using MediatR;
using Microsoft.EntityFrameworkCore;
using Nashel.Modules.Identity.Application.Queries;
using Nashel.Modules.Identity.Infrastructure.Persistence;

namespace Nashel.Modules.Identity.Infrastructure.QueryHandlers;

public class SearchCompetenciesQueryHandler : IRequestHandler<SearchCompetenciesQuery, List<string>>
{
    private readonly IdentityDbContext _context;

    public SearchCompetenciesQueryHandler(IdentityDbContext context)
    {
        _context = context;
    }

    public async Task<List<string>> Handle(SearchCompetenciesQuery request, CancellationToken cancellationToken)
    {
        if (string.IsNullOrWhiteSpace(request.Query))
            return new List<string>();

        var query = request.Query.ToLower();

        var competencies = await _context.Competencies
            .Where(c => c.Name.ToLower().Contains(query))
            .Select(c => c.Name)
            .Take(10) // Ограничиваем результаты
            .ToListAsync(cancellationToken);

        return competencies;
    }
}