redesigned completion and reopening subjects/assignments/tasks and how it is rendered

app/(tabs)/subjects.tsx

@@ -1,18 +1,26 @@
-import { SUBJECT_COLORS } from '@/lib/subjectColors';
+import { SUBJECT_COLORS, type SubjectColor } from '@/lib/subjectColors';
 import { supabase } from '@/lib/supabase';
 import { Subject } from '@/lib/types';
 import { Session } from '@supabase/supabase-js';
 import { router, Stack, useFocusEffect } from 'expo-router';
 import { useCallback, useEffect, useState } from 'react';
-import { ActivityIndicator, Alert, Pressable, ScrollView, Text, View } from 'react-native';
+import {
-
+  ActivityIndicator,
-import type { SubjectColor } from '@/lib/subjectColors';
+  Alert,
+  Pressable,
+  ScrollView,
+  Text,
+  View,
+} from 'react-native';
 
 export default function Subjects() {
   const [subjects, SetSubjects] = useState<Subject[]>([]);
   const [session, SetSession] = useState<Session | null>(null);
   const [isLoading, SetIsLoading] = useState(true);
 
+  const activeSubjects = subjects.filter((subject) => subject.isActive);
+  const inactiveSubjects = subjects.filter((subject) => !subject.isActive);
+
   useEffect(() => {
     supabase.auth.getSession().then(({ data }) => {
       SetSession(data.session ?? null);
@@ -59,6 +67,73 @@ export default function Subjects() {
     }, [session])
   );
 
+  const RenderSubjectCard = (subject: Subject) => {
+    const colorKey: SubjectColor = subject.color ?? 'slate';
+    const colorSet = SUBJECT_COLORS[colorKey];
+    const firstLetter = subject.title?.trim().charAt(0).toUpperCase() || '?';
+
+    return (
+      <Pressable
+        key={subject.sId}
+        className="mb-4 rounded-3xl bg-app-surface p-4"
+        style={{
+          borderWidth: 1,
+          borderColor: colorSet.strong,
+        }}
+        onPress={() =>
+          router.push({
+            pathname: '/subject/viewDetailsSubject',
+            params: { sId: subject.sId },
+          })
+        }
+      >
+        <View className="flex-row items-center">
+          <View
+            className="mr-3 h-12 w-12 items-center justify-center rounded-2xl"
+            style={{ backgroundColor: colorSet.soft }}
+          >
+            <Text
+              className="text-base font-bold"
+              style={{ color: colorSet.strong }}
+            >
+              {firstLetter}
+            </Text>
+          </View>
+
+          <View className="flex-1">
+            <Text
+              className="text-base font-bold text-text-main"
+              numberOfLines={1}
+            >
+              {subject.title}
+            </Text>
+
+            <Text
+              className="mt-1 text-sm leading-5 text-text-secondary"
+              numberOfLines={2}
+            >
+              {subject.description || 'No description added.'}
+            </Text>
+          </View>
+
+          <View className="ml-3">
+            <View
+              className="rounded-full px-3 py-1"
+              style={{ backgroundColor: colorSet.soft }}
+            >
+              <Text
+                className="text-xs font-semibold"
+                style={{ color: colorSet.strong }}
+              >
+                {subject.isActive ? 'Active' : 'Inactive'}
+              </Text>
+            </View>
+          </View>
+        </View>
+      </Pressable>
+    );
+  };
+
   return (
     <View className="flex-1 bg-app-bg">
       <Stack.Screen
@@ -86,13 +161,6 @@ export default function Subjects() {
         }}
         showsVerticalScrollIndicator={false}
       >
-        <View className="mb-6">
-          <Text className="text-3xl font-bold text-text-main">Subjects</Text>
-          <Text className="mt-2 text-base leading-6 text-text-secondary">
-            Pick a subject to manage assignments and tasks.
-          </Text>
-        </View>
-
         {isLoading ? (
           <View className="items-center justify-center rounded-3xl border border-app-border bg-app-surface p-5">
             <ActivityIndicator size="large" color="#2563eb" />
@@ -111,74 +179,55 @@ export default function Subjects() {
           </View>
         ) : (
           <View>
-            {subjects.map((subject) => {
+            <View className="mb-3 mt-2 flex-row items-center justify-between">
-                const colorKey: SubjectColor = subject.color ?? 'slate';
+              <Text className="text-lg font-bold text-text-main">
-                const colorSet = SUBJECT_COLORS[colorKey];
+                Active Subjects
+              </Text>
 
-              const firstLetter =
+              <View className="rounded-full bg-app-subtle px-3 py-1">
-                subject.title?.trim().charAt(0).toUpperCase() || '?';
+                <Text className="text-xs font-semibold text-text-muted">
+                  {activeSubjects.length}
+                </Text>
+              </View>
+            </View>
 
-              return (
+            {activeSubjects.length === 0 ? (
-                <Pressable
+              <View className="mb-6 rounded-3xl border border-app-border bg-app-surface p-5">
-                  key={subject.sId}
+                <Text className="text-center text-base font-semibold text-text-secondary">
-                  className="mb-4 rounded-3xl bg-app-surface p-4"
+                  No active subjects
-                  style={{
+                </Text>
-                    borderWidth: 1,
+                <Text className="mt-1 text-center text-sm text-text-muted">
-                    borderColor: colorSet.strong,
+                  Subjects with ongoing work will show up here.
-                  }}
+                </Text>
-                  onPress={() =>
+              </View>
-                    router.push({
+            ) : (
-                      pathname: '/subject/viewDetailsSubject',
+              activeSubjects.map(RenderSubjectCard)
-                      params: { sId: subject.sId },
+            )}
-                    })
-                  }
-                >
-                  <View className="flex-row items-center">
-                    <View
-                      className="mr-3 h-12 w-12 items-center justify-center rounded-2xl"
-                      style={{ backgroundColor: colorSet.soft }}
-                    >
-                      <Text
-                        className="text-base font-bold"
-                        style={{ color: colorSet.strong }}
-                      >
-                        {firstLetter}
-                      </Text>
-                    </View>
 
-                    <View className="flex-1">
+            <View className="mb-3 mt-2 flex-row items-center justify-between">
-                      <Text
+              <Text className="text-lg font-bold text-text-main">
-                        className="text-base font-bold text-text-main"
+                Inactive Subjects
-                        numberOfLines={1}
+              </Text>
-                      >
-                        {subject.title}
-                      </Text>
 
-                      <Text
+              <View className="rounded-full bg-app-subtle px-3 py-1">
-                        className="mt-1 text-sm leading-5 text-text-secondary"
+                <Text className="text-xs font-semibold text-text-muted">
-                        numberOfLines={2}
+                  {inactiveSubjects.length}
-                      >
+                </Text>
-                        {subject.description || 'No description added.'}
+              </View>
-                      </Text>
+            </View>
-                    </View>
 
-                    <View className="ml-3">
+            {inactiveSubjects.length === 0 ? (
-                      <View
+              <View className="mb-6 rounded-3xl border border-app-border bg-app-surface p-5">
-                        className="rounded-full px-3 py-1"
+                <Text className="text-center text-base font-semibold text-text-secondary">
-                        style={{ backgroundColor: colorSet.soft }}
+                  No inactive subjects
-                      >
+                </Text>
-                        <Text
+                <Text className="mt-1 text-center text-sm text-text-muted">
-                          className="text-xs font-semibold"
+                  Completed or paused subjects will show up here.
-                          style={{ color: colorSet.strong }}
+                </Text>
-                        >
+              </View>
-                          {subject.isActive ? 'Active' : 'Inactive'}
+            ) : (
-                        </Text>
+              inactiveSubjects.map(RenderSubjectCard)
-                      </View>
+            )}
-                    </View>
-                  </View>
-                </Pressable>
-              );
-            })}
           </View>
         )}
 

app/assignment/viewDetailsAssignment.tsx

@@ -167,6 +167,32 @@ export default function ViewDetailsAssignment() {
     )
   }
 
+  const ToggleTaskCompletion = async (task: Task) => {
+    const nextIsCompleted = !task.isCompleted;
+
+    const { error } = await supabase
+      .from("tasks")
+      .update({
+        isCompleted: nextIsCompleted,
+        lastChanged: new Date().toISOString(),
+      })
+      .eq("tId", task.tId);
+
+    if (error) {
+      Alert.alert("Task could not be updated, please try again");
+      return;
+    }
+
+    try {
+      await CheckAssignmentCompletion(task.aId);
+    } catch {
+      Alert.alert("Failed to update assignment completion state");
+    }
+
+    await GetTasks(task.aId);
+    await GetAssignment(task.aId);
+  }
+
   const colorSet = getSubjectColorSet(subjectMeta.color);
 
   const completedTasks = tasks.filter((task) => task.isCompleted).length;
@@ -234,7 +260,7 @@ export default function ViewDetailsAssignment() {
       <SectionList
         className="flex-1"
         contentContainerStyle={{ paddingHorizontal: 20, paddingTop: 20, paddingBottom: 32 }}
-        sections={taskSections}
+        sections={totalTasks === 0 ? [] : taskSections}
         keyExtractor={(item) => item.tId}
         showsVerticalScrollIndicator={false}
         stickySectionHeadersEnabled={false}
@@ -248,18 +274,6 @@ export default function ViewDetailsAssignment() {
               }}
             >
               <View className="flex-row items-start">
-                <View
-                  className="mr-3 mt-1 h-6 w-6 items-center justify-center rounded-md border-2"
-                  style={{
-                    borderColor: assignment.isCompleted ? colorSet.strong : '#DDD6C8',
-                    backgroundColor: assignment.isCompleted ? colorSet.strong : '#EFEBE3',
-                  }}
-                >
-                  {assignment.isCompleted && (
-                    <Text className="text-sm font-bold text-text-inverse">✓</Text>
-                  )}
-                </View>
-
                 <View className="flex-1">
                   <Text className="text-2xl font-bold text-text-main">
                     {assignment.title}
@@ -399,18 +413,6 @@ export default function ViewDetailsAssignment() {
                 }
               >
                 <View className="flex-row items-start">
-                  <View
-                    className="mr-3 mt-1 h-6 w-6 items-center justify-center rounded-md border-2"
-                    style={{
-                      borderColor: item.isCompleted ? colorSet.strong : '#DDD6C8',
-                      backgroundColor: item.isCompleted ? colorSet.strong : '#EFEBE3',
-                    }}
-                  >
-                    {item.isCompleted && (
-                      <Text className="text-sm font-bold text-text-inverse">✓</Text>
-                    )}
-                  </View>
-
                   <View className="flex-1">
                     <Text
                       className={`text-base font-bold ${
@@ -434,6 +436,19 @@ export default function ViewDetailsAssignment() {
 
               {isOwner && (
                 <View className="mt-4 flex-row border-t border-app-border pt-4">
+                  <Pressable
+                    className="mr-3 flex-1 items-center justify-center rounded-2xl py-3"
+                    style={{ backgroundColor: item.isCompleted ? '#EFEBE3' : colorSet.soft }}
+                    onPress={() => ToggleTaskCompletion(item)}
+                  >
+                    <Text
+                      className="text-sm font-bold"
+                      style={{ color: colorSet.strong }}
+                    >
+                      {item.isCompleted ? 'Reopen' : 'Complete'}
+                    </Text>
+                  </Pressable>
+
                   <Pressable
                     className="mr-3 flex-1 items-center justify-center rounded-2xl border border-app-border bg-app-subtle py-3"
                     onPress={() =>
@@ -459,6 +474,19 @@ export default function ViewDetailsAssignment() {
             </View>
           );
         }}
+        ListEmptyComponent={
+          <View
+            className="mb-6 rounded-3xl border border-app-border bg-app-surface p-5"
+            style={{ borderColor: colorSet.strong }}
+          >
+            <Text className="text-center text-base font-semibold text-text-secondary">
+              No tasks needed yet
+            </Text>
+            <Text className="mt-1 text-center text-sm text-text-muted">
+              Add tasks if this assignment needs smaller steps.
+            </Text>
+          </View>
+        }
         renderSectionFooter={({ section }) =>
           section.data.length === 0 ? (
             <View className="mb-6 rounded-3xl border border-app-border bg-app-surface p-5" style={{ borderColor: colorSet.strong }}>

app/subject/viewDetailsSubject.tsx

@@ -78,6 +78,32 @@ export default function ViewDetailsSubject() {
     SetAssignments(data ?? []);
   };
 
+  const ToggleAssignmentCompletion = async (assignment: Assignment) => {
+    const nextIsCompleted = !assignment.isCompleted;
+
+    const { error } = await supabase
+      .from('assignments')
+      .update({
+        isCompleted: nextIsCompleted,
+        lastChanged: new Date().toISOString(),
+      })
+      .eq('aId', assignment.aId);
+
+    if (error) {
+      Alert.alert('Assignment could not be updated, please try again');
+      return;
+    }
+
+    try {
+      await CheckSubjectCompletion(assignment.sId);
+    } catch {
+      Alert.alert('Failed to update subject status');
+    }
+
+    await GetAssignments(assignment.sId);
+    await GetSubject(assignment.sId);
+  };
+
   useFocusEffect(
     useCallback(() => {
       if (!session || !sId) {
@@ -267,7 +293,7 @@ export default function ViewDetailsSubject() {
           paddingTop: 20,
           paddingBottom: 32,
         }}
-        sections={assignmentSections}
+        sections={totalAssignments === 0 ? [] : assignmentSections}
         keyExtractor={(item) => item.aId}
         showsVerticalScrollIndicator={false}
         stickySectionHeadersEnabled={false}
@@ -396,7 +422,7 @@ export default function ViewDetailsSubject() {
               }
             >
               <Text className="text-base font-bold text-text-inverse">
-                Create Assignment
+                Add Assignment
               </Text>
             </Pressable>
           </View>
@@ -422,15 +448,16 @@ export default function ViewDetailsSubject() {
                 borderColor: colorSet.strong,
               }}
             >
-              <Pressable
+              <View className="flex-row items-center">
-                onPress={() =>
+                <Pressable
-                  router.push({
+                  className="flex-1"
-                    pathname: '/assignment/viewDetailsAssignment',
+                  onPress={() =>
-                    params: { aId: item.aId },
+                    router.push({
-                  })
+                      pathname: '/assignment/viewDetailsAssignment',
-                }
+                      params: { aId: item.aId },
-              >
+                    })
-                <View className="flex-row items-center">
+                  }
+                >
                   <View className="flex-1">
                     <Text
                       className={`text-base font-bold ${
@@ -453,11 +480,24 @@ export default function ViewDetailsSubject() {
                       Deadline: {formatDate(item.deadline)}
                     </Text>
                   </View>
-                </View>
+                </Pressable>
-              </Pressable>
+              </View>
 
               {isOwner && (
                 <View className="mt-4 flex-row border-t border-app-border pt-4">
+                  <Pressable
+                    className="mr-3 flex-1 items-center justify-center rounded-2xl py-3"
+                    style={{ backgroundColor: item.isCompleted ? '#EFEBE3' : colorSet.soft }}
+                    onPress={() => ToggleAssignmentCompletion(item)}
+                  >
+                    <Text
+                      className="text-sm font-bold"
+                      style={{ color: colorSet.strong }}
+                    >
+                      {item.isCompleted ? 'Reopen' : 'Complete'}
+                    </Text>
+                  </Pressable>
+
                   <Pressable
                     className="mr-3 flex-1 items-center justify-center rounded-2xl border border-app-border bg-app-subtle py-3"
                     onPress={() =>
@@ -485,6 +525,16 @@ export default function ViewDetailsSubject() {
             </View>
           );
         }}
+        ListEmptyComponent={
+          <View className="mb-6 rounded-3xl border border-app-border bg-app-surface p-5">
+            <Text className="text-center text-base font-semibold text-text-secondary">
+              No assignments yet
+            </Text>
+            <Text className="mt-1 text-center text-sm text-text-muted">
+              Add one when this subject has work to track.
+            </Text>
+          </View>
+        }
         renderSectionFooter={({ section }) =>
           section.data.length === 0 ? (
             <View className="mb-6 rounded-3xl border border-app-border bg-app-surface p-5">

app/task/viewDetailsTask.tsx

@@ -212,18 +212,6 @@ export default function ViewDetailsTask() {
         }}
       >
         <View className="flex-row items-start">
-          <View
-            className="mr-3 mt-1 h-6 w-6 items-center justify-center rounded-md border-2"
-            style={{
-              borderColor: task.isCompleted ? colorSet.strong : '#DDD6C8',
-              backgroundColor: task.isCompleted ? colorSet.strong : '#EFEBE3',
-            }}
-          >
-            {task.isCompleted && (
-              <Text className="text-sm font-bold text-text-inverse">✓</Text>
-            )}
-          </View>
-
           <View className="flex-1">
             <Text
               className={`text-2xl font-bold ${