import * as React from "react";
import { makeStyles } from "@material-ui/styles";
import Breadcrumbs from "@material-ui/core/Breadcrumbs";
import Link from "@material-ui/core/Link";
import Typography from "@material-ui/core/Typography";
import { useLocation } from "react-router-dom";

const useStyles = makeStyles({
  root: {
    alignItems: "center",
    display: "flex",
    flexFlow: "row",
    width: "100%",
    marginTop: "10px",
  },
  context: {
    flex: "1 0 auto",
  },
  actions: {
    flex: "0 0 auto",
  },
});

const Header = (props) => {
  const classes = useStyles();
  const { title, breadcrumbs } = props;
  const { pathname } = useLocation();

  const headerTitle = pathname === "/cloud" ? "Cloud Costs" : "Cost Allocation";

  return (
    <div className={classes.root}>
      <Typography variant="h3" style={{ marginBottom: "10px" }}>
        {headerTitle}
      </Typography>
      <div className={classes.context}>
        {title && (
          <Typography variant="h4" className={classes.title}>
            {props.title}
          </Typography>
        )}
        {breadcrumbs && breadcrumbs.length > 0 && (
          <Breadcrumbs aria-label="breadcrumb">
            {breadcrumbs.slice(0, breadcrumbs.length - 1).map((b) => (
              <Link color="inherit" href={b.href} key={b.name}>
                {b.name}
              </Link>
            ))}
            <Typography color="textPrimary">
              {breadcrumbs[breadcrumbs.length - 1].name}
            </Typography>
          </Breadcrumbs>
        )}
      </div>
      <div className={classes.actions}>{props.children}</div>
    </div>
  );
};

export default Header;