import { Theme } from '@mui/material';
import React, { ReactElement, useCallback, useContext, useEffect } from 'react';
import { useTranslation } from 'react-i18next';
import { useDispatch } from 'react-redux';
import { keyframes } from 'tss-react';
import { makeStyles } from 'tss-react/mui';

import { hideDialog } from '../../../dialog/actions';
import { IconClose } from '../../../icons/svg';
import { withPixelLineHeight } from '../../../styles/functions.web';

import Button from './Button';
import ClickableIcon from './ClickableIcon';
import { DialogTransitionContext } from './DialogTransition';


const useStyles = makeStyles()((theme: Theme) => {
    return {
        container: {
            width: '100%',
            height: '100%',
            position: 'fixed',
            top: 0,
            left: 0,
            display: 'flex',
            justifyContent: 'center',
            alignItems: 'flex-start',
            animation: `${keyframes`
                0% {
                    opacity: 0.4;
                }
                100% {
                    opacity: 1;
                }
            `} 0.2s forwards ease-out`,

            '&.unmount': {
                animation: `${keyframes`
                    0% {
                        opacity: 1;
                    }
                    100% {
                        opacity: 0.5;
                    }
                `} 0.15s forwards ease-in`
            }
        },

        backdrop: {
            position: 'absolute',
            width: '100%',
            height: '100%',
            top: 0,
            left: 0,
            backgroundColor: theme.palette.ui02,
            opacity: 0.75
        },

        modal: {
            zIndex: 1,
            backgroundColor: theme.palette.ui01,
            border: `1px solid ${theme.palette.ui03}`,
            boxShadow: '0px 4px 25px 4px rgba(20, 20, 20, 0.6)',
            borderRadius: `${theme.shape.borderRadius}px`,
            display: 'flex',
            flexDirection: 'column',
            height: 'auto',
            minHeight: '200px',
            maxHeight: '560px',
            marginTop: '64px',
            animation: `${keyframes`
                0% {
                    margin-top: 85px
                }
                100% {
                    margin-top: 64px
                }
            `} 0.2s forwards ease-out`,

            '&.medium': {
                width: '400px'
            },

            '&.large': {
                width: '664px'
            },

            '&.unmount': {
                animation: `${keyframes`
                    0% {
                        margin-top: 64px
                    }
                    100% {
                        margin-top: 40px
                    }
                `} 0.15s forwards ease-in`
            },

            '@media (max-width: 448px)': {
                width: '100% !important',
                maxHeight: 'initial',
                height: '100%',
                margin: 0,
                position: 'absolute',
                top: 0,
                left: 0,
                bottom: 0,
                animation: `${keyframes`
                    0% {
                        margin-top: 15px
                    }
                    100% {
                        margin-top: 0
                    }
                `} 0.2s forwards ease-out`,

                '&.unmount': {
                    animation: `${keyframes`
                        0% {
                            margin-top: 0
                        }
                        100% {
                            margin-top: 15px
                        }
                    `} 0.15s forwards ease-in`
                }
            }
        },

        header: {
            width: '100%',
            padding: '24px',
            boxSizing: 'border-box',
            display: 'flex',
            alignItems: 'flex-start',
            justifyContent: 'space-between'
        },

        title: {
            color: theme.palette.text01,
            ...withPixelLineHeight(theme.typography.heading5),
            margin: 0,
            padding: 0
        },

        content: {
            height: 'auto',
            overflowY: 'auto',
            width: '100%',
            boxSizing: 'border-box',
            padding: '0 24px',
            overflowX: 'hidden',

            '@media (max-width: 448px)': {
                height: '100%'
            }
        },

        footer: {
            width: '100%',
            boxSizing: 'border-box',
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'flex-end',
            padding: '24px',

            '& button:last-child': {
                marginLeft: '16px'
            }
        }
    };
});

interface DialogProps {
    cancel?: {
        hidden?: boolean;
        translationKey?: string;
    };
    children?: ReactElement | ReactElement[];
    description?: string;
    ok?: {
        disabled?: boolean;
        hidden?: boolean;
        translationKey?: string;
    };
    onCancel?: () => void;
    onSubmit?: () => void;
    size?: 'large' | 'medium';
    title?: string;
    titleKey?: string;
}

const Dialog = ({
    cancel = { translationKey: 'dialog.Cancel' },
    children,
    description,
    ok = { translationKey: 'dialog.Ok' },
    onCancel,
    onSubmit,
    size = 'medium',
    title,
    titleKey
}: DialogProps) => {
    const { classes, cx } = useStyles();
    const { t } = useTranslation();
    const { isUnmounting } = useContext(DialogTransitionContext);
    const dispatch = useDispatch();

    const onClose = useCallback(() => {
        onCancel?.();
        dispatch(hideDialog());
    }, [ onCancel ]);

    const handleKeyDown = useCallback((e: KeyboardEvent) => {
        if (e.key === 'Escape') {
            onClose();
        }
    }, []);

    const submit = useCallback(() => {
        onSubmit?.();
        dispatch(hideDialog());
    }, [ onSubmit ]);

    useEffect(() => {
        window.addEventListener('keydown', handleKeyDown);

        return () => window.removeEventListener('keydown', handleKeyDown);
    }, []);

    return (
        <div className = { cx(classes.container, isUnmounting && 'unmount') }>
            <div
                className = { classes.backdrop }
                onClick = { onClose } />
            <div
                aria-describedby = { description }
                aria-labelledby = { title ?? t(titleKey ?? '') }
                aria-modal = { true }
                className = { cx(classes.modal, isUnmounting && 'unmount', size) }
                role = 'dialog'>
                <div className = { classes.header }>
                    <p className = { classes.title }>{title ?? t(titleKey ?? '')}</p>
                    <ClickableIcon
                        accessibilityLabel = { t('dialog.close') }
                        icon = { IconClose }
                        onClick = { onClose } />
                </div>
                <div className = { classes.content }>{children}</div>
                <div className = { classes.footer }>
                    {!cancel.hidden && <Button
                        accessibilityLabel = { t(cancel.translationKey ?? '') }
                        labelKey = { cancel.translationKey }
                        onClick = { onClose }
                        type = 'tertiary' />}
                    {!ok.hidden && <Button
                        accessibilityLabel = { t(ok.translationKey ?? '') }
                        disabled = { ok.disabled }
                        labelKey = { ok.translationKey }
                        onClick = { submit } />}
                </div>
            </div>
        </div>
    );
};

export default Dialog;