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

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

        public AdminReviewsController(IAdminReviewService adminReviewService)
        {
            _adminReviewService = adminReviewService;
        }

        [HttpGet]
        [ProducesResponseType(typeof(IEnumerable<ReviewDto>), StatusCodes.Status200OK)]
        public async Task<IActionResult> GetAllReviews()
        {
            var result = await _adminReviewService.GetAllReviewsAsync();
            // In a simple GetAll, we typically just return the value on success.
            return Ok(result.Value);
        }

        [HttpPost("{id}/approve")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
        public async Task<IActionResult> ApproveReview(Guid id)
        {
            var result = await _adminReviewService.ApproveReviewAsync(id);

            return result.Type switch
            {
                ServiceResultType.Success => NoContent(),
                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
                _ => StatusCode(StatusCodes.Status500InternalServerError, new { Message = result.ErrorMessage ?? "Ein unerwarteter Fehler ist aufgetreten." })
            };
        }

        [HttpDelete("{id}")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
        public async Task<IActionResult> DeleteReview(Guid id)
        {
            var result = await _adminReviewService.DeleteReviewAsync(id);

            return result.Type switch
            {
                ServiceResultType.Success => NoContent(),
                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
                _ => StatusCode(StatusCodes.Status500InternalServerError, new { Message = result.ErrorMessage ?? "Ein unerwarteter Fehler ist aufgetreten." })
            };
        }
    }
}