import PropTypes from '../_util/vue-types';

export default {
  name: 'Pager',
  props: {
    rootPrefixCls: PropTypes.string,
    page: PropTypes.number,
    active: PropTypes.bool,
    last: PropTypes.bool,
    locale: PropTypes.object,
    showTitle: PropTypes.bool,
    itemRender: {
      type: Function,
      default: () => {},
    },
  },
  computed: {
    classes() {
      const prefixCls = `${this.rootPrefixCls}-item`;
      let cls = `${prefixCls} ${prefixCls}-${this.page}`;
      if (this.active) {
        cls = `${cls} ${prefixCls}-active`;
      }
      return cls;
    },
  },
  methods: {
    handleClick() {
      this.$emit('click', this.page);
    },
    handleKeyPress(event) {
      this.$emit('keypress', event, this.handleClick, this.page);
    },
  },
  render() {
    const { rootPrefixCls, page, active } = this;
    const prefixCls = `${rootPrefixCls}-item`;
    let cls = `${prefixCls} ${prefixCls}-${page}`;

    if (active) {
      cls = `${cls} ${prefixCls}-active`;
    }

    if (!page) {
      cls = `${cls} ${prefixCls}-disabled`;
    }

    return (
      <li
        class={cls}
        onClick={this.handleClick}
        onKeypress={this.handleKeyPress}
        title={this.showTitle ? this.page : null}
        tabIndex="0"
      >
        {this.itemRender(this.page, 'page', <a>{this.page}</a>)}
      </li>
    );
  },
};