Merge branch 'backup-my-local-work'

app.json

@@ -38,7 +38,8 @@
             "backgroundColor": "#000000"
           }
         }
-      ]
+      ],
+      "expo-secure-store"
     ],
     "experiments": {
       "typedRoutes": true,

app/(tabs)/_layout.tsx

@@ -34,8 +34,10 @@ export default function TabLayout() {
 
   return (
     <Tabs>
-      <Tabs.Screen name="index" options={{title: "Today"}} />
+      <Tabs.Screen name="index" options={{title: "Index"}} />
       <Tabs.Screen name="tasks" options={{title: "Tasks"}} />
+      <Tabs.Screen name="assignments" options={{title: "Assignments"}} />
+      <Tabs.Screen name="subjects" options={{title: "Subjects"}} />
     </Tabs>
   );
 }

app/(tabs)/assignments.tsx

@@ -0,0 +1,147 @@
+import { defaultStyles } from "@/constants/defaultStyles";
+import { supabase } from "@/lib/supabase";
+import { Ionicons } from '@expo/vector-icons';
+import { Session } from "@supabase/supabase-js";
+import { router, Stack, useFocusEffect } from "expo-router";
+import { useCallback, useEffect, useState } from "react";
+import { Alert, Button, Pressable, SectionList, Text, View } from "react-native";
+
+type Assignment = {
+  aId: string;
+  title: string;
+  description: string;
+  deadline: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  sId: string;
+}
+
+export default function Assignments() {
+  const [assignments, SetAssignments] = useState<Assignment[]>([])
+  const [session, SetSession] = useState<Session | null>(null)
+
+  const assignmentSections = [
+    { title: "Upcoming Assignments", data: assignments.filter((assignment) => !assignment.isCompleted), emptyMessage: "No upcoming assignments" },
+    { title: "Completed Assignments", data: assignments.filter((assignment) => assignment.isCompleted), emptyMessage: "No completed assignments" },
+  ];
+
+  useEffect(() => {
+    supabase.auth.getSession().then(({ data }) => SetSession(data.session ?? null))
+    const { data: sub } = supabase.auth.onAuthStateChange((_event, newSession) => {
+      SetSession(newSession)
+    })
+    return () => sub.subscription.unsubscribe()
+    },
+  [])
+
+  const GetAssignments = async () => { 
+    const { data, error } = await supabase.from("assignments").select("*").order("deadline", { ascending: false });
+
+    if (error) {
+      Alert.alert("Assignments could not be fetched, please try again");
+      return;
+    }
+
+    SetAssignments(data ?? []);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (session) {
+        GetAssignments();
+      }
+    }, [session])
+  );
+
+  const DeleteAssignment = async (aId: string) => {
+    Alert.alert(
+      "Delete Assignment",
+      "Are you sure you want to delete this assignment?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("assignments").delete().eq("aId", aId);
+
+            if (error) {
+              Alert.alert("Assignment could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Assignment deleted successfully!");
+            GetAssignments();
+          }
+        }
+      ]
+    )
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Assignments",
+          headerTitleStyle: defaultStyles.title,
+          headerRight: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Pressable style={defaultStyles.circularButton} onPress={GetAssignments}>
+                  <Ionicons name="refresh" size={22} color="#333" />
+                </Pressable>
+                <Button title="Logout" onPress={async () => await supabase.auth.signOut()} />
+              </View>
+            )
+          },
+        }}
+      />
+
+      <View style={defaultStyles.buttonContainer}>
+        <Button title="Create Assignment" onPress={() => router.push("/assignment/createAssignment")} />
+      </View>
+
+      <SectionList
+        sections={assignmentSections}
+        keyExtractor={(item) => item.aId}
+        renderSectionHeader={({ section: { title } }) => <Text style={defaultStyles.subtitle}>{title}</Text>}
+        renderItem={({ item }) => {
+          const isOwner = session?.user.id === item.uId;
+
+          return (
+            <View style={defaultStyles.container}>
+              <Pressable style={defaultStyles.container} onPress={() => router.push({pathname: "/assignment/viewDetailsAssignment", params: { aId: item.aId }})}>
+                <Text style={defaultStyles.boldBody}>{item.title}</Text>
+                <Text style={defaultStyles.body}>{item.deadline}</Text>
+                <View style={defaultStyles.checkbox}>
+                  {item.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                </View>
+              </Pressable>
+              
+              {isOwner && (
+                <View style={defaultStyles.buttonContainer}>
+                  <Button title="Edit" onPress={() => router.push({pathname: "/assignment/editAssignment", params: { aId: item.aId }})} />
+                  <Button title="Delete" onPress={() => DeleteAssignment(item.aId)} />
+                </View>
+              )}
+            </View>
+          );
+        }}
+        renderSectionFooter={({ section }) =>
+          section.data.length === 0 ? (
+            <View style={defaultStyles.container}>
+              <Text style={defaultStyles.body}>{section.emptyMessage}</Text>
+              <View style={defaultStyles.separator} />
+            </View>
+          ) : (
+            <View style={defaultStyles.separator} />
+          )
+        }
+      />
+    </View>
+  )
+}

app/(tabs)/editTask.tsx

@@ -1,245 +0,0 @@
-import { supabase } from '@/lib/supabase';
-import {
-  router,
-  Stack,
-  useFocusEffect,
-  useLocalSearchParams,
-} from 'expo-router';
-import { useCallback, useState } from 'react';
-import {
-  ActivityIndicator,
-  Alert,
-  Keyboard,
-  KeyboardAvoidingView,
-  Platform,
-  Pressable,
-  ScrollView,
-  Text,
-  TextInput,
-  TouchableWithoutFeedback,
-  View,
-} from 'react-native';
-
-export default function EditTask() {
-  const { taskId } = useLocalSearchParams<{ taskId?: string }>();
-
-  const [title, setTitle] = useState('');
-  const [description, setDescription] = useState('');
-  const [deadline, setDeadline] = useState('');
-  const [isCompleted, setIsCompleted] = useState(false);
-
-  const [isLoading, setIsLoading] = useState(false);
-  const [isSaving, setIsSaving] = useState(false);
-
-  useFocusEffect(
-    useCallback(() => {
-      const getTask = async () => {
-        if (!taskId) return;
-
-        setIsLoading(true);
-
-        try {
-          const { data, error } = await supabase
-            .from('tasks')
-            .select('*')
-            .eq('tId', taskId)
-            .single();
-
-          if (error || !data) {
-            Alert.alert('Task not found');
-            router.back();
-            return;
-          }
-
-          setTitle(data.title ?? '');
-          setDescription(data.description ?? '');
-          setDeadline(data.deadline ?? '');
-          setIsCompleted(Boolean(data.isCompleted));
-        } finally {
-          setIsLoading(false);
-        }
-      };
-
-      getTask();
-    }, [taskId])
-  );
-
-  const handleSaveTask = async () => {
-    if (!title.trim() || !description.trim() || !deadline.trim()) {
-      Alert.alert('All fields are required!');
-      return;
-    }
-
-    setIsSaving(true);
-
-    try {
-      const { data: userData, error: userError } = await supabase.auth.getUser();
-
-      if (userError || !userData.user) {
-        router.replace('../createUser');
-        return;
-      }
-
-      const { error: dbError } = await supabase
-        .from('tasks')
-        .update({
-          title: title.trim(),
-          description: description.trim(),
-          isCompleted,
-          lastChanged: new Date().toISOString(),
-          deadline: deadline.trim(),
-          uId: userData.user.id,
-        })
-        .eq('tId', taskId);
-
-      if (dbError) {
-        Alert.alert('Task could not be edited, please try again');
-        return;
-      }
-
-      Alert.alert('Task successfully edited!');
-      router.back();
-    } finally {
-      setIsSaving(false);
-    }
-  };
-
-  return (
-    <>
-      <Stack.Screen
-        options={{
-          title: 'Edit Task',
-          headerTitleStyle: {
-            fontSize: 20,
-            fontWeight: '700',
-          },
-        }}
-      />
-
-      <KeyboardAvoidingView
-        className="flex-1 bg-gray-100"
-        behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
-      >
-        <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
-          <ScrollView
-            keyboardShouldPersistTaps="handled"
-            contentContainerClassName="flex-grow justify-center px-5 py-8"
-          >
-            <View className="rounded-3xl bg-white p-6 shadow-lg">
-              <Text className="mb-1 text-3xl font-bold text-gray-900">
-                Edit Task
-              </Text>
-
-              <Text className="mb-6 text-base text-gray-500">
-                Update the details for this task.
-              </Text>
-
-              {isLoading ? (
-                <View className="items-center justify-center py-12">
-                  <ActivityIndicator size="large" />
-                  <Text className="mt-3 text-gray-500">Loading task...</Text>
-                </View>
-              ) : (
-                <>
-                  <View className="mb-4">
-                    <Text className="mb-2 text-sm font-semibold text-gray-700">
-                      Title
-                    </Text>
-                    <TextInput
-                      className="rounded-xl border border-gray-300 bg-gray-50 px-4 py-3 text-base text-gray-900"
-                      placeholder="Enter title"
-                      placeholderTextColor="#9ca3af"
-                      value={title}
-                      onChangeText={setTitle}
-                    />
-                  </View>
-
-                  <View className="mb-4">
-                    <Text className="mb-2 text-sm font-semibold text-gray-700">
-                      Description
-                    </Text>
-                    <TextInput
-                      className="min-h-28 rounded-xl border border-gray-300 bg-gray-50 px-4 py-3 text-base text-gray-900"
-                      placeholder="Enter description"
-                      placeholderTextColor="#9ca3af"
-                      value={description}
-                      onChangeText={setDescription}
-                      multiline
-                      textAlignVertical="top"
-                    />
-                  </View>
-
-                  <View className="mb-4">
-                    <Text className="mb-2 text-sm font-semibold text-gray-700">
-                      Deadline
-                    </Text>
-                    <TextInput
-                      className="rounded-xl border border-gray-300 bg-gray-50 px-4 py-3 text-base text-gray-900"
-                      placeholder="YYYY-MM-DD"
-                      placeholderTextColor="#9ca3af"
-                      value={deadline}
-                      onChangeText={setDeadline}
-                    />
-                  </View>
-
-                  <Pressable
-                    className={`mb-6 flex-row items-center rounded-xl border p-4 ${
-                      isCompleted
-                        ? 'border-blue-600 bg-blue-50'
-                        : 'border-gray-300 bg-gray-50'
-                    }`}
-                    onPress={() => setIsCompleted((current) => !current)}
-                  >
-                    <View
-                      className={`mr-3 h-6 w-6 items-center justify-center rounded-md border-2 ${
-                        isCompleted
-                          ? 'border-blue-600 bg-blue-600'
-                          : 'border-gray-400 bg-white'
-                      }`}
-                    >
-                      {isCompleted && (
-                        <Text className="text-base font-bold text-white">✓</Text>
-                      )}
-                    </View>
-
-                    <Text className="text-base font-semibold text-gray-900">
-                      {isCompleted ? 'Completed' : 'Not completed'}
-                    </Text>
-                  </Pressable>
-
-                  <Pressable
-                    className={`h-14 items-center justify-center rounded-2xl ${
-                      isSaving ? 'bg-blue-400' : 'bg-blue-600'
-                    }`}
-                    onPress={handleSaveTask}
-                    disabled={isSaving}
-                  >
-                    <Text className="text-base font-bold text-white">
-                      {isSaving ? 'Saving...' : 'Save Changes'}
-                    </Text>
-                  </Pressable>
-
-                  {isSaving && (
-                    <View className="mt-4">
-                      <ActivityIndicator size="small" />
-                    </View>
-                  )}
-
-                  <Pressable
-                    className="mt-3 h-14 items-center justify-center rounded-2xl bg-gray-200"
-                    onPress={() => router.back()}
-                    disabled={isSaving}
-                  >
-                    <Text className="text-base font-bold text-gray-900">
-                      Cancel
-                    </Text>
-                  </Pressable>
-                </>
-              )}
-            </View>
-          </ScrollView>
-        </TouchableWithoutFeedback>
-      </KeyboardAvoidingView>
-    </>
-  );
-}

app/(tabs)/index.tsx

@@ -8,7 +8,7 @@ export default function HomeScreen() {
     <View style={defaultStyles.container}>
       <Stack.Screen
         options={{
-          title: "Tasks",
+          title: "Home",
           headerTitleStyle: defaultStyles.title,
           headerRight: () => {
             return (

app/(tabs)/subjects.tsx

@@ -0,0 +1,144 @@
+import { defaultStyles } from "@/constants/defaultStyles";
+import { supabase } from "@/lib/supabase";
+import { Ionicons } from '@expo/vector-icons';
+import { Session } from "@supabase/supabase-js";
+import { router, Stack, useFocusEffect } from "expo-router";
+import { useCallback, useEffect, useState } from "react";
+import { Alert, Button, Pressable, SectionList, Text, View } from "react-native";
+
+type Subject = {
+  sId: string;
+  title: string;
+  description: string;
+  isActive: boolean;
+  lastChanged: string;
+  uId: string;
+}
+
+export default function Subjects() {
+  const [subjects, SetSubject] = useState<Subject[]>([])
+  const [session, SetSession] = useState<Session | null>(null)
+
+  const subjectSections = [
+    { title: "Active Subjects", data: subjects.filter((subject) => !subject.isActive), emptyMessage: "No active subjects" },
+    { title: "Inactive Subjects", data: subjects.filter((subject) => subject.isActive), emptyMessage: "No inactive subjects" },
+  ];
+
+  useEffect(() => {
+    supabase.auth.getSession().then(({ data }) => SetSession(data.session ?? null))
+    const { data: sub } = supabase.auth.onAuthStateChange((_event, newSession) => {
+      SetSession(newSession)
+    })
+    return () => sub.subscription.unsubscribe()
+    },
+  [])
+
+  const GetSubjects = async () => { 
+    const { data, error } = await supabase.from("subjects").select("*");
+
+    if (error) {
+      Alert.alert("Subjects could not be fetched, please try again");
+      return;
+    }
+
+    SetSubject(data ?? []);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (session) {
+        GetSubjects();
+      }
+    }, [session])
+  );
+
+  const DeleteSubject = async (sId: string) => {
+    Alert.alert(
+      "Delete Subject",
+      "Are you sure you want to delete this subject?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("subjects").delete().eq("sId", sId);
+
+            if (error) {
+              Alert.alert("Subject could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Subject deleted successfully!");
+            GetSubjects();
+          }
+        }
+      ]
+    )
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Subjects",
+          headerTitleStyle: defaultStyles.title,
+          headerRight: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Pressable style={defaultStyles.circularButton} onPress={GetSubjects}>
+                  <Ionicons name="refresh" size={22} color="#333" />
+                </Pressable>
+                <Button title="Logout" onPress={async () => await supabase.auth.signOut()} />
+              </View>
+            )
+          },
+        }}
+      />
+
+      <View style={defaultStyles.buttonContainer}>
+        <Button title="Create Subject" onPress={() => router.push("/subject/createSubject")} />
+      </View>
+
+      <SectionList
+        sections={subjectSections}
+        keyExtractor={(item) => item.sId}
+        renderSectionHeader={({ section: { title } }) => <Text style={defaultStyles.subtitle}>{title}</Text>}
+        renderItem={({ item }) => {
+          const isOwner = session?.user.id === item.uId;
+
+          return (
+            <View style={defaultStyles.container}>
+              <Pressable style={defaultStyles.buttonContainer} onPress={() => router.push({pathname: "/subject/viewDetailsSubject", params: { sId: item.sId }})}>
+                <Text style={defaultStyles.title}>{item.title}</Text>
+                <View style={defaultStyles.checkbox}>
+                  {item.isActive && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                </View>
+              </Pressable>
+              
+              {isOwner && (
+                <View style={defaultStyles.buttonContainer}>
+                  <Button title="Edit" onPress={() => router.push({pathname: "/subject/editSubject", params: { sId: item.sId }})} />
+                  <Button title="Delete" onPress={() => DeleteSubject(item.sId)} />
+                </View>
+              )}
+            </View>
+          );
+        }}
+        renderSectionFooter={({ section }) =>
+          section.data.length === 0 ? (
+            <View style={defaultStyles.container}>
+              <Text style={defaultStyles.body}>{section.emptyMessage}</Text>
+              <View style={defaultStyles.separator} />
+            </View>
+          ) : (
+            <View style={defaultStyles.separator} />
+          )
+        }
+      />
+    </View>
+  )
+}

app/(tabs)/tasks.tsx

@@ -12,8 +12,8 @@ type Task = {
   description: string;
   isCompleted: boolean;
   lastChanged: string;
-  deadline: string;
   uId: string;
+  aId: string;
 }
 
 export default function Tasks() {
@@ -34,6 +34,17 @@ export default function Tasks() {
     },
   [])
 
+  const GetTasks = async () => { 
+    const { data, error } = await supabase.from("tasks").select("*");
+
+    if (error) {
+      Alert.alert("Tasks could not be fetched, please try again");
+      return;
+    }
+
+    SetTasks(data ?? []);
+  }
+
   useFocusEffect(
     useCallback(() => {
       if (session) {
@@ -42,17 +53,6 @@ export default function Tasks() {
     }, [session])
   );
 
-  const GetTasks = async () => { 
-    const { data, error } = await supabase.from("tasks").select("tId, title, description, isCompleted,lastChanged, deadline, uId").order("deadline", { ascending: false });
-
-    if (error) {
-      Alert.alert("Task could not be fetched, please try again");
-      return;
-    }
-
-    SetTasks(data ?? []);
-  }
-
   const DeleteTask = async (tId: string) => {
     Alert.alert(
       "Delete Task",
@@ -101,7 +101,7 @@ export default function Tasks() {
       />
 
       <View style={defaultStyles.buttonContainer}>
-        <Button title="Create Task" onPress={() => router.push("/createTask")} />
+        <Button title="Create Task" onPress={() => router.push("/task/createTask")} />
       </View>
 
       <SectionList
@@ -113,12 +113,16 @@ export default function Tasks() {
 
           return (
             <View style={defaultStyles.container}>
-              <Text style={defaultStyles.boldBody}>{item.title}</Text>
-              <Text style={defaultStyles.body}>{item.deadline}</Text> 
+              <Pressable style={defaultStyles.container} onPress={() => router.push({pathname: "/task/viewDetailsTask", params: { tId: item.tId }})}>
+                <Text style={defaultStyles.boldBody}>{item.title}</Text>
+                <View style={defaultStyles.checkbox}>
+                  {item.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                </View>
+              </Pressable>
 
               {isOwner && (
                 <View style={defaultStyles.buttonContainer}>
-                  <Button title="Edit" onPress={() => router.push({pathname: "/editTask", params: { tId: item.tId }})} />
+                  <Button title="Edit" onPress={() => router.push({pathname: "/task/editTask", params: { tId: item.tId }})} />
                   <Button title="Delete" onPress={() => DeleteTask(item.tId)} />
                 </View>
               )}

app/assignment/createAssignment.tsx

@@ -0,0 +1,112 @@
+import { supabase } from '@/lib/supabase';
+import { router, Stack, useLocalSearchParams } from 'expo-router';
+import { useState } from 'react';
+import { ActivityIndicator, Alert, Button, Keyboard, KeyboardAvoidingView, Platform, Pressable, Text, TextInput, TouchableWithoutFeedback, View } from 'react-native';
+
+export default function CreateAssignment() {
+  const sId = (useLocalSearchParams().sId as string) ?? null;
+  const [title, SetTitle] = useState('');
+  const [description, SetDescription] = useState('');
+  const [deadline, SetDeadline] = useState('');
+  const [isCompleted, SetIsCompleted] = useState(false);
+  const [isSaving, SetIsSaving] = useState(false);
+
+  const CreateAssignment = async () => {
+    if(title.trim() === '' || deadline.trim() === '') {
+      Alert.alert("Title and deadline are required!");
+      return;
+    }
+
+    setIsSaving(true);
+
+    try {
+      const { data: userData, error: userError } = await supabase.auth.getUser();
+
+      if (userError || !userData.user) {
+        router.replace('../createUser');
+        return;
+      }
+
+    SetIsSaving(true);
+
+    const { error: dbError } = await supabase.from("assignments").insert({
+      title,
+      description,
+      deadline,
+      isCompleted,
+      lastChanged: new Date().toISOString(),
+      uId: data.user.id,
+      sId: sId,
+    });
+
+    if (dbError) {
+      Alert.alert("Assignment could not be created, please try again");
+      return;
+    }
+
+    Alert.alert("Assignment successfully created!");
+
+    SetTitle('');
+    SetDescription('');
+    SetDeadline('');
+    SetIsCompleted(false);
+
+    SetIsSaving(false);
+
+    router.back();
+  }
+
+  return (
+    <>
+      <Stack.Screen
+        options={{
+          title: "Create Assignment",
+          headerTitleStyle: defaultStyles.title
+        }}
+      />
+
+      <View style={defaultStyles.container}>
+        <Text style={defaultStyles.title}>Create New Assignment</Text>
+        <KeyboardAvoidingView style={{ flex: 1 }} behavior={Platform.OS === "ios" ? "padding" : "height"}>
+          <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
+            <View style={defaultStyles.container}>
+              <TextInput
+                style={defaultStyles.inputText}
+                placeholder="Enter title"
+                value={title}
+                onChangeText={SetTitle}
+              />
+              <TextInput
+                style={defaultStyles.inputText}
+                placeholder="Enter description"
+                value={description}
+                onChangeText={SetDescription}
+              />
+              <TextInput
+                style={defaultStyles.inputText}
+                placeholder="Deadline (YYYY-MM-DD)"
+                value={deadline}
+                onChangeText={SetDeadline}
+              />
+              <Pressable
+                onPress={() => SetIsCompleted(state => !state)}
+                style={defaultStyles.checkboxContainer}
+              >
+                <View style={defaultStyles.checkbox}>
+                  {isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                </View>
+                <Text style={defaultStyles.checkboxLabel}>{isCompleted ? 'Completed' : 'Not completed'}</Text>
+              </Pressable>
+
+              <Button title={isSaving ? "Saving..." : "Save"} onPress={CreateAssignment} disabled={isSaving} />
+              {isSaving && (
+                <ActivityIndicator size="large" />
+              )}
+              <Button title="Cancel" onPress={() => router.back()} />
+            </View>
+          </ScrollView>
+        </TouchableWithoutFeedback>
+      </KeyboardAvoidingView>
+    </>
+  );
+}

app/assignment/editAssignment.tsx

@@ -0,0 +1,143 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { router, Stack, useFocusEffect, useLocalSearchParams } from 'expo-router';
+import { useCallback, useState } from 'react';
+import { ActivityIndicator, Alert, Button, Keyboard, KeyboardAvoidingView, Platform, Pressable, Text, TextInput, TouchableWithoutFeedback, View } from 'react-native';
+
+type Assignment = {
+  aId: string;
+  title: string;
+  description: string;
+  deadline: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  sId: string;
+}
+
+export default function EditAssignment() {
+  const { aId } = useLocalSearchParams<{ aId: string }>();
+  const [assignment, SetAssignment] = useState<Assignment | null>(null)
+  const [isSaving, SetIsSaving] = useState(false);
+
+  const GetAssignment = async (aId: string) => { 
+    const { data, error } = await supabase.from("assignments").select("*").eq("aId", aId).single();
+
+    if (error) {
+      Alert.alert("Assignment could not be fetched, please try again");
+      return;
+    }
+
+    SetAssignment(data ?? null);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (aId) {
+        GetAssignment(aId);
+      }
+    }, [aId])
+  );
+
+  const EditAssignment = async () => {
+    if (!assignment) return;
+
+    if(assignment.title.trim() === '' || assignment.deadline.trim() === '') {
+      Alert.alert("Title and deadline are required!");
+      return;
+    }
+        
+    const { data, error: userError } = await supabase.auth.getUser();
+
+    if(userError || !data.user) {
+      router.replace("../createUser");
+      return;
+    } 
+
+    SetIsSaving(true);
+
+    const { error: dbError } = await supabase.from("assignments").update({
+      title: assignment.title,
+      description: assignment.description,
+      deadline: assignment.deadline,
+      isCompleted: assignment.isCompleted,
+      lastChanged: new Date().toISOString(),
+      uId: data.user.id,
+      sId: assignment.sId,
+    }).eq("aId", aId);
+
+    SetIsSaving(false);
+
+    if (dbError) {
+      Alert.alert("Assignment could not be edited, please try again");
+      return;
+    }
+
+    Alert.alert("Assignment successfully edited!");
+
+    router.back();
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Edit Assignment",
+          headerTitleStyle: defaultStyles.title
+        }}
+      />
+
+      {!assignment && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Assignment not found</Text>
+        </View>
+      )}
+
+      {assignment && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Edit Assignment</Text>
+          <KeyboardAvoidingView style={{ flex: 1 }} behavior={Platform.OS === "ios" ? "padding" : "height"}>
+            <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
+              <View style={defaultStyles.container}>
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Title"
+                  value={assignment.title}
+                  onChangeText={(text) => SetAssignment(prev => prev ? { ...prev, title: text } : prev)}
+                />
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Text"
+                  value={assignment.description}
+                  onChangeText={(text) => SetAssignment(prev => prev ? { ...prev, description: text } : prev)}
+                />
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Text"
+                  value={assignment.deadline}
+                  onChangeText={(text) => SetAssignment(prev => prev ? { ...prev, deadline: text } : prev)}
+                />
+                <Pressable
+                  onPress={() => SetAssignment(prev => prev ? { ...prev, isCompleted: !prev.isCompleted } : prev)}
+                  style={defaultStyles.checkboxContainer}
+                >
+                  <View style={defaultStyles.checkbox}>
+                    {assignment.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                  </View>
+                  <Text style={defaultStyles.checkboxLabel}>{assignment.isCompleted ? 'Completed' : 'Not Completed'}</Text>
+                </Pressable>
+
+                <Button title={isSaving ? "Saving..." : "Save"} onPress={EditAssignment} disabled={isSaving} />
+                {isSaving && (
+                  <ActivityIndicator size="large" />
+                )}
+                <Button title="Cancel" onPress={() => router.back()} />
+              </View>
+            </TouchableWithoutFeedback>
+          </KeyboardAvoidingView>
+        </View>
+      )}
+    </View>
+  )
+}
+

app/assignment/viewDetailsAssignment.tsx

@@ -0,0 +1,224 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { Session } from '@supabase/supabase-js';
+import { router, Stack, useFocusEffect, useLocalSearchParams } from 'expo-router';
+import { useCallback, useEffect, useState } from 'react';
+import { Alert, Button, Pressable, SectionList, Text, View } from "react-native";
+
+type Assignment = {
+  aId: string;
+  title: string;
+  description: string;
+  deadline: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  sId: string;
+}
+
+type Task = {
+  tId: string;
+  title: string;
+  description: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  aId: string;
+}
+
+export default function ViewDetailsAssignment() {
+  const { aId } = useLocalSearchParams<{ aId: string }>();
+  const [assignment, SetAssignment] = useState<Assignment | null>(null)
+  const [tasks, SetTasks] = useState<Task[]>([])
+  const [session, SetSession] = useState<Session | null>(null)
+
+  const taskSections = [
+    { title: "Upcoming Tasks", data: tasks.filter((task) => !task.isCompleted), emptyMessage: "No upcoming tasks" },
+    { title: "Completed Tasks", data: tasks.filter((task) => task.isCompleted), emptyMessage: "No completed tasks" },
+  ];
+
+  useEffect(() => {
+    supabase.auth.getSession().then(({ data }) => SetSession(data.session ?? null))
+    const { data: sub } = supabase.auth.onAuthStateChange((_event, newSession) => {
+      SetSession(newSession)
+    })
+    return () => sub.subscription.unsubscribe()
+    },
+  [])
+
+  const GetAssignment = async (aId: string) => { 
+    const { data, error } = await supabase.from("assignments").select("*").eq("aId", aId).single();
+
+    if (error) {
+      Alert.alert("Assignment could not be fetched, please try again");
+      return;
+    }
+
+    SetAssignment(data ?? null);
+  }
+
+  const GetTasks = async (aId: string) => { 
+    const { data, error } = await supabase.from("tasks").select("*").eq("aId", aId);
+
+    if (error) {
+      Alert.alert("Tasks could not be fetched, please try again");
+      return;
+    }
+
+    SetTasks(data ?? []);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (session && aId) {
+        GetAssignment(aId);
+        GetTasks(aId);
+      }
+    }, [session, aId])
+  );
+
+  const DeleteAssignment = async (aId: string) => {
+    Alert.alert(
+      "Delete Assignment",
+      "Are you sure you want to delete this assignment?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("assignments").delete().eq("aId", aId);
+
+            if (error) {
+              Alert.alert("Assignment could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Assignment deleted successfully!");
+            router.back();
+          }
+        }
+      ]
+    )
+  }
+
+  const DeleteTask = async (tId: string, aId: string) => {
+    Alert.alert(
+      "Delete Task",
+      "Are you sure you want to delete this task?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("tasks").delete().eq("tId", tId);
+
+            if (error) {
+              Alert.alert("Task could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Task deleted successfully!");
+            GetTasks(aId);
+          }
+        }
+      ]
+    )
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Details",
+          headerTitleStyle: defaultStyles.title,
+          headerLeft: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Button title="Back" onPress={router.back} />
+              </View>
+            )
+          },
+          headerRight: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Button title="Logout" onPress={async () => await supabase.auth.signOut()} />
+              </View>
+            )
+          },
+        }}
+      />
+
+      {!assignment && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Assignment not found</Text>
+        </View>
+      )}
+      
+      {assignment && (
+        <View style={defaultStyles.container}>
+          <View style={defaultStyles.container}>
+            <Text style={defaultStyles.title}>{assignment.title}</Text>
+            <Text style={defaultStyles.body}>{assignment.description}</Text>
+            <Text style={defaultStyles.body}>{assignment.deadline}</Text>
+            <View style={defaultStyles.checkbox}>
+                {assignment.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+            </View>
+            <Text style={defaultStyles.body}>{assignment.lastChanged}</Text>
+
+            <Button title="Edit" onPress={() => router.push({pathname: "/assignment/editAssignment", params: { aId: assignment.aId }})} />
+            <Button title="Delete" onPress={() => DeleteAssignment(assignment.aId)} />
+          </View>
+
+          <View style={defaultStyles.buttonContainer}>
+            <Button title="Create Task" onPress={() => router.push({pathname: "/task/createTask", params: { aId: assignment.aId }})} />
+          </View>
+
+          <SectionList
+            sections={taskSections}
+            keyExtractor={(item) => item.tId}
+            renderSectionHeader={({ section: { title } }) => <Text style={defaultStyles.subtitle}>{title}</Text>}
+            renderItem={({ item }) => {
+              const isOwner = session?.user.id === item.uId;
+          
+              return (
+                <View style={defaultStyles.container}>
+                  <Pressable style={defaultStyles.container} onPress={() => router.push({pathname: "/task/viewDetailsTask", params: { tId: item.tId }})}>
+                    <Text style={defaultStyles.boldBody}>{item.title}</Text>
+                    <View style={defaultStyles.checkbox}>
+                      {item.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                    </View>
+                  </Pressable>
+          
+                  {isOwner && (
+                    <View style={defaultStyles.buttonContainer}>
+                      <Button title="Edit" onPress={() => router.push({pathname: "/task/editTask", params: { tId: item.tId }})} />
+                      <Button title="Delete" onPress={() => DeleteTask(item.tId, item.tId)} />
+                    </View>
+                  )}
+                </View>
+              );
+            }}
+            renderSectionFooter={({ section }) =>
+              section.data.length === 0 ? (
+                <View style={defaultStyles.container}>
+                  <Text style={defaultStyles.body}>{section.emptyMessage}</Text>
+                  <View style={defaultStyles.separator} />
+                </View>
+              ) : (
+                <View style={defaultStyles.separator} />
+              )
+            }
+          />
+        </View>
+      )}
+    </View>
+  );
+}

app/subject/createSubject.tsx

@@ -0,0 +1,100 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { router, Stack } from 'expo-router';
+import { useState } from 'react';
+import { ActivityIndicator, Alert, Button, Keyboard, KeyboardAvoidingView, Platform, Pressable, Text, TextInput, TouchableWithoutFeedback, View } from 'react-native';
+
+export default function CreateTask() {
+  const [title, SetTitle] = useState('');
+  const [description, SetDescription] = useState('');
+  const [isActive, SetIsActive] = useState(true);
+  const [isSaving, SetIsSaving] = useState(false);
+
+  const CreateSubject = async () => {
+    if(title.trim() === '') {
+      Alert.alert("Title is required!");
+      return;
+    }
+        
+    const { data, error: userError } = await supabase.auth.getUser();
+
+    if(userError || !data.user) {
+      router.replace("../createUser");
+      return;
+    } 
+
+    SetIsSaving(true);
+
+    const { error: dbError } = await supabase.from("subjects").insert({
+      title,
+      description,
+      isActive,
+      lastChanged: new Date().toISOString(),
+      uId: data.user.id,
+    });
+
+    if (dbError) {
+      Alert.alert("Subject could not be created, please try again");
+      return;
+    }
+
+    Alert.alert("Subject successfully created!");
+
+    SetTitle('');
+    SetDescription('');
+    SetIsActive(false);
+
+    SetIsSaving(false);
+
+    router.back();
+  }
+
+  return (
+    <>
+      <Stack.Screen
+        options={{
+          title: "Create Subject",
+          headerTitleStyle: defaultStyles.title
+        }}
+      />
+
+      <View style={defaultStyles.container}>
+        <Text style={defaultStyles.title}>Create New Subject</Text>
+        <KeyboardAvoidingView style={{ flex: 1 }} behavior={Platform.OS === "ios" ? "padding" : "height"}>
+          <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
+            <View style={defaultStyles.container}>
+              <TextInput
+                style={defaultStyles.inputText}
+                placeholder="Enter title"
+                value={title}
+                onChangeText={SetTitle}
+              />
+              <TextInput
+                style={defaultStyles.inputText}
+                placeholder="Enter description"
+                value={description}
+                onChangeText={SetDescription}
+              />
+              <Pressable
+                onPress={() => SetIsActive(state => !state)}
+                style={defaultStyles.checkboxContainer}
+              >
+                <View style={defaultStyles.checkbox}>
+                  {isActive && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                </View>
+                <Text style={defaultStyles.checkboxLabel}>{isActive ? 'Active' : 'Inactive'}</Text>
+              </Pressable>
+
+              <Button title={isSaving ? "Saving..." : "Save"} onPress={CreateSubject} disabled={isSaving} />
+              {isSaving && (
+                <ActivityIndicator size="large" />
+              )}
+              <Button title="Cancel" onPress={() => router.back()} />
+            </View>
+          </TouchableWithoutFeedback>
+        </KeyboardAvoidingView>
+      </View>
+    </>
+  )
+}
+

app/subject/editSubject.tsx

@@ -0,0 +1,133 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { router, Stack, useFocusEffect, useLocalSearchParams } from 'expo-router';
+import { useCallback, useState } from 'react';
+import { ActivityIndicator, Alert, Button, Keyboard, KeyboardAvoidingView, Platform, Pressable, Text, TextInput, TouchableWithoutFeedback, View } from 'react-native';
+
+type Subject = {
+  sId: string;
+  title: string;
+  description: string;
+  isActive: boolean;
+  lastChanged: string;
+  uId: string;
+}
+
+export default function EditSubject() {
+  const { sId } = useLocalSearchParams<{ sId: string }>();
+  const [subject, SetSubject] = useState<Subject | null>(null)
+  const [isSaving, SetIsSaving] = useState(false);
+
+  const GetSubject = async (sId: string) => { 
+    const { data, error } = await supabase.from("subjects").select("*").eq("sId", sId).single();
+
+    if (error) {
+      Alert.alert("Subject could not be fetched, please try again");
+      return;
+    }
+
+    SetSubject(data ?? null);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (sId) {
+        GetSubject(sId);
+      }
+    }, [sId])
+  );
+
+  const EditSubject = async () => {
+    if (!subject) return;
+
+    if(subject.title.trim() === '') {
+      Alert.alert("Title is required!");
+      return;
+    }
+        
+    const { data, error: userError } = await supabase.auth.getUser();
+
+    if(userError || !data.user) {
+      router.replace("../createUser");
+      return;
+    } 
+
+    SetIsSaving(true);
+
+    const { error: dbError } = await supabase.from("subjects").update({
+      title: subject.title,
+      description: subject.description,
+      isActive: subject.isActive,
+      lastChanged: new Date().toISOString(),
+      uId: data.user.id,
+    }).eq("sId", sId);
+
+    SetIsSaving(false);
+
+    if (dbError) {
+      Alert.alert("Subject could not be edited, please try again");
+      return;
+    }
+
+    Alert.alert("Subject successfully edited!");
+
+    router.back();
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Edit Subject",
+          headerTitleStyle: defaultStyles.title
+        }}
+      />
+
+      {!subject && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Subject not found</Text>
+        </View>
+      )}
+
+      {subject && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Edit Subject</Text>
+          <KeyboardAvoidingView style={{ flex: 1 }} behavior={Platform.OS === "ios" ? "padding" : "height"}>
+            <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
+              <View style={defaultStyles.container}>
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Title"
+                  value={subject.title}
+                  onChangeText={(text) => SetSubject(prev => prev ? { ...prev, title: text } : prev)}
+                />
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Text"
+                  value={subject.description}
+                  onChangeText={(text) => SetSubject(prev => prev ? { ...prev, description: text } : prev)}
+                />
+                <Pressable
+                  onPress={() => SetSubject(prev => prev ? { ...prev, isActive: !prev.isActive } : prev)}
+                  style={defaultStyles.checkboxContainer}
+                >
+                  <View style={defaultStyles.checkbox}>
+                    {subject.isActive && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                  </View>
+                  <Text style={defaultStyles.checkboxLabel}>{subject.isActive ? 'Active' : 'inactive'}</Text>
+                </Pressable>
+
+                <Button title={isSaving ? "Saving..." : "Save"} onPress={EditSubject} disabled={isSaving} />
+                {isSaving && (
+                  <ActivityIndicator size="large" />
+                )}
+                <Button title="Cancel" onPress={() => router.back()} />
+              </View>
+            </TouchableWithoutFeedback>
+          </KeyboardAvoidingView>
+        </View>
+      )}
+    </View>
+  )
+}
+

app/subject/viewDetailsSubject.tsx

@@ -0,0 +1,223 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { Session } from '@supabase/supabase-js';
+import { router, Stack, useFocusEffect, useLocalSearchParams } from 'expo-router';
+import { useCallback, useEffect, useState } from 'react';
+import { Alert, Button, Pressable, SectionList, Text, View } from "react-native";
+
+type Subject = {
+  sId: string;
+  title: string;
+  description: string;
+  isActive: boolean;
+  lastChanged: string;
+  uId: string;
+}
+
+type Assignment = {
+  aId: string;
+  title: string;
+  description: string;
+  deadline: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  sId: string;
+}
+
+export default function ViewDetailsSubject() {
+  const { sId } = useLocalSearchParams<{ sId: string }>();
+  const [subject, SetSubject] = useState<Subject | null>(null)
+  const [assignments, SetAssignments] = useState<Assignment[]>([])
+  const [session, SetSession] = useState<Session | null>(null)
+
+  const assignmentSections = [
+    { title: "Upcoming Assignments", data: assignments.filter((assignment) => !assignment.isCompleted), emptyMessage: "No upcoming assignments" },
+    { title: "Completed Assignments", data: assignments.filter((assignment) => assignment.isCompleted), emptyMessage: "No completed assignments" },
+  ];
+
+  useEffect(() => {
+    supabase.auth.getSession().then(({ data }) => SetSession(data.session ?? null))
+    const { data: sub } = supabase.auth.onAuthStateChange((_event, newSession) => {
+      SetSession(newSession)
+    })
+    return () => sub.subscription.unsubscribe()
+    },
+  [])
+
+  const GetSubject = async (sId: string) => { 
+    const { data, error } = await supabase.from("subjects").select("*").eq("sId", sId).single();
+
+    if (error) {
+      Alert.alert("Subject could not be fetched, please try again");
+      return;
+    }
+
+    SetSubject(data ?? null);
+  }
+
+  const GetAssignments = async (sId: string) => { 
+    const { data, error } = await supabase.from("assignments").select("*").eq("sId", sId).order("deadline", { ascending: true });
+
+    if (error) {
+      Alert.alert("Assignments could not be fetched, please try again");
+      return;
+    }
+
+    SetAssignments(data ?? []);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (session && sId) {
+        GetSubject(sId);
+        GetAssignments(sId);
+      }
+    }, [session, sId])
+  );
+
+  const DeleteSubject = async (sId: string) => {
+    Alert.alert(
+      "Delete Subject",
+      "Are you sure you want to delete this subject?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("subjects").delete().eq("sId", sId);
+
+            if (error) {
+              Alert.alert("Subject could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Subject deleted successfully!");
+            router.back();
+          }
+        }
+      ]
+    )
+  }
+
+  const DeleteAssignment = async (aId: string, sId: string) => {
+    Alert.alert(
+      "Delete Assignment",
+      "Are you sure you want to delete this assignment?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("assignments").delete().eq("aId", aId);
+
+            if (error) {
+              Alert.alert("Assignment could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Assignment deleted successfully!");
+            GetAssignments(sId);
+          }
+        }
+      ]
+    )
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Details",
+          headerTitleStyle: defaultStyles.title,
+          headerLeft: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Button title="Back" onPress={router.back} />
+              </View>
+            )
+          },
+          headerRight: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Button title="Logout" onPress={async () => await supabase.auth.signOut()} />
+              </View>
+            )
+          },
+        }}
+      />
+
+      {!subject && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Subject not found</Text>
+        </View>
+      )}
+      
+      {subject && (
+        <View style={defaultStyles.container}>
+          <View style={defaultStyles.container}>
+            <Text style={defaultStyles.title}>{subject.title}</Text>
+            <Text style={defaultStyles.body}>{subject.description}</Text>
+            <View style={defaultStyles.checkbox}>
+                {subject.isActive && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+            </View>
+            <Text style={defaultStyles.body}>{subject.lastChanged}</Text>
+
+            <Button title="Edit" onPress={() => router.push({pathname: "/subject/editSubject", params: { sId: subject.sId }})} />
+            <Button title="Delete" onPress={() => DeleteSubject(subject.sId)} />
+
+            <View style={defaultStyles.buttonContainer}>
+              <Button title="Create Assignment" onPress={() => router.push({pathname: "/assignment/createAssignment", params: { sId: subject.sId }})} />
+            </View>
+          </View>
+
+          <SectionList
+            sections={assignmentSections}
+            keyExtractor={(item) => item.aId}
+            renderSectionHeader={({ section: { title } }) => <Text style={defaultStyles.subtitle}>{title}</Text>}
+            renderItem={({ item }) => {
+              const isOwner = session?.user.id === item.uId;
+          
+              return (
+                <View style={defaultStyles.container}>
+                  <Pressable style={defaultStyles.container} onPress={() => router.push({pathname: "/assignment/viewDetailsAssignment", params: { aId: item.aId }})}>
+                    <Text style={defaultStyles.boldBody}>{item.title}</Text>
+                    <Text style={defaultStyles.body}>{item.deadline}</Text>
+                    <View style={defaultStyles.checkbox}>
+                      {item.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                    </View>
+                  </Pressable>
+          
+                  {isOwner && (
+                    <View style={defaultStyles.buttonContainer}>
+                      <Button title="Edit" onPress={() => router.push({pathname: "/assignment/editAssignment", params: { aId: item.aId }})} />
+                      <Button title="Delete" onPress={() => DeleteAssignment(item.aId, item.sId)} />
+                    </View>
+                  )}
+                </View>
+              );
+            }}
+            renderSectionFooter={({ section }) =>
+              section.data.length === 0 ? (
+                <View style={defaultStyles.container}>
+                  <Text style={defaultStyles.body}>{section.emptyMessage}</Text>
+                  <View style={defaultStyles.separator} />
+                </View>
+              ) : (
+                <View style={defaultStyles.separator} />
+              )
+            }
+          />
+        </View>
+      )}
+    </View>
+  );
+}

app/task/createTask.tsx

@@ -1,19 +1,19 @@
 import { defaultStyles } from '@/constants/defaultStyles';
 import { supabase } from '@/lib/supabase';
-import { router, Stack } from 'expo-router';
+import { router, Stack, useLocalSearchParams } from 'expo-router';
 import { useState } from 'react';
 import { ActivityIndicator, Alert, Button, Keyboard, KeyboardAvoidingView, Platform, Pressable, Text, TextInput, TouchableWithoutFeedback, View } from 'react-native';
 
 export default function CreateTask() {
+  const aId = (useLocalSearchParams().aId as string) ?? null;
   const [title, SetTitle] = useState('');
   const [description, SetDescription] = useState('');
   const [isCompleted, SetIsCompleted] = useState(false);
-  const [deadline, SetDeadline] = useState('');
   const [isSaving, SetIsSaving] = useState(false);
 
-  const AddNote = async () => {
-    if(title.trim() === '' || description.trim() === '' || deadline.trim() === '') {
-      Alert.alert("All fields are required!");
+  const CreateTask = async () => {
+    if(title.trim() === '') {
+      Alert.alert("Title is required!");
       return;
     }
         
@@ -31,22 +31,20 @@ export default function CreateTask() {
       description,
       isCompleted,
       lastChanged: new Date().toISOString(),
-      deadline,
       uId: data.user.id,
+      aId: aId,
     });
 
     if (dbError) {
       Alert.alert("Task could not be created, please try again");
-      SetIsSaving(false);
       return;
     }
 
-    Alert.alert("Task successfully added!");
+    Alert.alert("Task successfully created!");
 
     SetTitle('');
     SetDescription('');
     SetIsCompleted(false);
-    SetDeadline('');
 
     SetIsSaving(false);
 
@@ -79,12 +77,7 @@ export default function CreateTask() {
                 value={description}
                 onChangeText={SetDescription}
               />
-              <TextInput
-                style={defaultStyles.inputText}
-                placeholder="Deadline (YYYY-MM-DD)"
-                value={deadline}
-                onChangeText={SetDeadline}
-              />
+
               <Pressable
                 onPress={() => SetIsCompleted(state => !state)}
                 style={defaultStyles.checkboxContainer}
@@ -95,7 +88,7 @@ export default function CreateTask() {
                 <Text style={defaultStyles.checkboxLabel}>{isCompleted ? 'Completed' : 'Not completed'}</Text>
               </Pressable>
 
-              <Button title={isSaving ? "Saving..." : "Save"} onPress={AddNote} disabled={isSaving} />
+              <Button title={isSaving ? "Saving..." : "Save"} onPress={CreateTask} disabled={isSaving} />
               {isSaving && (
                 <ActivityIndicator size="large" />
               )}

app/task/editTask.tsx

@@ -0,0 +1,135 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { router, Stack, useFocusEffect, useLocalSearchParams } from 'expo-router';
+import { useCallback, useState } from 'react';
+import { ActivityIndicator, Alert, Button, Keyboard, KeyboardAvoidingView, Platform, Pressable, Text, TextInput, TouchableWithoutFeedback, View } from 'react-native';
+
+type Task = {
+  tId: string;
+  title: string;
+  description: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  aId: string;
+}
+
+export default function EditTask() {
+  const { tId } = useLocalSearchParams<{ tId: string }>();
+  const [task, SetTask] = useState<Task | null>(null)
+  const [isSaving, SetIsSaving] = useState(false);
+
+  const GetTask = async (tId: string) => { 
+    const { data, error } = await supabase.from("tasks").select("*").eq("tId", tId).single();
+
+    if (error) {
+      Alert.alert("Task could not be fetched, please try again");
+      return;
+    }
+
+    SetTask(data ?? null);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (tId) {
+        GetTask(tId);
+      }
+    }, [tId])
+  );
+
+  const EditTask = async () => {
+    if (!task) return;
+
+    if(task.title.trim() === '') {
+      Alert.alert("Title is required!");
+      return;
+    }
+        
+    const { data, error: userError } = await supabase.auth.getUser();
+
+    if(userError || !data.user) {
+      router.replace("../createUser");
+      return;
+    } 
+
+    SetIsSaving(true);
+
+    const { error: dbError } = await supabase.from("tasks").update({
+      title: task.title,
+      description: task.description,
+      isCompleted: task.isCompleted,
+      lastChanged: new Date().toISOString(),
+      uId: data.user.id,
+      aId: task.aId,
+    }).eq("tId", tId);
+
+    SetIsSaving(false);
+
+    if (dbError) {
+      Alert.alert("Task could not be edited, please try again");
+      return;
+    }
+
+    Alert.alert("Task successfully edited!");
+
+    router.back();
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Edit Task",
+          headerTitleStyle: defaultStyles.title
+        }}
+      />
+
+      {!task && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Task not found</Text>
+        </View>
+      )}
+
+      {task && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Edit Task</Text>
+          <KeyboardAvoidingView style={{ flex: 1 }} behavior={Platform.OS === "ios" ? "padding" : "height"}>
+            <TouchableWithoutFeedback onPress={Keyboard.dismiss}>
+              <View style={defaultStyles.container}>
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Title"
+                  value={task.title}
+                  onChangeText={(text) => SetTask(prev => prev ? { ...prev, title: text } : prev)}
+                />
+                <TextInput
+                  style={defaultStyles.inputText}
+                  placeholder="Text"
+                  value={task.description}
+                  onChangeText={(text) => SetTask(prev => prev ? { ...prev, description: text } : prev)}
+                />
+                <Pressable
+                  onPress={() => SetTask(prev => prev ? { ...prev, isCompleted: !prev.isCompleted } : prev)}
+                  style={defaultStyles.checkboxContainer}
+                >
+                  <View style={defaultStyles.checkbox}>
+                    {task.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+                  </View>
+                  <Text style={defaultStyles.checkboxLabel}>{task.isCompleted ? 'Completed' : 'Not Completed'}</Text>
+                </Pressable>
+
+                <Button title={isSaving ? "Saving..." : "Save"} onPress={EditTask} disabled={isSaving} />
+                {isSaving && (
+                  <ActivityIndicator size="large" />
+                )}
+                <Button title="Cancel" onPress={() => router.back()} />
+              </View>
+            </TouchableWithoutFeedback>
+          </KeyboardAvoidingView>
+        </View>
+      )}
+    </View>
+  )
+}
+

app/task/viewDetailsTask.tsx

@@ -0,0 +1,125 @@
+import { defaultStyles } from '@/constants/defaultStyles';
+import { supabase } from '@/lib/supabase';
+import { Session } from '@supabase/supabase-js';
+import { router, Stack, useFocusEffect, useLocalSearchParams } from 'expo-router';
+import { useCallback, useEffect, useState } from 'react';
+import { Alert, Button, Text, View } from "react-native";
+
+type Task = {
+  tId: string;
+  title: string;
+  description: string;
+  isCompleted: boolean;
+  lastChanged: string;
+  uId: string;
+  aId: string;
+}
+
+export default function ViewDetailsTask() {
+  const { tId } = useLocalSearchParams<{ tId: string }>();
+  const [task, SetTask] = useState<Task | null>(null)
+  const [session, SetSession] = useState<Session | null>(null)
+
+  useEffect(() => {
+    supabase.auth.getSession().then(({ data }) => SetSession(data.session ?? null))
+    const { data: sub } = supabase.auth.onAuthStateChange((_event, newSession) => {
+      SetSession(newSession)
+    })
+    return () => sub.subscription.unsubscribe()
+    },
+  [])
+
+  const GetTask = async (tId: string) => { 
+    const { data, error } = await supabase.from("tasks").select("*").eq("tId", tId).single();
+
+    if (error) {
+      Alert.alert("Task could not be fetched, please try again");
+      return;
+    }
+
+    SetTask(data ?? null);
+  }
+
+  useFocusEffect(
+    useCallback(() => {
+      if (session && tId) {
+        GetTask(tId);
+      }
+    }, [session, tId])
+  );
+
+  const DeleteTask = async (tId: string) => {
+    Alert.alert(
+      "Delete Task",
+      "Are you sure you want to delete this task?",
+      [
+        {
+          text: "Cancel",
+          style: "cancel"
+        },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            const { error } = await supabase.from("tasks").delete().eq("tId", tId);
+
+            if (error) {
+              Alert.alert("Task could not be deleted, please try again");
+              return;
+            }
+
+            Alert.alert("Task deleted successfully!");
+            router.back();
+          }
+        }
+      ]
+    )
+  }
+
+  return (
+    <View style={defaultStyles.container}>
+      <Stack.Screen
+        options={{
+          title: "Details",
+          headerTitleStyle: defaultStyles.title,
+          headerLeft: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Button title="Back" onPress={router.back} />
+              </View>
+            )
+          },
+          headerRight: () => {
+            return (
+              <View style={defaultStyles.buttonContainer}>
+                <Button title="Logout" onPress={async () => await supabase.auth.signOut()} />
+              </View>
+            )
+          },
+        }}
+      />
+
+      {!task && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>Task not found</Text>
+        </View>
+      )}
+      
+      {task && (
+        <View style={defaultStyles.container}>
+          <Text style={defaultStyles.title}>{task.title}</Text>
+          <Text style={defaultStyles.body}>{task.description}</Text>
+          <View style={defaultStyles.checkbox}>
+              {task.isCompleted && <Text style={defaultStyles.checkboxMark}>✓</Text>}
+          </View>
+          <Text style={defaultStyles.body}>{task.lastChanged}</Text>
+
+          <View style={defaultStyles.buttonContainer}>
+            <Button title="Edit" onPress={() => router.push({pathname: "/task/editTask", params: { tId: task.tId }})} />
+            <Button title="Delete" onPress={() => DeleteTask(task.tId)} />
+          </View>
+        </View>
+      )}
+    </View>
+  );
+}