SurveyVista/Web/Areas/Admin/Controllers/RolesController.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Web.ViewModel.AccountVM;

namespace Web.Areas.Admin.Controllers
{

    [Authorize(Roles = "Admin")]
    public class RolesController : Controller
    {
        private readonly RoleManager<IdentityRole> _roleManager;

        public RolesController(RoleManager<IdentityRole> roleManager)
        {
            _roleManager = roleManager;
        }
        public IActionResult Index()
        {
            var roles = _roleManager.Roles.Select(r => new RoleViewModel
            {
                Id = r.Id,
                Name = r.Name,
               
            }).ToList();

            return View(roles);
        }


        public IActionResult Create()
        {
            return View(new RoleViewModel());
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Create(RoleViewModel model)
        {
            if (ModelState.IsValid)
            {
                var role = new IdentityRole
                {
                    Name = model.Name
                };
                // Optionally handle the description if your IdentityRole class supports it
                var result = await _roleManager.CreateAsync(role);
                if (result.Succeeded)
                {
                    TempData["Success"] = "role created successfully";
                    return RedirectToAction("Index");

                }
                foreach (var error in result.Errors)
                {
                    ModelState.AddModelError("", error.Description);
                }
            }
            return View(model);
        }

        public async Task<IActionResult> Edit(string id)
        {
            var role = await _roleManager.FindByIdAsync(id);
            if (role == null)
            {
                return NotFound();
            }

            var model = new RoleViewModel
            {
                Id = role.Id,
                Name = role.Name,
              
            };

            return View(model);
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Edit(RoleViewModel model)
        {
            if (ModelState.IsValid)
            {
                var role = await _roleManager.FindByIdAsync(model.Id);
                if (role == null)
                {
                    return NotFound();
                }

                role.Name = model.Name;
            

                var result = await _roleManager.UpdateAsync(role);
                if (result.Succeeded)
                {
                    TempData["Success"] = "Role updated successfully";
                    return RedirectToAction(nameof(Index));
                }
                foreach (var error in result.Errors)
                {
                    ModelState.AddModelError("", error.Description);
                }
            }

            return View(model);
        }


        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> DeleteMultiple(List<string> selectedRoles)
        {
            if (selectedRoles == null || !selectedRoles.Any())
            {
                TempData["Error"] = "No roles selected for deletion.";
                return RedirectToAction(nameof(Index));
            }

            foreach (var roleId in selectedRoles)
            {
                var role = await _roleManager.FindByIdAsync(roleId);
                if (role != null)
                {
                    await _roleManager.DeleteAsync(role);
                }
            }

            TempData["Success"] = "Selected roles deleted successfully.";
            return RedirectToAction(nameof(Index));
        }

    }
}