/*
 * Copyright (C) Contributors to the Suwayomi project
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

import IconButton from '@mui/material/IconButton';
import SkipPreviousIcon from '@mui/icons-material/SkipPrevious';
import SkipNextIcon from '@mui/icons-material/SkipNext';
import Stack from '@mui/material/Stack';
import { alpha } from '@mui/material/styles';
import Box from '@mui/material/Box';
import { useLayoutEffect } from 'react';
import { ReaderProgressBar } from '@/modules/reader/components/overlay/progress-bar/ReaderProgressBar.tsx';
import { ReaderProgressBarSlot } from '@/modules/reader/components/overlay/progress-bar/ReaderProgressBarSlot.tsx';
import { userReaderStatePagesContext } from '@/modules/reader/contexts/state/ReaderStatePagesContext.tsx';
import { useReaderStateChaptersContext } from '@/modules/reader/contexts/state/ReaderStateChaptersContext.tsx';
import { ReaderService } from '@/modules/reader/services/ReaderService.ts';
import { getPage } from '@/modules/reader/utils/ReaderProgressBar.utils.tsx';
import { getOptionForDirection } from '@/modules/theme/services/theme.tsx';
import { ProgressBarPosition, ReaderResumeMode } from '@/modules/reader/types/Reader.types.ts';
import { ReaderProgressBarDirectionWrapper } from '@/modules/reader/components/overlay/progress-bar/ReaderProgressBarDirectionWrapper.tsx';
import { useReaderProgressBarContext } from '@/modules/reader/contexts/ReaderProgressBarContext.tsx';
import { useReaderOverlayContext } from '@/modules/reader/contexts/ReaderOverlayContext.tsx';

export const MobileReaderProgressBar = () => {
    const { nextChapter, previousChapter } = useReaderStateChaptersContext();
    const { isVisible } = useReaderOverlayContext();
    const { setIsMaximized } = useReaderProgressBarContext();
    const pagesState = userReaderStatePagesContext();
    const { currentPageIndex, pages } = pagesState;

    const direction = ReaderService.useGetThemeDirection();

    const openNextChapter = ReaderService.useNavigateToChapter(nextChapter, ReaderResumeMode.START);
    const openPreviousChapter = ReaderService.useNavigateToChapter(previousChapter, ReaderResumeMode.END);

    useLayoutEffect(() => {
        setIsMaximized(isVisible);

        return () => setIsMaximized(false);
    }, [isVisible]);

    return (
        <ReaderProgressBarDirectionWrapper>
            <Stack
                sx={{
                    flexDirection: 'row',
                    alignItems: 'center',
                    px: 2,
                    gap: 1,
                }}
            >
                <IconButton
                    onClick={openPreviousChapter}
                    disabled={!previousChapter}
                    sx={{ backgroundColor: (theme) => alpha(theme.palette.background.paper, 0.85) }}
                >
                    {getOptionForDirection(<SkipPreviousIcon />, <SkipNextIcon />, direction)}
                </IconButton>
                <ReaderProgressBar
                    progressBarPosition={ProgressBarPosition.BOTTOM}
                    {...pagesState}
                    createProgressBarSlot={({ name }) => (
                        <ReaderProgressBarSlot
                            pageName={name}
                            progressBarPosition={ProgressBarPosition.BOTTOM}
                            slotProps={{
                                box: {
                                    sx: {
                                        display: 'flex',
                                        alignItems: 'center',
                                        justifyContent: 'end',
                                        position: 'relative',
                                        backgroundColor: 'background.default',
                                    },
                                },
                            }}
                        >
                            <Box
                                sx={{
                                    position: 'absolute',
                                    top: 'calc(50% - 2px)',
                                    right: '2px',
                                    width: '2px',
                                    height: '2px',
                                    borderRadius: 100,
                                    backgroundColor: 'background.paper',
                                    zIndex: 1,
                                }}
                            />
                        </ReaderProgressBarSlot>
                    )}
                    slotProps={{
                        container: {
                            sx: {
                                flexGrow: 1,
                                position: 'relative',
                                display: 'flex',
                                justifyItems: 'center',
                                alignItems: 'stretch',
                                backgroundColor: (theme) => alpha(theme.palette.background.paper, 0.85),
                                borderRadius: 100,
                            },
                        },
                        progressBarRoot: {
                            sx: {
                                flexGrow: 1,
                                alignItems: 'stretch',
                                gap: 0,
                            },
                        },
                        progressBarSlotsActionArea: {
                            sx: {
                                height: '100%',
                                alignItems: 'center',
                                py: 2,
                                cursor: 'pointer',
                            },
                        },

                        progressBarSlotsContainer: {
                            sx: {
                                borderRadius: 100,
                            },
                        },

                        progressBarSlot: {
                            sx: {
                                height: '20px',
                            },
                        },
                        progressBarReadPages: {
                            sx: {
                                height: '20px',
                                backgroundColor: 'primary.main',
                                borderRadius: '400px 0 0 400px',
                                width: `calc(${(Math.max(0, getPage(currentPageIndex, pages).pagesIndex) / pages.length) * 100}% + 100% / ${pages.length})`,
                            },
                        },
                        progressBarCurrentPageSlot: {
                            sx: {
                                display: 'flex',
                                justifyContent: 'end',
                                alignItems: 'center',
                                zIndex: 1,
                                pointer: 'default',
                            },
                        },
                        progressBarPageTexts: {
                            base: { px: 1 },
                        },
                    }}
                    slots={{
                        progressBarCurrentPage: (
                            <Box
                                sx={{
                                    minWidth: '5px',
                                    height: '75%',
                                    backgroundColor: 'primary.main',
                                    borderRadius: 100,
                                }}
                            />
                        ),
                    }}
                />
                <IconButton
                    onClick={openNextChapter}
                    disabled={!nextChapter}
                    sx={{ backgroundColor: (theme) => alpha(theme.palette.background.paper, 0.85) }}
                >
                    {getOptionForDirection(<SkipNextIcon />, <SkipPreviousIcon />, direction)}
                </IconButton>
            </Stack>
        </ReaderProgressBarDirectionWrapper>
    );
};