using Microsoft.AspNetCore.Mvc;
using PlotLine.Services;
using PlotLine.ViewModels;

namespace PlotLine.Controllers;

public sealed class AccountController(IAuthService authService) : Controller
{
    [HttpGet]
    public IActionResult Register(string? returnUrl = null)
    {
        return View(new RegisterViewModel());
    }

    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Register(RegisterViewModel model)
    {
        if (!ModelState.IsValid)
        {
            return View(model);
        }

        var result = await authService.RegisterAsync(model);
        if (!result.Success)
        {
            ModelState.AddModelError(string.Empty, result.ErrorMessage ?? "Registration could not be completed.");
            return View(model);
        }

        TempData["AuthMessage"] = "Your account has been created. You can now log in.";
        return RedirectToAction(nameof(Login));
    }

    [HttpGet]
    public IActionResult Login(string? returnUrl = null)
    {
        return View(new LoginViewModel { ReturnUrl = returnUrl });
    }

    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Login(LoginViewModel model)
    {
        if (!ModelState.IsValid)
        {
            return View(model);
        }

        var result = await authService.LoginAsync(model);
        if (!result.Success)
        {
            ModelState.AddModelError(string.Empty, result.ErrorMessage ?? "Login could not be completed.");
            return View(model);
        }

        if (!string.IsNullOrWhiteSpace(model.ReturnUrl) && Url.IsLocalUrl(model.ReturnUrl))
        {
            return LocalRedirect(model.ReturnUrl);
        }

        return RedirectToAction("Index", "Home");
    }

    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Logout()
    {
        await authService.LogoutAsync();
        return RedirectToAction("Index", "Home");
    }

    [HttpGet]
    public IActionResult AccessDenied()
    {
        return View();
    }
}