using GeometryTD.CustomComponent;
using GeometryTD.CustomUtility;
using GeometryTD.Definition;
using UnityEngine;

namespace GeometryTD.UI
{
    public class CombatFinishFormUseCase : IUIUseCase
    {
        private CombatScheduler _combatScheduler;
        private CombatSettlementContext _settlementContext;
        private bool _isSummaryPrepared;

        public CombatFinishFormRawData CreateInitialModel()
        {
            return BuildModel();
        }

        public CombatFinishFormRawData TryRefresh()
        {
            return BuildModel();
        }

        internal void SetSummary(CombatSettlementContext settlementContext)
        {
            _settlementContext = settlementContext;
            _isSummaryPrepared = true;
        }

        public CombatFinishFormUseCase(CombatScheduler combatScheduler)
        {
            this._combatScheduler = combatScheduler;
        }

        public bool TryReturnToMenu()
        {
            return _combatScheduler.OnCombatFinishReturnRequested();
        }

        private CombatFinishFormRawData BuildModel()
        {
            if (!_isSummaryPrepared)
            {
                _settlementContext = null;
            }

            BackpackInventoryData rewardInventory = _settlementContext?.RewardInventory;
            if (rewardInventory == null)
            {
                rewardInventory = InventorySeedUtility.CreateSampleInventory();
            }

            return new CombatFinishFormRawData
            {
                DefeatedEnemyCount = Mathf.Max(0, _settlementContext?.DefeatedEnemyCount ?? 0),
                GainedGold = Mathf.Max(0, _settlementContext?.GainedGold ?? 0),
                RewardInventory = rewardInventory,
                CanReturn = true
            };
        }
    }
}