using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace CodeWalker.ModManager

{

public class SimpleKvpFile

{

public string FileName;

public string FilePath;

public bool FileExists;

public bool OnlySaveIfFileExists;

public Exception FileError;

public Dictionary<string, string> Items = new Dictionary<string, string>();

public SimpleKvpFile() { }

public SimpleKvpFile(string filePath, bool loadFile = false)

{

FilePath = filePath;

FileName = Path.GetFileName(filePath);

if (loadFile)

{

Load();

}

}

public virtual void Load()

{

Items.Clear();

FileExists = File.Exists(FilePath);

if (FileExists == false)

{

FileError = new Exception($"File not found: {FilePath}");

return;

}

try

{

var lines = File.ReadAllLines(FilePath);

if (lines == null) return;

foreach (var line in lines)

{

var tline = line?.Trim();

if (string.IsNullOrEmpty(tline)) continue;

var spi = tline.IndexOf(' ');

if (spi < 1) continue;

if (spi >= (tline.Length - 1)) continue;

var key = tline.Substring(0, spi).Trim().Replace("<SPACE>", " ");

var val = tline.Substring(spi + 1).Trim().Replace("<NEWLINE>", "\n");

if (string.IsNullOrEmpty(key)) continue;

if (string.IsNullOrEmpty(val)) continue;

Items[key] = val;

}

}

catch (Exception ex)

{

FileError = ex;

FileExists = false;

}

}

public virtual void Save()

{

if ((FileExists == false) && OnlySaveIfFileExists) return;

try

{

var sb = new StringBuilder();

foreach (var kvp in Items)

{

var key = kvp.Key?.Replace(" ", "<SPACE>");

var val = kvp.Value?.Replace("\n", "<NEWLINE>");

sb.AppendLine($"{key} {val}");

}

var str = sb.ToString();

File.WriteAllText(FilePath, str);

}

catch (Exception ex)

{

FileError = ex;

//FileExists = false;

}

}

public string GetItem(string key)

{

if (string.IsNullOrEmpty(key)) return null;

Items.TryGetValue(key, out var item);

return item;

}

public void SetItem(string key, string val)

{

if (string.IsNullOrEmpty(key)) return;

Items[key] = val;

}

}

}