cleanup (#117)

* cleanup

* fix template

src/components/chapter/ChapterList.tsx

@@ -0,0 +1,246 @@
+/*
+ * 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 React, { useState, useEffect } from 'react';
+import { Box, styled } from '@mui/system';
+import { Virtuoso } from 'react-virtuoso';
+import Typography from '@mui/material/Typography';
+import { CircularProgress, Fab } from '@mui/material';
+import { Link } from 'react-router-dom';
+import makeToast from 'components/util/Toast';
+import client from 'util/client';
+import PlayArrow from '@mui/icons-material/PlayArrow';
+import ChapterOptions from 'components/chapter/ChapterOptions';
+import ChapterCard from 'components/chapter/ChapterCard';
+import useLocalStorage from 'util/useLocalStorage';
+
+const List = styled(Virtuoso)(({ theme }) => ({
+    listStyle: 'none',
+    padding: 0,
+    minHeight: '200px',
+    [theme.breakpoints.up('md')]: {
+        width: '50vw',
+        // 64px for the Appbar, 40px for the ChapterCount Header
+        height: 'calc(100vh - 64px - 40px)',
+        margin: 0,
+    },
+}));
+
+const baseWebsocketUrl = JSON.parse(window.localStorage.getItem('serverBaseURL')!).replace('http', 'ws');
+const initialQueue = {
+    status: 'Stopped',
+    queue: [],
+} as IQueue;
+
+interface IProps {
+    id: string
+}
+
+function unreadFilter(unread: NullAndUndefined<boolean>, { read: isChapterRead }: IChapter) {
+    switch (unread) {
+        case true:
+            return !isChapterRead;
+        case false:
+            return isChapterRead;
+        default:
+            return true;
+    }
+}
+
+function downloadFilter(downloaded: NullAndUndefined<boolean>,
+    { downloaded: chapterDownload }: IChapter) {
+    switch (downloaded) {
+        case true:
+            return chapterDownload;
+        case false:
+            return !chapterDownload;
+        default:
+            return true;
+    }
+}
+
+function bookmarkdFilter(bookmarked: NullAndUndefined<boolean>,
+    { bookmarked: chapterBookmarked }: IChapter) {
+    switch (bookmarked) {
+        case true:
+            return chapterBookmarked;
+        case false:
+            return !chapterBookmarked;
+        default:
+            return true;
+    }
+}
+
+function findFirstUnreadChapter(chapters: IChapter[]): IChapter | undefined {
+    for (let index = chapters.length - 1; index >= 0; index--) {
+        if (!chapters[index].read) return chapters[index];
+    }
+    return undefined;
+}
+
+export default function ChapterList(props: IProps) {
+    const { id } = props;
+
+    const [chapters, setChapters] = useState<IChapter[]>([]);
+    const [noChaptersFound, setNoChaptersFound] = useState(false);
+    const [chapterUpdateTriggerer, setChapterUpdateTriggerer] = useState(0);
+    const [fetchedOnline, setFetchedOnline] = useState(false);
+    const [fetchedOffline, setFetchedOffline] = useState(false);
+    const [firstUnreadChapter, setFirstUnreadChapter] = useState<IChapter>();
+    const [filteredChapters, setFilteredChapters] = useState<IChapter[]>([]);
+    const [options, setOptions] = useLocalStorage<ChapterListOptions>(
+        `${id}filterOptions`,
+        {
+            active: false,
+            unread: undefined,
+            downloaded: undefined,
+            bookmarked: undefined,
+            reverse: false,
+            sortBy: 'source',
+            showChapterNumber: false,
+        },
+    );
+
+    const [, setWsClient] = useState<WebSocket>();
+    const [{ queue }, setQueueState] = useState<IQueue>(initialQueue);
+
+    function triggerChaptersUpdate() {
+        setChapterUpdateTriggerer(chapterUpdateTriggerer + 1);
+    }
+
+    useEffect(() => {
+        const wsc = new WebSocket(`${baseWebsocketUrl}/api/v1/downloads`);
+        wsc.onmessage = (e) => {
+            const data = JSON.parse(e.data) as IQueue;
+            setQueueState(data);
+        };
+
+        setWsClient(wsc);
+
+        return () => wsc.close();
+    }, []);
+
+    useEffect(() => {
+        triggerChaptersUpdate();
+    }, [queue.length]);
+
+    const downloadStatusStringFor = (chapter: IChapter) => {
+        let rtn = '';
+        if (chapter.downloaded) {
+            rtn = ' • Downloaded';
+        }
+        queue.forEach((q) => {
+            if (chapter.index === q.chapterIndex && chapter.mangaId === q.mangaId) {
+                rtn = ` • Downloading (${(q.progress * 100).toFixed(2)}%)`;
+            }
+        });
+        return rtn;
+    };
+
+    useEffect(() => {
+        const shouldFetchOnline = fetchedOffline && !fetchedOnline;
+
+        client.get(`/api/v1/manga/${id}/chapters?onlineFetch=${shouldFetchOnline}`)
+            .then((response) => response.data)
+            .then((data) => {
+                if (data.length === 0 && fetchedOffline) {
+                    makeToast('No chapters found', 'warning');
+                    setNoChaptersFound(true);
+                }
+                setChapters(data);
+            })
+            .then(() => {
+                if (shouldFetchOnline) {
+                    setFetchedOnline(true);
+                } else setFetchedOffline(true);
+            });
+    }, [fetchedOnline, fetchedOffline, chapterUpdateTriggerer]);
+
+    useEffect(() => {
+        const filtered = options.active
+            ? chapters.filter((chp) => unreadFilter(options.unread, chp)
+            && downloadFilter(options.downloaded, chp)
+            && bookmarkdFilter(options.bookmarked, chp))
+            : [...chapters];
+        const Sorted = options.sortBy === 'fetchedAt'
+            ? filtered.sort((a, b) => a.fetchedAt - b.fetchedAt)
+            : filtered;
+        if (options.reverse) {
+            Sorted.reverse();
+        }
+        setFilteredChapters(Sorted);
+
+        setFirstUnreadChapter(findFirstUnreadChapter(filtered));
+    }, [options, chapters]);
+
+    const ResumeFab = () => (firstUnreadChapter === undefined ? null
+        : (
+            <Fab
+                sx={{ position: 'fixed', bottom: '2em', right: '3em' }}
+                component={Link}
+                variant="extended"
+                color="primary"
+                to={`/manga/${id}/chapter/${firstUnreadChapter.index}/page/${firstUnreadChapter.lastPageRead}`}
+            >
+                <PlayArrow />
+                {firstUnreadChapter.index === 1 ? 'Start' : 'Resume' }
+            </Fab>
+        ));
+
+    if (chapters.length === 0 || noChaptersFound) {
+        return (
+            <div style={{
+                margin: '10px auto',
+                display: 'flex',
+                justifyContent: 'center',
+            }}
+            >
+                <CircularProgress thickness={5} />
+            </div>
+        );
+    }
+
+    return (
+        <>
+            <Box sx={{
+                display: 'flex',
+                flexDirection: 'column',
+            }}
+            >
+                <Box sx={{
+                    display: 'flex', justifyContent: 'space-between', px: 1.5, mt: 1,
+                }}
+                >
+                    <Typography variant="h5">
+                        {`${filteredChapters.length} Chapters`}
+                    </Typography>
+                    <ChapterOptions options={options} setOptions={setOptions} />
+                </Box>
+
+                <List
+                    style={{ // override Virtuoso default values and set them with class
+                        height: 'undefined',
+                        // 900 is the md breakpoint in MUI
+                        overflowY: window.innerWidth < 900 ? 'visible' : 'auto',
+                    }}
+                    totalCount={filteredChapters.length}
+                    itemContent={(index:number) => (
+                        <ChapterCard
+                            showChapterNumber={options.showChapterNumber}
+                            chapter={filteredChapters[index]}
+                            downloadStatusString={downloadStatusStringFor(filteredChapters[index])}
+                            triggerChaptersUpdate={triggerChaptersUpdate}
+                        />
+                    )}
+                    useWindowScroll={window.innerWidth < 900}
+                    overscan={window.innerHeight * 0.5}
+                />
+            </Box>
+            <ResumeFab />
+        </>
+    );
+}