export default {// 设置选中的方法
// 记忆选择核心方法
  changePageCoreRecordData: function (multipleSelectionAll, multipleSelection, tableData, successFn) {
    // 标识当前行的唯一键的名称
    const idKey = 'uid'
    const that = this
    // 如果总记忆中还没有选择的数据，那么就直接取当前页选中的数据，不需要后面一系列计算
    if (multipleSelectionAll.length <= 0) {
     multipleSelectionAll=multipleSelection
      console.log(multipleSelectionAll)
      successFn(multipleSelectionAll)
      return
    }
    // 总选择里面的key集合
    const selectAllIds = []
    multipleSelectionAll.forEach(row => {
      selectAllIds.push(row[idKey])
    })
    const selectIds = []
    // 获取当前页选中的id
    multipleSelection.forEach(row => {
      selectIds.push(row[idKey])
      // 如果总选择里面不包含当前页选中的数据，那么就加入到总选择集合里
      if (selectAllIds.indexOf(row[idKey]) < 0) {
        multipleSelectionAll.push(row)
        console.log(multipleSelectionAll)
       // successFn(multipleSelectionAll)
      }
    })
    const noSelectIds = []
    // 得到当前页没有选中的id
    tableData.forEach(row => {
      if (selectIds.indexOf(row[idKey]) < 0) {
        noSelectIds.push(row[idKey])
      }
    })
    noSelectIds.forEach(uid => {
      if (selectAllIds.indexOf(uid) >= 0) {
        for (let i = 0; i < multipleSelectionAll.length; i++) {
          if (multipleSelectionAll[i][idKey] == uid) {
            // 如果总选择中有未被选中的，那么就删除这条
            multipleSelectionAll.splice(i, 1)
            console.log(multipleSelectionAll)
            //successFn(multipleSelectionAll)
            break
          }
        }
      }
    })
    successFn(multipleSelectionAll)
  }
}
