refactor(toast): 공통 토스트 모디파이어를 적용한다

SodaLive/Sources/Common/BaseView.swift

@@ -36,3 +36,99 @@ struct BaseView_Previews: PreviewProvider {
         BaseView(isLoading: .constant(false)) {}
     }
 }
+
+private struct SodaToastModifier: ViewModifier {
+    @Binding var isPresented: Bool
+    let message: String
+    let autohideIn: Double
+
+    private let toastBackgroundColor = Color(
+        red: 59.0 / 255.0,
+        green: 185.0 / 255.0,
+        blue: 241.0 / 255.0,
+        opacity: 0.92
+    )
+
+    @State private var dismissWorkItem: DispatchWorkItem?
+
+    func body(content: Content) -> some View {
+        content
+            .overlay(alignment: .top) {
+                GeometryReader { geo in
+                    if isPresented, !message.isEmpty {
+                        Text(message)
+                            .appFont(size: 12, weight: .medium)
+                            .foregroundColor(.white)
+                            .multilineTextAlignment(.center)
+                            .lineLimit(2)
+                            .padding(.horizontal, 18)
+                            .padding(.vertical, 12)
+                            .background(
+                                Capsule()
+                                    .fill(toastBackgroundColor)
+                            )
+                            .overlay(
+                                Capsule()
+                                    .stroke(Color.white.opacity(0.15), lineWidth: 1)
+                            )
+                            .padding(.top, geo.safeAreaInsets.top + 8)
+                            .padding(.horizontal, 24)
+                            .frame(maxWidth: .infinity, alignment: .top)
+                            .transition(.move(edge: .top).combined(with: .opacity))
+                    }
+                }
+                .allowsHitTesting(false)
+            }
+            .animation(.easeInOut(duration: 0.2), value: isPresented)
+            .onAppear {
+                if isPresented {
+                    scheduleDismiss()
+                }
+            }
+            .onChange(of: isPresented) { newValue in
+                if newValue {
+                    scheduleDismiss()
+                } else {
+                    cancelDismiss()
+                }
+            }
+            .onDisappear {
+                cancelDismiss()
+            }
+    }
+
+    private func scheduleDismiss() {
+        cancelDismiss()
+
+        guard autohideIn > 0 else {
+            return
+        }
+
+        let workItem = DispatchWorkItem {
+            withAnimation {
+                isPresented = false
+            }
+        }
+
+        dismissWorkItem = workItem
+
+        DispatchQueue.main.asyncAfter(deadline: .now() + autohideIn, execute: workItem)
+    }
+
+    private func cancelDismiss() {
+        dismissWorkItem?.cancel()
+        dismissWorkItem = nil
+    }
+}
+
+extension View {
+    func sodaToast(isPresented: Binding<Bool>, message: String, autohideIn: Double = 2) -> some View {
+        modifier(
+            SodaToastModifier(
+                isPresented: isPresented,
+                message: message,
+                autohideIn: autohideIn
+            )
+        )
+    }
+}