import { getDeviceInfo } from "@/utils/system";
import {
  saveRecord,
  viewRecord,
  createShareToken,
  createTracking,
} from "@/api/system";

export const FILE_BASE_URL = "https://file.lihailezzc.com/";

export const generateObjectId = (
  m = Math,
  d = Date,
  h = 16,
  s = (s) => m.floor(s).toString(h),
) => s(d.now() / 1000) + " ".repeat(h).replace(/./g, () => s(m.random() * h));

export const uploadImage = (filePath) => {
  return new Promise((resolve, reject) => {
    uni.uploadFile({
      url: "https://api.ai-meng.com/api/common/upload",
      filePath: filePath,
      name: "file",
      header: {
        "x-app-id": "69665538a49b8ae3be50fe5d",
      },
      success: (res) => {
        if (res.statusCode < 400) {
          try {
            const keyJson = JSON.parse(res.data);
            if (keyJson?.data?.result === "auditFailed") {
              reject("图片不符合发布规范，请稍作修改后再试");
            } else {
              resolve(keyJson?.data.key);
            }
          } catch (e) {
            reject(e);
          }
        } else {
          reject(new Error("Upload failed"));
        }
      },
      fail: (err) => {
        reject(err);
      },
    });
  });
};

/**
 * 统一的选择并上传图片的方法
 * @param {Object} options 配置项
 * @param {number} options.count 最多可选择的图片数量，默认为 1
 * @param {string} options.loadingTitle 上传中提示文案，默认为 '上传中...'
 * @returns {Promise<string[]>} 返回一个包含所有上传成功图片 URL 的数组 Promise
 */
export const chooseAndUploadImage = (options = {}) => {
  const { count = 1, loadingTitle = '上传中...' } = options;

  return new Promise((resolve, reject) => {
    uni.chooseImage({
      count,
      success: async (res) => {
        const filePaths = res.tempFilePaths;
        if (!filePaths || filePaths.length === 0) {
          return resolve([]);
        }

        uni.showLoading({ title: loadingTitle });
        try {
          // 并发上传所有选中的图片
          const uploadPromises = filePaths.map(path => uploadImage(path));
          const urls = await Promise.all(uploadPromises);
          uni.hideLoading();
          resolve(urls);
        } catch (error) {
          uni.hideLoading();
          uni.showToast({
            title: "上传失败",
            icon: "none",
          });
          console.error("图片上传异常:", error);
          reject(error);
        }
      },
      fail: (err) => {
        // 用户取消选择不作为异常抛出，返回空数组
        if (err.errMsg && err.errMsg.indexOf('cancel') !== -1) {
          resolve([]);
        } else {
          reject(err);
        }
      }
    });
  });
};

export const saveRecordRequest = async (path, targetId, scene, imageUrl) => {
  if (!imageUrl) {
    imageUrl = await uploadImage(path);
  }
  const deviceInfo = getDeviceInfo();
  saveRecord({
    scene,
    targetId,
    imageUrl,
    deviceInfo,
  });
};

export const saveViewRequest = async (shareToken, scene, targetId = "") => {
  const deviceInfo = getDeviceInfo();
  viewRecord({
    shareToken,
    scene,
    targetId,
    deviceInfo,
  });
};

export const saveRemoteImageToLocal = (imageUrl) => {
  return new Promise((resolve, reject) => {
    uni.downloadFile({
      url: imageUrl,
      success: (res) => {
        if (res.statusCode === 200) {
          uni.saveImageToPhotosAlbum({
            filePath: res.tempFilePath,
            success: () => {
              resolve(true);
            },
            fail: (err) => {
              reject(err);
            },
          });
        } else {
          reject(
            new Error("Download failed with status code: " + res.statusCode),
          );
        }
      },
      fail: (err) => {
        reject(err);
      },
    });
  });
};

export const getShareToken = async (scene, targetId = "") => {
  const deviceInfo = getDeviceInfo();
  const shareTokenRes = await createShareToken({
    scene,
    targetId,
    ...deviceInfo,
  });
  return shareTokenRes?.shareToken || "";
};

export const trackRecord = (event) => {
  const pages = getCurrentPages();
  // 核心修复：在小程序刚启动或页面尚未压栈时，pages 可能为空数组
  const currentPage = pages && pages.length > 0 ? pages[pages.length - 1] : null;
  const route = currentPage ? currentPage.route : "app_launch";

  const deviceInfo = getDeviceInfo();
  createTracking({
    ...event,
    page: route,
    deviceInfo,
  });
};

export const getThumbUrl = (url) => {
  if (!url) return "";
  return `${url}?imageView2/1/w/200/h/200/q/80`;
};