using System;
using System.Collections.Generic;
using System.IO;

using Engine.Core.Config;

namespace Engine.Serializers.Yaml;

public class YamlConfiguration : BasicConfiguration
{
    public readonly string FilePath;

    private readonly YamlSerializer yamlSerializer = new();

    public YamlConfiguration(string filePath)
    {
        if (!filePath.EndsWith(".yaml"))
            filePath += ".yaml";

        FilePath = filePath;

        bool isRelativePath = Path.GetFullPath(filePath).CompareTo(filePath) != 0;

        if (isRelativePath)
            FilePath = Path.GetFullPath(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, filePath));

        if (Path.GetDirectoryName(FilePath) is string directoryPath)
            Directory.CreateDirectory(directoryPath);

        if (!File.Exists(FilePath))
            return;

        string yamlFileText = File.ReadAllText(FilePath);
        Dictionary<string, string> valuePairs = yamlSerializer.Deserialize<Dictionary<string, string>>(yamlFileText);

        foreach ((string key, string value) in valuePairs)
            Set(key, value);
    }
}