import Foundation

struct EnglishGameSummarizer: GameSummarizer {

    let game: GameStatistics

    private var winText: String {
        game.didWin ? "won" : "lost"
    }

    private var gameText: String {
        "game"
    }

    private var coPlayerNames: String {
        switch game.coPlayers.count {
        case 0:
            return ""
        case 1:
            return " with \(game.coPlayers[0])"
        case 2:
            return " with \(game.coPlayers[0]) and \(game.coPlayers[1])"
        default:
            return ""
        }
    }

    private var costText: String {
        guard game.cost >= 100 else {
            return "\(game.cost) cents"
        }
        return String(format: "%d.%02d €", game.cost / 100, game.cost % 100)
    }

    var text: String {
        "\(game.leader) \(winText) a \(gameText)\(coPlayerNames) collecting \(game.leaderPoints) points. " +
        "The game cost \(costText)."
    }
}