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//
//  ItemGenresView.swift
//  Jel
//
//  Created by zerocool on 1/7/24.
//

import SwiftUI
import JellyfinKit

struct ItemGenresView: View {
  @EnvironmentObject var jellyfinClient: JellyfinClientController
  
  @StateObject var authState: AuthStateController = AuthStateController.shared
  
  var item: BaseItemDto
  @State var libraryItems: [BaseItemDto]? = []
  
  var body: some View {
    VStack(alignment: .leading) {
      Text("Genres")
        .font(.title2)
        .padding(.horizontal)
      
      ScrollView(.horizontal) {
        HStack {
          ForEach(item.genres ?? [], id: \.self) {genre in
            NavigationLink {
              LibraryDetailView(library: BaseItemDto(name: genre), items: libraryItems) {items in
                var matchingItems: [BaseItemDto] = []
                
                for item in items {
                  if (item.genres ?? []).contains(genre) {
                    matchingItems.append(item)
                  }
                }
                return matchingItems
              }
              .navigationTitle(genre)
            } label: {
              Text(genre)
            }
            .buttonStyle(.bordered)
            .clipShape(.capsule)
          }
        }
        .padding(.horizontal)
      }
      .scrollIndicators(.hidden)
    }
    .onAppear {
      Task {
        let parameters  = Paths.GetItemsParameters(
          userID: authState.userId ?? "",
          isRecursive: true,
          includeItemTypes: [.movie, .series],
          genres: item.genres ?? []
        )
        let request = Paths.getItems(parameters: parameters)
        do {
          let res = try await jellyfinClient.send(request)
          libraryItems = res.value.items ?? []
        } catch {
        }
      }
      
    }
  }
}

//#Preview {
//    ItemGenresView()
//}