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FileRequestActions.cs
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FileRequestActions.cs
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using System;
using System.Threading.Tasks;
using AutomaticTypeMapper;
using EOLib.Domain.Login;
using EOLib.Domain.Protocol;
using EOLib.IO;
using EOLib.IO.Map;
using EOLib.IO.Pub;
using EOLib.IO.Repositories;
using EOLib.IO.Services;
namespace EOLib.Net.FileTransfer
{
[AutoMappedType]
public class FileRequestActions : IFileRequestActions
{
private readonly INumberEncoderService _numberEncoderService;
private readonly IFileRequestService _fileRequestService;
private readonly IPubFileSaveService _pubFileSaveService;
private readonly IMapFileSaveService _mapFileSaveService;
private readonly ILoginFileChecksumProvider _loginFileChecksumProvider;
private readonly IPubFileRepository _pubFileRepository;
private readonly IMapFileRepository _mapFileRepository;
private readonly IPlayerInfoProvider _playerInfoProvider;
public FileRequestActions(INumberEncoderService numberEncoderService,
IFileRequestService fileRequestService,
IPubFileSaveService pubFileSaveService,
IMapFileSaveService mapFileSaveService,
ILoginFileChecksumProvider loginFileChecksumProvider,
IPubFileRepository pubFileRepository,
IMapFileRepository mapFileRepository,
IPlayerInfoProvider playerInfoProvider)
{
_numberEncoderService = numberEncoderService;
_fileRequestService = fileRequestService;
_pubFileSaveService = pubFileSaveService;
_mapFileSaveService = mapFileSaveService;
_loginFileChecksumProvider = loginFileChecksumProvider;
_pubFileRepository = pubFileRepository;
_mapFileRepository = mapFileRepository;
_playerInfoProvider = playerInfoProvider;
}
public bool NeedsFileForLogin(InitFileType fileType, short optionalID = 0)
{
var expectedChecksum = _numberEncoderService.DecodeNumber(_loginFileChecksumProvider.MapChecksum);
var expectedLength = _loginFileChecksumProvider.MapLength;
return fileType == InitFileType.Map
? NeedMap(optionalID, expectedChecksum, expectedLength)
: NeedPub(fileType);
}
public bool NeedsMapForWarp(short mapID, byte[] mapRid, int fileSize)
{
var expectedChecksum = _numberEncoderService.DecodeNumber(mapRid);
return NeedMap(mapID, expectedChecksum, fileSize);
}
public async Task GetMapFromServer(short mapID)
{
var mapFile = await _fileRequestService.RequestMapFile(mapID, _playerInfoProvider.PlayerID);
SaveAndCacheMapFile(mapID, mapFile);
}
public async Task GetMapForWarp(short mapID)
{
var mapFile = await _fileRequestService.RequestMapFileForWarp(mapID);
SaveAndCacheMapFile(mapID, mapFile);
}
public async Task GetItemFileFromServer()
{
var itemFile = await _fileRequestService.RequestFile(InitFileType.Item, _playerInfoProvider.PlayerID);
_pubFileSaveService.SaveFile(PubFileNameConstants.PathToEIFFile, itemFile);
_pubFileRepository.EIFFile = (EIFFile)itemFile;
}
public async Task GetNPCFileFromServer()
{
var npcFile = await _fileRequestService.RequestFile(InitFileType.Npc, _playerInfoProvider.PlayerID);
_pubFileSaveService.SaveFile(PubFileNameConstants.PathToENFFile, npcFile);
_pubFileRepository.ENFFile = (ENFFile)npcFile;
}
public async Task GetSpellFileFromServer()
{
var spellFile = await _fileRequestService.RequestFile(InitFileType.Spell, _playerInfoProvider.PlayerID);
_pubFileSaveService.SaveFile(PubFileNameConstants.PathToESFFile, spellFile);
_pubFileRepository.ESFFile = (ESFFile)spellFile;
}
public async Task GetClassFileFromServer()
{
var classFile = await _fileRequestService.RequestFile(InitFileType.Class, _playerInfoProvider.PlayerID);
_pubFileSaveService.SaveFile(PubFileNameConstants.PathToECFFile, classFile);
_pubFileRepository.ECFFile = (ECFFile)classFile;
}
private bool NeedMap(short mapID, int expectedChecksum, int expectedLength)
{
if (!_mapFileRepository.MapFiles.ContainsKey(mapID))
return true; //map with that ID is not in the cache, need to get it from the server
var actualChecksum = _numberEncoderService.DecodeNumber(_mapFileRepository.MapFiles[mapID].Properties.Checksum);
var actualLength = _mapFileRepository.MapFiles[mapID].Properties.FileSize;
return expectedChecksum != actualChecksum || expectedLength != actualLength;
}
private bool NeedPub(InitFileType fileType)
{
switch (fileType)
{
case InitFileType.Item:
return _pubFileRepository.EIFFile == null ||
_loginFileChecksumProvider.EIFChecksum != _pubFileRepository.EIFFile.CheckSum ||
_loginFileChecksumProvider.EIFLength != _pubFileRepository.EIFFile.Length;
case InitFileType.Npc:
return _pubFileRepository.ENFFile == null ||
_loginFileChecksumProvider.ENFChecksum != _pubFileRepository.ENFFile.CheckSum ||
_loginFileChecksumProvider.ENFLength != _pubFileRepository.ENFFile.Length;
case InitFileType.Spell:
return _pubFileRepository.ESFFile == null ||
_loginFileChecksumProvider.ESFChecksum != _pubFileRepository.ESFFile.CheckSum ||
_loginFileChecksumProvider.ESFLength != _pubFileRepository.ESFFile.Length;
case InitFileType.Class:
return _pubFileRepository.ECFFile == null ||
_loginFileChecksumProvider.ECFChecksum != _pubFileRepository.ECFFile.CheckSum ||
_loginFileChecksumProvider.ECFLength != _pubFileRepository.ECFFile.Length;
default:
throw new ArgumentOutOfRangeException(nameof(fileType), fileType, null);
}
}
private void SaveAndCacheMapFile(short mapID, IMapFile mapFile)
{
_mapFileSaveService.SaveFileToDefaultDirectory(mapFile);
if (_mapFileRepository.MapFiles.ContainsKey(mapID))
_mapFileRepository.MapFiles[mapID] = mapFile;
else
_mapFileRepository.MapFiles.Add(mapID, mapFile);
}
}
public interface IFileRequestActions
{
bool NeedsFileForLogin(InitFileType fileType, short optionalID = 0);
bool NeedsMapForWarp(short mapID, byte[] mapRid, int fileSize);
Task GetMapFromServer(short mapID);
Task GetMapForWarp(short mapID);
Task GetItemFileFromServer();
Task GetNPCFileFromServer();
Task GetSpellFileFromServer();
Task GetClassFileFromServer();
}
}