passepartout-apple/Passepartout/Library/Sources/UILibrary/Views/UI/PurchaseButtonModifier.swift

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//
// PurchaseButtonModifier.swift
// Passepartout
//
// Created by Davide De Rosa on 11/5/24.
// Copyright (c) 2024 Davide De Rosa. All rights reserved.
//
// https://github.com/passepartoutvpn
//
// This file is part of Passepartout.
//
// Passepartout is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Passepartout is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
//
import CommonLibrary
import SwiftUI
public struct PurchaseButtonModifier: ViewModifier {
@EnvironmentObject
private var iapManager: IAPManager
private let title: String
private let label: String?
private let feature: AppFeature
private let showsIfRestricted: Bool
@Binding
private var paywallReason: PaywallReason?
public init(
_ title: String,
label: String? = nil,
feature: AppFeature,
showsIfRestricted: Bool,
paywallReason: Binding<PaywallReason?>
) {
self.title = title
self.label = label
self.feature = feature
self.showsIfRestricted = showsIfRestricted
_paywallReason = paywallReason
}
public func body(content: Content) -> some View {
switch iapManager.paywallReason(forFeature: feature) {
case .purchase:
purchaseView
case .restricted:
if showsIfRestricted {
content
}
default:
content
}
}
}
private extension PurchaseButtonModifier {
var purchaseView: some View {
HStack {
if let label {
Text(label)
Spacer()
}
purchaseButton
}
}
var purchaseButton: some View {
Button(title) {
paywallReason = .purchase(feature)
}
}
}