using System;
using System.Collections.Generic;
using System.Linq;

namespace ScreenConnect;

public struct HashableDictionaryWrapper<TKey, TValue>(IDictionary<TKey, TValue>? dictionary) : IEquatable<HashableDictionaryWrapper<TKey, TValue>> where TKey : notnull
{
	public IDictionary<TKey, TValue>? Dictionary { get; } = dictionary;

	public override int GetHashCode()
	{
		return HashCode.Seed.AndDictionary(Dictionary);
	}

	public override bool Equals(object? obj)
	{
		if (obj is HashableDictionaryWrapper<TKey, TValue> other)
		{
			return Equals(other);
		}
		return false;
	}

	public bool Equals(HashableDictionaryWrapper<TKey, TValue> other)
	{
		if (Dictionary != null || other.Dictionary != null)
		{
			if (Dictionary != null && other.Dictionary != null)
			{
				if (Dictionary.Count != 0 || other.Dictionary.Count != 0)
				{
					return Dictionary.Select((KeyValuePair<TKey, TValue> it) => (Key: it.Key, Value: it.Value)).SequenceRangeEquals<(TKey, TValue)>(other.Dictionary.Select<KeyValuePair<TKey, TValue>, (TKey, TValue)>((KeyValuePair<TKey, TValue> it) => (Key: it.Key, Value: it.Value)));
				}
				return true;
			}
			return false;
		}
		return true;
	}
}