//
//  MatchupView.swift
//  FantasyWatch Watch App
//
//  Created by Claude Code
//

import ComposableArchitecture
import SwiftUI

struct MatchupView: View {
    let store: StoreOf<WatchMatchupFeature>

    var body: some View {
        WithPerceptionTracking {
            NavigationStack {
                VStack(spacing: 10) {
                    if let matchup = store.matchup {
                        matchupContent(matchup: matchup)
                    } else {
                        noDataView
                    }
                }
                .navigationTitle("Fantasy Hockey")
                .navigationBarTitleDisplayMode(.inline)
                .toolbar {
                    ToolbarItem(placement: .topBarTrailing) {
                        Button {
                            store.send(.refreshTapped)
                        } label: {
                            if store.isRefreshing {
                                ProgressView()
                            } else {
                                Image(systemName: "arrow.clockwise")
                            }
                        }
                        .disabled(store.isRefreshing)
                    }
                }
                .onAppear {
                    store.send(.onAppear)
                }
            }
        }
    }

    @ViewBuilder
    private func matchupContent(matchup: Matchup) -> some View {
        ScrollView {
            VStack(spacing: 12) {
                // Week indicator
                Text("Week \(matchup.week)")
                    .font(.caption)
                    .foregroundColor(.secondary)

                // Score comparison
                VStack(spacing: 8) {
                    HStack {
                        Text("You")
                            .font(.caption2)
                            .foregroundColor(.secondary)
                        Spacer()
                        Text("\(matchup.userTeam.wins)-\(matchup.userTeam.losses)-\(matchup.userTeam.ties)")
                            .font(.title3)
                            .fontWeight(.bold)
                            .foregroundColor(.blue)
                    }

                    HStack {
                        Text("Opp")
                            .font(.caption2)
                            .foregroundColor(.secondary)
                        Spacer()
                        Text("\(matchup.opponentTeam.wins)-\(matchup.opponentTeam.losses)-\(matchup.opponentTeam.ties)")
                            .font(.title3)
                            .fontWeight(.semibold)
                    }
                }
                .padding(.vertical, 8)

                // Category summary
                HStack(spacing: 8) {
                    categoryBadge(
                        title: "W",
                        count: matchup.categories.filter { $0.comparison == .winning }.count,
                        color: .green
                    )
                    categoryBadge(
                        title: "T",
                        count: matchup.categories.filter { $0.comparison == .tied }.count,
                        color: .orange
                    )
                    categoryBadge(
                        title: "L",
                        count: matchup.categories.filter { $0.comparison == .losing }.count,
                        color: .red
                    )
                }

                // Navigation links
                NavigationLink {
                    CategoryBreakdownView(categories: matchup.categories)
                } label: {
                    Label("Categories", systemImage: "list.bullet")
                        .font(.caption)
                }

                if let roster = store.roster {
                    NavigationLink {
                        RosterStatusView(roster: roster)
                    } label: {
                        Label("Roster", systemImage: "person.3")
                            .font(.caption)
                    }
                }

                if let lastUpdate = store.lastUpdate {
                    Text("Updated \(lastUpdate.formatted(date: .omitted, time: .shortened))")
                        .font(.caption2)
                        .foregroundColor(.secondary)
                        .padding(.top, 4)
                }
            }
            .padding()
        }
    }

    private var noDataView: some View {
        VStack(spacing: 10) {
            Image(systemName: "hockey.puck")
                .font(.title)
                .foregroundColor(.secondary)
            Text("No data")
                .font(.caption)
                .foregroundColor(.secondary)
            Text("Open iPhone app to sync")
                .font(.caption2)
                .foregroundColor(.secondary)
                .multilineTextAlignment(.center)
        }
        .padding()
    }

    private func categoryBadge(title: String, count: Int, color: Color) -> some View {
        VStack(spacing: 2) {
            Text("\(count)")
                .font(.headline)
                .fontWeight(.bold)
                .foregroundColor(color)
            Text(title)
                .font(.caption2)
                .foregroundColor(.secondary)
        }
        .frame(maxWidth: .infinity)
        .padding(.vertical, 6)
        .background(color.opacity(0.15))
        .cornerRadius(6)
    }
}

#Preview {
    MatchupView(
        store: Store(
            initialState: WatchMatchupFeature.State(
                matchup: Matchup(
                    week: 10,
                    status: "midevent",
                    userTeam: TeamScore(teamKey: "test.l.123.t.1", teamName: "My Team", wins: 5, losses: 3, ties: 1),
                    opponentTeam: TeamScore(teamKey: "test.l.123.t.2", teamName: "Opponent", wins: 4, losses: 4, ties: 1),
                    categories: [
                        CategoryScore(statID: "1", name: "G", userValue: "10", opponentValue: "8"),
                        CategoryScore(statID: "2", name: "A", userValue: "15", opponentValue: "18")
                    ]
                ),
                roster: RosterStatus(activeCount: 10, benchedCount: 5, injuredReserve: 2),
                lastUpdate: Date()
            )
        ) {
            WatchMatchupFeature()
        }
    )
}