PadelClub/PadelClub/Views/Round/LoserBracketView.swift

//
//  LoserBracketView.swift
//  PadelClub
//
//  Created by Razmig Sarkissian on 04/04/2024.
//

import SwiftUI

struct LoserBracketView: View {
    @EnvironmentObject var dataStore: DataStore
    let loserRounds: [Round]
    
    @ViewBuilder
    var body: some View {
        if let first = loserRounds.first {
            List {
                ForEach(loserRounds) { loserRound in
                    _loserRoundView(loserRound)
                    let childLoserRounds = loserRound.loserRounds()
                    if childLoserRounds.isEmpty == false {
                        let uniqueChildRound = childLoserRounds.first
                        if childLoserRounds.count == 1, let uniqueChildRound {
                            _loserRoundView(uniqueChildRound)
                        } else if let uniqueChildRound {
                            NavigationLink {
                                LoserBracketView(loserRounds: childLoserRounds)
                            } label: {
                                Text(uniqueChildRound.roundTitle())
                            }
                        }
                    }
                }
            }
            .navigationTitle(first.roundTitle())
        }
    }
    
    private func _loserRoundView(_ loserRound: Round) -> some View {
        Section {
            ForEach(loserRound.playedMatches()) { match in
                MatchRowView(match: match, matchViewStyle: .standardStyle)
            }
        } header: {
            Text(loserRound.roundTitle())
        }
    }
}

#Preview {
    LoserBracketView(loserRounds: [Round.mock()])
        .environmentObject(DataStore.shared)
}