using System.Runtime.CompilerServices;
using BuildFlow.Shared.Domain.Common;
using File.Infrastructure.Persistence;
using Microsoft.EntityFrameworkCore;

namespace BuildFlow.File.Tests;

/// <summary>
/// file 模块 InMemory 测试数据库工厂。每个用例使用独立库名，并在保存前自动补齐审计字段
/// （IAuditable / IHasOperatorIP），避免实体因必填审计列缺失而失败。
/// </summary>
internal static class FileTestDb
{
    public static FileDbContext Create([CallerMemberName] string testName = "")
    {
        var options = new DbContextOptionsBuilder<FileDbContext>()
            .UseInMemoryDatabase($"file-{testName}-{Guid.NewGuid():N}")
            .Options;
        var db = new FileDbContext(options);
        db.SavingChanges += FillAuditFields;
        return db;
    }

    private static void FillAuditFields(object? sender, EventArgs args)
    {
        if (sender is not FileDbContext db) return;

        foreach (var entry in db.ChangeTracker.Entries())
        {
            if (entry.Entity is IAuditable auditable)
            {
                auditable.CreatedBy ??= "test";
                auditable.UpdatedBy ??= "test";
                if (auditable.CreatedAt == default) auditable.CreatedAt = DateTime.UtcNow;
                if (auditable.UpdatedAt == default) auditable.UpdatedAt = DateTime.UtcNow;
            }

            if (entry.Entity is IHasOperatorIP operatorEntity)
                operatorEntity.OperatorIP ??= "127.0.0.1";
        }
    }
}