let DEFAULT_URL = ''
let url = decodeURIComponent(window.location.search)
let attIdIndex = url.indexOf('&fileId=')
let typeIndex = url.indexOf('?sarType=')
let numberIndex = url.indexOf('&pageNumber=')
let attId = ''
let sarType = 'INLAND_STAND'
let pageNumber = 1
let pageCount = 1
let fileId = ''
let queryAttUrl = '/api/lawss/sarStandFile/queryConvertAtt'
if (attIdIndex > -1) {
  attId = url.substring(attIdIndex + 8, url.length)
  pageNumber = url.substring(numberIndex + 12, attIdIndex)
  sarType = url.substring(typeIndex + 9, numberIndex)
  if (sarType === 'INLAND_LAWS' || sarType === 'FOREIGN_LAWS') {
    queryAttUrl = '/api/lawss/sarLawsFile/queryConvertAtt'
  } else if (sarType === 'BUSS') {
    queryAttUrl = '/api/lawss/sarBussStandFile/queryConvertAtt'
  }
  $.ajax({
    url: queryAttUrl,
    async: false,
    type: 'GET',
    data: {
      attId: attId
    },
    success: function (res) {
      // res = JSON.parse(res)
      if (res.data != null) {
        pageCount = res.data.pageCount
        if (res.data.fileOldName !== null && res.data.fileOldName !== undefined) {
          document.title = res.data.fileOldName + '-在线查看'
        }
        // $('#pageCount').html(res.data.pageCount)
        fileId = res.data.id
        getFileInfo()
      } else {
        alert('文档未转换成功或本地读取不到该文档')
      }
    },
    error: function (data) {
      alert('文档未转换成功或本地读取不到该文档')
    }
  })
}

// document.onkeydown = function () {
//   var e = window.event || arguments[0]
//   if (e.keyCode === 123) {
//     return false
//   } else if (e.ctrlKey || e.keyCode === 73) {
//     return false
//   }
// }
// document.oncontextmenu = function () {
//   return false
// }

function getFileInfo () {
  $.ajax({
    url: '/api/lawss/sarFileInfo/getPdfFileInfo',
    async: false,
    type: 'GET',
    data: {
      sarFileId: fileId,
      filePageNumber: pageNumber
    },
    success: function (res) {
      res = JSON.parse(res)
      if (res.data != null) {
        if (res.data.fileInfo != null) {
          let data = res.data.fileInfo
          let resultFileMsg = data.substring(30, data.length - 50)
          resultFileMsg = resultFileMsg.replace(/\*/g, 'A')
          let password = res.data.filePwd
          sessionStorage.setItem('fileInfoSteam', password)
          writeFile(resultFileMsg)
        }
      }
    },
    error: function (data) {
      alert('文档未转换成功或本地读取不到该文档')
    }
  })
}

function writeFile (data) {
  var BASE64_MARKER = ';base64,' // 声明文件流编码格式
  var pdfAsDataUri = data
  var pdfAsArray = convertDataURIToBinary(pdfAsDataUri)
  DEFAULT_URL = pdfAsArray
  if (Number(pageCount) > 1) {
    if (Number(pageNumber) === 1 && Number(pageNumber) !== Number(pageCount)) {
      $('#upLoadingFile').hide()
      $('#downLoadingFile').show()
    } else if (Number(pageNumber) !== 1 && Number(pageNumber) !== Number(pageCount)) {
      $('#upLoadingFile').show()
      $('#downLoadingFile').show()
    } else {
      $('#upLoadingFile').hide()
      $('#downLoadingFile').hide()
    }
  } else {
    $('#upLoadingFile').hide()
    $('#downLoadingFile').hide()
  }
}

function clickLoadFile (type) {
  if (type === 'up') {
    pageNumber = Number(pageNumber) - Number(1)
  } else {
    pageNumber = Number(pageNumber) + Number(1)
  }
  window.location.href = '/static/pdf/web/viewer.html?sarType=' + sarType + '&pageNumber=' + pageNumber + '&fileId=' + encodeURIComponent(attId)
}

function convertDataURIToBinary (dataURI) {
  var raw = window.atob(dataURI) // 这个方法在ie内核下无法正常解析。
  var rawLength = raw.length
  // 转换成pdf.js能直接解析的Uint8Array类型
  var array = new Uint8Array(new ArrayBuffer(rawLength))
  for (let i = 0; i < rawLength; i++) {
    array[i] = raw.charCodeAt(i)
  }
  return array
}