat($($this).find(".slideItem").width());
                    $($this).find(" .itemIndex" + i).animate({left: Move_left}, ops.clickLunTime);
                }
                for (var j = 0; j < zs_item.length; j++) {
                    var className = $($this).find(zs_item[j]).attr("class") + "";
                    var count = className.indexOf("itemIndex");
                    var index = className.substring(count, className.length);
                    var pp = index.indexOf(" ");
                    if (pp > 0) {
                        index = index.substring(9, pp);
                    } else {
                        index = index.substring(9, index.length);
                    }
                    $($this).find(zs_item[j]).removeClass("itemIndex" + index);
                    var next_index = parseInt(index) + Dvalue;
                    if (next_index >= zs_item.length) {
                        next_index = next_index - zs_item.length;
                    }
                    //控制底部圆点
                    $($this).find(zs_dots[j]).removeClass("active");
                    if (next_index == 0) {
                        $($this).find(zs_dots[j]).addClass("active");
                        $($this).find(".arti-content .showLunWord").html($($this).find(zs_item[j]).find(".slidedetail").html());
                    }
                    $($this).find(zs_item[j]).addClass("itemIndex" + next_index);
                }

                setTimeout(function () {
                    ops.zs_lunLock = true;
                }, 500);
            }
        };
        $(this).bind('touchstart', function (e) {
            startX = e.originalEvent.changedTouches[0].pageX,
                startY = e.originalEvent.changedTouches[0].pageY;
        });
        $(this).bind('touchend', function (e) {
            endX = e.originalEvent.changedTouches[0].pageX,
                endY = e.originalEvent.changedTouches[0].pageY;
            //获取滑动距离
            distanceX = endX - startX;
            distanceY = endY - startY;
            //判断滑动方向
            if (Math.abs(distanceX) > Math.abs(distanceY) && distanceX > 0) {
                zs_next();
            } else if (Math.abs(distanceX) > Math.abs(distanceY) && distanceX < 0) {
                zs_pre();
            }
        });


        var zs_lunInterval = setInterval(function () {
            if (ops.autoplay) {
                zs_pre();
            }
        }, ops.autoTime);
        if (!ops.autoplay) {
            clearInterval(zs_lunInterval);
        }
        $(".slideItem").hover(function () {
            ops.autoplay=false;

        },function () {
            ops.autoplay=true;
        })

    };
})(jQuery);