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128 changes: 128 additions & 0 deletions
128
CanvasPlusPlayground/Features/Grades/GradeCalculator/CourseGradeCalculator.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| // | ||
| // CourseGradeCalculator.swift | ||
| // CanvasPlusPlayground | ||
| // | ||
| // Created by Rahul on 12/19/24. | ||
| // | ||
|
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||
| import SwiftUI | ||
|
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||
| @Observable | ||
| class CourseGradeCalculatorBridge { | ||
| typealias GradeCalculatorAssignmentGroup = CourseGradeCalculator.GradeCalculatorAssignmentGroup | ||
|
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| private(set) var _calculator: CourseGradeCalculator | ||
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| var assignmentGroups: [GradeCalculatorAssignmentGroup] { | ||
| get { | ||
| _calculator.assignmentGroups | ||
| } | ||
|
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| set { | ||
| _calculator.assignmentGroups = newValue | ||
| } | ||
| } | ||
|
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| var finalGrade: String { | ||
| _calculator.finalGrade | ||
| } | ||
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| var expandedAssignmentGroups: [GradeCalculatorAssignmentGroup: Bool] = [:] | ||
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| init(from assignmentGroups: [AssignmentGroup]) { | ||
| _calculator = CourseGradeCalculator(from: assignmentGroups) | ||
| expandedAssignmentGroups = Dictionary( | ||
| uniqueKeysWithValues: _calculator.assignmentGroups.lazy.map { ($0, true) } | ||
| ) | ||
| } | ||
| } | ||
|
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| struct CourseGradeCalculator { | ||
| struct GradeCalculatorAssignmentGroup: Identifiable, Hashable { | ||
| let id: Int | ||
| let name: String | ||
| var assignments: [GradeCalculatorAssignment] | ||
| var groupWeight: Double | ||
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| var assignmentWeight: Double { | ||
| groupWeight / Double(assignments.count) | ||
| } | ||
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| var displayWeight: String { | ||
| "\((groupWeight * 100.0).truncatingTrailingZeros)%" | ||
| } | ||
| } | ||
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| struct GradeCalculatorAssignment: Identifiable, Hashable { | ||
| let id: Int | ||
| let name: String | ||
| var weight: Double? | ||
| var pointsPossible: Double? | ||
| var score: Double? | ||
| } | ||
|
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| var assignmentGroups: [GradeCalculatorAssignmentGroup] | ||
|
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| var finalGrade: String { | ||
| var grade = calculateFinalGrade() | ||
| if grade.isNaN { | ||
| grade = 0 | ||
| } | ||
|
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| return Double(grade * 100.0).rounded(toPlaces: 2) + "%" | ||
| } | ||
|
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| init(from canvasAssignmentGroup: [AssignmentGroup]) { | ||
| assignmentGroups = canvasAssignmentGroup.map { group in | ||
| GradeCalculatorAssignmentGroup( | ||
| id: group.id ?? UUID().hashValue, | ||
| name: group.name ?? "", | ||
| assignments: group.assignments?.map { assignment in | ||
| GradeCalculatorAssignment( | ||
| id: assignment.id, | ||
| name: assignment.name ?? "", | ||
| weight: nil, | ||
| pointsPossible: assignment.pointsPossible ?? 0, | ||
| score: assignment.submission?.score | ||
| ) | ||
| } ?? [], | ||
| groupWeight: (Double(group.groupWeight ?? 0) / 100.0) | ||
| ) | ||
| } | ||
| } | ||
|
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| // MARK: - Private | ||
| private func calculateFinalGrade() -> Double { | ||
| var totalWeight = assignmentGroups.reduce(0.0) { total, group in | ||
| total + group.groupWeight | ||
| } | ||
|
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| // Groups are unweighted | ||
| if totalWeight == 0 { | ||
| var totalPossible: Double = 0 | ||
| let earned: Double = assignmentGroups.reduce(0) { total, group in | ||
| total + group.assignments.reduce(0) { total, assignment in | ||
| guard let score = assignment.score, let pointsPossible = assignment.pointsPossible else { | ||
| return total | ||
| } | ||
|
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| totalPossible += pointsPossible | ||
|
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| return Double(total + score) | ||
| } | ||
| } | ||
|
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| return earned / totalPossible | ||
| } else { | ||
| return assignmentGroups.reduce(0) { total, group in | ||
| total + group.assignments.reduce(0) { total, assignment in | ||
| guard let score = assignment.score, let pointsPossible = assignment.pointsPossible else { | ||
| return total | ||
| } | ||
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| return total + (score / pointsPossible) * (assignment.weight ?? group.assignmentWeight) | ||
| } | ||
| } / totalWeight | ||
| } | ||
| } | ||
| } |
115 changes: 115 additions & 0 deletions
115
CanvasPlusPlayground/Features/Grades/GradeCalculator/GradeCalculatorView.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| // | ||
| // GradeCalculatorView.swift | ||
| // CanvasPlusPlayground | ||
| // | ||
| // Created by Rahul on 12/19/24. | ||
| // | ||
|
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||
| import SwiftUI | ||
|
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| struct GradeCalculatorView: View { | ||
| @Environment(\.dismiss) private var dismiss | ||
| @State private var gradeCalculator: CourseGradeCalculatorBridge | ||
|
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| @FocusState private var assignmentRowFocus: CourseGradeCalculator.GradeCalculatorAssignment? | ||
|
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| init(assignmentGroups: [AssignmentGroup]) { | ||
| _gradeCalculator = .init( | ||
| initialValue: CourseGradeCalculatorBridge(from: assignmentGroups) | ||
| ) | ||
| } | ||
|
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| var body: some View { | ||
| List($gradeCalculator.assignmentGroups, id: \.id) { $group in | ||
| DisclosureGroup( | ||
| isExpanded: isExpanded(for: group) | ||
| ) { | ||
| ForEach($group.assignments, id: \.id) { $assignment in | ||
| assignmentRow(for: $assignment) | ||
| } | ||
| } label: { | ||
| groupHeader(for: group) | ||
| } | ||
| } | ||
| #if os(macOS) | ||
| .frame(width: 600, height: 400) | ||
| #endif | ||
| .navigationTitle("Calculate Grades") | ||
| .toolbar { | ||
| ToolbarItem(placement: .destructiveAction) { | ||
| Text("Total: \(gradeCalculator.finalGrade)") | ||
| .contentTransition(.numericText()) | ||
| .animation(.default, value: gradeCalculator.finalGrade) | ||
| } | ||
|
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| ToolbarItem(placement: .cancellationAction) { | ||
| Button { | ||
| dismiss() | ||
| } label: { | ||
| #if os(macOS) | ||
| Text("Done") | ||
| #else | ||
| Image(systemName: "xmark") | ||
| #endif | ||
| } | ||
| .keyboardShortcut(assignmentRowFocus == nil ? .defaultAction : .none) | ||
| } | ||
|
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| ToolbarItemGroup(placement: .keyboard) { | ||
| Spacer() | ||
| Button("Done") { | ||
| assignmentRowFocus = nil | ||
| } | ||
| .bold() | ||
| } | ||
| } | ||
| } | ||
|
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| private func groupHeader(for group: CourseGradeCalculatorBridge.GradeCalculatorAssignmentGroup) -> some View { | ||
| HStack { | ||
| Text(group.name) | ||
| Spacer() | ||
| Text("\(group.displayWeight)") | ||
| } | ||
| .bold() | ||
| .padding(4) | ||
| } | ||
|
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| private func assignmentRow(for assignment: Binding<CourseGradeCalculator.GradeCalculatorAssignment>) -> some View { | ||
| HStack { | ||
| Text(assignment.wrappedValue.name) | ||
|
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| Spacer() | ||
|
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| TextField( | ||
| "Score", | ||
| value: assignment.score, | ||
| format: .number | ||
| ) | ||
| .focused($assignmentRowFocus, equals: assignment.wrappedValue) | ||
| .fixedSize() | ||
| .font(.title3) | ||
| .fontWeight(.semibold) | ||
| .foregroundStyle(.tint) | ||
| #if os(iOS) | ||
| .keyboardType(.numberPad) | ||
| #endif | ||
|
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| Text( | ||
| " / " + | ||
| "\(assignment.wrappedValue.pointsPossible?.truncatingTrailingZeros ?? "-")" | ||
| ) | ||
| } | ||
| .padding(.vertical, 4) | ||
| } | ||
|
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| private func isExpanded( | ||
| for group: CourseGradeCalculatorBridge.GradeCalculatorAssignmentGroup | ||
| ) -> Binding<Bool> { | ||
| .init { | ||
| gradeCalculator.expandedAssignmentGroups[group, default: true] | ||
| } set: { newValue in | ||
| gradeCalculator.expandedAssignmentGroups[group] = newValue | ||
| } | ||
| } | ||
| } |