RhSolutions-Api/RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs

using System.Text.RegularExpressions;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Extensions;

namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;

public abstract class DrinkingWaterHeatingFitting : IProductQueryModifier
{
	protected static readonly Regex _diameter =
		new(@"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)");
	protected static readonly Regex _angle =
		new(@"([\b\D])(?<Angle>45|90)([\b\D]|$)");
	protected static readonly Regex _thread =
		new(@"([\b\D])(?<Thread>1\s+1/4|1\s+1/2|1/2|3/4|2|1)([\b\D]|$)");

	protected virtual string _title { get; } = string.Empty;

	public bool TryQueryModify(IQueryCollection collection, out QueryString queryString)
	{
		queryString = QueryString.Empty;
		string query = collection["query"].ToString();
		if (string.IsNullOrEmpty(query))
		{
			return false;
		}
		string? result = BuildRhSolutionsName(query);
		if (result != null)
		{
			QueryBuilder qb = new()
			{
				{ "query", result }
			};
			queryString = qb.ToQueryString();
			return true;
		}
		return false;
	}

	protected virtual string? BuildRhSolutionsName(string query)
	{
		var match = _diameter.Match(query);
		if (match.Success)
		{
			return $"{_title} {match.Groups["Diameter"]}";
		}
		return null;
	}
}