import * as React from 'react';
import Button from '@mui/material/Button';
import Dialog from '@mui/material/Dialog';
import AppBar from '@mui/material/AppBar';
import Toolbar from '@mui/material/Toolbar';
import IconButton from '@mui/material/IconButton';
import Typography from '@mui/material/Typography';
import CloseIcon from '@mui/icons-material/Close';
import ExpandLess from '@mui/icons-material/ExpandLess';
import ExpandMore from '@mui/icons-material/ExpandMore';
import Slide from '@mui/material/Slide';
import { TransitionProps } from '@mui/material/transitions';
import {
  Box,
  Collapse,
  Input,
  MenuItem,
  Select,
  SelectChangeEvent,
  Tab,
  Tabs,
  styled,
  useTheme,
} from '@mui/material';
import { AddGroupList } from './AddGroupList';
import { UserListOfInvites } from './UserListOfInvites';
import { CustomizedSnackbars } from '../Snackbar/Snackbar';
import { getFee } from '../../background';
import { MyContext } from '../../App';
import { subscribeToEvent, unsubscribeFromEvent } from '../../utils/events';

export const Label = styled('label')`
  display: block;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 14px;
  font-weight: 400;
  margin-bottom: 4px;
`;

const Transition = React.forwardRef(function Transition(
  props: TransitionProps & {
    children: React.ReactElement;
  },
  ref: React.Ref<unknown>
) {
  return <Slide direction="up" ref={ref} {...props} />;
});

export const AddGroup = ({ address, open, setOpen }) => {
  const { show, setTxList } = React.useContext(MyContext);
  const [tab, setTab] = React.useState('create');
  const [openAdvance, setOpenAdvance] = React.useState(false);
  const [name, setName] = React.useState('');
  const [description, setDescription] = React.useState('');
  const [groupType, setGroupType] = React.useState('1');
  const [approvalThreshold, setApprovalThreshold] = React.useState('40');
  const [minBlock, setMinBlock] = React.useState('5');
  const [maxBlock, setMaxBlock] = React.useState('21600');
  const [value, setValue] = React.useState(0);
  const [openSnack, setOpenSnack] = React.useState(false);
  const [infoSnack, setInfoSnack] = React.useState(null);

  const handleChange = (event: React.SyntheticEvent, newValue: number) => {
    setValue(newValue);
  };

  const handleClose = () => {
    setOpen(false);
  };

  const handleChangeGroupType = (event: SelectChangeEvent) => {
    setGroupType(event.target.value as string);
  };

  const handleChangeApprovalThreshold = (event: SelectChangeEvent) => {
    setApprovalThreshold(event.target.value as string);
  };

  const handleChangeMinBlock = (event: SelectChangeEvent) => {
    setMinBlock(event.target.value as string);
  };

  const handleChangeMaxBlock = (event: SelectChangeEvent) => {
    setMaxBlock(event.target.value as string);
  };

  const theme = useTheme();

  const handleCreateGroup = async () => {
    try {
      if (!name) throw new Error('Please provide a name');
      if (!description) throw new Error('Please provide a description');

      const fee = await getFee('CREATE_GROUP'); // TODO translate
      await show({
        message: 'Would you like to perform an CREATE_GROUP transaction?',
        publishFee: fee.fee + ' QORT',
      });

      await new Promise((res, rej) => {
        window
          .sendMessage('createGroup', {
            groupName: name,
            groupDescription: description,
            groupType: +groupType,
            groupApprovalThreshold: +approvalThreshold,
            minBlock: +minBlock,
            maxBlock: +maxBlock,
          })
          .then((response) => {
            if (!response?.error) {
              setInfoSnack({
                type: 'success',
                message:
                  'Successfully created group. It may take a couple of minutes for the changes to propagate',
              });
              setOpenSnack(true);
              setTxList((prev) => [
                {
                  ...response,
                  type: 'created-group',
                  label: `Created group ${name}: awaiting confirmation`,
                  labelDone: `Created group ${name}: success!`,
                  done: false,
                },
                ...prev,
              ]);
              res(response);
              return;
            }
            rej({ message: response.error });
          })
          .catch((error) => {
            rej({ message: error.message || 'An error occurred' });
          });
      });
    } catch (error) {
      setInfoSnack({
        type: 'error',
        message: error?.message,
      });
      setOpenSnack(true);
    }
  };

  function CustomTabPanel(props: TabPanelProps) {
    const { children, value, index, ...other } = props;

    return (
      <div
        role="tabpanel"
        hidden={value !== index}
        id={`simple-tabpanel-${index}`}
        aria-labelledby={`simple-tab-${index}`}
        {...other}
      >
        {value === index && <Box sx={{ p: 3 }}>{children}</Box>}
      </div>
    );
  }

  function a11yProps(index: number) {
    return {
      id: `simple-tab-${index}`,
      'aria-controls': `simple-tabpanel-${index}`,
    };
  }

  const openGroupInvitesRequestFunc = () => {
    setValue(2);
  };

  React.useEffect(() => {
    subscribeToEvent('openGroupInvitesRequest', openGroupInvitesRequestFunc);

    return () => {
      unsubscribeFromEvent(
        'openGroupInvitesRequest',
        openGroupInvitesRequestFunc
      );
    };
  }, []);

  return (
    <React.Fragment>
      <Dialog
        fullScreen
        open={open}
        onClose={handleClose}
        TransitionComponent={Transition}
      >
        <AppBar
          sx={{
            position: 'relative',
            bgcolor: theme.palette.background.default,
          }}
        >
          <Toolbar>
            <Typography sx={{ ml: 2, flex: 1 }} variant="h4" component="div">
              Group Management
            </Typography>

            <IconButton
              aria-label="close"
              color="inherit"
              edge="start"
              onClick={handleClose}
            >
              <CloseIcon />
            </IconButton>

            {/* <Button autoFocus color="inherit" onClick={handleClose}>
              save
            </Button> */}
          </Toolbar>
        </AppBar>
        <Box
          sx={{
            bgcolor: theme.palette.background.default,
            color: theme.palette.text.primary,
            display: 'flex',
            flexDirection: 'column',
            flexGrow: 1,
            overflowY: 'auto',
          }}
        >
          <Box
            sx={{ borderBottom: 1, borderColor: theme.palette.text.secondary }}
          >
            <Tabs
              value={value}
              onChange={handleChange}
              aria-label="basic tabs example"
              variant={'fullWidth'}
              scrollButtons="auto"
              allowScrollButtonsMobile
              sx={{
                '& .MuiTabs-indicator': {
                  backgroundColor: theme.palette.background.default,
                },
              }}
            >
              <Tab
                label="Create Group"
                {...a11yProps(0)}
                sx={{
                  '&.Mui-selected': {
                    color: theme.palette.text.primary,
                  },
                  fontSize: '1rem',
                }}
              />
              <Tab
                label="Find Group"
                {...a11yProps(1)}
                sx={{
                  '&.Mui-selected': {
                    color: theme.palette.text.primary,
                  },
                  fontSize: '1rem',
                }}
              />
              <Tab
                label="Group Invites"
                {...a11yProps(2)}
                sx={{
                  '&.Mui-selected': {
                    color: theme.palette.text.primary,
                  },
                  fontSize: '1rem',
                }}
              />
            </Tabs>
          </Box>

          {value === 0 && (
            <Box
              sx={{
                width: '100%',
                padding: '25px',
              }}
            >
              <Box
                sx={{
                  display: 'flex',
                  flexDirection: 'column',
                  gap: '20px',
                  maxWidth: '500px',
                }}
              >
                <Box
                  sx={{
                    display: 'flex',
                    flexDirection: 'column',
                    gap: '5px',
                  }}
                >
                  <Label>Name of group</Label>
                  <Input
                    placeholder="Name of group"
                    value={name}
                    onChange={(e) => setName(e.target.value)}
                  />
                </Box>
                <Box
                  sx={{
                    display: 'flex',
                    flexDirection: 'column',
                    gap: '5px',
                  }}
                >
                  <Label>Description of group</Label>

                  <Input
                    placeholder="Description of group"
                    value={description}
                    onChange={(e) => setDescription(e.target.value)}
                  />
                </Box>
                <Box
                  sx={{
                    display: 'flex',
                    flexDirection: 'column',
                    gap: '5px',
                  }}
                >
                  <Label>Group type</Label>
                  <Select
                    labelId="demo-simple-select-label"
                    id="demo-simple-select"
                    value={groupType}
                    label="Group Type"
                    onChange={handleChangeGroupType}
                  >
                    <MenuItem value={1}>Open (public)</MenuItem>
                    <MenuItem value={0}>
                      Closed (private) - users need permission to join
                    </MenuItem>
                  </Select>
                </Box>
                <Box
                  sx={{
                    display: 'flex',
                    gap: '15px',
                    alignItems: 'center',
                    cursor: 'pointer',
                  }}
                  onClick={() => setOpenAdvance((prev) => !prev)}
                >
                  <Typography>Advanced options</Typography>

                  {openAdvance ? <ExpandLess /> : <ExpandMore />}
                </Box>
                <Collapse in={openAdvance} timeout="auto" unmountOnExit>
                  <Box
                    sx={{
                      display: 'flex',
                      flexDirection: 'column',
                      gap: '5px',
                    }}
                  >
                    <Label>
                      Group Approval Threshold (number / percentage of Admins
                      that must approve a transaction)
                    </Label>
                    <Select
                      labelId="demo-simple-select-label"
                      id="demo-simple-select"
                      value={approvalThreshold}
                      label="Group Approval Threshold"
                      onChange={handleChangeApprovalThreshold}
                    >
                      <MenuItem value={0}>NONE</MenuItem>
                      <MenuItem value={1}>ONE </MenuItem>

                      <MenuItem value={20}>20% </MenuItem>
                      <MenuItem value={40}>40% </MenuItem>
                      <MenuItem value={60}>60% </MenuItem>
                      <MenuItem value={80}>80% </MenuItem>
                      <MenuItem value={100}>100% </MenuItem>
                    </Select>
                  </Box>
                  <Box
                    sx={{
                      display: 'flex',
                      flexDirection: 'column',
                      gap: '5px',
                    }}
                  >
                    <Label>
                      Minimum Block delay for Group Transaction Approvals
                    </Label>
                    <Select
                      labelId="demo-simple-select-label"
                      id="demo-simple-select"
                      value={minBlock}
                      label="Minimum Block delay"
                      onChange={handleChangeMinBlock}
                    >
                      <MenuItem value={5}>5 minutes</MenuItem>
                      <MenuItem value={10}>10 minutes</MenuItem>
                      <MenuItem value={30}>30 minutes</MenuItem>
                      <MenuItem value={60}>1 hour</MenuItem>
                      <MenuItem value={180}>3 hours</MenuItem>
                      <MenuItem value={300}>5 hours</MenuItem>
                      <MenuItem value={420}>7 hours</MenuItem>
                      <MenuItem value={720}>12 hours</MenuItem>
                      <MenuItem value={1440}>1 day</MenuItem>
                      <MenuItem value={4320}>3 days</MenuItem>
                      <MenuItem value={7200}>5 days</MenuItem>
                      <MenuItem value={10080}>7 days</MenuItem>
                    </Select>
                  </Box>
                  <Box
                    sx={{
                      display: 'flex',
                      flexDirection: 'column',
                      gap: '5px',
                    }}
                  >
                    <Label>
                      Maximum Block delay for Group Transaction Approvals
                    </Label>
                    <Select
                      labelId="demo-simple-select-label"
                      id="demo-simple-select"
                      value={maxBlock}
                      label="Maximum Block delay"
                      onChange={handleChangeMaxBlock}
                    >
                      <MenuItem value={60}>1 hour</MenuItem>
                      <MenuItem value={180}>3 hours</MenuItem>
                      <MenuItem value={300}>5 hours</MenuItem>
                      <MenuItem value={420}>7 hours</MenuItem>
                      <MenuItem value={720}>12 hours</MenuItem>
                      <MenuItem value={1440}>1 day</MenuItem>
                      <MenuItem value={4320}>3 days</MenuItem>
                      <MenuItem value={7200}>5 days</MenuItem>
                      <MenuItem value={10080}>7 days</MenuItem>
                      <MenuItem value={14400}>10 days</MenuItem>
                      <MenuItem value={21600}>15 days</MenuItem>
                    </Select>
                  </Box>
                </Collapse>
                <Box
                  sx={{
                    display: 'flex',
                    width: '100%',
                    justifyContent: 'center',
                  }}
                >
                  <Button
                    variant="contained"
                    color="primary"
                    onClick={handleCreateGroup}
                  >
                    Create Group
                  </Button>
                </Box>
              </Box>
            </Box>
          )}
          {value === 1 && (
            <Box
              sx={{
                display: 'flex',
                flexDirection: 'column',
                flexGrow: 1,
                padding: '25px',
                width: '100%',
              }}
            >
              <AddGroupList
                setOpenSnack={setOpenSnack}
                setInfoSnack={setInfoSnack}
              />
            </Box>
          )}

          {value === 2 && (
            <Box
              sx={{
                display: 'flex',
                flexDirection: 'column',
                flexGrow: 1,
                padding: '25px',
                width: '100%',
              }}
            >
              <UserListOfInvites
                myAddress={address}
                setOpenSnack={setOpenSnack}
                setInfoSnack={setInfoSnack}
              />
            </Box>
          )}
        </Box>

        <CustomizedSnackbars
          open={openSnack}
          setOpen={setOpenSnack}
          info={infoSnack}
          setInfo={setInfoSnack}
        />
      </Dialog>
    </React.Fragment>
  );
};