using AutoMapper;
using Diligent.WebAPI.Business.Services;
using Diligent.WebAPI.Data.Entities;
using Diligent.WebAPI.Host.DTOs.Customer;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;

namespace Diligent.WebAPI.Host.Controllers
{
    [ApiVersion("1.0")]
    [ApiController]
    [Route("v{version:apiVersion}/[controller]")]
    public class CustomerController : ControllerBase
    {
        // sifra za svakog od user-a je "Nekasifra123!"
        private readonly UserManager<Customer> _customerManager;
        private readonly RoleManager<Roles> _roleManager;
        private readonly IAuthenticationService _authenticationService;
        private readonly IMapper _mapper;

        public CustomerController(UserManager<Customer> customerManager, RoleManager<Roles> roleManager,IAuthenticationService authenticationService,
            IMapper mapper)
        {
            _customerManager = customerManager;
            _roleManager = roleManager;
            _authenticationService = authenticationService;
            _mapper = mapper;
        }
        [HttpPost("login")]
        public async Task<ActionResult<CustomerReadDTO>> Login(CustomerLoginDTO customerLoginDTO)
        {
            if (!await _authenticationService.ValidateCustomer(customerLoginDTO.Username, customerLoginDTO.Password))
                return BadRequest("Authentication failed.Wrong Username or password");

            Customer customer = await _authenticationService.GetCustomer(customerLoginDTO.Username);
            var customerReadDTO = _mapper.Map<CustomerReadDTO>(customer);
            customerReadDTO.Token = await _authenticationService.GenerateToken();
            customerReadDTO.Roles = (List<string>)await _customerManager.GetRolesAsync(customer);
            return customerReadDTO;
        }

        [HttpPost("addRole")]
        public async Task<ActionResult> CreateRole(string name)
        {
            IdentityResult result = await _roleManager.CreateAsync(new Roles() { Name = name });

            if (!result.Succeeded)
            {
                foreach (IdentityError error in result.Errors)
                    ModelState.AddModelError("", error.Description);

                return BadRequest(ModelState);
            }

            return StatusCode(201);
        }

        [HttpPost("register")]
        public async Task<ActionResult<CustomerReadDTO>> Register(CustomerCreateDTO customerCreateDTO)
        {
            Customer customer = new()
            {
                FirstName = customerCreateDTO.FirstName,
                LastName = customerCreateDTO.LastName,
                Email = customerCreateDTO.Email,
                UserName = customerCreateDTO.Username
            };

            var result = await _customerManager.CreateAsync(customer, customerCreateDTO.Password);
            await _customerManager.AddToRoleAsync(customer, "Customer");

            if (!result.Succeeded)
            {
                foreach (IdentityError error in result.Errors)
                    ModelState.AddModelError("", error.Description);

                return BadRequest(ModelState);
            }
            await _authenticationService.ValidateCustomer(customer.UserName,customerCreateDTO.Password);
            var customerReadDTO = _mapper.Map<CustomerReadDTO>(customer);
            customerReadDTO.Token = await _authenticationService.GenerateToken();
            customerReadDTO.Roles = (List<string>)await _customerManager.GetRolesAsync(customer);

            return customerReadDTO;
        }
    }
}