using BuildFlow.Shared.Infrastructure;
using File.Domain;
using File.Infrastructure.Persistence;
using File.Infrastructure.Storage;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using Volo.Abp.Modularity;

namespace File.Infrastructure;

/// <summary>
/// Infrastructure 层模块，注册数据库上下文（挂载审计拦截器）与 S3 存储服务。
/// </summary>
[DependsOn(typeof(FileDomainModule))]
public class FileInfrastructureModule : AbpModule
{
    public override void ConfigureServices(ServiceConfigurationContext context)
    {
        var services = context.Services;
        var config = services.GetConfiguration();

        // DbContext 挂载审计拦截器，统一从 Default 连接串派生（替换 Database 名）
        var baseConn = config.GetConnectionString("Default")!;
        var fsConn = $"{baseConn};Database=file_system";
        services.AddDbContext<FileDbContext>((sp, options) =>
            options.UseNpgsql(fsConn)
                   .AddInterceptors(sp.GetRequiredService<AuditInterceptor>()));

        // Scoped 生命周期：每个 HTTP 请求创建一个拦截器实例，确保 ICurrentUserContext 正确获取当前用户
        services.AddScoped<AuditInterceptor>();

        // S3 兼容存储（单例，AmazonS3Client 线程安全可复用）
        services.Configure<S3Options>(config.GetSection(S3Options.SectionName));
        services.AddSingleton<IS3StorageService>(sp =>
        {
            var options = sp.GetRequiredService<IOptions<S3Options>>().Value;
            return new S3StorageService(Options.Create(options));
        });
    }
}