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.Customers;
using Webshop.Application.Services.Admin.Interfaces;

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

        public AdminAddressesController(IAdminAddressService adminAddressService)
        {
            _adminAddressService = adminAddressService;
        }

        [HttpGet]
        [ProducesResponseType(typeof(IEnumerable<AddressDto>), StatusCodes.Status200OK)]
        public async Task<IActionResult> GetAllAddresses()
        {
            var result = await _adminAddressService.GetAllAddressesAsync();
            return Ok(result.Value);
        }

        [HttpGet("{id}")]
        [ProducesResponseType(typeof(AddressDto), StatusCodes.Status200OK)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
        public async Task<IActionResult> GetAddressById(Guid id)
        {
            var result = await _adminAddressService.GetAddressByIdAsync(id);
            return result.Type switch
            {
                ServiceResultType.Success => Ok(result.Value),
                _ => NotFound(new { Message = result.ErrorMessage })
            };
        }

        [HttpPost("customer/{customerId}")]
        [ProducesResponseType(typeof(AddressDto), StatusCodes.Status201Created)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status400BadRequest)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
        public async Task<IActionResult> CreateAddressForCustomer(Guid customerId, [FromBody] CreateAddressDto addressDto)
        {
            if (!ModelState.IsValid) return BadRequest(ModelState);

            var result = await _adminAddressService.CreateAddressForCustomerAsync(addressDto, customerId);

            return result.Type switch
            {
                ServiceResultType.Success => CreatedAtAction(nameof(GetAddressById), new { id = result.Value!.Id }, result.Value),
                ServiceResultType.NotFound => NotFound(new { Message = result.ErrorMessage }),
                _ => BadRequest(new { Message = result.ErrorMessage })
            };
        }

        [HttpPut("{id}")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status400BadRequest)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
        public async Task<IActionResult> UpdateAddress(Guid id, [FromBody] UpdateAddressDto addressDto)
        {
            if (id != addressDto.Id) return BadRequest(new { Message = "ID in URL und Body stimmen nicht überein." });
            if (!ModelState.IsValid) return BadRequest(ModelState);

            var result = await _adminAddressService.UpdateAddressAsync(addressDto);

            return result.Type switch
            {
                ServiceResultType.Success => NoContent(),
                _ => NotFound(new { Message = result.ErrorMessage })
            };
        }

        [HttpDelete("{id}")]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
        public async Task<IActionResult> DeleteAddress(Guid id)
        {
            var result = await _adminAddressService.DeleteAddressAsync(id);
            return result.Type switch
            {
                ServiceResultType.Success => NoContent(),
                _ => NotFound(new { Message = result.ErrorMessage })
            };
        }
    }
}