Commit

Sources/PediFoods/State/SnackbarCenter.swift

@@ -0,0 +1,94 @@
+import Foundation
+import SwiftUI
+
+extension Notification.Name {
+    static let snackbarDidChange = Notification.Name("snackbarDidChange")
+}
+
+@MainActor
+final class SnackbarCenter: ObservableObject {
+    static let shared = SnackbarCenter()
+
+    @Published var current: SnackbarMessage?
+
+    private var dismissTask: Task<Void, Never>?
+
+    func show(
+        title: String,
+        style: SnackbarStyle = .info,
+        icon: String? = nil,
+        duration: TimeInterval = 3.5,
+        isPersistent: Bool = false,
+        action: (() -> Void)? = nil
+    ) {
+        dismissTask?.cancel()
+        dismissTask = nil
+        current = SnackbarMessage(
+            title: title,
+            style: style,
+            iconSystemName: icon,
+            duration: duration,
+            isPersistent: isPersistent,
+            action: action
+        )
+
+        guard isPersistent == false else { return }
+
+        dismissTask = Task { [weak self] in
+            let nanos = UInt64(max(0.2, duration) * 1_000_000_000)
+            try? await Task.sleep(nanoseconds: nanos)
+            guard !Task.isCancelled else { return }
+            self?.dismiss(animated: true)
+        }
+    }
+
+    func handleTap() {
+        guard current?.isPersistent != true else { return }
+        let action = current?.action
+        dismiss(animated: true)
+        action?()
+    }
+
+    func dismiss(animated: Bool) {
+        dismissTask?.cancel()
+        dismissTask = nil
+        if animated {
+            withAnimation(.spring(response: 0.3, dampingFraction: 0.9)) {
+                current = nil
+            }
+        } else {
+            current = nil
+        }
+    }
+
+    func dismissPersistent() {
+        guard current?.isPersistent == true else { return }
+        dismiss(animated: true)
+    }
+}
+
+enum SnackbarStyle: Sendable {
+    case info
+    case success
+    case warning
+    case error
+
+    var backgroundColor: Color {
+        switch self {
+        case .info: return Color(hex: "#3B93F7")
+        case .success: return Color(hex: "#2E7D32")
+        case .warning: return Color(hex: "#C77700")
+        case .error: return Color(hex: "#C62828")
+        }
+    }
+}
+
+struct SnackbarMessage: Identifiable {
+    let id = UUID()
+    let title: String
+    let style: SnackbarStyle
+    let iconSystemName: String?
+    let duration: TimeInterval
+    let isPersistent: Bool
+    let action: (() -> Void)?
+}