import React, { Fragment } from 'react';
import { Dialog, DialogTitle, DialogContent, DialogActions, Box, LinearProgress, Typography, TextField } from '@material-ui/core';

import { FormButton } from '../components';
import { redirectingAuthorizedFetch } from '../authentication';
import { GENERATE_TOKEN_ENDPOINT } from '../api';
import { withSnackbar, WithSnackbarProps } from 'notistack';

interface GenerateTokenProps extends WithSnackbarProps {
    username: string;
    onClose: () => void;
}

interface GenerateTokenState {
    token?: string;
}

class GenerateToken extends React.Component<GenerateTokenProps, GenerateTokenState> {

    state: GenerateTokenState = {};

    componentDidMount() {
        const { username } = this.props;
        redirectingAuthorizedFetch(GENERATE_TOKEN_ENDPOINT + "?" + new URLSearchParams({ username }), { method: 'GET' })
            .then(response => {
                if (response.status === 200) {
                    return response.json();
                } else {
                    throw Error("Error generating token: " + response.status);
                }
            }).then(generatedToken => {
                console.log(generatedToken);
                this.setState({ token: generatedToken.token });
            })
            .catch(error => {
                this.props.enqueueSnackbar(error.message || "Problem generating token", { variant: 'error' });
            });
    }

    render() {
        const { onClose, username } = this.props;
        const { token } = this.state;
        return (
            <Dialog onClose={onClose} aria-labelledby="generate-token-dialog-title" open fullWidth maxWidth="sm">
                <DialogTitle id="generate-token-dialog-title">Token for: {username}</DialogTitle>
                <DialogContent dividers>
                    {token ?
                        <Fragment>
                            <Box bgcolor="primary.main" color="primary.contrastText" p={2} mt={2} mb={2}>
                                <Typography variant="body1">
                                    The token below may be used to access the secured APIs. This may be used for bearer authentication with the "Authorization" header or using the "access_token" query paramater.
                </Typography>
                            </Box>
                            <Box mt={2} mb={2}>
                                <TextField label="Token" multiline value={token} fullWidth contentEditable={false} />
                            </Box>
                        </Fragment>
                        :
                        <Box m={4} textAlign="center">
                            <LinearProgress />
                            <Typography variant="h6">
                                Generating token&hellip;
              </Typography>
                        </Box>
                    }
                </DialogContent>
                <DialogActions>
                    <FormButton variant="contained" color="primary" type="submit" onClick={onClose}>
                        Close
          </FormButton>
                </DialogActions>
            </Dialog>
        );
    }
}

export default withSnackbar(GenerateToken);