feat: Save last page and add library view for comics

package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@expo/vector-icons": "^13.0.0",
     "@expo/webpack-config": "^0.17.0",
+    "@react-native-async-storage/async-storage": "~1.17.3",
     "@react-native-picker/picker": "2.4.2",
     "@react-navigation/bottom-tabs": "^6.4.0",
     "@react-navigation/native": "^6.0.12",

src/components/Chip.tsx

@@ -0,0 +1,22 @@
+import { FC, ReactNode } from "react";
+import { Text, View } from "react-native";
+
+interface Props {
+    colour: string;
+    children: ReactNode,
+}
+
+const Chip: FC<Props> = (props) => {
+    return <Text style={{
+        backgroundColor: props.colour,
+        padding: 4,
+        borderRadius: 4,
+        fontSize: 12,
+        height: 24,
+        color: 'white',
+    }}>
+        {props.children}
+    </Text>
+};
+
+export default Chip;

src/components/ComicCard.tsx

@@ -1,16 +1,27 @@
+import { MaterialCommunityIcons } from "@expo/vector-icons";
 import { FC } from "react";
 import { Image, StyleSheet, Text, View } from "react-native";
 import { ComicMetadata } from "../provider";
+import Chip from "./Chip";
 
 interface Props {
-    comic: ComicMetadata
+    comic: ComicMetadata & { isLocal?: boolean }
 }
 
 const ComicCard: FC<Props> = (props) => {
     return <View style={styles.aboutRow}>
         <Image source={{ uri: props.comic.avatarUrl }} style={styles.avatar} />
         <View style={styles.titleContainer}>
-            <Text style={styles.title}>{props.comic.title}</Text>
+            <View style={styles.titleRow}>
+                <Text style={styles.title}>
+                    {props.comic.title}
+                </Text>
+                {props.comic.isLocal && <View style={styles.localChip}>
+                    <Chip colour="#d602ee">
+                        <MaterialCommunityIcons name="download" size={16} />
+                    </Chip>
+                </View>}
+            </View>
             <Text style={styles.subtitle}>{props.comic.shortDescription}</Text>
             <Text style={styles.author}>By {props.comic.author}</Text>
         </View>
@@ -29,9 +40,16 @@ const styles = StyleSheet.create({
         flexDirection: 'column',
         paddingLeft: 8,
     },
+    titleRow: {
+        flexDirection: 'row',
+        alignItems: 'center',
+    },
     title: {
         fontSize: 24,
     },
+    localChip: {
+        paddingLeft: 4,
+    },
     subtitle: {
         fontSize: 16,
     },

src/components/ComicSelector.tsx

@@ -0,0 +1,21 @@
+import { FC } from "react"
+import { StyleSheet, View } from "react-native"
+import { ComicMetadata } from "../provider"
+import ComicCard from "./ComicCard"
+import Touchable from "./Touchable"
+
+const ComicSelector: FC<ComicMetadata & { onClick: () => void; isLocal?: boolean }> = (props) => {
+    return <Touchable onPress={() => props.onClick()}>
+        <View style={styles.comic}>
+            <ComicCard comic={props} />
+        </View>
+    </Touchable>
+}
+
+export default ComicSelector;
+
+const styles = StyleSheet.create({
+        comic: {
+        padding: 8,
+    },
+});

src/pages/comic.tsx

@@ -1,8 +1,11 @@
 import { MaterialCommunityIcons } from "@expo/vector-icons";
+import AsyncStorage from "@react-native-async-storage/async-storage";
 import { NativeStackScreenProps } from "@react-navigation/native-stack";
+import { useEffect } from "react";
 import { ActivityIndicator, Image as NativeImage, ScrollView, StyleSheet, Text, View } from "react-native";
 import { createImageProgress } from "react-native-image-progress";
 import { Pie } from 'react-native-progress';
+import { useQueryClient } from "react-query";
 import { RootStackParamList } from "../../App";
 import Touchable from "../components/Touchable";
 import { useComicPage } from "../provider";
@@ -12,6 +15,15 @@ const Image = createImageProgress(NativeImage);
 export default function Comic(props: Props) {
     const { data, error, isLoading } = useComicPage(props.route.params.provider, props.route.params.comicId, props.route.params.pageId, props.navigation);
 
+    const queryClient = useQueryClient();
+
+    useEffect(() => {
+        if (data) {
+            AsyncStorage.setItem(`comic:${props.route.params.provider}:${props.route.params.comicId}:lastPageRead`, data.id);
+            queryClient.invalidateQueries(['currentPage', props.route.params.provider, props.route.params.comicId])
+        }
+    }, [data]);
+
     if (isLoading) return <ActivityIndicator />;
     if (error) return <Text>Failed to load comic: {error.toString()}</Text>;
     if (!data) return <Text>Whoops! We couldn't find that page :/</Text>;

src/pages/comiclist.tsx

@@ -1,12 +1,14 @@
-import { MaterialCommunityIcons } from "@expo/vector-icons";
+import { MaterialCommunityIcons, Ionicons } from "@expo/vector-icons";
 import { createBottomTabNavigator } from "@react-navigation/bottom-tabs";
-import { StyleSheet, Text, TouchableOpacity, View } from "react-native";
+import { Text, View } from "react-native";
+import Library from "./comiclist/Library";
 import LocalComicList from "./comiclist/Local";
 
 const Tab = createBottomTabNavigator<TabParamList>();
 
 export type TabParamList = {
   Local: undefined;
+  Library: undefined;
   Remote: undefined;
 };
 
@@ -24,14 +26,14 @@ export default function ComicList() {
       screenOptions={({ route }) => {
         return {
           tabBarIcon: (({ focused, size, color }) => {
-            const iconName = route.name === 'Local'
-              ? (focused ? 'download' : 'download-outline')
-              : (focused ? 'cloud' : 'cloud-outline');
-            return <MaterialCommunityIcons name={iconName} size={size} color={color} />
+            if (route.name === 'Local') return <MaterialCommunityIcons name={focused ? 'download' : 'download-outline'} size={size} color={color} />
+            if (route.name === 'Remote') return <MaterialCommunityIcons name={focused ? 'cloud' : 'cloud-outline'} size={size} color={color} />
+            if (route.name === 'Library') return <Ionicons name={focused ? 'library' : 'library-outline'} size={size} color={color} />
           })
         };
       }}
     >
+      <Tab.Screen name="Library" component={Library} />
       <Tab.Screen name="Local" component={LocalComicList} />
       <Tab.Screen name="Remote" component={Remote} />
     </Tab.Navigator>

src/pages/comiclist/Library.tsx

@@ -0,0 +1,80 @@
+import { MaterialCommunityIcons, MaterialIcons } from "@expo/vector-icons";
+import { BottomTabNavigationProp } from "@react-navigation/bottom-tabs";
+import { CompositeNavigationProp, useNavigation } from "@react-navigation/native";
+import { NativeStackNavigationProp } from "@react-navigation/native-stack";
+import { useEffect } from "react";
+import { ActivityIndicator, FlatList, StyleSheet, Text, TouchableOpacity, View } from "react-native";
+import { useQueryClient } from "react-query";
+import { RootStackParamList } from "../../../App";
+import ComicSelector from "../../components/ComicSelector";
+import { ComicProviderKey, useLibraryComics } from "../../provider";
+import { TabParamList } from "../comiclist";
+
+export type LibraryNavigationProp = CompositeNavigationProp<
+    BottomTabNavigationProp<TabParamList, 'Local'>,
+    NativeStackNavigationProp<RootStackParamList, 'Home'>
+>;
+
+export default function Library() {
+    const client = useQueryClient();
+    const navigator = useNavigation<LibraryNavigationProp>();
+    const { data, error, isLoading } = useLibraryComics();
+
+    useEffect(() => {
+        navigator.setOptions({
+            headerRight: () => <View style={styles.iconRow}>
+                <View style={styles.padding}>
+                    <TouchableOpacity
+                        onPress={() => {
+                            client.invalidateQueries('libraryComics');
+                        }}
+                    >
+                        <MaterialCommunityIcons name="refresh" size={24} style={{ color: "black" }} />
+                    </TouchableOpacity>
+                </View>
+            </View>
+        });
+    }, [client]);
+
+    if (isLoading) return <ActivityIndicator />;
+    if (error) return <Text>Failed to load comics: {error.toString()}</Text>;
+    if (!data) return <Text>Whoops! We couldn't load those comics :/</Text>;
+
+    if (data.length === 0) {
+        return <View style={styles.center}>
+            <MaterialIcons name='sentiment-dissatisfied' size={32} color='#666' />
+            <Text style={styles.noComicsText}>You aren't reading any comics</Text>
+        </View>
+    }
+
+    function openComic(provider: ComicProviderKey, id: string) {
+        navigator.navigate('ComicProfile', {
+            provider,
+            comicId: id,
+        });
+    }
+
+    return <FlatList data={data} renderItem={({ item }) =>
+        <ComicSelector onClick={() => openComic(item.provider, item.comicId)} isLocal={item.provider === 'local'} {...item} />
+    } keyExtractor={item => item.provider + ':' + item.comicId} />
+}
+
+const styles = StyleSheet.create({
+    center: {
+        flex: 1,
+        justifyContent: "center",
+        alignItems: "center",
+    },
+    noComicsText: {
+        color: '#666',
+    },
+    comic: {
+        padding: 8,
+    },
+    iconRow: {
+        flexDirection: 'row',
+    },
+    padding: {
+        paddingEnd: 16,
+    },
+});

src/pages/comiclist/Local.tsx

@@ -11,20 +11,13 @@ import { RootStackParamList } from "../../../App";
 import { LocalComicId } from "../../provider/local";
 import { useQueryClient } from "react-query";
 import { MaterialCommunityIcons, MaterialIcons } from "@expo/vector-icons";
+import ComicSelector from "../../components/ComicSelector";
 
 export type ComicListNavigationProp = CompositeNavigationProp<
     BottomTabNavigationProp<TabParamList, 'Local'>,
     NativeStackNavigationProp<RootStackParamList, 'Home'>
 >;
 
-const Comic: FC<ComicMetadata & { onClick: () => void }> = (props) => {
-    return <Touchable onPress={() => props.onClick()}>
-        <View style={styles.comic}>
-            <ComicCard comic={props} />
-        </View>
-    </Touchable>
-}
-
 export default function LocalComicList() {
     const client = useQueryClient();
     const navigator = useNavigation<ComicListNavigationProp>();
@@ -57,8 +50,8 @@ export default function LocalComicList() {
     }, [client]);
 
     if (isLoading) return <ActivityIndicator />;
-    if (error) return <Text>Failed to load comic: {error.toString()}</Text>;
-    if (!data) return <Text>Whoops! We couldn't find that comic :/</Text>;
+    if (error) return <Text>Failed to load comics: {error.toString()}</Text>;
+    if (!data) return <Text>Whoops! We couldn't those comics :/</Text>;
 
     function openComic(comicId: LocalComicId) {
         navigation.navigate('ComicProfile', {
@@ -74,7 +67,7 @@ export default function LocalComicList() {
         </View>
     }
 
-    return <FlatList data={data} renderItem={({ item }) => <Comic onClick={() => openComic(item.id)} {...item} />} keyExtractor={item => item.id} />
+    return <FlatList data={data} renderItem={({ item }) => <ComicSelector onClick={() => openComic(item.id)} {...item} />} keyExtractor={item => item.id} />
 }
 
 const styles = StyleSheet.create({
@@ -86,9 +79,6 @@ const styles = StyleSheet.create({
     noComicsText: {
         color: '#666',
     },
-    comic: {
-        padding: 8,
-    },
     iconRow: {
         flexDirection: 'row',
     },

src/pages/comicprofile.tsx

@@ -2,10 +2,11 @@ import { NativeStackScreenProps } from "@react-navigation/native-stack";
 import { ActivityIndicator, StyleSheet, Text, TouchableOpacity, View } from "react-native";
 import { RootStackParamList } from "../../App";
 import ComicCard from "../components/ComicCard";
-import { useComicMetadata } from "../provider";
+import { useComicMetadata, useCurrentPage } from "../provider";
 import Divider from "../components/Divider";
 import ChapterList from "../components/ChapterList";
 import { MaterialCommunityIcons } from "@expo/vector-icons";
+import Touchable from "../components/Touchable";
 
 export default function ComicProfile(props: Props) {
     const comicQuery = useComicMetadata(props.route.params.provider, props.route.params.comicId, (data) => {
@@ -27,12 +28,22 @@ export default function ComicProfile(props: Props) {
         });
     });
 
+    const { data: currentPage } = useCurrentPage(props.route.params.provider, props.route.params.comicId);
+
     if (comicQuery.isLoading) return <ActivityIndicator />;
     if (comicQuery.error) return <Text>Failed to load comic: {comicQuery.error.toString()}</Text>;
     if (!comicQuery.data) return <Text>Whoops! We couldn't find that comic :/</Text>;
 
     return <View style={styles.container}>
         <ComicCard comic={comicQuery.data} />
+        {currentPage && <View>
+            <Touchable onPress={() => props.navigation.push('Page', {
+                ...props.route.params,
+                pageId: currentPage,
+            })}>
+                <MaterialCommunityIcons name="bookmark" size={24} color="red" />
+            </Touchable>
+        </View>}
         <Divider />
         <ChapterList provider={props.route.params.provider} comicId={props.route.params.comicId} />
     </View>

src/provider/index.ts

@@ -1,3 +1,4 @@
+import AsyncStorage from "@react-native-async-storage/async-storage";
 import { NativeStackNavigationProp } from "@react-navigation/native-stack";
 import { useQuery } from "react-query";
 import { RootStackParamList } from "../../App";
@@ -20,6 +21,8 @@ export interface ComicMetadata {
     avatarUrl: string;
 }
 
+export type FullComicMetadata = ComicMetadata & { comicId: string; provider: ComicProviderKey; };
+
 export interface SimpleChapter {
     id: string;
     title: string;
@@ -119,3 +122,39 @@ export function useLocalComics() {
         () => COMIC_PROVIDERS['local'].listComics(),
     );
 }
+
+/**
+ * Library comics are those that the user is currently reading and have a saved bookmark for
+ */
+export function useLibraryComics() {
+    return useQuery<FullComicMetadata[], Error>(
+        'libraryComics',
+        async () => {
+            const keys = await AsyncStorage.getAllKeys();
+            const promises: Promise<FullComicMetadata | null>[] = [];
+            for (const key of keys) {
+                const matches = /^comic:([a-z]+):([a-zA-Z0-9-_]+):lastPageRead$/.exec(key);
+                if (!matches) continue;
+                const provider = matches[1] as ComicProviderKey;
+                const id = matches[2];
+                promises.push(COMIC_PROVIDERS[provider].getComicInfo(id).then(comic => {
+                    if (!comic) return comic;
+                    return {
+                        ...comic,
+                        comicId: id,
+                        provider,
+                    };
+                }));
+            }
+            const comics = await Promise.all(promises);
+            return comics.filter(comic => comic !== null) as FullComicMetadata[];
+        },
+    );
+}
+
+export function useCurrentPage(provider: string, comicId: string) {
+    return useQuery<string | null, Error>(
+        ['currentPage', provider, comicId],
+        () => AsyncStorage.getItem(`comic:${provider}:${comicId}:lastPageRead`)
+    );
+}

yarn.lock

@@ -1563,6 +1563,13 @@
     mkdirp "^1.0.4"
     rimraf "^3.0.2"
 
+"@react-native-async-storage/async-storage@~1.17.3":
+  version "1.17.10"
+  resolved "https://registry.yarnpkg.com/@react-native-async-storage/async-storage/-/async-storage-1.17.10.tgz#8d6a4771912be8454a9e215eebd469b1b8e2e638"
+  integrity sha512-KrR021BmBLsA0TT1AAsfH16bHYy0MSbhdAeBAqpriak3GS1T2alFcdTUvn13p0ZW6FKRD6Bd3ryU2zhU/IYYJQ==
+  dependencies:
+    merge-options "^3.0.4"
+
 "@react-native-community/cli-clean@^8.0.4":
   version "8.0.4"
   resolved "https://registry.yarnpkg.com/@react-native-community/cli-clean/-/cli-clean-8.0.4.tgz#97e16a20e207b95de12e29b03816e8f2b2c80cc7"
@@ -5977,6 +5984,11 @@ is-path-inside@^3.0.2:
   resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-3.0.3.tgz#d231362e53a07ff2b0e0ea7fed049161ffd16283"
   integrity sha512-Fd4gABb+ycGAmKou8eMftCupSir5lRxqf4aD/vd0cD2qc4HL07OjCeuHMr8Ro4CoMaeCKDB0/ECBOVWjTwUvPQ==
 
+is-plain-obj@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-2.1.0.tgz#45e42e37fccf1f40da8e5f76ee21515840c09287"
+  integrity sha512-YWnfyRwxL/+SsrWYfOpUtz5b3YD+nyfkHvjbcanzk8zgyO4ASD67uVMRt8k5bM4lLMDnXfriRhOpemw+NfT1eA==
+
 is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
@@ -6653,6 +6665,13 @@ merge-descriptors@1.0.1:
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
   integrity sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w==
 
+merge-options@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/merge-options/-/merge-options-3.0.4.tgz#84709c2aa2a4b24c1981f66c179fe5565cc6dbb7"
+  integrity sha512-2Sug1+knBjkaMsMgf1ctR1Ujx+Ayku4EdJN4Z+C2+JzoeF7A3OZ9KM2GY0CpQS51NR61LTurMJrRKPhSs3ZRTQ==
+  dependencies:
+    is-plain-obj "^2.1.0"
+
 merge-stream@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-2.0.0.tgz#52823629a14dd00c9770fb6ad47dc6310f2c1f60"