using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Authorization;
using Knot.Shared.Kernel;
using Knot.Modules.Identity.Application.Users.Auth;
using Knot.Modules.Identity.Application.Users.Register;
using Knot.Modules.Identity.Application.Users.Login;
using Knot.Modules.Identity.Application.Users.GetMe;
using MediatR;

namespace Host.Controllers;

[ApiController]
[Route("api/[controller]")]
public sealed class AuthController : ControllerBase
{
    private readonly ISender _sender;

    public AuthController(ISender sender)
    {
        _sender = sender;
    }

    [HttpPost("register")]
    public async Task<IActionResult> Register([FromBody] RegisterUserCommand command, CancellationToken ct)
    {
        var result = await _sender.Send(command, ct);
        if (result.IsFailure) return BadRequest(new { error = result.Error.Code ?? result.Error.Description });
        return Ok(result.Value);
    }

    [HttpGet("me")]
    [Authorize]
    public async Task<IActionResult> GetMe([FromServices] IUserContext userContext, CancellationToken ct)
    {
        var result = await _sender.Send(new GetMeQuery(userContext.UserId), ct);
        if (result.IsFailure)
        {
            return NotFound();
        }
        return Ok(new { User = result.Value.User });
    }

    [HttpPost("login")]
    public async Task<IActionResult> Login([FromBody] LoginUserCommand command, CancellationToken ct)
    {
        var result = await _sender.Send(command, ct);
        if (result.IsFailure) return Unauthorized(new { error = result.Error.Code ?? result.Error.Description });
        return Ok(result.Value);
    }
}