//
// Swiftfin is subject to the terms of the Mozilla Public
// License, v2.0. If a copy of the MPL was not distributed with this
// file, you can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2024 Jellyfin & Jellyfin Contributors
//

import Defaults
import SwiftUI

// TODO: image
// TODO: rename

struct ListTitleSection: View {

    private let title: String
    private let description: String?
    private let onLearnMore: (() -> Void)?

    var body: some View {
        Section {
            VStack(alignment: .center, spacing: 10) {

                Text(title)
                    .font(.title3)
                    .fontWeight(.semibold)

                if let description {
                    Text(description)
                        .multilineTextAlignment(.center)
                }

                if let onLearnMore {
                    Button("Learn More\u{2026}", action: onLearnMore)
                }
            }
            .font(.subheadline)
            .frame(maxWidth: .infinity)
        }
    }
}

extension ListTitleSection {

    init(
        _ title: String,
        description: String? = nil
    ) {
        self.init(
            title: title,
            description: description,
            onLearnMore: nil
        )
    }

    init(
        _ title: String,
        description: String? = nil,
        onLearnMore: @escaping () -> Void
    ) {
        self.init(
            title: title,
            description: description,
            onLearnMore: onLearnMore
        )
    }
}

struct InsetGroupedListHeader: View {

    @Default(.accentColor)
    private var accentColor

    private let title: String
    private let description: String?
    private let onLearnMore: (() -> Void)?

    var body: some View {
        Button {
            onLearnMore?()
        } label: {
            ZStack {
                RoundedRectangle(cornerRadius: 16)
                    .fill(Color.secondarySystemBackground)

                VStack(alignment: .center, spacing: 10) {

                    Text(title)
                        .font(.title3)
                        .fontWeight(.semibold)

                    if let description {
                        Text(description)
                            .multilineTextAlignment(.center)
                    }

                    if onLearnMore != nil {
                        Text("Learn More\u{2026}")
                            .foregroundStyle(accentColor)
                    }
                }
                .font(.subheadline)
                .frame(maxWidth: .infinity)
                .padding(16)
            }
        }
        .foregroundStyle(.primary, .secondary)
    }
}

extension InsetGroupedListHeader {

    init(
        _ title: String,
        description: String? = nil
    ) {
        self.init(
            title: title,
            description: description,
            onLearnMore: nil
        )
    }

    init(
        _ title: String,
        description: String? = nil,
        onLearnMore: @escaping () -> Void
    ) {
        self.init(
            title: title,
            description: description,
            onLearnMore: onLearnMore
        )
    }
}