import SwiftUI

struct LadillCard<Content: View>: View {
    @ViewBuilder let content: Content

    var body: some View {
        content
            .padding(16)
            .frame(maxWidth: .infinity, alignment: .leading)
            .background(LadillColors.surface)
            .overlay(RoundedRectangle(cornerRadius: 16).stroke(LadillColors.border, lineWidth: 1))
            .clipShape(RoundedRectangle(cornerRadius: 16))
    }
}

struct StatCard: View {
    let label: String
    let value: String
    var accent = false

    var body: some View {
        VStack(alignment: .leading, spacing: 4) {
            Text(label)
                .font(.ladill(size: 12, weight: .medium))
                .foregroundStyle(accent ? LadillColors.indigoText : LadillColors.muted)
            Text(value)
                .font(.ladill(size: 22, weight: .semibold))
                .foregroundStyle(accent ? LadillColors.money : LadillColors.ink)
        }
        .padding(16)
        .frame(maxWidth: .infinity, alignment: .leading)
        .background(accent ? LadillColors.indigoSoft : LadillColors.surface)
        .overlay(
            RoundedRectangle(cornerRadius: 16)
                .stroke(accent ? LadillColors.indigo.opacity(0.2) : LadillColors.border, lineWidth: 1)
        )
        .clipShape(RoundedRectangle(cornerRadius: 16))
    }
}

struct UserAvatar: View {
    let name: String?
    let photoURL: String?
    var size: CGFloat = 40
    var onTap: (() -> Void)?

    var body: some View {
        let content = ZStack {
            Circle()
                .fill(LadillColors.indigoSoft)
            if let initial = name?.trimmingCharacters(in: .whitespaces).first {
                Text(String(initial).uppercased())
                    .font(.ladill(size: size * 0.38, weight: .semibold))
                    .foregroundStyle(LadillColors.indigoText)
            } else {
                Image(systemName: "person.fill")
                    .font(.system(size: size * 0.4))
                    .foregroundStyle(LadillColors.indigoText)
            }
        }
        .frame(width: size, height: size)

        if let onTap {
            Button(action: onTap) { content }.buttonStyle(.plain)
        } else {
            content
        }
    }
}

struct LoadingView: View {
    var body: some View {
        VStack(spacing: 12) {
            ProgressView().tint(LadillColors.indigo)
            Text("Loading…")
                .font(.ladill(size: 14))
                .foregroundStyle(LadillColors.muted)
        }
        .frame(maxWidth: .infinity)
        .padding(.vertical, 40)
    }
}

struct ErrorView: View {
    let message: String
    let onRetry: () -> Void

    var body: some View {
        VStack(spacing: 12) {
            Text(message)
                .font(.ladill(size: 14))
                .foregroundStyle(LadillColors.muted)
                .multilineTextAlignment(.center)
            Button("Try again", action: onRetry)
                .font(.ladill(size: 14, weight: .semibold))
                .foregroundStyle(LadillColors.indigo)
        }
        .frame(maxWidth: .infinity)
        .padding(.vertical, 40)
        .padding(.horizontal, 20)
    }
}