using System;
using Vanguard.Api.Contracts;

namespace Vanguard.State
{
    /// <summary>Текущий профиль игрока, общий для мета-экранов.</summary>
    public sealed class PlayerState
    {
        public Guid UserId { get; private set; }
        public string UserName { get; private set; } = string.Empty;
        public bool OnboardingCompleted { get; private set; }
        public string SelectedTrialDeckId { get; private set; }
        public int Gold { get; private set; }
        public int Dust { get; private set; }
        public int Tokens { get; private set; }
        public int Xp { get; private set; }
        public int RankedMmr { get; private set; }
        public int CasualMmr { get; private set; }
        public int Matches { get; private set; }
        public int Wins { get; private set; }

        public event Action Changed;

        public void Apply(AuthResponse response)
        {
            UserId = response.UserId;
            UserName = response.UserName ?? string.Empty;
            OnboardingCompleted = response.OnboardingCompleted;
            NotifyChanged();
        }

        public void Apply(MeResponse me)
        {
            UserId = me.UserId;
            UserName = me.UserName ?? string.Empty;
            OnboardingCompleted = me.OnboardingCompleted;
            SelectedTrialDeckId = me.SelectedTrialDeckId;
            Gold = me.Gold;
            Dust = me.Dust;
            Tokens = me.Tokens;
            Xp = me.Xp;
            RankedMmr = me.RankedMmr;
            CasualMmr = me.CasualMmr;
            Matches = me.Matches;
            Wins = me.Wins;
            NotifyChanged();
        }

        public void Clear()
        {
            UserId = Guid.Empty;
            UserName = string.Empty;
            OnboardingCompleted = false;
            SelectedTrialDeckId = null;
            Gold = 0;
            Dust = 0;
            Tokens = 0;
            Xp = 0;
            RankedMmr = 0;
            CasualMmr = 0;
            Matches = 0;
            Wins = 0;
            NotifyChanged();
        }

        public void MarkOnboarded(string deckId)
        {
            OnboardingCompleted = true;
            SelectedTrialDeckId = deckId;
            NotifyChanged();
        }

        public void ApplyBalances(Balances balances)
        {
            if (balances == null)
                return;

            Gold = balances.Gold;
            Dust = balances.Dust;
            Tokens = balances.Tokens;
            NotifyChanged();
        }

        private void NotifyChanged()
        {
            var handler = Changed;
            if (handler != null)
                handler();
        }
    }
}