//
//  MigrateView+Section.swift
//  Passepartout
//
//  Created by Davide De Rosa on 11/13/24.
//  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

extension MigrateView {
    struct SectionView: View {
        let profiles: [MigratableProfile]

        @Binding
        var excluded: Set<UUID>

        let statuses: [UUID: MigrationStatus]

        var body: some View {
            Section {
                ForEach(profiles, id: \.id) {
                    if let status = statuses[$0.id] {
                        row(forProfile: $0, status: status)
                    } else {
                        button(forProfile: $0)
                    }
                }
            }
        }

        func button(forProfile profile: MigratableProfile) -> some View {
            Button {
                if excluded.contains(profile.id) {
                    excluded.remove(profile.id)
                } else {
                    excluded.insert(profile.id)
                }
            } label: {
                row(forProfile: profile, status: nil)
            }
        }

        func row(forProfile profile: MigratableProfile, status: MigrationStatus?) -> some View {
            HStack {
                VStack(alignment: .leading) {
                    Text(profile.name)
                        .font(.headline)

                    profile.lastUpdate.map {
                        Text($0.localizedDescription(style: .timestamp))
                            .font(.subheadline)
                    }
                }
                Spacer()
                if let status {
                    icon(forStatus: status)
                } else if !excluded.contains(profile.id) {
                    ThemeImage(.marked)
                }
            }
        }

        @ViewBuilder
        func icon(forStatus status: MigrationStatus) -> some View {
            switch status {
            case .excluded:
                EmptyView()

            case .pending:
                ProgressView()

            case .success:
                ThemeImage(.marked)

            case .failure:
                ThemeImage(.failure)
            }
        }
    }
}