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jay-tux
2025-02-19 09:27:21 +01:00
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36
composeApp/src/commonMain/composeResources/drawable/compose-multiplatform.xml Normal file
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23
composeApp/src/desktopMain/kotlin/com/jaytux/grader/App.kt Normal file
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package com.jaytux.grader
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.runtime.*
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import com.jaytux.grader.ui.CoursesView
import com.jaytux.grader.viewmodel.CourseListState
import org.jetbrains.compose.ui.tooling.preview.Preview
@Composable
@Preview
fun App() {
MaterialTheme {
val courseList = CourseListState()
Surface(Modifier.fillMaxSize().padding(10.dp)) {
CoursesView(courseList)
}
}
}

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composeApp/src/desktopMain/kotlin/com/jaytux/grader/data/DSL.kt Normal file
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package com.jaytux.grader.data
import org.jetbrains.exposed.dao.id.CompositeIdTable
import org.jetbrains.exposed.dao.id.UUIDTable
import org.jetbrains.exposed.sql.Table
object Courses : UUIDTable("courses") {
val name = varchar("name", 50).uniqueIndex()
}
object Editions : UUIDTable("editions") {
val courseId = reference("course_id", Courses.id)
val name = varchar("name", 50)
init {
uniqueIndex(courseId, name)
}
}
object Groups : UUIDTable("groups") {
val editionId = reference("edition_id", Editions.id)
val name = varchar("name", 50)
init {
uniqueIndex(editionId, name)
}
}
object Students : UUIDTable("students") {
val name = varchar("name", 50)
val note = text("note")
}
object GroupStudents : Table("grpStudents") {
val groupId = reference("group_id", Groups.id)
val studentId = reference("student_id", Students.id)
override val primaryKey = PrimaryKey(groupId, studentId)
}
object SoloStudents : Table("soloStudents") {
val editionId = reference("edition_id", Editions.id)
val studentId = reference("student_id", Students.id)
override val primaryKey = PrimaryKey(studentId)
}
object GroupAssignments : UUIDTable("grpAssgmts") {
val editionId = reference("edition_id_", Editions.id)
val name = varchar("name_", 50)
val assignment = text("assignment_")
}
object SoloAssignments : UUIDTable("soloAssgmts") {
val editionId = GroupAssignments.reference("edition_id", Editions.id)
val name = GroupAssignments.varchar("name", 50)
val assignment = GroupAssignments.text("assignment")
}
object GroupFeedbacks : CompositeIdTable("grpFdbks") {
val groupAssignmentId = reference("group_assignment_id", GroupAssignments.id)
val groupId = reference("group_id", Groups.id)
val feedback = text("feedback")
val grade = varchar("grade", 32)
override val primaryKey = PrimaryKey(groupAssignmentId, groupId)
}
object IndividualFeedbacks : CompositeIdTable("indivFdbks") {
val groupAssignmentId = reference("group_assignment_id", GroupAssignments.id)
val groupId = reference("group_id", Groups.id)
val studentId = reference("student_id", Students.id)
val feedback = text("feedback")
val grade = varchar("grade", 32)
override val primaryKey = PrimaryKey(groupAssignmentId, studentId)
}
object SoloFeedbacks : CompositeIdTable("soloFdbks") {
val soloAssignmentId = reference("solo_assignment_id", SoloAssignments.id)
val studentId = reference("student_id", Students.id)
val feedback = text("feedback")
val grade = varchar("grade", 32)
override val primaryKey = PrimaryKey(soloAssignmentId, studentId)
}

22
composeApp/src/desktopMain/kotlin/com/jaytux/grader/data/Database.kt Normal file
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package com.jaytux.grader.data
import org.jetbrains.exposed.sql.Database
import org.jetbrains.exposed.sql.SchemaUtils
import org.jetbrains.exposed.sql.transactions.transaction
object Database {
val db by lazy {
val actual = Database.connect("jdbc:sqlite:file:./grader.db", "org.sqlite.JDBC")
transaction {
SchemaUtils.create(
Courses, Editions, Groups,
Students, GroupStudents, SoloStudents,
GroupAssignments, SoloAssignments,
GroupFeedbacks, IndividualFeedbacks, SoloFeedbacks
)
}
actual
}
fun init() { db }
}

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composeApp/src/desktopMain/kotlin/com/jaytux/grader/data/Entities.kt Normal file
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package com.jaytux.grader.data
import org.jetbrains.exposed.dao.Entity
import org.jetbrains.exposed.dao.EntityClass
import org.jetbrains.exposed.dao.id.CompositeID
import org.jetbrains.exposed.dao.id.EntityID
import org.jetbrains.exposed.sql.transactions.transaction
import java.util.UUID
class Course(id: EntityID<UUID>) : Entity<UUID>(id) {
companion object : EntityClass<UUID, Course>(Courses)
fun loadEditions() = transaction { Edition.find { Editions.courseId eq this@Course.id }.toList() }
var name by Courses.name
}
class Edition(id: EntityID<UUID>) : Entity<UUID>(id) {
companion object : EntityClass<UUID, Edition>(Editions)
var course by Course referencedOn Editions.courseId
var name by Editions.name
val groups by Group referrersOn Groups.editionId
val soloStudents by Student via SoloStudents
}
class Group(id: EntityID<UUID>) : Entity<UUID>(id) {
companion object : EntityClass<UUID, Group>(Groups)
var edition by Edition referencedOn Groups.editionId
var name by Groups.name
val students by Student via GroupStudents
}
class Student(id: EntityID<UUID>) : Entity<UUID>(id) {
companion object : EntityClass<UUID, Student>(Students)
var name by Students.name
var note by Students.note
val groups by Group via GroupStudents
val soloCourses by Edition via SoloStudents
}
class GroupAssignment(id: EntityID<UUID>) : Entity<UUID>(id) {
companion object : EntityClass<UUID, GroupAssignment>(GroupAssignments)
var edition by Edition referencedOn GroupAssignments.editionId
var name by GroupAssignments.name
var assignment by GroupAssignments.assignment
}
class SoloAssignment(id: EntityID<UUID>) : Entity<UUID>(id) {
companion object : EntityClass<UUID, SoloAssignment>(SoloAssignments)
var edition by Edition referencedOn SoloAssignments.editionId
var name by SoloAssignments.name
var assignment by SoloAssignments.assignment
}
class GroupFeedback(id: EntityID<CompositeID>) : Entity<CompositeID>(id) {
companion object : EntityClass<CompositeID, GroupFeedback>(GroupFeedbacks)
var group by Group referencedOn GroupFeedbacks.groupId
var assignment by GroupAssignment referencedOn GroupFeedbacks.groupAssignmentId
var feedback by GroupFeedbacks.feedback
var grade by GroupFeedbacks.grade
}
class IndividualFeedback(id: EntityID<CompositeID>) : Entity<CompositeID>(id) {
companion object : EntityClass<CompositeID, IndividualFeedback>(IndividualFeedbacks)
var student by Student referencedOn IndividualFeedbacks.studentId
var assignment by SoloAssignment referencedOn IndividualFeedbacks.groupAssignmentId
var feedback by IndividualFeedbacks.feedback
var grade by IndividualFeedbacks.grade
}
class SoloFeedback(id: EntityID<CompositeID>) : Entity<CompositeID>(id) {
companion object : EntityClass<CompositeID, SoloFeedback>(SoloFeedbacks)
var student by Student referencedOn SoloFeedbacks.studentId
var assignment by SoloAssignment referencedOn SoloFeedbacks.soloAssignmentId
var feedback by SoloFeedbacks.feedback
var grade by SoloFeedbacks.grade
}

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composeApp/src/desktopMain/kotlin/com/jaytux/grader/main.kt Normal file
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package com.jaytux.grader
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.application
import com.jaytux.grader.App
import com.jaytux.grader.data.Database
fun main(){
Database.init()
application {
Window(
onCloseRequest = ::exitApplication,
title = "Grader",
) {
App()
}
}
}

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composeApp/src/desktopMain/kotlin/com/jaytux/grader/ui/Courses.kt Normal file
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package com.jaytux.grader.ui
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.material.Icon
import androidx.compose.material.IconButton
import androidx.compose.material.OutlinedTextField
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Delete
import androidx.compose.material.icons.filled.Edit
import androidx.compose.material.icons.filled.PlayArrow
import androidx.compose.material3.Button
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.*
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.font.FontStyle
import androidx.compose.ui.unit.DpSize
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.*
import com.jaytux.grader.data.Course
import com.jaytux.grader.viewmodel.CourseListState
@Composable
fun CoursesView(state: CourseListState) {
val data by state.courses.entities
var showDialog by remember { mutableStateOf(false) }
if(data.isEmpty()) {
Box(Modifier.fillMaxSize()) {
Column(Modifier.align(Alignment.Center)) {
Text("You have no courses yet.", Modifier.align(Alignment.CenterHorizontally))
Button({ showDialog = true }, Modifier.align(Alignment.CenterHorizontally)) {
Text("Add a course")
}
}
}
}
else {
LazyColumn(Modifier.fillMaxSize()) {
items(data) { CourseWidget(it) { state.delete(it) } }
item {
Button({ showDialog = true }, Modifier.fillMaxWidth()) {
Text("Add course")
}
}
}
}
if(showDialog) AddCourseDialog(data.map { it.name }, { showDialog = false }) { state.new(it) }
}
@Composable
fun AddCourseDialog(taken: List<String>, onClose: () -> Unit, onSave: (String) -> Unit) = DialogWindow(
onCloseRequest = onClose,
state = rememberDialogState(size = DpSize(400.dp, 300.dp), position = WindowPosition(Alignment.Center))
) {
Surface(Modifier.fillMaxSize().padding(10.dp)) {
Box(Modifier.fillMaxSize()) {
var name by remember { mutableStateOf("") }
Column(Modifier.align(Alignment.Center)) {
OutlinedTextField(name, { name = it }, Modifier.fillMaxWidth(), label = { Text("Course name") }, isError = name in taken)
Row {
Button({ onClose() }, Modifier.weight(0.45f)) { Text("Cancel") }
Spacer(Modifier.weight(0.1f))
Button({ onSave(name); onClose() }, Modifier.weight(0.45f)) { Text("Save") }
}
}
}
}
}
@Composable
fun CourseWidget(course: Course, onDelete: () -> Unit) {
val editions = remember(course) { course.loadEditions().size }
Surface(Modifier.fillMaxWidth().padding(horizontal = 5.dp, vertical = 10.dp), shape = MaterialTheme.shapes.medium, tonalElevation = 2.dp, shadowElevation = 2.dp) {
Row {
Column(Modifier.weight(1f)) {
Text(course.name, Modifier.padding(5.dp), style = MaterialTheme.typography.headlineMedium)
Row {
Spacer(Modifier.width(15.dp))
Text("$editions editions", fontStyle = FontStyle.Italic)
}
}
Column {
IconButton({ onDelete() }) { Icon(Icons.Default.Delete, "Remove") }
IconButton({ TODO() }) { Icon(Icons.Default.Edit, "Edit") }
}
}
}
}

43
composeApp/src/desktopMain/kotlin/com/jaytux/grader/viewmodel/DbState.kt Normal file
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package com.jaytux.grader.viewmodel
import androidx.compose.runtime.MutableState
import androidx.compose.runtime.State
import androidx.compose.runtime.mutableStateOf
import com.jaytux.grader.data.Course
import com.jaytux.grader.data.Edition
import com.jaytux.grader.data.Editions
import org.jetbrains.exposed.dao.Entity
import org.jetbrains.exposed.sql.Transaction
import org.jetbrains.exposed.sql.transactions.transaction
import java.util.*
class RawDbState<T: Entity<UUID>>(private val loader: (Transaction.() -> List<T>)) {
private fun <T> MutableState<T>.immutable(): State<T> = this@immutable
private val rawEntities by lazy {
mutableStateOf(transaction { loader() })
}
val entities = rawEntities.immutable()
fun refresh() {
rawEntities.value = transaction { loader() }
}
}
class CourseListState {
val courses = RawDbState { Course.all().toList() }
fun new(name: String) {
transaction { Course.new { this.name = name } }
courses.refresh()
}
fun delete(course: Course) {
transaction { course.delete() }
courses.refresh()
}
}
class EditionListState(private val course: Course) {
val editions = RawDbState { Edition.find { Editions.courseId eq course.id }.toList() }
}