$(function () {
  var SEOPagination = {
      data: {
          pageNum: 1, // 当前页码
          pageTotal: 1, // 总共多少页面
      },
      el: '.seo-pagination',
      $el: '',
      init: function () {
          this.initVars()
          this.addJumpDOM()
          this.initData()
          this.initEvents()
      },
      initVars: function () {
          this.$el = $(this.el)
      },
      initData: function () {
          var pager = this.$el.find('.el-pager')
          this.data.pageNum = pager.attr('data-page-num') - 0
          this.data.pageTotal = pager.attr('data-page-total') - 0
      },
      initEvents: function () {
          // quicknext事件
          $('.seo-pagination .prev-more, .seo-pagination .next-more').on('mouseover', function () {
              var $this = $(this)
              if ($this.hasClass('prev-more')) {
                  $this.find('.el-icon').removeClass().addClass('el-icon el-icon-d-arrow-left')
              } else {
                  $this.find('.el-icon').removeClass().addClass('el-icon el-icon-d-arrow-right')
              }
          }).on('mouseleave', function () {
              var $this = $(this)
              $this.find('.el-icon').removeClass().addClass('el-icon el-icon-more')
          })
          this.jumpDOMEvents()
      },
      addJumpDOM: function () {
          var jumpDOM = '<span class="el-pagination__jump">跳到<div class="el-input el-pagination__editor is-in-pagination"><input type="number" autocomplete="off" min="1" max="70" class="el-input__inner"></div>页<span class="el-pagination__confirm">确定</span></span>'
          this.$el.find('.el-pager').after(jumpDOM)
      },
      jumpDOMEvents: function () {
          var _this = this
          this.$el.find('.el-input__inner').on('keydown', function (e) {
              // 回车事件
              if (e.keyCode === 13) {
                  _this.doPageChange()
              }
          })
          this.$el.find('.el-pagination__confirm').on('click', function (e) {
              _this.doPageChange()
          })
      },
      // 获取jump输入框内数组
      getJumpNum: function () {
          return this.$el.find('.el-input__inner').val() - 0
      },
      doPageChange: function () {
          // 计算页码
          var nextPageNum = this.getJumpNum()
          var pageTotal = this.data.pageTotal
          var pageNum = this.data.pageNum
          if (nextPageNum <= 0) {
              nextPageNum = 1
          } else if (nextPageNum === pageNum) {
              // 不做任何操作
              return
          } else if (nextPageNum > pageTotal) {
              nextPageNum = pageTotal
          }
          this.onPageChange(nextPageNum)
      },
      onPageChange: function (p) {
          console.log(p)
          try {
              onSEOPaginationChange && onSEOPaginationChange(p)
          } catch (error) {
              console.warn(error)
          }

      }
  }
  SEOPagination.init()
})