BadFileSystem.cs

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namespace BadScript2.IO;
 
public static class BadFileSystem
{
    private static IFileSystem? s_FileSystem = new BadSystemFileSystem();
 
    public static IFileSystem Instance =>
        s_FileSystem ?? throw new InvalidOperationException("FileSystem is not initialized");
 
    public static void SetFileSystem(IFileSystem fileSystem)
    {
        s_FileSystem = fileSystem;
    }
 
    public static void WriteAllText(string path, string contents)
    {
        Instance.WriteAllText(path, contents);
    }
 
    public static void WriteAllText(this IFileSystem fileSystem, string path, string contents)
    {
        using Stream s = fileSystem.OpenWrite(path, BadWriteMode.CreateNew);
        using StreamWriter sw = new StreamWriter(s);
        sw.Write(contents);
    }
 
    public static string ReadAllText(this IFileSystem fileSystem, string path)
    {
        using Stream s = fileSystem.OpenRead(path);
        using StreamReader sw = new StreamReader(s);
 
        return sw.ReadToEnd();
    }
 
    public static string ReadAllText(string path)
    {
        return Instance.ReadAllText(path);
    }
 
 
    public static IEnumerable<string> ReadAllLines(this IFileSystem fileSystem, string path)
    {
        using Stream s = fileSystem.OpenRead(path);
        using StreamReader sw = new StreamReader(s);
 
 
        while (!sw.EndOfStream)
        {
            yield return sw.ReadLine() ?? "";
        }
    }
 
    public static IEnumerable<string> ReadAllLines(string path)
    {
        return Instance.ReadAllLines(path);
    }
 
    public static void WriteAllLines(this IFileSystem fileSystem, string path, IEnumerable<string> lines)
    {
        using Stream s = fileSystem.OpenWrite(path, BadWriteMode.CreateNew);
        using StreamWriter sw = new StreamWriter(s);
 
        foreach (string line in lines)
        {
            sw.WriteLine(line);
        }
    }
 
    public static void WriteAllLines(string path, IEnumerable<string> lines)
    {
        Instance.WriteAllLines(path, lines);
    }
}