mirror of
https://github.com/passepartoutvpn/passepartout-apple.git
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3540e1cb1a
- Split suggested product and full version - Hide sections with no products - Hide full features if no full products - Fail if no purchasable products
199 lines
5.2 KiB
Swift
199 lines
5.2 KiB
Swift
//
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// PaywallModifier.swift
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// Passepartout
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//
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// Created by Davide De Rosa on 9/11/24.
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// Copyright (c) 2024 Davide De Rosa. All rights reserved.
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//
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// https://github.com/passepartoutvpn
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//
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// This file is part of Passepartout.
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//
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// Passepartout is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Passepartout is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
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//
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import CommonLibrary
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import SwiftUI
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public struct PaywallModifier: ViewModifier {
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@EnvironmentObject
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private var iapManager: IAPManager
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@Binding
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private var reason: PaywallReason?
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private let okTitle: String?
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private let okAction: (() -> Void)?
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@State
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private var isConfirming = false
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@State
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private var isRestricted = false
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@State
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private var isPurchasing = false
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public init(
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reason: Binding<PaywallReason?>,
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okTitle: String? = nil,
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okAction: (() -> Void)? = nil
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) {
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_reason = reason
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self.okTitle = okTitle
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self.okAction = okAction
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}
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public func body(content: Content) -> some View {
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content
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.alert(
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Strings.Views.Paywall.Alerts.Confirmation.title,
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isPresented: $isConfirming,
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actions: confirmationActions,
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message: confirmationMessage
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)
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.alert(
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Strings.Views.Paywall.Alerts.Restricted.title,
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isPresented: $isRestricted,
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actions: restrictedActions,
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message: restrictedMessage
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)
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.themeModal(
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isPresented: $isPurchasing,
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options: .init(size: .custom(width: 400, height: 400)),
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content: modalDestination
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)
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.onChange(of: isRestricted) {
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if !$0 {
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reason = nil
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}
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}
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.onChange(of: isPurchasing) {
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if !$0 {
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reason = nil
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}
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}
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.onChange(of: reason) {
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guard let reason = $0 else {
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return
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}
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if !iapManager.isRestricted {
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if reason.needsConfirmation {
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isConfirming = true
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} else {
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isPurchasing = true
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}
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} else {
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isRestricted = true
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}
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}
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}
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}
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private extension PaywallModifier {
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var ineligibleFeatures: [String] {
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guard let reason else {
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return []
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}
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return iapManager
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.excludingEligible(from: reason.requiredFeatures)
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.map(\.localizedDescription)
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.sorted()
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}
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func alertMessage(startingWith header: String, features: [String]) -> String {
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header + "\n\n" + features
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.joined(separator: "\n")
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}
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}
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private extension IAPManager {
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func excludingEligible(from features: Set<AppFeature>) -> Set<AppFeature> {
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features.filter {
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!isEligible(for: $0)
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}
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}
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}
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// MARK: - Confirmation alert
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private extension PaywallModifier {
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@ViewBuilder
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func confirmationActions() -> some View {
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Button(Strings.Global.Actions.purchase) {
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// IMPORTANT: retain reason because it serves paywall content
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isPurchasing = true
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}
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if let okTitle {
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Button(okTitle) {
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reason = nil
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okAction?()
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}
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}
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Button(Strings.Global.Actions.cancel, role: .cancel) {
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reason = nil
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}
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}
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func confirmationMessage() -> some View {
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Text(confirmationMessageString)
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}
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var confirmationMessageString: String {
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alertMessage(
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startingWith: Strings.Views.Paywall.Alerts.Confirmation.message,
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features: ineligibleFeatures
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)
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}
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}
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// MARK: - Restricted alert
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private extension PaywallModifier {
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func restrictedActions() -> some View {
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Button(Strings.Global.Nouns.ok) {
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//
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}
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}
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func restrictedMessage() -> some View {
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Text(restrictedMessageString)
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}
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var restrictedMessageString: String {
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alertMessage(
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startingWith: Strings.Views.Paywall.Alerts.Restricted.message,
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features: ineligibleFeatures
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)
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}
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}
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// MARK: - Paywall
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private extension PaywallModifier {
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func modalDestination() -> some View {
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reason.map {
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PaywallView(
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isPresented: $isPurchasing,
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features: iapManager.excludingEligible(from: $0.requiredFeatures),
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suggestedProduct: $0.suggestedProduct
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)
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.themeNavigationStack()
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}
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}
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}
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