/**
 * 购物车商品操作
 * @author: feng.chen<feng.chen@yoho.cn>
 * @date: 2016/12/29
 */

'use strict';

let $ = require('yoho-jquery'),
    tip = require('../../plugin/tip'),
    chosePanel = require('../chose-panel'),
    loading = require('../../plugin/loading'),
    dialog = require('../../plugin/dialog');

let goodObj = {
    init(handle) {
        let self = this;

        self.handle = handle;
        $('.good-item').on('click', '.num-opt .btn', function(e) {
            self.modifyNumClick(e);
        });
        $('.good-item').on('click', '.chk.select', function(e) {
            self.checkSelectClick(e);
        });
        $('.good-item').on('click', '.chk.edit', function(e) {
            self.checkClick(e);
        });
        $('.btn-fav').on('click', function() {
            self.favClick();
        });
        $('.good-item').on('click', '.edit-size-info', function(e) {
            self.sizeInfoClick(e);
        });
        $('.good-item').on('click', '.name,.color-size-row,.img', function(e) {
            self.goodClick(e);
        });
        $('.check-all').on('click', function(e) {
            self.checkedAllClick(e);
        });
        $('.btn-del').on('click', function() {
            self.delClick();
        });
        $('.btn-remove').on('click', function() {
            self.removeInvalidClick();
        });
        self.clearLowStock();
    },
    checkClick(e) {
        $(e.currentTarget).toggleClass('checked');
    },
    removeInvalidClick() {
        let self = this;

        dialog.showDialog({
            dialogText: '您确定要清空失效商品吗？',
            hasFooter: {
                leftBtnText: '取消',
                rightBtnText: '确定'
            }
        }, function() {
            ((callback) => {
                let promise = self.removeAllDisabled();

                if (promise) {
                    promise.then(() => {
                        callback();
                    }, () => {
                        dialog.hideDialog();
                    });
                } else {
                    return callback();
                }
            })(() => {
                dialog.showDialog({
                    dialogText: '清空成功',
                    autoHide: true,
                    fast: true
                });
            });

        });
    },
    delClick() {
        let self = this;

        if (!$('.good-item .chk.edit.checked').length) {
            tip.show('请至少选择一件商品');
            return;
        }
        dialog.showDialog({
            dialogText: '您确定要从购物车中删除吗？',
            hasFooter: {
                leftBtnText: '取消',
                rightBtnText: '确定'
            }
        }, function() {
            self.delGood($('.good-item .chk.edit.checked')).then(() => {
                dialog.showDialog({
                    dialogText: '删除成功',
                    autoHide: true,
                    fast: true
                });
            }, () => {
                dialog.hideDialog();
            });
        });
    },
    goodClick(e) {
        if ($(e.delegateTarget).hasClass('in-valid') && !$(e.delegateTarget).hasClass('in-valid-low')) {
            tip.show('商品已下架');
        } else {
            window.location.href = $(e.delegateTarget).data('link');
        }
    },
    checkSelectClick(e) {
        let self = this;

        if (!$(e.currentTarget).hasClass('checked') && $(e.delegateTarget).find('.low-stocks').length > 0) {
            tip.show('库存不足，无法购买');
            return false;
        }
        self.selectGood($(e.currentTarget));
    },
    sizeInfoClick(e) {
        let self = this;
        let isGift = $(e.delegateTarget).hasClass('is-gift');

        self.openChosepanel(e, isGift);
    },
    favClick() {
        let self = this;

        if (!$('.good-item .chk.edit.checked').length) {
            tip.show('请至少选择一件商品');
            return;
        }
        self.favGood($('.good-item .chk.edit.checked')).then(() => {
            dialog.showDialog({
                dialogText: '收藏成功',
                autoHide: true,
                fast: true
            });
        }, () => {
            dialog.hideDialog();
        });
    },
    checkedAllClick(e) {
        let self = this;

        if (self.handle.editMode) {
            $(e.currentTarget).find('.chk.edit').toggleClass('checked');
            if ($(e.currentTarget).find('.chk.edit').hasClass('checked')) {
                $('.good-item .chk.edit').addClass('checked');
            } else {
                $('.good-item .chk.edit').removeClass('checked');
            }
        } else {
            $(e.currentTarget).find('.chk.select').toggleClass('checked');
            let checked = $(e.currentTarget).find('.chk.select').hasClass('checked');

            if (checked) {
                let promise = self.clearLowStock();

                if (promise) {
                    tip.show('您全选的商品中存在库存不足商品，已帮您自动取消勾选');
                    promise.then(() => {
                        self.selectGood($('.good-item:not(.low-stocks) .chk.select'), true);
                    });
                } else {
                    self.selectGood($('.good-item:not(.low-stocks) .chk.select'), true);
                }
            } else {
                self.selectGood($('.good-item .chk.select'), false);
            }

        }
    },
    selectGood(eles, selectAll) {
        let self = this;

        if (self.handle.posting) {
            return;
        }
        self.handle.posting = true;
        let skuData = self.getSelectGoodData(eles, selectAll);

        loading.showLoading();
        return $.ajax({
            type: 'post',
            url: '/cart/index/new/select',
            data: {
                skuList: JSON.stringify(skuData)
            },
            complete: () => {
                self.handle.posting = false;
                loading.hideLoading();
            }
        }).then(data => {
            if (data.code === 200) {
                self.handle.refreshPage(data.data);
            } else if (data.code === 400) {
                tip.show('网络异常');
            }
        }, err => {
            tip.show(err.responseJSON ? err.responseJSON.message : '网络异常');
        });

    },
    delGood(eles) {
        let self = this;
        let skuData = self.getSelectGoodData(eles).map(ele => {
            delete ele.goods_type;
            delete ele.selected;
            return ele;
        });

        loading.showLoading();
        return $.ajax({
            type: 'post',
            url: '/cart/index/new/del',
            dataType: 'json',
            data: {
                skuList: JSON.stringify(skuData)
            },
            complete: () => {
                loading.hideLoading();
            }
        }).then(data => {
            if (data.code === 200) {
                self.handle.refreshPage(data.data);
            } else if (data.code === 400) {
                tip.show('网络异常');
            }
        }, err => {
            tip.show(err.responseJSON ? err.responseJSON.message : '网络异常');
        });
    },
    favGood(eles) {
        let self = this;
        let skuData = self.getSelectGoodData(eles).map(ele => {
            delete ele.goods_type;
            delete ele.selected;
            return ele;
        });

        loading.showLoading();
        return new Promise((resolve, reject) => {
            $.ajax({
                type: 'post',
                url: '/cart/index/new/col',
                data: {
                    skuList: JSON.stringify(skuData)
                },
                complete: () => {
                    loading.hideLoading();
                }
            }).then((data) => {
                if (data.code === 200) {
                    self.handle.refreshPage(data.data);
                    return resolve();
                } else if (data.code === 400) {
                    tip.show('网络异常');
                    return reject();
                } else if (data.code === 401) {
                    tip.show(data.message);
                    setTimeout(() => {
                        window.location.href = data.data;
                    }, 1000);
                    return reject();
                }
            }, err => {
                tip.show(err.responseJSON ? err.responseJSON.message : '网络异常');
                return reject();
            });
        });
    },
    getSelectGoodData(eles, selectAll) {
        return Array.from(eles.map((i, ele) => {
            let $this = $(ele),
                $good = $this.closest('.good-item'),
                id = $good.data('id'),
                promotion = $good.data('promotion');

            let goodInfo = {};

            goodInfo.goods_type = $('#cartType').val();
            if (selectAll !== undefined) {
                goodInfo.selected = selectAll ? 'Y' : 'N';
            } else {
                goodInfo.selected = $this.hasClass('checked') ? 'N' : 'Y';
            }
            goodInfo.product_sku = id;
            goodInfo.promotion_id = promotion;
            goodInfo.buy_number = $good.find('.good-num').val();
            return goodInfo;
        }));

    },
    showEditPannelWithSku(html, id, isSelected, isEditNum, isGift, e) {
        let self = this;

        if (html.length < 2) {
            tip.show('出错啦！');
            return false;
        }

        // 删掉页面上原有的pannel
        chosePanel.remove();

        $(html).appendTo('#chose-panel');


        chosePanel.init();
        chosePanel.setEditModeWithSknId(id, isSelected, isGift);
        if (!isEditNum) {
            chosePanel.disableNumEdit();
        }

        chosePanel.show('', (cartGoodData) => {
            $(e.delegateTarget).data('id', cartGoodData.new_product_sku);
            let goodNum = parseInt($(e.delegateTarget).find('.good-num').val(), 10);
            let max = parseInt($(e.delegateTarget).find('.good-num').data('max'), 10);

            if (!$(e.delegateTarget).find('.chk.select').hasClass('checked') && goodNum <= max) {
                self.selectGood($(e.delegateTarget).find('.chk.select'));
            } else {
                self.handle.refreshPage();
            }
        });
    },
    modifyNumClick(e) {
        let self = this;

        if (self.handle.posting) {
            return;
        }

        let isGift = $(e.delegateTarget).hasClass('is-gift');

        if (isGift) {
            return;
        }
        let goodNumEle = $(e.delegateTarget).find('.good-num');
        let minNumber = goodNumEle.data('min'),
            maxNumber = goodNumEle.data('max');

        let minusEl = $(e.delegateTarget).find('.btn-opt-minus'),
            plusEl = $(e.delegateTarget).find('.btn-opt-plus');

        let oldGoodNum = $(e.delegateTarget).find('.good-num').val(),
            goodNum = oldGoodNum,
            sku = $(e.delegateTarget).data('id');

        $(e.currentTarget).hasClass('btn-opt-plus') ? goodNum++ : goodNum--;

        if (goodNum <= minNumber) {
            $(minusEl).addClass('disabled');
        } else if (minNumber < oldGoodNum && $(minusEl).hasClass('disabled')) {
            $(minusEl).removeClass('disabled');
        }
        if (goodNum >= maxNumber) {
            $(plusEl).addClass('disabled');
        } else if (maxNumber > oldGoodNum && $(plusEl).hasClass('disabled')) {
            $(plusEl).removeClass('disabled');
        }

        if (goodNum < minNumber) {
            if (minNumber === 1) {
                tip.show('您选择的数量不能为零~');
            } else if (minNumber > 1) {
                tip.show(`量贩商品，${minNumber}件起购`);
            }
            return;
        }
        if (goodNum > maxNumber && $(e.currentTarget).hasClass('btn-opt-plus')) {
            tip.show('您选择的数量超过了最大库存量~');
            return;
        }
        self.handle.posting = true;
        goodNumEle.val(goodNum);
        $(e.delegateTarget).find('.count').text(`x${goodNum}`);

        $.ajax({
            type: 'post',
            url: '/cart/index/new/modifyNum',
            data: {
                sku,
                increaseNum: goodNum > oldGoodNum ? goodNum - oldGoodNum : 0,
                decreaseNum: oldGoodNum > goodNum ? oldGoodNum - goodNum : 0,
            },
            success: (data) => {
                if (data.code !== 200) {
                    tip.show('网络异常');
                } else {
                    goodNum = parseInt($(e.delegateTarget).find('.good-num').val(), 10);
                    let max = parseInt($(e.delegateTarget).find('.good-num').data('max'), 10);

                    if (!$(e.delegateTarget).find('.chk.select').hasClass('checked') && goodNum <= max) {
                        self.handle.posting = false;
                        self.selectGood($(e.delegateTarget).find('.chk.select'));
                    } else {
                        self.handle.refreshPage().then(() => {
                            self.handle.posting = false;
                        });
                    }

                }
            },
            error: (err) => {
                self.handle.posting = false;
                tip.show(err.responseJSON ? err.responseJSON.message : '网络异常');
            },
            complete: () => {
                dialog.hideDialog();
            }
        });
    },
    openChosepanel(e, isGift) {
        let self = this;
        let skn = $(e.delegateTarget).data('skn');
        let id,
            count,
            canEditNum,
            minNum,
            promotionId;
        let isSelected = $(e.delegateTarget).find('.chk.select').hasClass('checked');

        id = $(e.delegateTarget).data('id');
        count = $(e.delegateTarget).find('.good-num').val();
        minNum = $(e.delegateTarget).data('mnum');
        promotionId = $(e.delegateTarget).data('promotion');

        // 加价购或者赠品不能编辑数量
        canEditNum = $(e.delegateTarget).find('.flag.gift').length || $(e.delegateTarget).find('.flag.price-gift').length ? false : true;
        e.stopPropagation();
        loading.showLoading();
        $.ajax({
            url: '/cart/index/new/goodinfo',
            data: {
                skn: skn,
                buy_num: count,
                mnum: minNum > 1 ? minNum : undefined,
                promotion_id: promotionId
            },
            type: 'POST',
            success: function(data) {
                let html = require('common/chose-panel.hbs')(data);

                self.showEditPannelWithSku(html, id, isSelected, canEditNum, isGift, e);
            },
            error: function(err) {
                tip.show(err.responseJSON ? err.responseJSON.message : '网络异常');
            },
            complete: function() {
                loading.hideLoading();
            }
        });
    },
    clearLowStock() {
        let self = this;
        let goods = $('.good-item.low-stocks').find('.chk.select.checked');

        if (goods.length) {
            return self.selectGood(goods);
        }
        return false;

    },
    removeAllDisabled() {
        let self = this;
        let goods = $('.good-item.in-valid').find('.disable');

        if (goods.length) {
            return self.delGood(goods);
        }
        return false;
    }
};

module.exports = goodObj;