using MiAssessment.Core.Interfaces;
using MiAssessment.Model.Data;
using MiAssessment.Model.Models.Business;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;

namespace MiAssessment.Core.Services;

/// <summary>
/// 业务详情服务实现
/// </summary>
public class BusinessService : IBusinessService
{
    private readonly MiAssessmentDbContext _dbContext;
    private readonly ILogger<BusinessService> _logger;

    /// <summary>
    /// 构造函数
    /// </summary>
    /// <param name="dbContext">数据库上下文</param>
    /// <param name="logger">日志记录器</param>
    public BusinessService(
        MiAssessmentDbContext dbContext,
        ILogger<BusinessService> logger)
    {
        _dbContext = dbContext;
        _logger = logger;
    }

    /// <inheritdoc />
    public async Task<BusinessDetailDto?> GetDetailAsync(long id)
    {
        _logger.LogDebug("获取业务详情，ID: {Id}", id);

        var businessPage = await _dbContext.BusinessPages
            .AsNoTracking()
            .Where(b => b.Id == id && b.Status == 1 && !b.IsDeleted)
            .Select(b => new BusinessDetailDto
            {
                Id = b.Id,
                Title = b.Title,
                ImageUrl = b.ImageUrl,
                ShowButton = b.ShowButton,
                ButtonText = b.ButtonText,
                ButtonLink = b.ButtonLink
            })
            .FirstOrDefaultAsync();

        if (businessPage == null)
        {
            _logger.LogDebug("业务页面不存在或已禁用，ID: {Id}", id);
            return null;
        }

        _logger.LogDebug("获取到业务详情，ID: {Id}, Title: {Title}", id, businessPage.Title);
        return businessPage;
    }
}