/**
 * 药品管理工具类
 */
class GoodsUtils {
    /**
     * API请求封装
     */
    static async apiRequest(url, data = {}, method = 'POST') {
        const options = {
            method: method,
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
            },
        };

        if (method.toUpperCase() === 'POST') {
            options.body = new URLSearchParams(data).toString();
        } else if (method.toUpperCase() === 'GET') {
            const queryString = new URLSearchParams(data).toString();
            if (queryString) {
                url += '?' + queryString;
            }
        }

        try {
            const response = await fetch(url, options);
            if (!response.ok) {
                throw new Error(`HTTP Error: ${response.status}`);
            }
            return await response.json();
        } catch (error) {
            console.error(`Request to ${url} failed`, error);
            throw error;
        }
    }

    /**
     * 打开弹窗
     */
    static openDialog(config) {
        return layer.open({
            type: 2,
            area: ["calc(100% - 160px)", "calc(100% - 65px)"],
            offset: 'rb',
            shade: 0,
            resize: false,
            move: false,
            ...config
        });
    }

    /**
     * 格式化搜索参数
     */
    static formatSearchParams(searchForm, pagination) {
        return {
            page: pagination.currentPage,
            limit: pagination.currentLimit,
            ...searchForm
        };
    }

    /**
     * 验证批量操作参数
     */
    static validateBatchOperation(changeForm, checkedList) {
        if (!changeForm.key) {
            return { valid: false, message: '请选择修改的内容' };
        }
        
        if (changeForm.key === 'goods_class_id' && !changeForm.value) {
            return { valid: false, message: '请完善分类' };
        }
        
        if (changeForm.key === 'delivery_type') {
            if (!changeForm.value.length) {
                return { valid: false, message: '请选择配送方式' };
            }
            if (changeForm.value.indexOf(3) >= 0 && !changeForm.delivery_template_id) {
                return { valid: false, message: '请选择发货模板' };
            }
        }

        // 验证价格设置
        for (let i = 0; i < checkedList.length; i++) {
            if (changeForm.key === 'retail_state' && !parseFloat(checkedList[i].retail_price)) {
                return { valid: false, message: `第${i + 1}个药品未设置店内零售价，不可开启店内出售` };
            }
            if (changeForm.key === 'online_state' && !parseFloat(checkedList[i].online_price)) {
                return { valid: false, message: `第${i + 1}个药品未设置商城零售价，不可开启商城出售` };
            }
        }

        return { valid: true };
    }
}

window.GoodsUtils = GoodsUtils;