#15 and #16 form to create and edit subject

app/src/main/java/be/ugent/sel/studeez/common/composable/ButtonComposable.kt

@@ -88,6 +88,28 @@ fun StealthButtonCardPreview() {
     }
 }
 
+
+@Composable
+fun DeleteButton(
+    onClick: () -> Unit,
+) {
+    BasicButton(
+        text = R.string.delete_subject,
+        modifier = Modifier.basicButton(),
+        onClick = onClick,
+        colors = ButtonDefaults.buttonColors(
+            backgroundColor = Color.Red,
+            contentColor = Color.White,
+        ),
+    )
+}
+
+@Preview
+@Composable
+fun DeleteButtonPreview() {
+    DeleteButton {}
+}
+
 @Composable
 fun DialogConfirmButton(@StringRes text: Int, action: () -> Unit) {
     Button(

app/src/main/java/be/ugent/sel/studeez/common/composable/tasks/SubjectEntry.kt

@@ -84,7 +84,7 @@ fun SubjectEntry(
                 }
             }
             StealthButton(
-                text = R.string.view_task,
+                text = R.string.view_tasks,
                 modifier = Modifier
                     .padding(start = 10.dp, end = 5.dp)
                     .weight(1f)

app/src/main/java/be/ugent/sel/studeez/common/composable/tasks/TaskEntry.kt

@@ -72,7 +72,7 @@ fun TaskEntry(
                     Text(
                         text = "${HoursMinutesSeconds(task.time)}",
                         color = color,
-                        modifier = Modifier.weight(5f)
+                        modifier = Modifier.weight(7f)
                     )
 
                 }

app/src/main/java/be/ugent/sel/studeez/domain/SubjectDAO.kt

@@ -10,4 +10,6 @@ interface SubjectDAO {
     fun saveSubject(newSubject: Subject)
 
     fun deleteSubject(oldSubject: Subject)
+
+    fun updateSubject(newSubject: Subject)
 }

app/src/main/java/be/ugent/sel/studeez/domain/implementation/FireBaseSubjectDAO.kt

@@ -28,6 +28,10 @@ class FireBaseSubjectDAO @Inject constructor(
         currentUserSubjectsCollection().document(oldSubject.id).delete()
     }
 
+    override fun updateSubject(newSubject: Subject) {
+        currentUserSubjectsCollection().document(newSubject.id).set(newSubject)
+    }
+
     private fun currentUserSubjectsCollection(): CollectionReference =
         firestore.collection(FireBaseCollections.USER_COLLECTION)
             .document(auth.currentUserId)

app/src/main/java/be/ugent/sel/studeez/screens/tasks/forms/SubjectFormScreen.kt

@@ -0,0 +1,106 @@
+package be.ugent.sel.studeez.screens.tasks.forms
+
+import androidx.annotation.StringRes
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material.OutlinedTextField
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import be.ugent.sel.studeez.R
+import be.ugent.sel.studeez.common.composable.BasicButton
+import be.ugent.sel.studeez.common.composable.DeleteButton
+import be.ugent.sel.studeez.common.composable.SecondaryScreenTemplate
+import be.ugent.sel.studeez.common.ext.basicButton
+import be.ugent.sel.studeez.common.ext.fieldModifier
+import be.ugent.sel.studeez.resources
+
+@Composable
+fun SubjectAddRoute(
+    goBack: () -> Unit,
+    open: (String) -> Unit,
+    viewModel: SubjectFormViewModel,
+) {
+    val uiState by viewModel.uiState
+    SubjectForm(
+        title = R.string.new_subject,
+        goBack = goBack,
+        uiState = uiState,
+        onConfirm = { viewModel.onCreate(open) },
+    )
+}
+
+@Composable
+fun SubjectEditRoute(
+    goBack: () -> Unit,
+    open: (String) -> Unit,
+    viewModel: SubjectFormViewModel,
+) {
+    val uiState by viewModel.uiState
+    SubjectForm(
+        title = R.string.edit_subject,
+        goBack = goBack,
+        uiState = uiState,
+        onConfirm = { viewModel.onEdit(open) },
+    ) {
+        DeleteButton(onClick = viewModel::onDelete)
+    }
+}
+
+@Composable
+fun SubjectForm(
+    @StringRes title: Int,
+    goBack: () -> Unit,
+    uiState: SubjectFormUiState,
+    onConfirm: () -> Unit,
+    extraButton: @Composable () -> Unit = {},
+) {
+    SecondaryScreenTemplate(
+        title = resources().getString(title),
+        popUp = goBack,
+    ) {
+        Column {
+            OutlinedTextField(
+                singleLine = true,
+                value = uiState.name,
+                onValueChange = {},
+                placeholder = { Text(stringResource(id = R.string.username)) },
+                modifier = Modifier.fieldModifier(),
+            )
+            BasicButton(
+                text = R.string.confirm,
+                modifier = Modifier.basicButton(),
+                onClick = onConfirm,
+            )
+            extraButton()
+        }
+    }
+}
+
+@Preview
+@Composable
+fun AddSubjectFormPreview() {
+    SubjectForm(
+        title = R.string.new_subject,
+        goBack = {},
+        uiState = SubjectFormUiState(),
+        onConfirm = {},
+    )
+}
+
+@Preview
+@Composable
+fun EditSubjectFormPreview() {
+    SubjectForm(
+        title = R.string.edit_subject,
+        goBack = {},
+        uiState = SubjectFormUiState(
+            name = "Test Subject",
+        ),
+        onConfirm = {},
+    ) {
+        DeleteButton {}
+    }
+}

app/src/main/java/be/ugent/sel/studeez/screens/tasks/forms/SubjectFormUiState.kt

@@ -0,0 +1,6 @@
+package be.ugent.sel.studeez.screens.tasks.forms
+
+data class SubjectFormUiState(
+    val name: String = "",
+    val color: Long = 0xFFF44336,
+)

app/src/main/java/be/ugent/sel/studeez/screens/tasks/forms/SubjectFormViewModel.kt

@@ -0,0 +1,63 @@
+package be.ugent.sel.studeez.screens.tasks.forms
+
+import androidx.compose.runtime.mutableStateOf
+import be.ugent.sel.studeez.data.SelectedSubject
+import be.ugent.sel.studeez.data.local.models.task.Subject
+import be.ugent.sel.studeez.domain.LogService
+import be.ugent.sel.studeez.domain.SubjectDAO
+import be.ugent.sel.studeez.navigation.StudeezDestinations
+import be.ugent.sel.studeez.screens.StudeezViewModel
+import dagger.hilt.android.lifecycle.HiltViewModel
+import javax.inject.Inject
+
+@HiltViewModel
+class SubjectFormViewModel @Inject constructor(
+    private val subjectDAO: SubjectDAO,
+    private val selectedSubject: SelectedSubject,
+    logService: LogService,
+) : StudeezViewModel(logService) {
+    var uiState = mutableStateOf(SubjectFormUiState())
+        private set
+
+    private val name: String
+        get() = uiState.value.name
+
+    private val color: Long
+        get() = uiState.value.color
+
+    fun onNameChange(newValue: String) {
+        uiState.value = uiState.value.copy(name = newValue)
+    }
+
+    fun onColorChange(newValue: Long) {
+        uiState.value = uiState.value.copy(color = newValue)
+    }
+
+    fun onDelete() {
+        subjectDAO.deleteSubject(selectedSubject())
+    }
+
+    fun onCreate(open: (String) -> Unit) {
+        val newSubject = Subject(
+            name = name,
+            argb_color = color,
+        )
+        subjectDAO.saveSubject(
+            newSubject
+        )
+        selectedSubject.set(newSubject)
+        // TODO open newly created subject
+//        open(StudeezDestinations.TASKS_SCREEN)
+    }
+
+    fun onEdit(open: (String) -> Unit) {
+        val newSubject = selectedSubject().copy(
+            name = name,
+            argb_color = color,
+        )
+        subjectDAO.updateSubject(
+            newSubject
+        )
+        open(StudeezDestinations.TASKS_SCREEN)
+    }
+}

app/src/main/res/values/strings.xml

@@ -44,10 +44,11 @@
     <string name="tasks">Tasks</string>
     <string name="new_subject">New Subject</string>
     <string name="new_task">New Task</string>
-    <string name="view_task">View</string>
+    <string name="edit_subject">Edit Subject</string>
     <string name="edit_task">Edit Task</string>
     <string name="delete_subject">Delete Subject</string>
     <string name="delete_task">Delete Task</string>
+    <string name="view_tasks">View</string>
 
     <!-- Sessions -->
     <string name="sessions">Sessions</string>