using System;
using System.Collections.Generic;
using System.IO;
using CounterDrone.Core;
using CounterDrone.Core.Models;
using SQLite;

namespace CounterDrone.Core.Tests
{
    /// <summary>测试辅助：从 seeded 数据库读取（与生产环境同源）</summary>
    internal static class TestData
    {
        private static readonly string _tempDir;
        private static readonly SQLiteConnection _db;

        static TestData()
        {
            _tempDir = Path.Combine(Path.GetTempPath(), $"cd_td_{Guid.NewGuid():N}");
            var paths = new TestPathProvider(_tempDir);
            var dbm = new DatabaseManager(paths);
            _db = dbm.OpenMainDb();
        }

        private static List<AmmunitionSpec>? _ammo;
        public static List<AmmunitionSpec> Ammo =>
            _ammo ??= new List<AmmunitionSpec>(_db.Table<AmmunitionSpec>());

        private static DefaultData? _all;
        public static DefaultData All
        {
            get
            {
                if (_all == null)
                {
                    var dir = TestPathProvider.FindProjectDataDirectory()!;
                    _all = DefaultData.Load(new DirPathProvider(dir));
                }
                return _all;
            }
        }

        private class DirPathProvider : IPathProvider
        {
            private readonly string _dir;
            public DirPathProvider(string dir) => _dir = dir;
            public string GetDataRoot() => _dir;
            public string GetMainDbPath() => throw new NotImplementedException();
            public string GetFramesDir() => throw new NotImplementedException();
            public string GetModelsDir() => throw new NotImplementedException();
        }

        public static void Cleanup()
        {
            _db?.Close();
            if (Directory.Exists(_tempDir)) Directory.Delete(_tempDir, true);
        }
    }
}
