"use strict";
const qiniuUploader = function() {
  var config = {
    qiniuRegion: "",
    qiniuImageURLPrefix: "",
    qiniuUploadToken: "",
    qiniuUploadTokenURL: "",
    qiniuUploadTokenFunction: null,
    qiniuShouldUseQiniuFileName: false
  };
  function init(options) {
    config = {
      qiniuRegion: "",
      qiniuImageURLPrefix: "",
      qiniuUploadToken: "",
      qiniuUploadTokenURL: "",
      qiniuUploadTokenFunction: null,
      qiniuShouldUseQiniuFileName: false
    };
    updateConfigWithOptions(options);
  }
  function updateConfigWithOptions(options) {
    if (options.region) {
      config.qiniuRegion = options.region;
    } else {
      console.error("qiniu uploader need your bucket region");
    }
    if (options.uptoken) {
      config.qiniuUploadToken = options.uptoken;
    } else if (options.uptokenURL) {
      config.qiniuUploadTokenURL = options.uptokenURL;
    } else if (options.uptokenFunc) {
      config.qiniuUploadTokenFunction = options.uptokenFunc;
    }
    if (options.domain) {
      config.qiniuImageURLPrefix = options.domain;
    }
    config.qiniuShouldUseQiniuFileName = options.shouldUseQiniuFileName;
  }
  function upload(filePath, success, fail, options, progress, cancelTask) {
    if (filePath == null) {
      console.error("qiniu uploader need filePath to upload");
      return;
    }
    if (options) {
      updateConfigWithOptions(options);
    }
    if (config.qiniuUploadToken) {
      doUpload(filePath, success, fail, options, progress, cancelTask);
    } else if (config.qiniuUploadTokenURL) {
      getQiniuToken(function() {
        doUpload(filePath, success, fail, options, progress, cancelTask);
      });
    } else if (config.qiniuUploadTokenFunction) {
      config.qiniuUploadToken = config.qiniuUploadTokenFunction();
      if (config.qiniuUploadToken == null && config.qiniuUploadToken.length > 0) {
        console.error("qiniu UploadTokenFunction result is null, please check the return value");
        return;
      }
      doUpload(filePath, success, fail, options, progress, cancelTask);
    } else {
      console.error("qiniu uploader need one of [uptoken, uptokenURL, uptokenFunc]");
      return;
    }
  }
  function doUpload(filePath, success, fail, options, progress, cancelTask) {
    if (config.qiniuUploadToken == null && config.qiniuUploadToken.length > 0) {
      console.error("qiniu UploadToken is null, please check the init config or networking");
      return;
    }
    var url = uploadURLFromRegionCode(config.qiniuRegion);
    var fileName = filePath.split("//")[1];
    if (options && options.key) {
      fileName = options.key;
    }
    var formData = {
      "token": config.qiniuUploadToken
    };
    if (!config.qiniuShouldUseQiniuFileName) {
      formData["key"] = fileName;
    }
    var uploadTask = wx.uploadFile({
      url,
      filePath,
      name: "file",
      formData,
      success: function(res) {
        var dataString = res.data;
        if (res.data.hasOwnProperty("type") && res.data.type === "Buffer") {
          dataString = String.fromCharCode.apply(null, res.data.data);
        }
        try {
          var dataObject = JSON.parse(dataString);
          var imageUrl = config.qiniuImageURLPrefix + "/" + dataObject.key;
          dataObject.imageURL = imageUrl;
          if (success) {
            success(dataObject);
          }
        } catch (e) {
          console.log("parse JSON failed, origin String is: " + dataString);
          if (fail) {
            fail(e);
          }
        }
      },
      fail: function(error) {
        console.error(error);
        if (fail) {
          fail(error);
        }
      }
    });
    uploadTask.onProgressUpdate((res) => {
      progress && progress(res);
    });
    cancelTask && cancelTask(() => {
      uploadTask.abort();
    });
  }
  function getQiniuToken(callback) {
    wx.request({
      url: config.qiniuUploadTokenURL,
      success: function(res) {
        var token = res.data.uptoken;
        if (token && token.length > 0) {
          config.qiniuUploadToken = token;
          if (callback) {
            callback();
          }
        } else {
          console.error("qiniuUploader cannot get your token, please check the uptokenURL or server");
        }
      },
      fail: function(error) {
        console.error("qiniu UploadToken is null, please check the init config or networking: " + error);
      }
    });
  }
  function uploadURLFromRegionCode(code) {
    var uploadURL = null;
    switch (code) {
      case "ECN":
        uploadURL = "https://up.qbox.me";
        break;
      case "NCN":
        uploadURL = "https://up-z1.qbox.me";
        break;
      case "SCN":
        uploadURL = "https://up-z2.qbox.me";
        break;
      case "NA":
        uploadURL = "https://up-na0.qbox.me";
        break;
      case "ASG":
        uploadURL = "https://up-as0.qbox.me";
        break;
      default:
        console.error("please make the region is with one of [ECN, SCN, NCN, NA, ASG]");
    }
    return uploadURL;
  }
  return {
    init,
    upload
  };
}();
exports.qiniuUploader = qiniuUploader;