import SwiftUI

struct PostDetailView: View {
    let postID: UUID
    @State private var post: Post?

    var body: some View {
        VStack(alignment: .leading, spacing: 0) {
            if let post = post {
                // Шапка поста
                HStack {
                    Image(systemName: "person.crop.circle.fill")
                        .resizable()
                        .frame(width: 36, height: 36)
                        .foregroundColor(.gray)
                    Text(post.authorUsername)
                        .font(.headline)
                    Spacer()
                    Button(action: {}) {
                        Image(systemName: "ellipsis")
                            .foregroundColor(.primary)
                    }
                }
                .padding(.horizontal)
                .padding(.vertical, 8)

                // Изображение поста
                Rectangle()
                    .fill(Color.gray.opacity(0.3))
                    .aspectRatio(1, contentMode: .fit)
                    .frame(maxWidth: .infinity)

                // Панель действий
                HStack(spacing: 16) {
                    Button(action: {}) {
                        Image(systemName: "heart")
                            .font(.system(size: 24))
                    }
                    Button(action: {}) {
                        Image(systemName: "message")
                            .font(.system(size: 24))
                    }
                    Button(action: {}) {
                        Image(systemName: "paperplane")
                            .font(.system(size: 24))
                    }
                    Spacer()
                    Button(action: {}) {
                        Image(systemName: "bookmark")
                            .font(.system(size: 24))
                    }
                }
                .foregroundColor(.primary)
                .padding(.horizontal)
                .padding(.top, 8)

                // Лайки и описание
                VStack(alignment: .leading, spacing: 4) {
                    Text("\(post.likes) likes")
                        .font(.headline)

                    Text(post.description ?? "")
                        .font(.subheadline)
                }
                .padding(.horizontal)
                .padding(.top, 8)

                // Комментарии
                VStack(alignment: .leading, spacing: 4) {
                    Text("View all \(post.commentsCount) comments")
                        .font(.caption)
                        .foregroundColor(.secondary)
                        .padding(.top, 4)
                    
                    Text("2 hours ago")
                        .font(.caption2)
                        .foregroundColor(.secondary)
                        .padding(.top, 4)
                }
                .padding(.horizontal)
                
                Spacer()

            } else {
                ProgressView("Загрузка...")
                    .onAppear {
                        // Симуляция загрузки поста
                        PostService.shared.fetchPost(by: postID) { fetchedPost in
                            self.post = fetchedPost
                        }
                    }
            }
        }
        .navigationBarTitleDisplayMode(.inline)
        .navigationTitle("Post")
    }
}