import SwiftUI

struct FavoriteMenuButtonView: View {
  @EnvironmentObject var settings: SettingsManager
  @EnvironmentObject var manager: BooruManager
  let post: BooruPost
  var disableNewCollection = false
  @State private var isNewCollectionAlertPresented = false
  @State private var newCollectionName = ""
  @State private var itemPendingCollectionAssignment: UUID?
  @State private var isCollectionErrorAlertPresented = false

  var body: some View {
    let isFavorited = settings.isFavorite(postId: post.id, provider: manager.provider)
    let folderHierarchy = FolderHierarchy(folders: settings.folders)

    Menu {
      FolderMenuView(
        folderHierarchy: folderHierarchy,
        onSelectFolder: { folderIdentifier in
          settings.addFavorite(post: post, provider: manager.provider, folder: folderIdentifier)
        },
        onCreateTopLevelUncategorized: { topLevelName in
          let newFolder = SettingsFolder(name: topLevelName)

          settings.folders.append(newFolder)
          settings.addFavorite(post: post, provider: manager.provider, folder: newFolder.id)
        },
        isFolderDisabled: { folderIdentifier in
          isFavoritedInFolder(folderId: folderIdentifier)
        }
      )

      Button(action: {
        isNewCollectionAlertPresented = true
      }) {
        Label("New Collection", systemImage: "plus")
      }
      .disabled(disableNewCollection)
    } label: {
      if isFavorited {
        Label("Favorited", systemImage: "heart.fill")
      } else {
        Label("Favorite", systemImage: "heart")
      }

      // if isFavorited {
      //   Label("Remove from Favorites", systemImage: "heart.fill")
      // } else {
      //   Label("Add to Favorites", systemImage: "heart")
      // }
    } primaryAction: {
      if isFavorited {
        settings.removeFavorite(withPostId: post.id, provider: manager.provider)
      } else {
        settings.addFavorite(post: post, provider: manager.provider)
      }
    }
    .collectionAlerts(
      isNewCollectionAlertPresented: $isNewCollectionAlertPresented,
      newCollectionName: $newCollectionName,
      isCollectionErrorAlertPresented: $isCollectionErrorAlertPresented
    ) { newCollectionName in
      let newFolder = SettingsFolder(name: newCollectionName)

      settings.folders.append(newFolder)

      settings.addFavorite(post: post, provider: manager.provider, folder: newFolder.id)
    }
  }

  private func isFavoritedInFolder(folderId: UUID) -> Bool {
    settings.favorites.contains { favorite in
      favorite.folder == folderId && favorite.postId == post.id
        && favorite.provider == manager.provider
    }
  }
}