/**
 * 复制文本到剪贴板
 * @param {string} text 需要复制的文本
 * @returns {Promise<boolean>} 是否复制成功
 */
export function copyToClipboard(text) {
	// 现代浏览器方案 (推荐)
	if (navigator.clipboard && window.isSecureContext) {
		return navigator.clipboard.writeText(text)
			.then(() => true)
			.catch(() => false);
	}

	// 传统浏览器兼容方案
	return new Promise((resolve) => {
		try {
			// 创建临时文本域
			const textarea = document.createElement('textarea');
			textarea.value = text;
			textarea.style.position = 'fixed'; // 防止滚动
			textarea.style.opacity = '0'; // 透明化
			document.body.appendChild(textarea);

			// 选中内容 (兼容iOS)
			if (navigator.userAgent.match(/ipad|ipod|iphone/i)) {
				const range = document.createRange();
				range.selectNodeContents(textarea);
				const selection = window.getSelection();
				selection.removeAllRanges();
				selection.addRange(range);
				textarea.setSelectionRange(0, 999999);
			} else {
				textarea.select();
			}

			// 执行复制命令
			const success = document.execCommand('copy');
			document.body.removeChild(textarea);
			resolve(success);
		} catch (err) {
			resolve(false);
		}
	});
}

export async function copy(value) {
	const success = await copyToClipboard(value);
	if (success) {
		uni.showToast({ //提示
			title: '复制成功'
		})
	} else {
		uni.showToast({ //提示
			title: '复制失败',

		})
	}
}


/**
 * 通用数据脱敏函数
 * @param {string} str 原始字符串
 * @param {number} start 脱敏起始位置(从0开始)
 * @param {number} end 脱敏结束位置(不包含)
 * @param {string} mask 替换字符(默认*)
 * @returns {string} 脱敏后的字符串
 */
export function dataMasking(str, start = 0, end = 0, mask = '*') {
	if (!str || typeof str !== 'string') return str
	if (start >= end) return str

	const head = str.slice(0, start)
	const tail = str.slice(end)
	const masked = mask.repeat(end - start)
	return head + masked + tail
}

// 常用预定义规则
export const MaskRules = {
	// 手机号脱敏(显示前3后4)
	mobile: (str) => dataMasking(str, 3, 7),

	// 身份证号脱敏(显示前6后4)
	idCard: (str) => {
		if (str.length === 18) return dataMasking(str, 6, 14)
		if (str.length === 15) return dataMasking(str, 6, 12)
		return str
	},

	// 银行卡号脱敏(显示前6后4)
	bankCard: (str) => dataMasking(str, 6, str.length - 4),

	// 姓名脱敏(张三 → 张*，欧阳修 → 欧**)
	name: (str) => {
		if (str.length <= 1) return str
		return dataMasking(str, 1, str.length - 1)
	}
}

// 使用示例
const sensitiveData = {
	mobile: '13812345678',
	idCard: '110101199003077654',
	bankCard: '6225880136745321',
	name: '张三丰'
}

// 脱敏处理
const maskedData = {
	mobile: MaskRules.mobile(sensitiveData.mobile), // 138****5678
	idCard: MaskRules.idCard(sensitiveData.idCard), // 110101********7654
	bankCard: MaskRules.bankCard(sensitiveData.bankCard), // 622588******5321
	name: MaskRules.name(sensitiveData.name) // 张*丰
}


/**
 * 对象转查询字符串
 * @param {object} params - 输入对象
 * @param {boolean} [encode=true] - 是否进行URL编码
 * @returns {string} 转换后的字符串
 */
export  function toQueryString(params, encode = true) {
  const processValue = (value) => {
    if (value === null || value === undefined) return ''
    if (Array.isArray(value)) return value.join(',')
    if (typeof value === 'object') return JSON.stringify(value)
    return String(value)
  }

  return Object.entries(params)
    .filter(([_, value]) => value !== null && value !== undefined)
    .map(([key, value]) => {
      const processed = processValue(value)
      return encode ? 
        `${encodeURIComponent(key)}=${encodeURIComponent(processed)}` :
        `${key}=${processed}`
    })
    .join('&')
}



/**
 * 构造树型结构数据
 * @param {*} data 数据源
 * @param {*} id id字段 默认 'id'
 * @param {*} parentId 父节点字段 默认 'parentId'
 * @param {*} children 孩子节点字段 默认 'children'
 * @param {*} rootId 根Id 默认 0
 */
export  function handleTree(data, id = 'id', parentId = 'parentId', children = 'children', rootId = 0) {
  rootId = rootId || Math.min.apply(Math, data.map(item => {
    return item[parentId]
  })) || 0
  //对源数据深度克隆
  const cloneData = JSON.parse(JSON.stringify(data))
  //循环所有项
  const treeData = cloneData.filter(father => {
    let branchArr = cloneData.filter(child => {
      //返回每一项的子级数组
      return father[id] === child[parentId]
    });
    branchArr.length > 0 ? father.children = branchArr : '';
    //返回第一层
    return father[parentId] === rootId;
  });
  return treeData !== '' ? treeData : data;
}

export function reNameKeys(data=[]) {
  return data.map(item => {
    const newItem = {
      name: item.label,
      id: item.value,
	  type: item.children ? 0 : 1
    };
    if (item.children && Array.isArray(item.children)) {
      newItem.children = reNameKeys(item.children);
    }
    return newItem;
  });
}


export function reTextKeys(data = []) {
	return data.map(item => {
		const newItem = {
			text: item.label,
			value: item.value,
			type: item.children ? 0 : 1,
			selected: item.selected || false,
		};
		if (item.children && Array.isArray(item.children)) {
			newItem.children = reTextKeys(item.children);
		}
		return newItem;
	});
}