// src/Webshop.Api/Controllers/Admin/AdmincategoriesController.cs
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Webshop.Application;
using Webshop.Application.DTOs.Categorie;
using Webshop.Application.Services.Admin;

namespace Webshop.Api.Controllers.Admin
{
    [ApiController]
    [Route("api/v1/admin/[controller]")]
    [Authorize(Roles = "Admin")]
    public class AdminCategoriesController : ControllerBase
    {
        private readonly IAdminCategorieService _adminCategorieService;

        public AdminCategoriesController(IAdminCategorieService admincategorieservice)
        {
            _adminCategorieService = admincategorieservice;
        }

        [HttpGet]
        public async Task<ActionResult<IEnumerable<CategorieDto>>> GetAllcategories()
        {
            var categories = await _adminCategorieService.GetAllAsync();
            return Ok(categories);
        }

        [HttpGet("{id}")]
        public async Task<ActionResult<CategorieDto>> GetcategorieById(Guid id)
        {
            var categorie = await _adminCategorieService.GetByIdAsync(id);
            if (categorie == null) return NotFound();
            return Ok(categorie);
        }

        [HttpPost]
        [Consumes("multipart/form-data")]
        public async Task<ActionResult<CategorieDto>> CreateCategorie([FromForm] CreatecategorieDto categorieDto)
        {
            if (!ModelState.IsValid) return BadRequest(ModelState);

            var result = await _adminCategorieService.CreateAsync(categorieDto);

            if (result.Type == ServiceResultType.Success)
            {
                return CreatedAtAction(nameof(GetcategorieById), new { id = result.Value!.Id }, result.Value);
            }
            
            return BadRequest(new { Message = result.ErrorMessage });
        }

        [HttpPut("{id}")]
        [Consumes("multipart/form-data")]
        public async Task<IActionResult> UpdateCategorie(Guid id, [FromForm] UpdatecategorieDto categorieDto)
        {
            if (id != categorieDto.Id) return BadRequest("ID in URL und Body stimmen nicht überein.");
            if (!ModelState.IsValid) return BadRequest(ModelState);

            var result = await _adminCategorieService.UpdateAsync(categorieDto);

            return result.Type switch
            {
                ServiceResultType.Success => NoContent(),
                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
                ServiceResultType.InvalidInput => BadRequest(new { Message = result.ErrorMessage }),
                _ => StatusCode(500, "Ein unerwarteter Fehler ist aufgetreten.")
            };
        }

        [HttpDelete("{id}")]
        public async Task<IActionResult> DeleteCategorie(Guid id)
        {
            var result = await _adminCategorieService.DeleteAsync(id);

            return result.Type switch
            {
                ServiceResultType.Success => NoContent(),
                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
                ServiceResultType.Conflict => Conflict(new { Message = result.ErrorMessage }),
                _ => StatusCode(500, "Ein unerwarteter Fehler ist aufgetreten.")
            };
        }
    }
}