using UnityEngine;
using GameCore;
using asap.core;
using System.Linq;

public class EventLuckMagicSystem
{
    public const int BoardSize = 6;
    private readonly PlayerItemData _playerItemData;

    public EventLuckMagicSystem()
    {
        _playerItemData = GContext.container.Resolve<PlayerItemData>();
    }

    /// <summary>
    /// Draw a random block from the ring.
    /// </summary>
    /// <param name="idx">The index of chosen block. Will be -1 if this draw fails.</param>
    /// <param name="reward">The reward to be shown. Will be null if this draw fails.</param>
    /// <returns>True if successfully get a index and reward.</returns>
    public bool Draw(EventLuckMagicRing ring, out EventLuckMagicSpinCtx spinCtx, out int targetBlockTableId)
    {
        var _model = GContext.container.Resolve<EventLuckMagicModel>();
        spinCtx = new EventLuckMagicSpinCtx();
        spinCtx.Ring = ring;
        spinCtx.Index = -1;
        spinCtx.Reward = null;
        targetBlockTableId = -1;
        if (ring.IsDepleted)
        {
            Debug.Log($"[EventLuckMagic] This ring is Depleted.");
            if (_model.IsGameDepleted)
            {
                _model.AddRoundCount();
                _model.Reset();
            }
            return false;
        }
        var dic = ring.Blocks.Select((block, index) => (block, index))
            .Where(x => x.block.IsTaken == false)
            .ToDictionary(x => x.index, x => x.block.Weight);
        var keys = dic.Keys.ToArray();
        var weights = dic.Values.ToArray();
        spinCtx.Index = keys[FtMathUtils.GetRandomIdxFromWeightList(weights)];
        spinCtx.Reward = ring.Blocks[spinCtx.Index].Reward;
        targetBlockTableId = ring.Blocks[spinCtx.Index].TableId;
        spinCtx.RoundCount = _model.RoundCount;
        return true;
    }

    public void GrantReward(EventLuckMagicSpinCtx spinCtx)
    {
        if (spinCtx == null || spinCtx.Reward == null)
            return;
        var _model = GContext.container.Resolve<EventLuckMagicModel>();
        // Debug.Log($"[EventLuckMagic] Grant Reward {reward.id} * {reward.count}.");
        var reward = spinCtx.Reward;
        var sourceRing = spinCtx.Ring;
        var idx = spinCtx.Index;
        if (EventLuckMagicAct.TableContext.IsRewardRoadSign(reward.id, out var expireDuration, out int dropId, out _)
            && sourceRing.RingType != EEventLuckMagicRingType.InnerRing)
        {
            _model.LinkRings();
            _model.HigherRingData.PointTo(sourceRing.HigherRing);
            _model.HigherRingData.Activate(expireDuration);
            // _playerItemData.AddItemByDrop(dropId);
            GContext.Publish(new DeferredRewardStashService.EventStashDrop {DropId = dropId});
        }
        else if (EventLuckMagicAct.TableContext.IsRewardProgressItem(reward.id, spinCtx.RoundCount, out dropId))
        {
            sourceRing.Blocks[idx].Take();
            _model.LinkRings();
            _model.HigherRingData.PointTo(sourceRing.HigherRing);
            // _playerItemData.AddItemByDrop(dropId, stash: true);
            _model.UpdateTaskProgress(reward.id);
            if (_model.IsTaskCompleted(reward.id))
            {
                // var progressReward = _playerItemData.AddItemByDrop(dropId)[0];
                GContext.Publish(new DeferredRewardStashService.EventStashDrop {DropId = dropId});
            }
        }
        else
        {
            sourceRing.Blocks[idx].Take();
            _model.LinkRings();
            _model.HigherRingData.PointTo(sourceRing.HigherRing);
            // _playerItemData.AddItem(reward);
            GContext.Publish(new DeferredRewardStashService.EventStashItem { Item = reward });
        }
    }
}

public class EventLuckMagicDrawEvent
{
    public readonly EEventLuckMagicRingType Ring;
    public readonly int Index;
    public readonly ItemData Reward;
    public bool DoesReset = false;
    public EventLuckMagicDrawEvent(int index, ItemData reward, EEventLuckMagicRingType ring, bool reset = false)
    {
        Index = index;
        Reward = reward;
        Ring = ring;
        DoesReset = reset;
    }
}