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https://github.com/claunia/SabreTools.git
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Create and use DosCenter serializer
This commit is contained in:
Matt Nadareski
234
SabreTools.Serialization/DosCenter.Deserializer.cs
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234
SabreTools.Serialization/DosCenter.Deserializer.cs
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using SabreTools.IO.Readers;
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using SabreTools.Models.DosCenter;
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namespace SabreTools.Serialization
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{
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/// <summary>
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/// Deserializer for DosCenter metadata files
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/// </summary>
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public partial class DosCenter
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{
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/// <summary>
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/// Deserializes a DosCenter metadata file to the defined type
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/// </summary>
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/// <param name="path">Path to the file to deserialize</param>
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/// <returns>Deserialized data on success, null on failure</returns>
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public static MetadataFile? Deserialize(string path)
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{
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try
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{
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using var stream = PathProcessor.OpenStream(path);
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return Deserialize(stream);
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}
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catch
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{
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// TODO: Handle logging the exception
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return default;
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}
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}
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/// <summary>
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/// Deserializes a DosCenter metadata file in a stream to the defined type
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/// </summary>
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/// <param name="stream">Stream to deserialize</param>
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/// <returns>Deserialized data on success, null on failure</returns>
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public static MetadataFile? Deserialize(Stream? stream)
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{
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try
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{
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// If the stream is null
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if (stream == null)
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return default;
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// Setup the reader and output
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var reader = new ClrMameProReader(stream, Encoding.UTF8) { DosCenter = true };
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var dat = new MetadataFile();
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// Loop through and parse out the values
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string lastTopLevel = reader.TopLevel;
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Game? game = null;
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var games = new List<Game?>();
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var files = new List<Models.DosCenter.File?>();
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var additional = new List<string>();
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var headerAdditional = new List<string>();
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var gameAdditional = new List<string>();
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var fileAdditional = new List<string>();
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while (!reader.EndOfStream)
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{
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// If we have no next line
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if (!reader.ReadNextLine())
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break;
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// Ignore certain row types
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switch (reader.RowType)
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{
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case CmpRowType.None:
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case CmpRowType.Comment:
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continue;
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case CmpRowType.EndTopLevel:
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switch (lastTopLevel)
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{
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case "doscenter":
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dat.DosCenter.ADDITIONAL_ELEMENTS = headerAdditional.ToArray();
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headerAdditional.Clear();
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break;
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case "game":
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game.File = files.ToArray();
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game.ADDITIONAL_ELEMENTS = gameAdditional.ToArray();
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games.Add(game);
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game = null;
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files.Clear();
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gameAdditional.Clear();
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break;
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default:
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// No-op
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break;
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}
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continue;
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}
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// If we're at the root
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if (reader.RowType == CmpRowType.TopLevel)
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{
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lastTopLevel = reader.TopLevel;
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switch (reader.TopLevel)
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{
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case "doscenter":
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dat.DosCenter = new Models.DosCenter.DosCenter();
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break;
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case "game":
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game = new Game();
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break;
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default:
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additional.Add(reader.CurrentLine);
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break;
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}
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}
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// If we're in the doscenter block
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else if (reader.TopLevel == "doscenter" && reader.RowType == CmpRowType.Standalone)
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{
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// Create the block if we haven't already
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dat.DosCenter ??= new Models.DosCenter.DosCenter();
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switch (reader.Standalone?.Key?.ToLowerInvariant())
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{
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case "name:":
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dat.DosCenter.Name = reader.Standalone?.Value;
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break;
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case "description:":
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dat.DosCenter.Description = reader.Standalone?.Value;
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break;
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case "version:":
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dat.DosCenter.Version = reader.Standalone?.Value;
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break;
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case "date:":
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dat.DosCenter.Date = reader.Standalone?.Value;
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break;
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case "author:":
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dat.DosCenter.Author = reader.Standalone?.Value;
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break;
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case "homepage:":
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dat.DosCenter.Homepage = reader.Standalone?.Value;
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break;
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case "comment:":
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dat.DosCenter.Comment = reader.Standalone?.Value;
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break;
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default:
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headerAdditional.Add(item: reader.CurrentLine);
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break;
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}
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}
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// If we're in a game block
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else if (reader.TopLevel == "game" && reader.RowType == CmpRowType.Standalone)
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{
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// Create the block if we haven't already
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game ??= new Game();
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switch (reader.Standalone?.Key?.ToLowerInvariant())
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{
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case "name":
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game.Name = reader.Standalone?.Value;
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break;
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default:
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gameAdditional.Add(item: reader.CurrentLine);
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break;
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}
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}
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// If we're in a file block
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else if (reader.TopLevel == "game" && reader.RowType == CmpRowType.Internal)
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{
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// If we have an unknown type, log it
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if (reader.InternalName != "file")
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{
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gameAdditional.Add(reader.CurrentLine);
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continue;
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}
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// Create the file and add to the list
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var file = CreateFile(reader);
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files.Add(file);
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}
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else
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{
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additional.Add(item: reader.CurrentLine);
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}
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}
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// Add extra pieces and return
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dat.Game = games.ToArray();
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dat.ADDITIONAL_ELEMENTS = additional.ToArray();
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return dat;
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}
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catch
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{
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// TODO: Handle logging the exception
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return default;
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}
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}
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/// <summary>
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/// Create a File object from the current reader context
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/// </summary>
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/// <param name="reader">ClrMameProReader representing the metadata file</param>
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/// <returns>File object created from the reader context</returns>
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private static Models.DosCenter.File CreateFile(ClrMameProReader reader)
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{
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var itemAdditional = new List<string>();
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var file = new Models.DosCenter.File();
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foreach (var kvp in reader.Internal)
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{
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switch (kvp.Key?.ToLowerInvariant())
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{
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case "name":
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file.Name = kvp.Value;
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break;
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case "size":
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file.Size = kvp.Value;
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break;
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case "crc":
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file.CRC = kvp.Value;
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break;
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case "date":
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file.Date = kvp.Value;
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break;
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default:
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itemAdditional.Add(item: reader.CurrentLine);
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break;
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}
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}
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file.ADDITIONAL_ELEMENTS = itemAdditional.ToArray();
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return file;
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}
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}
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}
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