//
//  ForEach.swift
//  MacBackend
//
//  Created by david-swift on 31.12.2024.
//

import SwiftUI

/// Align a dynamic number of items horizontally or vertically.
public struct ForEach<Item>: SwiftUIWidget where Item: Identifiable {

    /// The data.
    var data: [Item]
    /// The content.
    var content: (Item) -> Body
    /// Whether the items are aligned horizontally.
    var horizontal: Bool

    /// The wrapped views.
    public var wrappedViews: [String: Meta.AnyView] {
        data.reduce([:]) { partialResult, item in
            var partialResult = partialResult
            partialResult[item.id.hashValue.description] = content(item)
            return partialResult
        }
    }

    /// Initialize a ``ForEach`` view.
    /// - Parameters:
    ///   - data: The data.
    ///   - horizontal: Whether the items are aligned horizontally.
    ///   - content: The content for each data item.
    public init(
        _ data: [Item],
        horizontal: Bool = false,
        @Meta.ViewBuilder content: @escaping (Item) -> Body
    ) {
        self.data = data
        self.content = content
        self.horizontal = horizontal
    }

    /// Get the SwiftUI view.
    /// - Parameter properties: The widget data.
    /// - Returns: The SwiftUI view.
    @SwiftUI.ViewBuilder
    public static func view(properties: Self) -> some SwiftUI.View {
        let forEach = SwiftUI.ForEach(properties.data) { item in
            MacBackendView(item.id.hashValue.description)
        }
        if properties.horizontal {
            SwiftUI.HStack {
                forEach
            }
        } else {
            SwiftUI.VStack {
                forEach
            }
        }
    }

}