import SwiftUI

struct PostDetailView: View {
    let postID: UUID
    @Environment(\.presentationMode) var presentationMode
    @State private var post: Post? = nil

    var body: some View {
        ZStack {
            if let post = post {
                Color.black.ignoresSafeArea()

                VStack {
                    Spacer()

                    VStack(alignment: .leading, spacing: 8) {
                        if let title = post.title {
                            Text(title)
                                .font(.title2)
                                .fontWeight(.bold)
                                .foregroundColor(.white)
                        }

                        if let desc = post.description {
                            Text(desc)
                                .font(.subheadline)
                                .foregroundColor(Color.white.opacity(0.8))
                        }

                        Text("UUID: \(post.id.uuidString)")
                            .font(.caption2)
                            .foregroundColor(Color.white.opacity(0.5))

                        HStack(spacing: 12) {
                            Label("\(post.views)", systemImage: "eye")
                            Label("\(post.likes)", systemImage: "heart")
                            Label("\(post.saves)", systemImage: "bookmark")
                            Label("\(post.commentsCount)", systemImage: "text.bubble")
                        }
                        .font(.footnote)
                        .foregroundColor(Color.white.opacity(0.9))
                    }
                    .padding()
                    .background(Color.black.opacity(0.4))
                    .cornerRadius(12)
                    .padding(.horizontal)
                    .padding(.bottom, 32)
                }

                VStack {
                    HStack {
                        Spacer()
                        Button(action: {
                            presentationMode.wrappedValue.dismiss()
                        }) {
                            Image(systemName: "xmark.circle.fill")
                                .font(.system(size: 30))
                                .foregroundColor(.white)
                                .padding()
                        }
                    }
                    Spacer()
                }
            } else {
                ProgressView("Загрузка поста…")
                    .progressViewStyle(CircularProgressViewStyle(tint: .white))
                    .foregroundColor(.white)
                    .onAppear {
                        PostService.shared.fetchPost(by: postID) { result in
                            self.post = result
                        }
                    }
            }
        }
    }
}