feat: filter functionality on Home screen

Long press on any day to remove filter

app/(tabs)/(home)/index.tsx

@@ -11,16 +11,30 @@ import { addExpense } from "../../../services/database";
 import { SimpleDate } from '../../../util/SimpleDate';
 import { useTheme } from '../../contexts/ThemeContext';
 import { useNavigation } from 'expo-router';
+import { Category, Expense } from '../../../types/dbItems';
 
 
 interface MarkingProps {
     dots?:{color:string, selectedColor?:string, key?:string}[];
+    selected?: boolean;
+    selectedColor?: string;
 } 
 
 type MarkedDates  = {
     [key: string]: MarkingProps;
 }
 
+interface ExpenseEntry extends Expense {
+    category_name?: string;
+    color?: string;
+}
+
+type Filters = {
+    search?: string;
+    month?: string;
+    day?: string;
+}
+
 const constructMarkedDates = (data : {[column: string]: any}) => {
     let markedDates: MarkedDates = {};
     data.forEach((value: any) => {
@@ -42,6 +56,7 @@ export default function Page() {
     const [plusShow, setPlusShow] = useState(true);
     const prevOffset = useRef(0);
 
+    const [filter, setFilter] = useState<Filters>({})
 
     const profile = require("../../../assets/images/profile.jpg")
 
@@ -53,19 +68,54 @@ export default function Page() {
         setPlusShow(isScrollingUp || isTop)
     }
 
-    const newExpense = async (title: string, category_guid: string, date: string, amount: number) => {
-        try {
-            await addExpense(title, category_guid, date, amount);
-        } catch (error: any) {
-            console.error("Adding new expense has failed: ", error);
-        }
-    }
-
     const {data, isLoading, reFetch} = useFetch({sql: "SELECT e.guid AS expense_guid, c.guid AS category_guid, e.name AS expense_name, c.name AS category_name, e.datetime AS expense_datetime, e.amount AS expense_amount, c.color AS category_color, c.type AS category_type FROM expense e JOIN category c ON e.category_guid = c.guid ORDER BY expense_datetime desc;", args: []});
     
-    const expenseDates = useMemo(()=>
+    const expenses = useMemo<ExpenseEntry[]>(
-        constructMarkedDates(data)
+        () => {
-    , [data])
+            console.log("expenses updated")
+            return data.map((elem) => { 
+                return {
+                    guid: elem["expense_guid"],
+                    name: elem["expense_name"],
+                    amount: elem["expense_amount"],
+                    dateTime: elem["expense_datetime"],
+                    category_name: elem["category_name"],
+                    color: elem["category_color"]}   
+            })
+    }, [data])
+
+    const filteredExpenses = useMemo<ExpenseEntry[]>(
+        () => {
+            console.log("filter called")
+            return expenses.filter((elem) => {
+                if(filter.month && filter.month.substring(5, 7) !== elem.dateTime?.substring(5, 7)){
+                    return false;
+                }
+                if(filter.day && filter.day.substring(8, 10) !== elem.dateTime?.substring(8, 10)){
+                    return false;
+                }
+                if(filter.search && !elem.name?.toLowerCase().includes(filter.search.toLowerCase())){
+                    return false;
+                }
+                return true;
+            })
+        }, [expenses, filter]
+    )
+
+    const expenseDates = useMemo(
+        () => {
+            let markedDates = constructMarkedDates(data)
+            if(filter.day) {
+                const dateKey: string = String(filter.day).split(" ")[0]
+                if(markedDates[dateKey] === undefined){
+                    markedDates[dateKey] = {}
+                }
+                markedDates[dateKey].selected = true;
+                markedDates[dateKey].selectedColor = colors.accentColor;
+            }
+            return markedDates;
+        }
+    , [data, filter.day])
 
     useEffect(() => {
         const unsubscribe = navigation.addListener('focus', () => {
@@ -75,7 +125,17 @@ export default function Page() {
         return unsubscribe;
     }, [navigation]);
 
+    const hanldeDaySelect = (date: string | undefined) => {
+        setFilter({...filter, day: date});
+    }
+    const handleMonthSelect = (date: string | undefined) => {
+        setFilter({...filter, month: date, day: undefined});
+    }
+    const handleSearch = (text: string) => {
+        setFilter({...filter, search: text});
+    }
 
+    console.log("rendered")
     return (
         <SafeAreaView edges={["left", "right", "top"]} style={[styles.safeAreaViewStyle, {backgroundColor: colors.containerColor}]}>
             {plusShow && <Plus onPress={()=>{
@@ -90,10 +150,10 @@ export default function Page() {
                 // })
             }}/>}
 
-            {isLoading && <LoadingSymbol/>}
+            {/* {isLoading && <LoadingSymbol/>} */}
             
             <FlatList
-            data={data}
+            data={filteredExpenses}
             ListHeaderComponent={
                 <>
                     <Welcome name="My Dude" image={profile} onPress={() => {router.push("/userSettings")}}/>
@@ -108,23 +168,31 @@ export default function Page() {
                         }}
                         markingType='multi-dot'
                         markedDates={expenseDates}
-                    >
+                        onDayPress={(date) => {
+                            hanldeDaySelect(date.dateString)
+                        }}
+                        onDayLongPress={(date) => {
+                            hanldeDaySelect(undefined)
+                        }}
+                        onMonthChange={(date) => {
+                            handleMonthSelect(date.dateString)
+                        }}
+                        />
 
-                    </Calendar>
+                    <TextInputBar placeholder='Type to Search...' value={filter.search} onChangeText={(text) => handleSearch(text)} style={{marginBottom: 20}}></TextInputBar>
-                    <TextInputBar placeholder='Type to Search...' style={{marginBottom: 20}}></TextInputBar>
                 </>
             }
             renderItem = {({item}) =>
              <ExpenseItem
-                category={item.category_name}
+                category={item.category_name!}
-                color={item.category_color}
+                color={item.color!}
-                date={item.expense_datetime}
+                date={item.dateTime!}
-                title={item.expense_name}
+                title={item.name!}
-                value={item.expense_amount}
+                value={String(item.amount!)}
-                guid={item.expense_guid}
+                guid={item.guid!}
                 onPress={(guid) => {router.push(`/expense/${guid}`)}}
             />}
-            keyExtractor={item => item.expense_guid }
+            keyExtractor={item => item.guid!}
             ItemSeparatorComponent={() => {
                 return (<View style={styles.itemSeperatorStyle}/>);
             }}

app/expense/new.tsx

@@ -55,7 +55,7 @@ export default function AddItem() {
       <CategorySelectorModal visible={selectorModalVisible} onRequestClose={()=>{setSelecorModalVisible(false)}} onCategoryTap={handleCategorySelect}></CategorySelectorModal>
       <AutoDecimalInput onValueChange={handleValueChange} label='Amount'/>
       <CategorySelector onPress={()=>{setSelecorModalVisible(true)}} selectedCategory={selectedCategory}/>
-      <TextInputBar placeholder='Name' onChangeText={(text)=>setExpenseName(text)}/>
+      <TextInputBar placeholder='Name' value={expenseName} onChangeText={(text)=>setExpenseName(text)}/>
       <DateSelectorButton selectedDate={selectedDate} onPress={()=>{setDatePickerShown(true)}}/>
       {datePickerShown &&
         <DateTimePicker 

components/common/TextInputBar.tsx

@@ -45,7 +45,9 @@ export default function TextInputBar(props: SearchBarProps) {
         <TextInput placeholderTextColor={colors.secondaryText} onChangeText = {handleChange} style={[{fontSize: SIZES.normal, height: "100%", color:colors.primaryText}, styles.TextInput]} autoCorrect={false} keyboardType='default' placeholder={props.placeholder} value={props.value} onEndEditing={()=>setIsactive(false)}/>
       
         {isActive &&
-          <TouchableOpacity style={styles.cancel} onPress={()=>{handleChange("")}}>
+          <TouchableOpacity style={styles.cancel} onPress={()=>{
+            console.log("cancel")
+            handleChange("")}}>
             <AntDesign size={15} name='closecircle' color={colors.primaryText}></AntDesign>
           </TouchableOpacity>
         }