express.js setup

.gitignore

@@ -1,43 +1 @@
-# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
-
-# dependencies
-node_modules/
-
-# Expo
-.expo/
-dist/
-web-build/
-expo-env.d.ts
-
-# Native
-.kotlin/
-*.orig.*
-*.jks
-*.p8
-*.p12
-*.key
-*.mobileprovision
-
-# Metro
-.metro-health-check*
-
-# debug
-npm-debug.*
-yarn-debug.*
-yarn-error.*
-
-# macOS
-.DS_Store
-*.pem
-
-# local env files
-.env*.local
-
-# typescript
-*.tsbuildinfo
-
-app-example
-
-# generated native folders
-/ios
-/android
+node_modules

apps/client/.gitignore

@@ -0,0 +1,43 @@
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+app-example
+
+# generated native folders
+/ios
+/android

apps/client/eslint.config.js

@@ -0,0 +1,10 @@
+// https://docs.expo.dev/guides/using-eslint/
+const { defineConfig } = require('eslint/config');
+const expoConfig = require('eslint-config-expo/flat');
+
+module.exports = defineConfig([
+  expoConfig,
+  {
+    ignores: ['dist/*'],
+  },
+]);

apps/client/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "@caldav/client",
+  "main": "expo-router/entry",
+  "version": "1.0.0",
+  "scripts": {
+    "start": "expo start",
+    "reset-project": "node ./scripts/reset-project.js",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web",
+    "lint": "expo lint"
+  },
+  "dependencies": {
+    "@caldav/shared": "*",
+    "@expo/vector-icons": "^15.0.3",
+    "@react-navigation/bottom-tabs": "^7.4.0",
+    "@react-navigation/elements": "^2.6.3",
+    "@react-navigation/native": "^7.1.8",
+    "@shopify/flash-list": "^2.0.2",
+    "expo": "~54.0.25",
+    "expo-constants": "~18.0.10",
+    "expo-font": "~14.0.9",
+    "expo-haptics": "~15.0.7",
+    "expo-image": "~3.0.10",
+    "expo-linking": "~8.0.9",
+    "expo-router": "~6.0.15",
+    "expo-splash-screen": "~31.0.11",
+    "expo-status-bar": "~3.0.8",
+    "expo-symbols": "~1.0.7",
+    "expo-system-ui": "~6.0.8",
+    "expo-web-browser": "~15.0.9",
+    "nativewind": "^4.2.1",
+    "react": "19.1.0",
+    "react-dom": "19.1.0",
+    "react-native": "0.81.5",
+    "react-native-gesture-handler": "~2.28.0",
+    "react-native-reanimated": "~4.1.1",
+    "react-native-safe-area-context": "5.6.0",
+    "react-native-screens": "~4.16.0",
+    "react-native-web": "~0.21.0",
+    "react-native-worklets": "0.5.1"
+  },
+  "devDependencies": {
+    "@types/react": "~19.1.0",
+    "eslint-config-expo": "~10.0.0",
+    "prettier-plugin-tailwindcss": "^0.5.11",
+    "tailwindcss": "^3.4.17"
+  },
+  "private": true
+}

apps/client/src/app/Calender.tsx

@@ -0,0 +1,308 @@
+import { Animated, Modal, Pressable, Text, View } from "react-native";
+import { DAYS, MONTHS, Month } from "../Constants";
+import Header from "../components/Header";
+import React, { useEffect, useMemo, useRef, useState } from "react";
+import currentTheme from "../Themes";
+import BaseBackground from "../components/BaseBackground";
+import { FlashList } from "@shopify/flash-list";
+
+// TODO: month selection dropdown menu
+
+const Calendar = () => {
+  const [monthIndex, setMonthIndex] = useState(0);
+  const [currentYear, setCurrentYear] = useState(new Date().getFullYear());
+
+  const changeMonth = (delta: number) => {
+    setMonthIndex((prev) => {
+      const newIndex = prev + delta;
+      if (newIndex > 11) {
+        setCurrentYear((y) => y + 1);
+        return 0;
+      }
+      if (newIndex < 0) {
+        setCurrentYear((y) => y - 1);
+        return 11;
+      }
+      return newIndex;
+    });
+  };
+
+  return (
+    <BaseBackground>
+      <CalendarHeader
+        changeMonth={changeMonth}
+        monthIndex={monthIndex}
+        currentYear={currentYear}
+      />
+      <WeekDaysLine />
+      <CalendarGrid month={MONTHS[monthIndex]} year={currentYear} />
+    </BaseBackground>
+  );
+};
+
+type MonthSelectorProps = {
+  modalVisible: boolean;
+  onClose: () => void;
+  position: { top: number; left: number; width: number };
+};
+
+const MonthSelector = ({
+  modalVisible,
+  onClose,
+  position,
+}: MonthSelectorProps) => {
+  const heightAnim = useRef(new Animated.Value(0)).current;
+  type ItemType = { id: string; text: string };
+  const listRef = useRef<React.ComponentRef<typeof FlashList<ItemType>>>(null);
+  const [monthSelectorData, setMonthSelectorData] = useState(() => {
+    const initial = [];
+    for (let i = 1; i <= 10; i++) {
+      initial.push({ id: i.toString(), text: `number ${i}` });
+    }
+    return initial;
+  });
+
+  const appendToTestData = (
+    startIndex: number,
+    numberOfEntries: number,
+    appendToStart: boolean,
+  ) => {
+    // create new data
+    const newData = [];
+    for (let i = 0; i < numberOfEntries; i++) {
+      const newIndex = startIndex + i + 1;
+      const newEntry = {
+        id: newIndex + "",
+        text: `number ${newIndex}`,
+      };
+      if (appendToStart) {
+        newData.unshift(newEntry);
+      } else {
+        newData.push(newEntry);
+      }
+    }
+    // add new data
+    if (appendToStart) {
+      setMonthSelectorData([...newData, ...monthSelectorData]);
+    } else {
+      setMonthSelectorData([...monthSelectorData, ...newData]);
+    }
+  };
+
+  useEffect(() => {
+    if (modalVisible) {
+      Animated.timing(heightAnim, {
+        toValue: 200,
+        duration: 200,
+        useNativeDriver: false,
+      }).start();
+    } else {
+      // reset on close
+      heightAnim.setValue(0);
+    }
+  }, [modalVisible]);
+
+  const renderItem = ({ item }: { item: ItemType }) => (
+    <Pressable>
+      <View className="w-full flex justify-center items-center">
+        <Text className="text-3xl">{item.text}</Text>
+      </View>
+    </Pressable>
+  );
+
+  return (
+    <Modal
+      visible={modalVisible}
+      transparent={true}
+      animationType="none"
+      onRequestClose={onClose}
+    >
+      <Pressable className="flex-1" onPress={onClose}>
+        <Animated.View
+          className="absolute bg-white border-2 border-solid rounded-lg overflow-hidden"
+          style={{
+            top: position.top,
+            left: position.left,
+            width: position.width,
+            height: heightAnim,
+          }}
+        >
+          <FlashList
+            className="w-full"
+            ref={listRef}
+            keyExtractor={(item) => item.id}
+            data={monthSelectorData}
+            initialScrollIndex={5}
+            onEndReachedThreshold={0.5}
+            onEndReached={() =>
+              appendToTestData(monthSelectorData.length, 10, false)
+            }
+            onStartReachedThreshold={0.5}
+            onStartReached={() =>
+              appendToTestData(monthSelectorData.length, 10, true)
+            }
+            renderItem={renderItem}
+          />
+        </Animated.View>
+      </Pressable>
+    </Modal>
+  );
+};
+
+type CalendarHeaderProps = {
+  changeMonth: (delta: number) => void;
+  monthIndex: number;
+  currentYear: number;
+};
+
+const CalendarHeader = (props: CalendarHeaderProps) => {
+  const [modalVisible, setModalVisible] = useState(false);
+  const [dropdownPosition, setDropdownPosition] = useState({
+    top: 0,
+    left: 0,
+    width: 0,
+  });
+  const containerRef = useRef<View>(null);
+
+  const prevMonth = () => props.changeMonth(-1);
+  const nextMonth = () => props.changeMonth(1);
+
+  const measureAndOpen = () => {
+    containerRef.current?.measureInWindow((x, y, width, height) => {
+      setDropdownPosition({ top: y + height, left: x, width });
+      setModalVisible(true);
+    });
+  };
+
+  return (
+    <Header className="flex flex-row items-center justify-between">
+      <ChangeMonthButton onPress={prevMonth} title={"<"} />
+      <View
+        ref={containerRef}
+        className="relative flex flex-row items-center justify-around"
+      >
+        <Text className="text-4xl">
+          {MONTHS[props.monthIndex]} {props.currentYear}
+        </Text>
+        <Pressable
+          className={
+            "flex justify-center items-center bg-white w-12 h-12 p-2 " +
+            "border border-solid rounded-full ml-2"
+          }
+          style={{
+            borderColor: currentTheme.primeFg,
+          }}
+          onPress={measureAndOpen}
+        >
+          <Text className="text-4xl">v</Text>
+        </Pressable>
+      </View>
+      <MonthSelector
+        modalVisible={modalVisible}
+        onClose={() => setModalVisible(false)}
+        position={dropdownPosition}
+      />
+      <ChangeMonthButton onPress={nextMonth} title={">"} />
+    </Header>
+  );
+};
+
+type ChangeMonthButtonProps = {
+  onPress: () => void;
+  title: string;
+};
+
+const ChangeMonthButton = (props: ChangeMonthButtonProps) => (
+  <Pressable
+    onPress={props.onPress}
+    className={
+      "w-16 h-16 bg-white rounded-full flex items-center " +
+      "justify-center border border-solid border-1 mx-2"
+    }
+    style={{
+      borderColor: currentTheme.primeFg,
+    }}
+  >
+    <Text className="text-4xl">{props.title}</Text>
+  </Pressable>
+);
+
+const WeekDaysLine = () => (
+  <View className="flex flex-row items-center justify-around px-2 gap-2">
+    {/* TODO: px and gap need fine tuning to perfectly align with the grid */}
+    {DAYS.map((day, i) => (
+      <Text key={i}>{day.substring(0, 2).toUpperCase()}</Text>
+    ))}
+  </View>
+);
+
+type CalendarGridProps = {
+  month: Month;
+  year: number;
+};
+
+const CalendarGrid = (props: CalendarGridProps) => {
+  const { baseDate, dateOffset } = useMemo(() => {
+    const monthIndex = MONTHS.indexOf(props.month);
+    const base = new Date(props.year, monthIndex, 1);
+    const offset = base.getDay() === 0 ? 6 : base.getDay() - 1;
+    return { baseDate: base, dateOffset: offset };
+  }, [props.month, props.year]);
+
+  // TODO: create array beforehand in a useMemo
+  const createDateFromOffset = (offset: number): Date => {
+    const date = new Date(baseDate);
+    date.setDate(date.getDate() + offset);
+    return date;
+  };
+
+  return (
+    <View
+      className="h-full flex-1 flex-col flex-wrap gap-2 p-2"
+      style={{
+        backgroundColor: currentTheme.calenderBg,
+      }}
+    >
+      {Array.from({ length: 6 }).map((_, i) => (
+        <View
+          key={i}
+          className="w-full flex-1 flex-row justify-around items-center gap-2"
+        >
+          {Array.from({ length: 7 }).map((_, j) => (
+            <SingleDay
+              key={j}
+              date={createDateFromOffset(i * 7 + j - dateOffset)}
+              month={props.month}
+            />
+          ))}
+        </View>
+      ))}
+    </View>
+  );
+};
+
+type SingleDayProps = {
+  date: Date;
+  month: Month;
+};
+
+const SingleDay = (props: SingleDayProps) => {
+  const isSameMonth = MONTHS[props.date.getMonth()] === props.month;
+
+  return (
+    <View
+      className="h-full flex-1 aspect-auto rounded-xl items-center"
+      style={{
+        backgroundColor: currentTheme.primeBg,
+      }}
+    >
+      <Text
+        className={`text-xl ` + (isSameMonth ? "text-black" : "text-black/50")}
+      >
+        {props.date.getDate()}
+      </Text>
+    </View>
+  );
+};
+
+export default Calendar;

apps/client/src/app/Chat.tsx

@@ -1,8 +1,9 @@
-import { View, Text, FlatList, TextInput } from "react-native";
+import { View, Text, TextInput } from "react-native";
 import currentTheme from "../Themes";
 import { useState } from "react";
 import Header from "../components/Header";
 import BaseBackground from "../components/BaseBackground";
+import { FlashList } from "@shopify/flash-list";
 
 // TODO: better shadows for everything
 // (maybe with extra library because of differences between android and ios)
@@ -246,8 +247,7 @@ const Chat = () => {
   return (
     <BaseBackground>
       <ChatHeader />
-      <FlatList
-        inverted
+      <FlashList
         data={messages}
         renderItem={({ item }) => (
           <ChatMessage
@@ -256,6 +256,10 @@ const Chat = () => {
             height={item.height}
           />
         )}
+        maintainVisibleContentPosition={{
+          autoscrollToBottomThreshold: 0.2,
+          startRenderingFromBottom: true,
+        }}
         keyExtractor={(item) => item.id}
         // extraData={selectedId} might need this later for re-rendering
       />

apps/client/tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "CommonJS",
+    "outDir": "dist",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "skipLibCheck": true
+  },
+  "include": [
+    "**/*.ts",
+    "**/*.tsx",
+    ".expo/types/**/*.ts",
+    "expo-env.d.ts",
+    "nativewind-env.d.ts"
+  ]
+}

apps/server/.gitignore

@@ -0,0 +1 @@
+dist

apps/server/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "@caldav/server",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "dev": "tsx watch src/app.ts",
+    "build": "tsc",
+    "start": "node dist/app.js"
+  },
+  "dependencies": {
+    "@caldav/shared": "*",
+    "express": "^5.2.1"
+  },
+  "devDependencies": {
+    "@types/express": "^5.0.6",
+    "@types/node": "^24.10.1",
+    "tsx": "^4.21.0"
+  }
+}

apps/server/src/app.ts

@@ -0,0 +1,12 @@
+import express, { Request, Response } from 'express';
+
+const app = express();
+const port = 3000;
+
+app.get('/', (req: Request, res: Response) => {
+  res.send('Hello World!');
+});
+
+app.listen(port, () => {
+  console.log(`Example app listening on port ${port}`);
+});

apps/server/tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "CommonJS",
+    "outDir": "dist",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "skipLibCheck": true
+  },
+  "include": ["src"]
+}

eslint.config.js

@@ -1,10 +1,5 @@
 // https://docs.expo.dev/guides/using-eslint/
 const { defineConfig } = require('eslint/config');
-const expoConfig = require('eslint-config-expo/flat');
 
 module.exports = defineConfig([
-  expoConfig,
-  {
-    ignores: ['dist/*'],
-  },
 ]);

package.json

@@ -1,50 +1,13 @@
 {
-  "name": "caldav",
-  "main": "expo-router/entry",
+  "name": "caldav-mono",
   "version": "1.0.0",
-  "scripts": {
-    "start": "expo start",
-    "reset-project": "node ./scripts/reset-project.js",
-    "android": "expo start --android",
-    "ios": "expo start --ios",
-    "web": "expo start --web",
-    "lint": "expo lint"
-  },
-  "dependencies": {
-    "@expo/vector-icons": "^15.0.3",
-    "@react-navigation/bottom-tabs": "^7.4.0",
-    "@react-navigation/elements": "^2.6.3",
-    "@react-navigation/native": "^7.1.8",
-    "expo": "~54.0.25",
-    "expo-constants": "~18.0.10",
-    "expo-font": "~14.0.9",
-    "expo-haptics": "~15.0.7",
-    "expo-image": "~3.0.10",
-    "expo-linking": "~8.0.9",
-    "expo-router": "~6.0.15",
-    "expo-splash-screen": "~31.0.11",
-    "expo-status-bar": "~3.0.8",
-    "expo-symbols": "~1.0.7",
-    "expo-system-ui": "~6.0.8",
-    "expo-web-browser": "~15.0.9",
-    "nativewind": "^4.2.1",
-    "react": "19.1.0",
-    "react-dom": "19.1.0",
-    "react-native": "0.81.5",
-    "react-native-gesture-handler": "~2.28.0",
-    "react-native-reanimated": "~3.17.4",
-    "react-native-safe-area-context": "5.4.0",
-    "react-native-screens": "~4.16.0",
-    "react-native-web": "~0.21.0",
-    "react-native-worklets": "0.5.1"
-  },
+  "private": true,
+  "workspaces": [
+    "apps/*",
+    "packages/*"
+  ],
   "devDependencies": {
-    "@types/react": "~19.1.0",
     "eslint": "^9.25.0",
-    "eslint-config-expo": "~10.0.0",
-    "prettier-plugin-tailwindcss": "^0.5.11",
-    "tailwindcss": "^3.4.17",
     "typescript": "~5.9.2"
-  },
-  "private": true
+  }
 }

packages/shared/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@caldav/shared",
+  "version": "1.0.0",
+  "private": true,
+  "exports": {
+    "./*": "./src/*"
+  }
+}

packages/shared/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "composite": true,
+    "declaration": true,
+    "declarationMap": true,
+    "module": "ESNext",
+    "target": "ES2020",
+    "moduleResolution": "Node",
+    "esModuleInterop": true,
+    "strict": true
+  },
+  "include": ["src"]
+}

src/app/Calender.tsx

@@ -1,163 +0,0 @@
-import { Pressable, Text, View } from "react-native";
-import { DAYS, MONTHS, Month } from "../Constants";
-import Header from "../components/Header";
-import { useMemo, useState } from "react";
-import currentTheme from "../Themes";
-import BaseBackground from "../components/BaseBackground";
-
-// TODO: month selection dropdown menu
-
-const Calendar = () => {
-  const [monthIndex, setMonthIndex] = useState(0);
-  const [currentYear, setCurrentYear] = useState(new Date().getFullYear());
-
-  const changeMonth = (delta: number) => {
-    setMonthIndex((prev) => {
-      const newIndex = prev + delta;
-      if (newIndex > 11) {
-        setCurrentYear((y) => y + 1);
-        return 0;
-      }
-      if (newIndex < 0) {
-        setCurrentYear((y) => y - 1);
-        return 11;
-      }
-      return newIndex;
-    });
-  };
-
-  return (
-    <BaseBackground>
-      <CalendarHeader
-        changeMonth={changeMonth}
-        monthIndex={monthIndex}
-        currentYear={currentYear}
-      />
-      <WeekDaysLine />
-      <CalendarGrid month={MONTHS[monthIndex]} year={currentYear} />
-    </BaseBackground>
-  );
-};
-
-type CalendarHeaderProps = {
-  changeMonth: (delta: number) => void;
-  monthIndex: number;
-  currentYear: number;
-};
-
-const CalendarHeader = (props: CalendarHeaderProps) => {
-  const prevMonth = () => props.changeMonth(-1);
-  const nextMonth = () => props.changeMonth(1);
-
-  return (
-    <Header className="flex flex-row items-center justify-between">
-      <ChangeMonthButton onPress={prevMonth} title={"<"} />
-      <Text className="text-4xl">
-        {MONTHS[props.monthIndex]} {props.currentYear}
-      </Text>
-      <ChangeMonthButton onPress={nextMonth} title={">"} />
-    </Header>
-  );
-};
-
-type ChangeMonthButtonProps = {
-  onPress: () => void;
-  title: string;
-};
-
-const ChangeMonthButton = (props: ChangeMonthButtonProps) => (
-  <Pressable
-    onPress={props.onPress}
-    className={
-      "w-16 h-16 bg-white rounded-full flex items-center " +
-      "justify-center border border-solid border-1 mx-2"
-    }
-    style={{
-      borderColor: currentTheme.primeFg,
-    }}
-  >
-    <Text className="text-4xl">{props.title}</Text>
-  </Pressable>
-);
-
-const WeekDaysLine = () => (
-  <View className="flex flex-row items-center justify-around px-2 gap-2">
-    {/* TODO: px and gap need fine tuning to perfectly align with the grid */}
-    {DAYS.map((day, i) => (
-      <Text key={i}>{day.substring(0, 2).toUpperCase()}</Text>
-    ))}
-  </View>
-);
-
-type CalendarGridProps = {
-  month: Month;
-  year: number;
-};
-
-const CalendarGrid = (props: CalendarGridProps) => {
-  const { baseDate, dateOffset } = useMemo(() => {
-    const monthIndex = MONTHS.indexOf(props.month);
-    const base = new Date(props.year, monthIndex, 1);
-    const offset = base.getDay() === 0 ? 6 : base.getDay() - 1;
-    return { baseDate: base, dateOffset: offset };
-  }, [props.month, props.year]);
-
-  // TODO: create array beforehand in a useMemo
-  const createDateFromOffset = (offset: number): Date => {
-    const date = new Date(baseDate);
-    date.setDate(date.getDate() + offset);
-    return date;
-  };
-
-  return (
-    <View
-      className="h-full flex-1 flex-col flex-wrap gap-2 p-2"
-      style={{
-        backgroundColor: currentTheme.calenderBg,
-      }}
-    >
-      {Array.from({ length: 6 }).map((_, i) => (
-        <View
-          key={i}
-          className="w-full flex-1 flex-row justify-around items-center gap-2"
-        >
-          {Array.from({ length: 7 }).map((_, j) => (
-            <SingleDay
-              key={j}
-              date={createDateFromOffset(i * 7 + j - dateOffset)}
-              month={props.month}
-            />
-          ))}
-        </View>
-      ))}
-    </View>
-  );
-};
-
-type SingleDayProps = {
-  date: Date;
-  month: Month;
-};
-
-const SingleDay = (props: SingleDayProps) => {
-  const isSameMonth = MONTHS[props.date.getMonth()] === props.month;
-
-  return (
-    <View
-      className="h-full flex-1 aspect-auto rounded-xl items-center"
-      style={{
-        backgroundColor: currentTheme.primeBg,
-      }}
-    >
-      <Text
-        className={
-          `text-xl ` + (isSameMonth ? "text-black" : "text-black/50")
-        }
-      >
-        {props.date.getDate()}
-      </Text>
-    </View>
-  );
-};
-
-export default Calendar;

tsconfig.json

@@ -1,18 +1,10 @@
 {
-  "extends": "expo/tsconfig.base",
   "compilerOptions": {
-    "strict": true,
-    "paths": {
-      "@/*": [
-        "./*"
-      ]
-    }
+    "strict": true
   },
-  "include": [
-    "**/*.ts",
-    "**/*.tsx",
-    ".expo/types/**/*.ts",
-    "expo-env.d.ts",
-    "nativewind-env.d.ts"
+  "references": [
+    { "path": "packages/shared" },
+    { "path": "apps/client" },
+    { "path": "apps/server" }
   ]
-}
+}