PkmnLib.NET/PkmnLib.Dataloader/TypeDataLoader.cs

53 lines
1.9 KiB
C#

using System;
using System.IO;
using System.Linq;
using PkmnLib.Static;
using PkmnLib.Static.Libraries;
namespace PkmnLib.Dataloader;
public static class TypeDataLoader
{
private static readonly char[] CommonCsvDelimiters = ['|', ','];
public static TypeLibrary LoadTypeLibrary(Stream stream)
{
var library = new TypeLibrary();
using var reader = new StreamReader(stream);
var header = reader.ReadLine();
if (header == null)
throw new InvalidDataException("Type data is empty.");
var delimiter = CommonCsvDelimiters.FirstOrDefault(header.Contains);
if (delimiter == default)
throw new InvalidDataException("No valid delimiter found in type data.");
var types = header.Split(delimiter, StringSplitOptions.RemoveEmptyEntries)!;
if (!types.Any())
throw new InvalidDataException("No types found in type data.");
foreach (var type in types.Skip(1))
library.RegisterType(type);
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
if (line == null)
break;
var values = line.Split(delimiter, StringSplitOptions.RemoveEmptyEntries)!;
var type = values[0];
if (!library.TryGetTypeIdentifier(type, out var typeId))
throw new InvalidDataException($"Type {type} not found in type library.");
for (var i = 1; i < values.Length; i++)
{
var effectiveness = float.Parse(values[i]);
if (effectiveness < 0.0)
throw new InvalidDataException(
$"Effectiveness for {type} against {types[i]} is invalid: {effectiveness}. Must be greater than or equal to 0.0.");
library.SetEffectiveness(typeId, (TypeIdentifier)i, effectiveness);
}
}
return library;
}
}