import SwiftUI

struct ReadinessCardView: View {
    let readiness: ReadinessResponse
    @State private var animatedScore: CGFloat = 0
    @State private var appeared = false

    var statusColor: Color {
        if readiness.score >= 80 { return Color(hex: "00d4aa") }
        if readiness.score >= 60 { return Color(hex: "ffa502") }
        return Color(hex: "ff4757")
    }

    var statusText: String {
        if readiness.score >= 80 { return "Отличная готовность 💪" }
        if readiness.score >= 60 { return "Умеренная активность 🚶" }
        return "День отдыха 😴"
    }

    var body: some View {
        VStack(spacing: 20) {
            // Score Ring
            ZStack {
                // Background ring
                Circle()
                    .stroke(Color.white.opacity(0.08), lineWidth: 14)
                    .frame(width: 150, height: 150)

                // Animated ring
                Circle()
                    .trim(from: 0, to: animatedScore / 100)
                    .stroke(
                        AngularGradient(
                            colors: [statusColor.opacity(0.5), statusColor, statusColor.opacity(0.8)],
                            center: .center,
                            startAngle: .degrees(0),
                            endAngle: .degrees(360)
                        ),
                        style: StrokeStyle(lineWidth: 14, lineCap: .round)
                    )
                    .frame(width: 150, height: 150)
                    .rotationEffect(.degrees(-90))

                // Score text
                VStack(spacing: 2) {
                    Text("\(readiness.score)")
                        .font(.system(size: 48, weight: .bold, design: .rounded))
                        .foregroundColor(statusColor)
                    Text("из 100")
                        .font(.caption2)
                        .foregroundColor(Color(hex: "8888aa"))
                }
            }

            // Status
            VStack(spacing: 6) {
                Text(statusText)
                    .font(.title3.weight(.semibold))
                    .foregroundColor(.white)

                Text(readiness.recommendation)
                    .font(.subheadline)
                    .foregroundColor(Color(hex: "8888aa"))
                    .multilineTextAlignment(.center)
                    .lineLimit(3)
                    .padding(.horizontal, 8)
            }

            // Factor bars
            if let f = readiness.factors {
                VStack(spacing: 10) {
                    Divider().background(Color.white.opacity(0.1))

                    FactorRow(name: "Сон", icon: "moon.fill", score: f.sleep.score, value: f.sleep.value, color: Color(hex: "7c3aed"))
                    FactorRow(name: "HRV", icon: "waveform.path.ecg", score: f.hrv.score, value: f.hrv.value, color: Color(hex: "00d4aa"))
                    FactorRow(name: "Пульс", icon: "heart.fill", score: f.rhr.score, value: f.rhr.value, color: Color(hex: "ff4757"))
                    FactorRow(name: "Активность", icon: "flame.fill", score: f.activity.score, value: f.activity.value, color: Color(hex: "ffa502"))
                }
            }
        }
        .padding(24)
        .background(
            RoundedRectangle(cornerRadius: 20)
                .fill(.ultraThinMaterial)
                .overlay(
                    RoundedRectangle(cornerRadius: 20)
                        .fill(Color(hex: "12122a").opacity(0.7))
                )
        )
        .shadow(color: .black.opacity(0.2), radius: 10, y: 5)
        .padding(.horizontal)
        .onAppear {
            withAnimation(.easeOut(duration: 1.2)) {
                animatedScore = CGFloat(readiness.score)
            }
        }
        .opacity(appeared ? 1 : 0)
        .offset(y: appeared ? 0 : 20)
        .onAppear {
            withAnimation(.easeOut(duration: 0.5).delay(0.1)) {
                appeared = true
            }
        }
    }
}

// MARK: - Factor Row

struct FactorRow: View {
    let name: String
    let icon: String
    let score: Int
    let value: String
    let color: Color

    var body: some View {
        HStack(spacing: 10) {
            Image(systemName: icon)
                .font(.caption)
                .foregroundColor(color)
                .frame(width: 20)

            Text(name)
                .font(.caption.weight(.medium))
                .foregroundColor(Color(hex: "8888aa"))
                .frame(width: 75, alignment: .leading)

            GeometryReader { geo in
                ZStack(alignment: .leading) {
                    RoundedRectangle(cornerRadius: 3)
                        .fill(Color.white.opacity(0.08))

                    RoundedRectangle(cornerRadius: 3)
                        .fill(
                            LinearGradient(
                                colors: [color.opacity(0.7), color],
                                startPoint: .leading,
                                endPoint: .trailing
                            )
                        )
                        .frame(width: geo.size.width * CGFloat(score) / 100)
                }
            }
            .frame(height: 6)

            Text(value)
                .font(.caption)
                .foregroundColor(.white.opacity(0.7))
                .frame(width: 55, alignment: .trailing)
        }
    }
}