Files
SabreTools.Serialization/Streams/Listrom.Deserializer.cs
2023-09-15 22:34:47 -04:00

254 lines
9.9 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using SabreTools.Models.Listrom;
using SabreTools.Serialization.Interfaces;
namespace SabreTools.Serialization.Streams
{
public partial class Listrom : IStreamSerializer<MetadataFile>
{
/// <inheritdoc/>
#if NET48
public MetadataFile Deserialize(Stream data)
#else
public MetadataFile? Deserialize(Stream? data)
#endif
{
// If the stream is null
if (data == null)
return default;
// Setup the reader and output
var reader = new StreamReader(data, Encoding.UTF8);
var dat = new MetadataFile();
#if NET48
Set set = null;
#else
Set? set = null;
#endif
var sets = new List<Set>();
var rows = new List<Row>();
var additional = new List<string>();
while (!reader.EndOfStream)
{
// Read the line and don't split yet
#if NET48
string line = reader.ReadLine();
#else
string? line = reader.ReadLine();
#endif
if (string.IsNullOrWhiteSpace(line))
{
// If we have a set to process
if (set != null)
{
set.Row = rows.ToArray();
sets.Add(set);
set = null;
rows.Clear();
}
continue;
}
// Set lines are unique
if (line.StartsWith("ROMs required for driver"))
{
#if NET48
string driver = line.Substring("ROMs required for driver".Length).Trim('"', ' ', '.');
#else
string driver = line["ROMs required for driver".Length..].Trim('"', ' ', '.');
#endif
set = new Set { Driver = driver };
continue;
}
else if (line.StartsWith("No ROMs required for driver"))
{
#if NET48
string driver = line.Substring("No ROMs required for driver".Length).Trim('"', ' ', '.');
#else
string driver = line["No ROMs required for driver".Length..].Trim('"', ' ', '.');
#endif
set = new Set { Driver = driver };
continue;
}
else if (line.StartsWith("ROMs required for device"))
{
#if NET48
string device = line.Substring("ROMs required for device".Length).Trim('"', ' ', '.');
#else
string device = line["ROMs required for device".Length..].Trim('"', ' ', '.');
#endif
set = new Set { Device = device };
continue;
}
else if (line.StartsWith("No ROMs required for device"))
{
#if NET48
string device = line.Substring("No ROMs required for device".Length).Trim('"', ' ', '.');
#else
string device = line["No ROMs required for device".Length..].Trim('"', ' ', '.');
#endif
set = new Set { Device = device };
continue;
}
else if (line.Equals("Name Size Checksum", StringComparison.OrdinalIgnoreCase))
{
// No-op
continue;
}
// Split the line for the name iteratively
#if NET48
string[] lineParts = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
if (lineParts.Length == 1)
lineParts = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
if (lineParts.Length == 1)
lineParts = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
if (lineParts.Length == 1)
lineParts = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
#else
string[] lineParts = line.Split(" ", StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
if (lineParts.Length == 1)
lineParts = line.Split(" ", StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
if (lineParts.Length == 1)
lineParts = line.Split(" ", StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
if (lineParts.Length == 1)
lineParts = line.Split(" ", StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
#endif
// Read the name and set the rest of the line for processing
string name = lineParts[0];
#if NET48
string trimmedLine = line.Substring(name.Length);
#else
string trimmedLine = line[name.Length..];
#endif
if (trimmedLine == null)
continue;
#if NET48
lineParts = trimmedLine.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
#else
lineParts = trimmedLine.Split(' ', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
#endif
// The number of items in the row explains what type of row it is
var row = new Row();
switch (lineParts.Length)
{
// Normal CHD (Name, MD5/SHA1)
case 1:
row.Name = name;
#if NET48
if (line.Contains("MD5("))
row.MD5 = lineParts[0].Substring("MD5".Length).Trim('(', ')');
else
row.SHA1 = lineParts[0].Substring("SHA1".Length).Trim('(', ')');
#else
if (line.Contains("MD5("))
row.MD5 = lineParts[0]["MD5".Length..].Trim('(', ')');
else
row.SHA1 = lineParts[0]["SHA1".Length..].Trim('(', ')');
#endif
break;
// Normal ROM (Name, Size, CRC, MD5/SHA1)
case 3 when line.Contains("CRC"):
row.Name = name;
row.Size = lineParts[0];
#if NET48
row.CRC = lineParts[1].Substring("CRC".Length).Trim('(', ')');
if (line.Contains("MD5("))
row.MD5 = lineParts[2].Substring("MD5".Length).Trim('(', ')');
else
row.SHA1 = lineParts[2].Substring("SHA1".Length).Trim('(', ')');
#else
row.CRC = lineParts[1]["CRC".Length..].Trim('(', ')');
if (line.Contains("MD5("))
row.MD5 = lineParts[2]["MD5".Length..].Trim('(', ')');
else
row.SHA1 = lineParts[2]["SHA1".Length..].Trim('(', ')');
#endif
break;
// Bad CHD (Name, BAD, SHA1, BAD_DUMP)
case 3 when line.Contains("BAD_DUMP"):
row.Name = name;
row.Bad = true;
#if NET48
if (line.Contains("MD5("))
row.MD5 = lineParts[1].Substring("MD5".Length).Trim('(', ')');
else
row.SHA1 = lineParts[1].Substring("SHA1".Length).Trim('(', ')');
#else
if (line.Contains("MD5("))
row.MD5 = lineParts[1]["MD5".Length..].Trim('(', ')');
else
row.SHA1 = lineParts[1]["SHA1".Length..].Trim('(', ')');
#endif
break;
// Nodump CHD (Name, NO GOOD DUMP KNOWN)
case 4 when line.Contains("NO GOOD DUMP KNOWN"):
row.Name = name;
row.NoGoodDumpKnown = true;
break;
// Bad ROM (Name, Size, BAD, CRC, MD5/SHA1, BAD_DUMP)
case 5 when line.Contains("BAD_DUMP"):
row.Name = name;
row.Size = lineParts[0];
row.Bad = true;
#if NET48
row.CRC = lineParts[2].Substring("CRC".Length).Trim('(', ')');
if (line.Contains("MD5("))
row.MD5 = lineParts[3].Substring("MD5".Length).Trim('(', ')');
else
row.SHA1 = lineParts[3].Substring("SHA1".Length).Trim('(', ')');
#else
row.CRC = lineParts[2]["CRC".Length..].Trim('(', ')');
if (line.Contains("MD5("))
row.MD5 = lineParts[3]["MD5".Length..].Trim('(', ')');
else
row.SHA1 = lineParts[3]["SHA1".Length..].Trim('(', ')');
#endif
break;
// Nodump ROM (Name, Size, NO GOOD DUMP KNOWN)
case 5 when line.Contains("NO GOOD DUMP KNOWN"):
row.Name = name;
row.Size = lineParts[0];
row.NoGoodDumpKnown = true;
break;
default:
row = null;
additional.Add(line);
break;
}
if (row != null)
rows.Add(row);
}
// If we have a set to process
if (set != null)
{
set.Row = rows.ToArray();
sets.Add(set);
set = null;
rows.Clear();
}
// Add extra pieces and return
dat.Set = sets.ToArray();
dat.ADDITIONAL_ELEMENTS = additional.ToArray();
return dat;
}
}
}