// src/Webshop.Api/Controllers/Admin/AdminSuppliersController.cs
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Webshop.Application.DTOs;
using Webshop.Application.Services.Admin; // Wichtig für IAdminSupplierService
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace Webshop.Api.Controllers.Admin
{
    [ApiController]
    [Route("api/v1/admin/[controller]")]
    [Authorize(Roles = "Admin")]
    public class AdminSuppliersController : ControllerBase
    {
        // Der Controller hängt vom Interface ab, nicht von der konkreten Klasse
        private readonly IAdminSupplierService _adminSupplierService;

        public AdminSuppliersController(IAdminSupplierService adminSupplierService)
        {
            _adminSupplierService = adminSupplierService;
        }

        [HttpGet]
        public async Task<ActionResult<IEnumerable<SupplierDto>>> GetAllSuppliers()
        {
            var suppliers = await _adminSupplierService.GetAllSuppliersAsync();
            return Ok(suppliers);
        }

        [HttpGet("{id:guid}")]
        public async Task<ActionResult<SupplierDto>> GetSupplierById(Guid id)
        {
            var supplier = await _adminSupplierService.GetSupplierByIdAsync(id);
            if (supplier == null) return NotFound();
            return Ok(supplier);
        }

        [HttpPost]
        public async Task<ActionResult<SupplierDto>> CreateSupplier([FromBody] SupplierDto supplierDto)
        {
            if (supplierDto == null) return BadRequest("Supplier data is required.");
            if (!ModelState.IsValid) return BadRequest(ModelState);

            var createdSupplier = await _adminSupplierService.CreateSupplierAsync(supplierDto);
            return CreatedAtAction(nameof(GetSupplierById), new { id = createdSupplier.Id }, createdSupplier);
        }

        [HttpPut("{id:guid}")]
        public async Task<IActionResult> UpdateSupplier(Guid id, [FromBody] SupplierDto supplierDto)
        {
            if (id != supplierDto.Id) return BadRequest("Mismatched ID in route and body.");
            if (!ModelState.IsValid) return BadRequest(ModelState);

            var success = await _adminSupplierService.UpdateSupplierAsync(id, supplierDto);
            if (!success) return NotFound();

            return NoContent(); // Standardantwort für erfolgreiches Update
        }

        [HttpDelete("{id:guid}")]
        public async Task<IActionResult> DeleteSupplier(Guid id)
        {
            var success = await _adminSupplierService.DeleteSupplierAsync(id);
            if (!success) return NotFound();

            return NoContent(); // Standardantwort für erfolgreiches Löschen
        }
    }
}