mana-swift-ui/Sources/ManaFeedbackUI/ManaFeedbackButton.swift

import ManaCore
import SwiftUI

/// Knopf, der das ``ManaFeedbackSheet`` präsentiert. Für Apps, die kein
/// eigenes Trigger-Element haben — sonst lieber der
/// `.manaFeedbackSheet(...)`-Modifier mit eigenem Button (HIG: kein
/// schwebendes Bubble-UI auf iOS, Platzierung in Settings/Konto/Toolbar).
///
/// ```swift
/// // eingeloggte App:
/// ManaFeedbackButton(
///     client: FeedbackClient(appId: "memoro") { try? await auth.freshAccessToken() },
///     isLoggedIn: session.isLoggedIn
/// )
/// // mit eigenem Label:
/// ManaFeedbackButton(client: client, isLoggedIn: false) {
///     Label("Feedback geben", systemImage: "bubble.left.and.bubble.right")
/// }
/// ```
public struct ManaFeedbackButton<Label: View>: View {
    private let client: FeedbackClient
    private let isLoggedIn: Bool
    private let label: () -> Label

    @State private var isPresented = false

    public init(
        client: FeedbackClient,
        isLoggedIn: Bool,
        @ViewBuilder label: @escaping () -> Label
    ) {
        self.client = client
        self.isLoggedIn = isLoggedIn
        self.label = label
    }

    public var body: some View {
        Button { isPresented = true } label: { label() }
            .manaFeedbackSheet(isPresented: $isPresented, client: client, isLoggedIn: isLoggedIn)
    }
}

extension ManaFeedbackButton where Label == SwiftUI.Label<Text, Image> {
    /// Standard-Label „Feedback" mit Sprechblasen-Icon.
    public init(client: FeedbackClient, isLoggedIn: Bool, title: String = "Feedback") {
        self.init(client: client, isLoggedIn: isLoggedIn) {
            SwiftUI.Label(title, systemImage: "bubble.left.and.bubble.right")
        }
    }
}

extension View {
    /// Hängt das ``ManaFeedbackSheet`` an einen Binding-gesteuerten
    /// Präsentations-Zustand — für Apps mit eigenem Trigger (z.B. ein
    /// Nav-Pill oder Settings-Row).
    public func manaFeedbackSheet(
        isPresented: Binding<Bool>,
        client: FeedbackClient,
        isLoggedIn: Bool
    ) -> some View {
        sheet(isPresented: isPresented) {
            ManaFeedbackSheet(client: client, isLoggedIn: isLoggedIn)
        }
    }
}