74 lines
1.9 KiB
Swift
74 lines
1.9 KiB
Swift
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//
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// TodosViewModel.swift
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// iris
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//
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// Created by Codex.
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//
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import Foundation
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@MainActor
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final class TodosViewModel: ObservableObject {
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@Published private(set) var todos: [TodoItem] = []
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@Published var newTitle: String = ""
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private let store: TodoStore
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init(store: TodoStore = TodoStore()) {
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self.store = store
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refresh()
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}
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func refresh() {
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todos = sortedItems(store.snapshot())
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}
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func addTodo() {
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let trimmed = normalizedTitle(newTitle)
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guard !trimmed.isEmpty else { return }
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store.add(title: trimmed)
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newTitle = ""
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refresh()
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}
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func deleteTodo(id: UUID) {
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store.delete(id: id)
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refresh()
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}
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func toggleCompleted(id: UUID) {
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guard let current = todos.first(where: { $0.id == id }) else { return }
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store.setCompleted(id: id, completed: !current.isCompleted)
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refresh()
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}
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func updateTitle(id: UUID, title: String) {
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let trimmed = normalizedTitle(title)
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guard !trimmed.isEmpty else { return }
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store.updateTitle(id: id, title: trimmed)
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refresh()
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}
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private func normalizedTitle(_ raw: String) -> String {
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raw.trimmingCharacters(in: .whitespacesAndNewlines)
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}
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private func sortedItems(_ items: [TodoItem]) -> [TodoItem] {
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items.sorted { lhs, rhs in
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if lhs.isCompleted != rhs.isCompleted {
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return !lhs.isCompleted
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}
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if lhs.isCompleted {
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let lhsDate = lhs.completedAt ?? lhs.updatedAt
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let rhsDate = rhs.completedAt ?? rhs.updatedAt
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if lhsDate != rhsDate {
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return lhsDate > rhsDate
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}
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} else if lhs.createdAt != rhs.createdAt {
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return lhs.createdAt > rhs.createdAt
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}
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return lhs.id.uuidString < rhs.id.uuidString
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}
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}
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}
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