using System.Collections.Generic;

namespace PKHeX.Core
{
    /// <summary>
    /// Information for Accessing individual blocks within a <see cref="SAV7b"/>.
    /// </summary>
    public sealed class SaveBlockAccessor7b : ISaveBlockAccessor<BlockInfo7b>
    {
        private const int boGG = 0xB8800 - 0x200; // nowhere near 1MB (savedata.bin size)

        private static readonly BlockInfo7b[] BlockInfoGG =
        {
            new(boGG, 00, 0x00000, 0x00D90),
            new(boGG, 01, 0x00E00, 0x00200),
            new(boGG, 02, 0x01000, 0x00168),
            new(boGG, 03, 0x01200, 0x01800),
            new(boGG, 04, 0x02A00, 0x020E8),
            new(boGG, 05, 0x04C00, 0x00930),
            new(boGG, 06, 0x05600, 0x00004),
            new(boGG, 07, 0x05800, 0x00130),
            new(boGG, 08, 0x05A00, 0x00012),
            new(boGG, 09, 0x05C00, 0x3F7A0),
            new(boGG, 10, 0x45400, 0x00008),
            new(boGG, 11, 0x45600, 0x00E90),
            new(boGG, 12, 0x46600, 0x010A4),
            new(boGG, 13, 0x47800, 0x000F0),
            new(boGG, 14, 0x47A00, 0x06010),
            new(boGG, 15, 0x4DC00, 0x00200),
            new(boGG, 16, 0x4DE00, 0x00098),
            new(boGG, 17, 0x4E000, 0x00068),
            new(boGG, 18, 0x4E200, 0x69780),
            new(boGG, 19, 0xB7A00, 0x000B0),
            new(boGG, 20, 0xB7C00, 0x00940),
        };

        public IReadOnlyList<BlockInfo7b> BlockInfo => BlockInfoGG;

        public SaveBlockAccessor7b(SAV7b sav)
        {
            Zukan = new Zukan7b(sav, GetBlockOffset(BelugaBlockIndex.Zukan), 0x550);
            Config = new ConfigSave7b(sav, GetBlockOffset(BelugaBlockIndex.ConfigSave));
            Items = new MyItem7b(sav, GetBlockOffset(BelugaBlockIndex.MyItem));
            Storage = new PokeListHeader(sav, GetBlockOffset(BelugaBlockIndex.PokeListHeader));
            Status = new MyStatus7b(sav, GetBlockOffset(BelugaBlockIndex.MyStatus));
            Played = new PlayTime7b(sav, GetBlockOffset(BelugaBlockIndex.PlayTime));
            Misc = new Misc7b(sav, GetBlockOffset(BelugaBlockIndex.Misc));
            EventWork = new EventWork7b(sav, GetBlockOffset(BelugaBlockIndex.EventWork));
            GiftRecords = new WB7Records(sav, GetBlockOffset(BelugaBlockIndex.WB7Record));
            Captured = new CaptureRecords(sav, GetBlockOffset(BelugaBlockIndex.CaptureRecord));
        }

        public readonly MyItem Items;
        public readonly Misc7b Misc;
        public readonly Zukan7b Zukan;
        public readonly MyStatus7b Status;
        public readonly PlayTime7b Played;
        public readonly ConfigSave7b Config;
        public readonly EventWork7b EventWork;
        public readonly PokeListHeader Storage;
        public readonly WB7Records GiftRecords;
        public readonly CaptureRecords Captured;
        public BlockInfo GetBlock(BelugaBlockIndex index) => BlockInfo[(int)index];
        public int GetBlockOffset(BelugaBlockIndex index) => GetBlock(index).Offset;
    }
}