import "./App.css";
import names from "./players.json";
import * as React from "react";
import { Theme, useTheme } from "@mui/material/styles";
import Box from "@mui/material/Box";
import OutlinedInput from "@mui/material/OutlinedInput";
import InputLabel from "@mui/material/InputLabel";
import MenuItem from "@mui/material/MenuItem";
import FormControl from "@mui/material/FormControl";
import Select, { SelectChangeEvent } from "@mui/material/Select";
import Chip from "@mui/material/Chip";
import {
  Alert,
  Button,
  Dialog,
  DialogTitle,
  FormHelperText,
  Stack,
} from "@mui/material";

function getStyles(name: string, players: readonly string[], theme: Theme) {
  return {
    fontWeight: players.includes(name)
      ? theme.typography.fontWeightMedium
      : theme.typography.fontWeightRegular,
  };
}

async function submit(
  person: string,
  players: string[],
  setResponseStatus: (value: number) => void
) {
  // console.log(JSON.stringify({ person: person, players: players }));
  const response = await fetch("https://0124816.xyz/team/submit/", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ person: person, players: players }),
  });
  setResponseStatus(response.status);
}

type SubmitButtonProps = {
  person: string;
  players: string[];
};

function SubmitButton(props: SubmitButtonProps) {
  const [responseStatus, setResponseStatus] = React.useState(0);

  return (
    <div>
      <Button
        variant="contained"
        color={responseStatus === 200 ? "success" : "primary"}
        onClick={() => submit(props.person, props.players, setResponseStatus)}
      >
        submit
      </Button>
      <Dialog open={responseStatus === 200}>
        <DialogTitle>thank you. please leave now.</DialogTitle>
      </Dialog>
    </div>
  );
}

type MultiSelectProps = {
  person: string;
  setPerson: (value: string) => void;
  players: string[];
  setPlayers: (value: string[]) => void;
};

function MultipleSelectChip(props: MultiSelectProps) {
  const ITEM_HEIGHT = 48;
  const ITEM_PADDING_TOP = 8;
  const MenuProps = {
    PaperProps: {
      style: {
        maxHeight: ITEM_HEIGHT * 6.5 + ITEM_PADDING_TOP,
        width: 250,
      },
    },
  };
  const [alert, setAlert] = React.useState<string>("none");
  const maxLimit = 9;
  const theme = useTheme();

  const handlePersonChange = (
    event: SelectChangeEvent<typeof props.person>
  ) => {
    const {
      target: { value },
    } = event;
    props.setPerson(value);
    const index = props.players.indexOf(value);
    if (index > -1) {
      props.players.splice(index, 1);
    }
    props.setPlayers(props.players);
  };

  const handleChange = (event: SelectChangeEvent<typeof props.players>) => {
    const {
      target: { value },
    } = event;
    if (value.length <= maxLimit) {
      setAlert("none");
      props.setPlayers(
        // On autofill we get a stringified value.
        typeof value === "string" ? value.split(",") : value
      );
    } else {
      setAlert("");
    }
  };

  return (
    <Box sx={{ maxWidth: "60vw" }}>
      <Stack direction="column">
        <FormControl sx={{ m: "8px auto", width: 200 }}>
          <InputLabel id="demo-multiple-chip-label">who are you?</InputLabel>
          <Select
            labelId="demo-chip-label"
            id="demo-multiple-chip"
            value={props.person}
            onChange={handlePersonChange}
            input={<OutlinedInput id="select-chip" label="who are you?" />}
            MenuProps={MenuProps}
          >
            {names.map((name) => (
              <MenuItem key={name} value={name}>
                {name}
              </MenuItem>
            ))}
          </Select>
        </FormControl>

        <Alert
          severity="warning"
          sx={{ display: alert, width: 200, m: "8px auto" }}
        >
          do not select more than {maxLimit} players
        </Alert>

        <FormControl sx={{ m: "8px auto", width: 200 }}>
          <InputLabel id="demo-multiple-chip-label">players</InputLabel>
          <Select
            labelId="demo-multiple-chip-label"
            id="demo-multiple-chip"
            multiple
            value={props.players}
            onChange={handleChange}
            input={<OutlinedInput id="select-multiple-chip" label="players" />}
            renderValue={(selected) => (
              <Box sx={{ display: "flex", flexWrap: "wrap", gap: 0.5 }}>
                {selected.map((value) => (
                  <Chip key={value} label={value} />
                ))}
              </Box>
            )}
            MenuProps={MenuProps}
          >
            {names.map((name) =>
              name !== props.person ? (
                <MenuItem
                  key={name}
                  value={name}
                  style={getStyles(name, props.players, theme)}
                >
                  {name}
                </MenuItem>
              ) : null
            )}
          </Select>
          <FormHelperText>max. {maxLimit}</FormHelperText>
        </FormControl>
      </Stack>
    </Box>
  );
}

function App() {
  const [person, setPerson] = React.useState<string>("");
  const [players, setPlayers] = React.useState<string[]>([]);

  return (
    <>
      <h1>choose your best buddies for the Igloo</h1>
      <div className="card">
        {MultipleSelectChip({ person, setPerson, players, setPlayers })}
        {SubmitButton({ person, players })}
        <p>now: click submit.</p>
      </div>
      <p className="read-the-docs">
        something not working? message <a href="https://t.me/x0124816">me</a>.
      </p>
    </>
  );
}

export default App;