using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using TakeoutSaaS.Infrastructure.App.Persistence;

namespace TakeoutSaaS.Integration.Tests.Fixtures;

/// <summary>
/// 集成测试用 SQLite 内存数据库（业务主库）。
/// </summary>
public sealed class SqliteTestDatabase : IDisposable
{
    private readonly SqliteConnection _connection;
    private readonly TestIdGenerator _idGenerator = new();
    private bool _initialized;

    public SqliteTestDatabase()
    {
        _connection = new SqliteConnection("Filename=:memory:");
        _connection.Open();
        Options = new DbContextOptionsBuilder<TakeoutAdminDbContext>()
            .UseSqlite(_connection)
            .EnableSensitiveDataLogging()
            .Options;
    }

    public DbContextOptions<TakeoutAdminDbContext> Options { get; }

    public TakeoutAdminDbContext CreateContext(long tenantId, long userId = 0)
    {
        EnsureCreated();
        // 1. AdminApi 不使用租户上下文；tenantId 参数仅用于兼容测试调用方签名
        _ = tenantId;

        // 2. (空行后) 按需注入当前用户与 ID 生成器
        return new TakeoutAdminDbContext(
            Options,
            userId == 0 ? null : new TestCurrentUserAccessor(userId),
            _idGenerator);
    }

    public void EnsureCreated()
    {
        if (_initialized)
        {
            return;
        }

        // 1. 创建并初始化数据库结构
        using var context = new TakeoutAdminDbContext(Options, idGenerator: _idGenerator);
        context.Database.EnsureCreated();
        _initialized = true;
    }

    public void Dispose()
    {
        _connection.Dispose();
    }
}