import { Box, Switch } from '@material-ui/core';
import { makeStyles } from '@material-ui/core/styles';
import { InnerPanel, PanelHeader } from '../Panels';
import { ProgressBar } from '../Bars';
import { BodyText } from '../Text';
import Decorator, { Colours } from '../Decorator';
import HOST_STATUS from '../../lib/consts/NODES';

import putJSON from '../../lib/fetchers/putJSON';
import { LARGE_MOBILE_BREAKPOINT } from '../../lib/consts/DEFAULT_THEME';

const useStyles = makeStyles((theme) => ({
  root: {
    overflow: 'auto',
    height: '28vh',
    paddingLeft: '.3em',
    paddingRight: '.3em',
    [theme.breakpoints.down(LARGE_MOBILE_BREAKPOINT)]: {
      height: '100%',
      overflow: 'hidden',
    },
  },
  state: {
    paddingLeft: '.7em',
    paddingRight: '.7em',
    paddingTop: '1em',
  },
  bar: {
    paddingLeft: '.7em',
    paddingRight: '.7em',
  },
  header: {
    paddingTop: '.3em',
    paddingRight: '.7em',
  },
  label: {
    paddingTop: '.3em',
  },
  decoratorBox: {
    paddingRight: '.3em',
  },
}));

const selectStateMessage = (regex: RegExp, message: string): string => {
  const msg = regex.exec(message);

  if (msg) {
    return HOST_STATUS.get(msg[0]) || 'Error code not recognized';
  }
  return 'Error code not found';
};

const selectDecorator = (state: string): Colours => {
  switch (state) {
    case 'online':
      return 'ok';
    case 'offline':
      return 'off';
    default:
      return 'warning';
  }
};

const AnvilHost = ({
  hosts,
}: {
  hosts: Array<AnvilStatusHost>;
}): JSX.Element => {
  const classes = useStyles();
  const stateRegex = /^[a-zA-Z]/;
  const messageRegex = /^(message_[0-9]+)/;

  return (
    <Box className={classes.root}>
      {hosts &&
        hosts.map(
          (host): JSX.Element => {
            return (
              <InnerPanel key={host.host_uuid}>
                <PanelHeader>
                  <Box display="flex" width="100%" className={classes.header}>
                    <Box flexGrow={1}>
                      <BodyText text={host.host_name} />
                    </Box>
                    <Box className={classes.decoratorBox}>
                      <Decorator colour={selectDecorator(host.state)} />
                    </Box>
                    <Box>
                      <BodyText
                        text={
                          host?.state?.replace(stateRegex, (c) =>
                            c.toUpperCase(),
                          ) || 'Not Available'
                        }
                      />
                    </Box>
                  </Box>
                </PanelHeader>
                <Box display="flex" className={classes.state}>
                  <Box className={classes.label}>
                    <BodyText text="Power: " />
                  </Box>
                  <Box flexGrow={1}>
                    <Switch
                      checked={host.state === 'online'}
                      onChange={() =>
                        putJSON('/set_power', {
                          host_uuid: host.host_uuid,
                          is_on: !(host.state === 'online'),
                        })
                      }
                    />
                  </Box>
                  <Box className={classes.label}>
                    <BodyText text="Member: " />
                  </Box>
                  <Box>
                    <Switch
                      checked={host.state === 'online'}
                      disabled={!(host.state === 'online')}
                      onChange={() =>
                        putJSON('/set_membership', {
                          host_uuid: host.host_uuid,
                          is_member: !(host.state === 'online'),
                        })
                      }
                    />
                  </Box>
                </Box>
                {host.state !== 'online' && host.state !== 'offline' && (
                  <>
                    <Box display="flex" width="100%" className={classes.state}>
                      <Box>
                        <BodyText
                          text={selectStateMessage(
                            messageRegex,
                            host.state_message,
                          )}
                        />
                      </Box>
                    </Box>
                    <Box display="flex" width="100%" className={classes.bar}>
                      <Box flexGrow={1}>
                        <ProgressBar progressPercentage={host.state_percent} />
                      </Box>
                    </Box>
                  </>
                )}
              </InnerPanel>
            );
          },
        )}
    </Box>
  );
};

export default AnvilHost;