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

public static class EventGatherCoreSystem
{
    public readonly static int Cost = 1;
    public static int PickRandomRewardIdx()
    {
        var stage = GContext.container.Resolve<EventGatherCoreData>().StageData;
        var ctx = EventGatherCoreAct.Ctx;
        var rewardIds = stage.RewardIdList;
        var weightList = rewardIds
            .Select((id, idx) =>
                !stage.IsRewardClaimed(idx) &&
                !IsDoomed(id) &&
                ctx.TryGetRewardWeight(id, out var weight) ? weight : 0)
            .ToList();
        var idx = FtMathUtils.GetRandomIdxFromWeightList(weightList);
        return idx;
    }

    private static bool IsDoomed(int rewardId)
    {
        var stage = GContext.container.Resolve<EventGatherCoreData>().StageData;
        var ctx = EventGatherCoreAct.Ctx;
        return stage.IsEarlyTry(ctx) && stage.IsCloseToFinish(ctx) && ctx.IsCoreItem(rewardId);
    }

    public static void GrantRewards(int rewardId)
    {
        var rewardItem = EventGatherCoreAct.Ctx.GetReward(rewardId, out _);
        if (rewardItem == null)
            return;
        if (!EventGatherCoreAct.Ctx.IsCoreItem(rewardId))
            GContext.Publish(new DeferredRewardStashService.EventStashItem { Item = rewardItem });
    }

    public static void GrantTaskReward(int taskDropId, List<int> remainingRewardIds)
    {
        GContext.Publish(new DeferredRewardStashService.EventStashDrop { DropId =  taskDropId});
        if (remainingRewardIds != null)
            foreach (var rewardId in remainingRewardIds)
                GrantRewards(rewardId);
    }

    public static bool Draw(int triggerIdx, out int rewardIdx, out int rewardId)
    {
        int evRoundCount, evStageCount, evPlayCount, evRewardId, evRewardCount, evEndOfStage, evCombineId;
        rewardId = 0;
        rewardIdx = 0;
        var data = GContext.container.Resolve<EventGatherCoreData>();
        if (data.TicketCount <= 0)
        {
            Debug.Log("[EventGatherCore]Insufficient tickets");
            return false;
        }
        data.AddTicket(-Cost);
        rewardIdx = PickRandomRewardIdx();
        data.StageData.SetTriggerUsed(triggerIdx);
        data.StageData.SetRewardClaimed(rewardIdx);
        var ctx = EventGatherCoreAct.Ctx;
        data.Save();
        evRoundCount = data.StageCount / ctx.GetTotalStageCount() + 1;
        evStageCount = data.StageCount % ctx.GetTotalStageCount() + 1;
        evPlayCount = data.StageData.PlayCount;
        rewardId = data.StageData.RewardIdList[rewardIdx];
        var rewardItem = EventGatherCoreAct.Ctx.GetReward(rewardId, out _);
        GrantRewards(rewardId);
        evRewardId = rewardItem.id;
        evRewardCount = rewardItem.count;
        evEndOfStage = data.StageData.IsStageCleared(ctx)? 1 : 0;
        evCombineId = evRoundCount * 10000 + evStageCount * 100 + evPlayCount;
        // Debug.Log($"<color=red>[EventGatherCore] -------------------Event Tracking---------------------</color>");
        // Debug.Log($"[EventGatherCore] round: {evRoundCount}");
        // Debug.Log($"[EventGatherCore] stage: {evStageCount}");
        // Debug.Log($"[EventGatherCore] count: {evPlayCount}");
        // Debug.Log($"[EventGatherCore] item_id: {evRewardId}");
        // Debug.Log($"[EventGatherCore] item_count: {evRewardCount}");
        // Debug.Log($"[EventGatherCore] is_done: {evEndOfStage}");
        // Debug.Log($"[EventGatherCore] combine_id: {evCombineId}");
        // Debug.Log($"[EventGatherCore] -------------------End of Event Tracking---------------------");
#if AGG
        using (var e = GEvent.GameEvent("event_gathercore"))
        {
            e.AddContent("round", evRoundCount)
                .AddContent("stage", evStageCount)
                .AddContent("count", evPlayCount)
                .AddContent("item_id", evRewardId)
                .AddContent("item_count", evRewardCount)
                .AddContent("is_done", evEndOfStage)
                .AddContent("combine_id", evCombineId);
        }
#endif
        return true;
    }
}