List tasks feature (#4)

This PR contains the work done to implement the **List Tasks** feature, and to integrate it into the main content view of the app. Reviewed-on: rock-n-code/todos-app#4 Co-authored-by: Javier Cicchelli <javier@rock-n-code.com> Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>
2026-02-10 15:31:52 +00:00
parent 0b8e5d8bd0
commit 2a3323b8e6
11 changed files with 679 additions and 45 deletions
@@ -0,0 +1,54 @@
+import Foundation
+import SwiftData
+
+/// Extension providing convenient initializers for fetching todos by group category.
+///
+/// This extension allows creating fetch descriptors that automatically filter and sort todos
+/// based on their completion status and due dates according to the specified `TodoGroup`.
+extension FetchDescriptor where T == Todo {
+
+    /// Creates a fetch descriptor for todos filtered and sorted by a specific group.
+    ///
+    /// This initializer provides a convenient way to fetch todos categorized by their temporal
+    /// relevance and completion status. Each group applies appropriate predicates and sort orders:
+    ///
+    /// - **Completed**: All tasks marked as done, sorted by completion date (most recent first)
+    /// - **Overdue**: Incomplete tasks with due dates before today, sorted by due date (most recent first)
+    /// - **Today**: Incomplete tasks due today, sorted by due date (earliest first)
+    /// - **Upcoming**: Incomplete tasks due after today, sorted by due date (earliest first)
+    ///
+    /// - Parameters:
+    ///   - group: The todo group category to filter by.
+    ///   - calendar: The calendar to use for date calculations. Defaults to `.current`.
+    init(
+        group: TodoGroup,
+        calendar: Calendar = .current
+    ) {
+        let today = calendar.startOfDay(for: .now)
+        let tomorrow = calendar.date(byAdding: .day, value: 1, to: today) ?? today
+
+        switch group {
+            case .completed:
+                self.init(
+                    predicate: #Predicate { $0.completed != nil },
+                    sortBy: [.init(\.completed, order: .reverse)]
+                )
+            case .overdue:
+                self.init(
+                    predicate: #Predicate { $0.completed == nil && $0.due < today },
+                    sortBy: [.init(\.due, order: .reverse)]
+                )
+            case .today:
+                self.init(
+                    predicate: #Predicate { $0.completed == nil && $0.due >= today && $0.due < tomorrow },
+                    sortBy: [.init(\.due, order: .forward)]
+                )
+            case .upcoming:
+                self.init(
+                    predicate: #Predicate { $0.completed == nil && $0.due >= tomorrow },
+                    sortBy: [.init(\.due, order: .forward)]
+                )
+        }
+    }
+
+}