//
// GameState.swift
// IceGlass
//
// Copyright 2026 Rouslan Zenetl. All Rights Reserved.
//

import Foundation

enum GameState: String, Codable {
    case future   = "FUT"    // More than 30 minutes prior to game start
    case pre      = "PRE"    // Pre-game, <30 minutes until puck drops
    case live     = "LIVE"   // Game has started
    case crit     = "CRIT"   // Last 5 minutes of regulation, OT or SO
    case over     = "OVER"   // Soft final
    case final_   = "FINAL"  // Hard final
    case official = "OFF"    // Official

    var isLive: Bool {
        self == .live || self == .crit
    }

    var isOver: Bool {
        self == .over || self == .final_ || self == .official
    }

    var isFuture: Bool {
        self == .future || self == .pre
    }

    /// Short tag for display in menu rows. Empty for future games — the start
    /// time already implies that state.
    var shortTag: String {
        switch self {
        case .future:   return ""
        case .pre:      return "PRE"
        case .live:     return "LIVE"
        case .crit:     return "CRIT"
        case .over:     return "OVER"
        case .final_:   return "FINAL"
        case .official: return "OFF"
        }
    }

    /// Monotonic ordering along the FUT→PRE→LIVE→CRIT→OVER→FINAL→OFF progression.
    /// Used to detect — and reject — API regressions that briefly downgrade a
    /// finished game back to FUT during the daily focusedDate rollover.
    var progressionRank: Int {
        switch self {
        case .future:   return 0
        case .pre:      return 1
        case .live:     return 2
        case .crit:     return 3
        case .over:     return 4
        case .final_:   return 5
        case .official: return 6
        }
    }

    /// Same ranking, addressable by the raw API string. Unknown states get -1
    /// so any known state replaces them.
    static func progressionRank(of rawState: String) -> Int {
        GameState(rawValue: rawState)?.progressionRank ?? -1
    }

    var pollingInterval: PollingInterval {
        switch self {
        case .future:
            return .gameDay
        case .pre:
            return .preGame
        case .live, .crit:
            return .liveGame
        case .over, .final_:
            return .everyMinute
        case .official:
            return .idle
        }
    }
}