ProjectUserManager/UserManagement.API/Controllers/RoleController.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Swashbuckle.AspNetCore.Annotations;
using UserManagement.Application.Dtos.Incomming;
using UserManagement.Application.Interfaces;

namespace UserManagement.API.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    //[Authorize(Roles = "Admin")]
    public class RoleController : ControllerBase
    {
        // CTOR
        private readonly IRoleService _roleService;
        public RoleController(IRoleService roleService)
        {
            _roleService = roleService;
        }

        // CREATE
        [HttpPost]
        [SwaggerOperation(Summary = "Create Role")]
        [ProducesResponseType(StatusCodes.Status201Created)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
        public async Task<IActionResult> CreateRole([FromBody] CreatingRoleDto creatingRoleDto)
        {
            // Validate incomming model
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            try
            {
                // Try to add role asynchronously
                var result = await _roleService.AddRoleAsync(creatingRoleDto);

                // If role is successfully created, return a CreatedAtAction response with the created resource
                if (result is not null)
                {
                    var id = result.Id;
                    var createdResource = new { Id = id };
                    var actionName = nameof(GetRoleById);
                    var routeValue = new { id = createdResource.Id };
                    return CreatedAtAction(actionName, routeValue, createdResource);
                }
                else
                {
                    return BadRequest("geht nix");
                }
            }
            catch (Exception ex)
            {
                return StatusCode(StatusCodes.Status500InternalServerError, ex.Message);
            }
        }

        // READ ALL
        [HttpGet]
        [SwaggerOperation(Summary = "Get all Roles")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        public async Task<IActionResult> GetRoles()
        {
            var roles = await _roleService.GetAllAsync();
            return Ok(roles);
        }

        // READ BY ID
        [HttpGet("id/{id}", Name = "GetRoleById")]
        [SwaggerOperation(Summary = "Get Role by Id")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [ProducesResponseType(StatusCodes.Status404NotFound)]
        public async Task<IActionResult> GetRoleById(int id)
        {
            if (id <= 0)
            {
                return BadRequest("Invalid Id");
            }
            var role = await _roleService.GetByIdAsync(id);
            if (role == null)
            {
                return NotFound();
            }
            return Ok(role);
        }

        // READ BY NAME
        [HttpGet("name/{name}", Name = "GetRoleByName")]
        [SwaggerOperation(Summary = "Get Role by Name")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [ProducesResponseType(StatusCodes.Status404NotFound)]
        public async Task<IActionResult> GetRoleByName(string name)
        {
            if (string.IsNullOrEmpty(name))
            {
                return BadRequest("Name cannot be empty");
            }
            var role = await _roleService.GetByNameAsync(name);
            if (role == null)
            {
                return NotFound();
            }
            return Ok(role);
        }

        // UPDATE
        [HttpPut("id/{id}", Name = "UpdateRole")]
        [SwaggerOperation(Summary = "Update Role")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        public async Task<IActionResult> UpdateRole(int id, UpdatingRoleDto updatingRoleDto)
        {
            if (id <= 0)
            {
                return BadRequest("Invalid Id");
            }

            var updated = await _roleService.UpdateRoleAsync(updatingRoleDto);
            
            if (!updated)
            {
                return BadRequest("Update failed");
            }

            return Ok(updated);
        }

        // DELETE
        [HttpDelete("id/{id}", Name = "DeleteRole")]
        [SwaggerOperation(Summary = "Delete Role")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status404NotFound)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        public async Task<IActionResult> DeleteRole([FromRoute] int id)
        {
            if (id <= 0)
            {
                return BadRequest("Invalid Id");
            }

            var deleted = await _roleService.DeleteRoleAsync(id);

            if (!deleted)
            {
                return BadRequest("Deletion failed");
            }

            return Ok();
        }
    }
}