//
//  TournamentCellView.swift
//  PadelClub
//
//  Created by Razmig Sarkissian on 29/02/2024.
//

import SwiftUI

struct TournamentCellView: View {
    @EnvironmentObject var dataStore: DataStore
    @Environment(NavigationViewModel.self) private var navigation

    let tournament: FederalTournamentHolder
    let color: Color = .black
    var displayStyle: DisplayStyle = .wide

    var event: Event? {
        guard let federalTournament = tournament as? FederalTournament else { return nil }
        return dataStore.events.first(where: { $0.tenupId == federalTournament.id.string })
    }

    var body: some View {
        ForEach(tournament.tournaments, id: \.id) { build in
            _buildView(build, existingTournament: event?.existingBuild(build))
        }
    }
    
    private func _buildView(_ build: any TournamentBuildHolder, existingTournament: Tournament?) -> some View {
        HStack {
            DateBoxView(date: tournament.startDate, displayStyle: .short)
            Rectangle()
                .fill(color)
                .frame(width: 2)
            VStack(alignment: .leading, spacing: -2) {
                if let tournament = tournament as? Tournament {
                    Text(tournament.locationLabel(displayStyle))
                        .font(.caption2)
                } else {
                    Text(tournament.clubLabel())
                        .font(.caption2)
                }
                HStack(alignment: .bottom) {
                    Text(build.level.localizedLabel())
                    if displayStyle == .wide {
                        VStack(alignment: .leading, spacing: 0) {
                            Text(build.category.localizedLabel())
                            Text(build.age.localizedLabel())
                        }
                        .font(.caption2)
                    }
                    Spacer()
                    if let tournament = tournament as? Tournament, displayStyle == .wide {
                        Text(tournament.sortedTeams().count.formatted())
                    } else if let federalTournament = tournament as? FederalTournament {
                        Button {
                            if let existingTournament {
                                navigation.agendaDestination = .activity
                                navigation.tournament = existingTournament
                            } else {
                                let event = federalTournament.getEvent()
                                let newTournament = Tournament.newEmptyInstance()
                                newTournament.event = event.id
                                newTournament.tournamentLevel = build.level
                                newTournament.tournamentCategory = build.category
                                newTournament.federalTournamentAge = build.age
                                newTournament.dayDuration = federalTournament.dayDuration
                                newTournament.startDate = federalTournament.startDate
                                try? dataStore.tournaments.addOrUpdate(instance: newTournament)
                            }
                        } label: {
                            Image(systemName: existingTournament != nil ? "checkmark.circle.fill" : "square.and.arrow.down")
                                .resizable()
                                .scaledToFit()
                                .frame(height: 28)
                                .tint(existingTournament != nil ? Color.green : nil)
                        }
                    }
                }
                .font(displayStyle == .wide ? .title : .title3)
                
                if displayStyle == .wide {
                    HStack {
                        Text(tournament.durationLabel())
                        Spacer()
                        if let tournament = tournament as? Tournament {
                            Text("équipes")
                        }
                    }
                    Text(tournament.subtitleLabel())
                } else {
                    Text(build.category.localizedLabel())
                    Text(build.age.localizedLabel())
                }
            }
        }
        .font(.caption2)
    }
}