import Taro from '@tarojs/taro'

export default function navTo(url: string, isLogin = false) {
  if (isLogin) {
    if (!Taro.getStorageSync('access_token') || !Taro.getStorageSync('UserId')) {
      Taro.showToast({
        title: '请先登录',
        icon: 'none',
        duration: 500
      });
      return false;
    }
  }
  Taro.navigateTo({
    url: url
  })
}


// 转base64
export function fileToBase64(filePath: string) {
  return new Promise((resolve) => {
    let fileManager = Taro.getFileSystemManager();
    fileManager.readFile({
      filePath,
      encoding: 'base64',
      success: (e: any) => {
        resolve(`data:image/jpg;base64,${e.data}`);
      }
    });
  });
};

/**
 * 转义微信富文本图片样式
 * @param htmlText
 */
export function wxParse(htmlText: string) {
  // Replace <img> tags with max-width, height and margin styles to remove spacing
  htmlText = htmlText.replace(/\<img/gi, '<img style="max-width:100%;height:auto;margin:0;padding:0;display:block;"');

  // Replace style attributes that do not contain text-align, add margin:0 to remove spacing
  htmlText = htmlText.replace(/style\s*?=\s*?(['"])(?!.*?text-align)[\s\S]*?\1/ig, 'style="max-width:100%;height:auto;margin:0;padding:0;display:block;"');

  return htmlText;
}


export function copyText(text: string) {
  Taro.setClipboardData({
    data: text,
    success: function () {
      Taro.showToast({
        title: '复制成功',
        icon: 'success',
        duration: 2000
      });
    },
    fail: function () {
      Taro.showToast({
        title: '复制失败',
        icon: 'none',
        duration: 2000
      });
    }
  });
}

/**
 * 分享商品链接
 * @param goodsId 商品ID
 */
export function shareGoodsLink(goodsId: string | number) {
  // 构建分享链接，这里需要根据你的实际域名调整
  const baseUrl = 'https://your-domain.com'; // 请替换为你的实际域名
  const shareUrl = `${baseUrl}/shop/goodsDetail/index?id=${goodsId}`;

  copyText(shareUrl);
}

/**
 * 显示分享引导提示
 */
export function showShareGuide() {
  Taro.showModal({
    title: '分享提示',
    content: '请点击右上角的"..."按钮，然后选择"转发"来分享给好友，或选择"分享到朋友圈"',
    showCancel: false,
    confirmText: '知道了'
  });
}

/**
 * 截取字符串，确保不超过指定的汉字长度
 * @param text 原始文本
 * @param maxLength 最大汉字长度，默认30
 * @returns 截取后的文本
 */
export function truncateText(text: string, maxLength: number = 30): string {
  if (!text) return '';

  // 如果长度不超过限制，直接返回
  if (text.length <= maxLength) {
    return text;
  }

  // 超过长度则截取
  return text.substring(0, maxLength);
}

/**
 * 格式化货币
 * @param amount
 * @param currency
 */
export function formatCurrency(amount: number, currency: string = 'CNY'): string {
  return new Intl.NumberFormat('zh-CN', {
    style: 'currency',
    currency: currency,
    minimumFractionDigits: 2,
    maximumFractionDigits: 2
  }).format(amount);
}

/**
 * 生成订单标题
 * @param goodsNames 商品名称数组
 * @param maxLength 最大长度，默认30
 * @returns 订单标题
 */
export function generateOrderTitle(goodsNames: string[], maxLength: number = 30): string {
  if (!goodsNames || goodsNames.length === 0) {
    return '商品订单';
  }

  let title = '';
  if (goodsNames.length === 1) {
    title = goodsNames[0];
  } else {
    title = `${goodsNames[0]}等${goodsNames.length}件商品`;
  }

  return truncateText(title, maxLength);
}

/**
 * 下划线转驼峰命名
 */
export function toCamelCase(str: string): string {
  return str.replace(/_([a-z])/g, function (_, letter) {
    return letter.toUpperCase();
  });
}

/**
 * 下划线转大驼峰命名
 */
export function toCamelCaseUpper(str: string): string {
  return toCamelCase(str).replace(/^[a-z]/, function (letter) {
    return letter.toUpperCase();
  });
}

/**
 * 转为短下划线
 */
export function toShortUnderline(str: string): string {
  return str.replace(/[A-Z]/g, function (letter) {
    return '_' + letter.toLowerCase();
  }).replace(/^_/, '');
}