//
//  RuntimesView.swift
//  Xcodes
//
//  Created by Matt Kiazyk on 2023-11-23.
//  Copyright © 2023 Robots and Pencils. All rights reserved.
//

import SwiftUI
import XcodesKit

struct RuntimesView: View {
    @EnvironmentObject var appState: AppState
    let xcode: Xcode
    
    var body: some View {
        VStack(alignment: .leading) {
            Text("Platforms")
                .font(.headline)
                .frame(maxWidth: .infinity, alignment: .leading)
            
            let builds = xcode.sdks?.allBuilds()
            let runtimes = builds?.flatMap { sdkBuild in
                appState.downloadableRuntimes.filter {
                    $0.sdkBuildUpdate == sdkBuild
                }
            }

            ForEach(runtimes ?? [], id: \.simulatorVersion.buildUpdate) { runtime in
                VStack {
                    runtimeRow(runtime: runtime)
                }
               
            }
        }
    }
    
    @ViewBuilder
    func runtimeRow(runtime: DownloadableRuntime) -> some View {
        HStack {
            Text("\(runtime.visibleIdentifier)")
                .font(.subheadline)
            Spacer()
            Text(runtime.downloadFileSizeString)
                .font(.subheadline)
            
            switch runtime.installState {
            case .installed, .notInstalled:
                // it's installed if we have a path
                if let path = appState.runtimeInstallPath(xcode: xcode, runtime: runtime) {
                    Button(action: { appState.reveal(path: path.string) }) {
                        Image(systemName: "arrow.right.circle.fill")
                    }
                    .buttonStyle(PlainButtonStyle())
                    .help("RevealInFinder")
                } else {
                    DownloadRuntimeButton(runtime: runtime)
                }
            case .installing(_):
                CancelRuntimeInstallButton(runtime: runtime)
            }
           
        }
        
        switch runtime.installState {
            
        case .installing(let installationStep):
            RuntimeInstallationStepDetailView(installationStep: installationStep)
                .fixedSize(horizontal: false, vertical: true)
        default:
            EmptyView()
        }
    }
}

//#Preview {
//    RuntimesView()
//}