using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Renis.Database.Models;
using Renis.Repositories;

namespace renis_backend.Services.Polis
{
    public class PolisService : IPolisService
    {
        private readonly IPolisRepository _repository;
        private readonly ILogger<PolisService> _logger;

        public PolisService(IPolisRepository repository, ILogger<PolisService> logger)
        {
            _repository = repository;
            _logger = logger;
        }

        public async Task<Renis.Database.Models.Polis> GeneratePolis()
        {
            try
            {
                string number = new string(Enumerable.Repeat("0123456789", 9).Select(c => c[new Random().Next(c.Length)]).ToArray());
                await _repository.AddPolis( new Renis.Database.Models.Polis(){
                    Number = $"{number.Substring(0, 3)}-{number.Substring(3, 3)}-{number.Substring(6, 3)}",
                });
                return await _repository.GetPolisByNumber($"{number.Substring(0, 3)}-{number.Substring(3, 3)}-{number.Substring(6, 3)}");
            }
            catch (Exception ex)
            {
                _logger.LogError(ex.Message);
                throw;
            }
        }

        public async Task<Renis.Database.Models.Polis> GetPolis(long id)
        {
            try
            {
                 return await _repository.GetPolisById(id);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex.Message);
                throw;
            }
        }
    }
}