using System;
using GameFramework.DataTable;
using GeometryTD.DataTable;
using GeometryTD.Definition;

namespace GeometryTD.Factory
{
    public sealed class OutGameDropItemBuilder
    {
        private readonly IDataTable<DRMuzzleComp> _muzzleCompTable;
        private readonly IDataTable<DRBearingComp> _bearingCompTable;
        private readonly IDataTable<DRBaseComp> _baseCompTable;

        public OutGameDropItemBuilder(
            IDataTable<DRMuzzleComp> muzzleCompTable,
            IDataTable<DRBearingComp> bearingCompTable,
            IDataTable<DRBaseComp> baseCompTable)
        {
            _muzzleCompTable = muzzleCompTable;
            _bearingCompTable = bearingCompTable;
            _baseCompTable = baseCompTable;
        }

        public bool TryBuildItem(
            DROutGameDropPool row,
            RarityType rarity,
            InventoryGenerationRandomContext randomContext,
            out TowerCompItemData droppedItem)
        {
            droppedItem = null;
            if (row.ItemId <= 0 || string.IsNullOrWhiteSpace(row.ItemType))
            {
                return false;
            }

            string itemType = row.ItemType.Trim();
            if (itemType.Equals("MuzzleComp", StringComparison.OrdinalIgnoreCase))
            {
                DRMuzzleComp config = _muzzleCompTable.GetDataRow(row.ItemId);
                if (config == null)
                {
                    return false;
                }

                droppedItem = ComponentItemFactory.CreateMuzzle(
                    config,
                    randomContext.CreateStableItemInstanceId(),
                    rarity,
                    randomContext.CreateTagRandomContext(config.Id));
                return true;
            }

            if (itemType.Equals("BearingComp", StringComparison.OrdinalIgnoreCase))
            {
                DRBearingComp config = _bearingCompTable.GetDataRow(row.ItemId);
                if (config == null)
                {
                    return false;
                }

                droppedItem = ComponentItemFactory.CreateBearing(
                    config,
                    randomContext.CreateStableItemInstanceId(),
                    rarity,
                    randomContext.CreateTagRandomContext(config.Id));
                return true;
            }

            if (itemType.Equals("BaseComp", StringComparison.OrdinalIgnoreCase))
            {
                DRBaseComp config = _baseCompTable.GetDataRow(row.ItemId);
                if (config == null)
                {
                    return false;
                }

                droppedItem = ComponentItemFactory.CreateBase(
                    config,
                    randomContext.CreateStableItemInstanceId(),
                    rarity,
                    randomContext.CreateTagRandomContext(config.Id));
                return true;
            }

            return false;
        }
    }
}