/**
 * 药品批量操作管理类
 */
class GoodsBatchManager {
    constructor(vueInstance) {
        this.vue = vueInstance;
    }

    /**
     * 显示批量操作对话框
     */
    showBatchOperate() {
        if (!this.vue.checkedList.length) {
            return this.vue.$message.info('请先选择需要修改的药品');
        }
        this.vue.changeForm.key = 'status';
        this.vue.submitLoading = false;
        this.vue.showBatchOperate = true;
    }

    /**
     * 选择批量修改的字段
     */
    selectedChangeKey(val) {
        this.resetFormValue(val);
        this.vue.changeForm.delivery_template_id = '';
        
        if (['goods_info', 'goods_plu'].includes(val)) {
            this.openBatchEditDialog(val);
        }
    }

    /**
     * 重置表单值
     */
    resetFormValue(val) {
        switch (val) {
            case 'status':
                this.vue.changeForm.value = 1;
                break;
            case 'retail_state':
            case 'online_state':
            case 'vip_retail_state':
            case 'vip_online_state':
            case 'guide_royalty_state':
            case 'refund_state':
            case 'exchange_state':
                this.vue.changeForm.value = 0;
                break;
            case 'delivery_type':
                this.vue.changeForm.value = [];
                if (!this.vue.deliveryTemplateList.length) {
                    this.getDeliveryTemplateList();
                }
                break;
            case 'goods_class_id':
            case 'fictitious_num':
                this.vue.changeForm.value = '';
                break;
        }
    }

    /**
     * 打开批量编辑对话框
     */
    openBatchEditDialog(val) {
        const ids = this.vue.checkedList.map(item => item.id).join(',');
        const urlMap = {
            'goods_info': { title: '批量修改药品', url: `updateGoods?id=${ids}` },
            'goods_plu': { title: '批量修改药品PLU', url: `updateGoodsPLU?id=${ids}` },
        };

        GoodsUtils.openDialog({
            title: urlMap[val].title,
            content: `/index.php/Retail/Goods/${urlMap[val].url}`,
            end: () => {
                this.vue.getData();
            }
        });
        
        this.vue.showBatchOperate = false;
    }

    /**
     * 批量操作药品
     */
    async batchOperateGoods(close) {
        const validation = GoodsUtils.validateBatchOperation(this.vue.changeForm, this.vue.checkedList);
        if (!validation.valid) {
            return this.vue.$message.warning(validation.message);
        }

        const goodsIds = this.vue.checkedList.map(item => item.id).join(',');
        this.vue.submitLoading = true;

        if (this.vue.changeForm.key === 'goods_class_id') {
            await this.verifyGoodsChangeClass(goodsIds, close);
        } else {
            await this.submitChangeGoods(goodsIds, close);
        }
    }

    /**
     * 验证药品分类变更
     */
    async verifyGoodsChangeClass(goodsIds, close) {
        try {
            const res = await GoodsUtils.apiRequest('Retail/LabelInventory/verifyGoodsChangeClass', {
                class_id: this.vue.changeForm.value,
                operate_type: 2,
                goods_ids: goodsIds,
            });

            if (res.status == 1) {
                await this.submitChangeGoods(goodsIds, close);
            } else {
                this.vue.submitLoading = false;
                this.handleVerificationError(res);
            }
        } catch (error) {
            this.vue.submitLoading = false;
            this.vue.$message.error('验证失败');
        }
    }

    /**
     * 处理验证错误
     */
    handleVerificationError(res) {
        if (res.data && res.data.length > 0) {
            let str = `<div><p class="danger">${res.message}</p>`;
            res.data.forEach((item, index) => {
                str += `<p><span>${index + 1}. </span><span>${item.goods_name}</span></p>`;
            });
            str += `</div>`;
            this.vue.$alert(str, '错误提示', {
                dangerouslyUseHTMLString: true,
                type: 'danger',
            }).catch(() => {});
        } else {
            this.vue.$message.error(res.message);
        }
    }

    /**
     * 提交变更药品
     */
    async submitChangeGoods(goodsIds, close) {
        try {
            const res = await GoodsUtils.apiRequest('Retail/Goods/batchOperateGoods', {
                ...this.vue.changeForm,
                goodsIds: goodsIds,
            });

            this.vue.submitLoading = false;
            if (res.status == 1) {
                if (close) {
                    this.vue.showBatchOperate = false;
                    this.vue.checkedList = [];
                    this.vue.getData();
                }
                this.vue.$message.success(res.message);
            } else {
                this.vue.$message.error(res.message);
            }
        } catch (error) {
            this.vue.submitLoading = false;
            this.vue.$message.error('操作失败');
        }
    }

    /**
     * 获取配送模板列表
     */
    async getDeliveryTemplateList() {
        try {
            const res = await GoodsUtils.apiRequest("/index.php/Retail/SystemDelivery/getStoreFreightTem");
            if (res.code == 0) {
                this.vue.deliveryTemplateList = res.data;
            }
        } catch (error) {
            this.vue.$message.error('获取配送模板失败');
        }
    }
}

window.GoodsBatchManager = GoodsBatchManager;