import React from "react";
import {
  useTheme,
  makeStyles,
  Theme,
  createStyles,
} from "@material-ui/core/styles";
import IconButton from "@material-ui/core/IconButton";
import FirstPageIcon from "@material-ui/icons/FirstPage";
import KeyboardArrowLeft from "@material-ui/icons/KeyboardArrowLeft";
import KeyboardArrowRight from "@material-ui/icons/KeyboardArrowRight";
import LastPageIcon from "@material-ui/icons/LastPage";

const useStyles = makeStyles((theme: Theme) =>
  createStyles({
    root: {
      flexShrink: 0,
      marginLeft: theme.spacing(2.5),
    },
  })
);

interface TablePaginationActionsProps {
  count: number;
  page: number;
  rowsPerPage: number;
  onChangePage: (
    event: React.MouseEvent<HTMLButtonElement>,
    newPage: number
  ) => void;
}

function TablePaginationActions(props: TablePaginationActionsProps) {
  const classes = useStyles();
  const theme = useTheme();
  const { count, page, rowsPerPage, onChangePage } = props;

  const handleFirstPageButtonClick = (
    event: React.MouseEvent<HTMLButtonElement>
  ) => {
    onChangePage(event, 0);
  };

  const handleBackButtonClick = (
    event: React.MouseEvent<HTMLButtonElement>
  ) => {
    onChangePage(event, page - 1);
  };

  const handleNextButtonClick = (
    event: React.MouseEvent<HTMLButtonElement>
  ) => {
    onChangePage(event, page + 1);
  };

  const handleLastPageButtonClick = (
    event: React.MouseEvent<HTMLButtonElement>
  ) => {
    onChangePage(event, Math.max(0, Math.ceil(count / rowsPerPage) - 1));
  };

  return (
    <div className={classes.root}>
      <IconButton
        onClick={handleFirstPageButtonClick}
        disabled={page === 0}
        aria-label="first page"
      >
        {theme.direction === "rtl" ? <LastPageIcon /> : <FirstPageIcon />}
      </IconButton>
      <IconButton
        onClick={handleBackButtonClick}
        disabled={page === 0}
        aria-label="previous page"
      >
        {theme.direction === "rtl" ? (
          <KeyboardArrowRight />
        ) : (
          <KeyboardArrowLeft />
        )}
      </IconButton>
      <IconButton
        onClick={handleNextButtonClick}
        disabled={page >= Math.ceil(count / rowsPerPage) - 1}
        aria-label="next page"
      >
        {theme.direction === "rtl" ? (
          <KeyboardArrowLeft />
        ) : (
          <KeyboardArrowRight />
        )}
      </IconButton>
      <IconButton
        onClick={handleLastPageButtonClick}
        disabled={page >= Math.ceil(count / rowsPerPage) - 1}
        aria-label="last page"
      >
        {theme.direction === "rtl" ? <FirstPageIcon /> : <LastPageIcon />}
      </IconButton>
    </div>
  );
}

export default TablePaginationActions;

export const rowsPerPageOptions = [10, 20, 30, 60, 100];
export const defaultPageSize = 20;