using System.Security.Claims;
using HoneyBox.Core.Interfaces;
using HoneyBox.Model.Base;
using HoneyBox.Model.Models;
using HoneyBox.Model.Models.Goods;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace HoneyBox.Api.Controllers;

/// <summary>
/// 商品控制器
/// </summary>
[ApiController]
[Route("api")]
public class GoodsController : ControllerBase
{
    private readonly IGoodsService _goodsService;
    private readonly IPrizeService _prizeService;
    private readonly ILogger<GoodsController> _logger;

    public GoodsController(
        IGoodsService goodsService,
        IPrizeService prizeService,
        ILogger<GoodsController> logger)
    {
        _goodsService = goodsService;
        _prizeService = prizeService;
        _logger = logger;
    }

    /// <summary>
    /// 获取商品列表
    /// POST /api/goods_list
    /// Requirements: 1.1-1.6
    /// </summary>
    [HttpPost("goods_list")]
    [Authorize]
    public async Task<ApiResponse<PageResponse<GoodsListDto>>> GetGoodsList([FromBody] GoodsListRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<PageResponse<GoodsListDto>>.Unauthorized();
        }

        try
        {
            request ??= new GoodsListRequest();
            if (request.Page < 1) request.Page = 1;
            if (request.PageSize < 1) request.PageSize = 15;

            var result = await _goodsService.GetGoodsListAsync(request, userId.Value);
            return ApiResponse<PageResponse<GoodsListDto>>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get goods list: UserId={UserId}", userId);
            return ApiResponse<PageResponse<GoodsListDto>>.Fail("获取商品列表失败");
        }
    }

    /// <summary>
    /// 获取商品详情
    /// POST /api/goods_detail
    /// Requirements: 2.1-2.7
    /// </summary>
    [HttpPost("goods_detail")]
    [Authorize]
    public async Task<ApiResponse<GoodsDetailResponseDto>> GetGoodsDetail([FromBody] GoodsDetailRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<GoodsDetailResponseDto>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<GoodsDetailResponseDto>.Fail("商品ID不能为空");
            }

            var result = await _goodsService.GetGoodsDetailAsync(request.GoodsId, request.GoodsNum, userId.Value);
            return ApiResponse<GoodsDetailResponseDto>.Success(result);
        }
        catch (InvalidOperationException ex)
        {
            _logger.LogWarning("Get goods detail failed: GoodsId={GoodsId}, Error={Error}", request?.GoodsId, ex.Message);
            return ApiResponse<GoodsDetailResponseDto>.Fail(ex.Message);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get goods detail: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<GoodsDetailResponseDto>.Fail("获取商品详情失败");
        }
    }

    /// <summary>
    /// 获取商品子奖品列表
    /// POST /api/goods_children
    /// Requirements: 3.1-3.3
    /// </summary>
    [HttpPost("goods_children")]
    [Authorize]
    public async Task<ApiResponse<List<GoodsChildrenDto>>> GetGoodsChildren([FromBody] GoodsChildrenRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<List<GoodsChildrenDto>>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0 || request.GoodsListId <= 0)
            {
                return ApiResponse<List<GoodsChildrenDto>>.Fail("参数不能为空");
            }

            var result = await _goodsService.GetGoodsChildrenAsync(request.GoodsId, request.GoodsNum, request.GoodsListId);
            return ApiResponse<List<GoodsChildrenDto>>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get goods children: GoodsId={GoodsId}, GoodsListId={GoodsListId}", 
                request?.GoodsId, request?.GoodsListId);
            return ApiResponse<List<GoodsChildrenDto>>.Fail("获取子奖品列表失败");
        }
    }

    /// <summary>
    /// 获取商品扩展配置
    /// POST /api/goods_extend
    /// Requirements: 4.1-4.3
    /// </summary>
    [HttpPost("goods_extend")]
    [Authorize]
    public async Task<ApiResponse<GoodsExtendDto>> GetGoodsExtend([FromBody] GoodsExtendRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<GoodsExtendDto>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<GoodsExtendDto>.Fail("商品ID不能为空");
            }

            var result = await _goodsService.GetGoodsExtendAsync(request.GoodsId, request.GoodsType);
            return ApiResponse<GoodsExtendDto>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get goods extend: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<GoodsExtendDto>.Fail("获取商品扩展配置失败");
        }
    }

    /// <summary>
    /// 获取箱号列表
    /// POST /api/goods_num_list
    /// Requirements: 5.1
    /// </summary>
    [HttpPost("goods_num_list")]
    [Authorize]
    public async Task<ApiResponse<List<BoxGroupDto>>> GetBoxList([FromBody] BoxListRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<List<BoxGroupDto>>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<List<BoxGroupDto>>.Fail("商品ID不能为空");
            }

            var result = await _goodsService.GetBoxListAsync(request.GoodsId);
            return ApiResponse<List<BoxGroupDto>>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get box list: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<List<BoxGroupDto>>.Fail("获取箱号列表失败");
        }
    }

    /// <summary>
    /// 获取箱号详情
    /// POST /api/goods_num_detail
    /// Requirements: 5.2-5.4
    /// </summary>
    [HttpPost("goods_num_detail")]
    [Authorize]
    public async Task<ApiResponse<List<BoxDetailDto>>> GetBoxDetail([FromBody] BoxDetailRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<List<BoxDetailDto>>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<List<BoxDetailDto>>.Fail("商品ID不能为空");
            }

            var result = await _goodsService.GetBoxDetailAsync(request.GoodsId, request.PageNo, request.Sort);
            return ApiResponse<List<BoxDetailDto>>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get box detail: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<List<BoxDetailDto>>.Fail("获取箱号详情失败");
        }
    }

    /// <summary>
    /// 获取奖品数量统计
    /// POST /api/goods_prize_count
    /// Requirements: 7.1
    /// </summary>
    [HttpPost("goods_prize_count")]
    [Authorize]
    public async Task<ApiResponse<PrizeCountResponseDto>> GetPrizeCount([FromBody] PrizeCountRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<PrizeCountResponseDto>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<PrizeCountResponseDto>.Fail("商品ID不能为空");
            }

            var result = await _prizeService.GetPrizeCountAsync(request.GoodsId);
            return ApiResponse<PrizeCountResponseDto>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get prize count: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<PrizeCountResponseDto>.Fail("获取奖品统计失败");
        }
    }

    /// <summary>
    /// 获取奖品内容
    /// POST /api/goods_prize_content
    /// Requirements: 7.2
    /// </summary>
    [HttpPost("goods_prize_content")]
    [Authorize]
    public async Task<ApiResponse<PrizeContentResponseDto>> GetPrizeContent([FromBody] PrizeContentRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<PrizeContentResponseDto>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<PrizeContentResponseDto>.Fail("商品ID不能为空");
            }

            var result = await _prizeService.GetPrizeContentAsync(request.GoodsId, request.Num);
            return ApiResponse<PrizeContentResponseDto>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get prize content: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<PrizeContentResponseDto>.Fail("获取奖品内容失败");
        }
    }

    /// <summary>
    /// 获取中奖记录
    /// POST /api/goods_prize_logs
    /// Requirements: 8.1-8.4
    /// </summary>
    [HttpPost("goods_prize_logs")]
    [Authorize]
    public async Task<ApiResponse<PrizeLogsResponseDto>> GetPrizeLogs([FromBody] PrizeLogsRequest? request)
    {
        var userId = GetCurrentUserId();
        if (userId == null)
        {
            return ApiResponse<PrizeLogsResponseDto>.Unauthorized();
        }

        try
        {
            if (request == null || request.GoodsId <= 0)
            {
                return ApiResponse<PrizeLogsResponseDto>.Fail("商品ID不能为空");
            }

            var page = request.Page < 1 ? 1 : request.Page;
            var pageSize = request.PageSize < 1 ? 15 : request.PageSize;

            var result = await _prizeService.GetPrizeLogsAsync(
                request.GoodsId, 
                request.GoodsNum, 
                request.ShangId, 
                page, 
                pageSize);
            return ApiResponse<PrizeLogsResponseDto>.Success(result);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to get prize logs: GoodsId={GoodsId}", request?.GoodsId);
            return ApiResponse<PrizeLogsResponseDto>.Fail("获取中奖记录失败");
        }
    }

    #region Private Helper Methods

    /// <summary>
    /// 获取当前登录用户ID
    /// </summary>
    private int? GetCurrentUserId()
    {
        var userIdClaim = User.FindFirst(ClaimTypes.NameIdentifier);
        if (userIdClaim == null || !int.TryParse(userIdClaim.Value, out var userId))
        {
            return null;
        }
        return userId;
    }

    #endregion
}