using DramaLing.Api.Data;
using DramaLing.Api.Models.Entities;

namespace DramaLing.Api.Tests.Integration.Fixtures;

/// <summary>
/// 測試資料種子類別
/// 提供一致的測試資料給所有整合測試使用
/// </summary>
public static class TestDataSeeder
{
    // 測試使用者 IDs
    public static readonly Guid TestUser1Id = new("11111111-1111-1111-1111-111111111111");
    public static readonly Guid TestUser2Id = new("22222222-2222-2222-2222-222222222222");

    // 測試詞卡 IDs
    public static readonly Guid TestFlashcard1Id = new("AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA");
    public static readonly Guid TestFlashcard2Id = new("BBBBBBBB-BBBB-BBBB-BBBB-BBBBBBBBBBBB");
    public static readonly Guid TestFlashcard3Id = new("CCCCCCCC-CCCC-CCCC-CCCC-CCCCCCCCCCCC");

    /// <summary>
    /// 種子測試資料
    /// </summary>
    public static void SeedTestData(DramaLingDbContext context)
    {
        // 如果已有資料則跳過
        if (context.Users.Any()) return;

        SeedUsers(context);
        SeedFlashcards(context);
        SeedFlashcardReviews(context);

        context.SaveChanges();
    }

    private static void SeedUsers(DramaLingDbContext context)
    {
        var users = new[]
        {
            new User
            {
                Id = TestUser1Id,
                Username = "testuser1",
                Email = "test1@example.com",
                PasswordHash = "$2a$11$TestHashForUser1Password123", // bcrypt hash for "password123"
                DisplayName = "Test User 1",
                CreatedAt = DateTime.UtcNow.AddDays(-30),
                UpdatedAt = DateTime.UtcNow
            },
            new User
            {
                Id = TestUser2Id,
                Username = "testuser2",
                Email = "test2@example.com",
                PasswordHash = "$2a$11$TestHashForUser2Password456", // bcrypt hash for "password456"
                DisplayName = "Test User 2",
                CreatedAt = DateTime.UtcNow.AddDays(-15),
                UpdatedAt = DateTime.UtcNow
            }
        };

        context.Users.AddRange(users);
    }

    private static void SeedFlashcards(DramaLingDbContext context)
    {
        var flashcards = new[]
        {
            new Flashcard
            {
                Id = TestFlashcard1Id,
                UserId = TestUser1Id,
                Word = "hello",
                Translation = "你好",
                Definition = "A greeting used when meeting someone",
                PartOfSpeech = "interjection",
                Pronunciation = "/həˈloʊ/",
                Example = "Hello, how are you today?",
                ExampleTranslation = "你好，你今天好嗎？",
                DifficultyLevelNumeric = 1, // A1
                IsFavorite = false,
                Synonyms = "[\"hi\", \"greetings\", \"salutations\"]",
                CreatedAt = DateTime.UtcNow.AddDays(-10),
                UpdatedAt = DateTime.UtcNow.AddDays(-5)
            },
            new Flashcard
            {
                Id = TestFlashcard2Id,
                UserId = TestUser1Id,
                Word = "beautiful",
                Translation = "美麗的",
                Definition = "Having qualities that give great pleasure to see or hear",
                PartOfSpeech = "adjective",
                Pronunciation = "/ˈbjuː.tɪ.fəl/",
                Example = "The sunset was absolutely beautiful.",
                ExampleTranslation = "夕陽非常美麗。",
                DifficultyLevelNumeric = 2, // A2
                IsFavorite = true,
                Synonyms = "[\"gorgeous\", \"stunning\", \"lovely\"]",
                CreatedAt = DateTime.UtcNow.AddDays(-8),
                UpdatedAt = DateTime.UtcNow.AddDays(-3)
            },
            new Flashcard
            {
                Id = TestFlashcard3Id,
                UserId = TestUser2Id,
                Word = "sophisticated",
                Translation = "精緻的，複雜的",
                Definition = "Having a refined knowledge of the ways of the world",
                PartOfSpeech = "adjective",
                Pronunciation = "/səˈfɪs.tɪ.keɪ.tɪd/",
                Example = "She has very sophisticated taste in art.",
                ExampleTranslation = "她對藝術有非常精緻的品味。",
                DifficultyLevelNumeric = 5, // C1
                IsFavorite = false,
                Synonyms = "[\"refined\", \"elegant\", \"cultured\"]",
                CreatedAt = DateTime.UtcNow.AddDays(-5),
                UpdatedAt = DateTime.UtcNow.AddDays(-1)
            }
        };

        context.Flashcards.AddRange(flashcards);
    }

    private static void SeedFlashcardReviews(DramaLingDbContext context)
    {
        var reviews = new[]
        {
            new FlashcardReview
            {
                Id = Guid.NewGuid(),
                UserId = TestUser1Id,
                FlashcardId = TestFlashcard1Id,
                SuccessCount = 3,
                TotalCorrectCount = 5,
                TotalWrongCount = 2,
                TotalSkipCount = 1,
                LastReviewDate = DateTime.UtcNow.AddDays(-2),
                LastSuccessDate = DateTime.UtcNow.AddDays(-2),
                NextReviewDate = DateTime.UtcNow.AddDays(4), // 2^3 = 8 天後 (但已過 4 天)
                CreatedAt = DateTime.UtcNow.AddDays(-10),
                UpdatedAt = DateTime.UtcNow.AddDays(-2)
            },
            new FlashcardReview
            {
                Id = Guid.NewGuid(),
                UserId = TestUser1Id,
                FlashcardId = TestFlashcard2Id,
                SuccessCount = 1,
                TotalCorrectCount = 2,
                TotalWrongCount = 3,
                TotalSkipCount = 0,
                LastReviewDate = DateTime.UtcNow.AddDays(-3),
                LastSuccessDate = DateTime.UtcNow.AddDays(-3),
                NextReviewDate = DateTime.UtcNow.AddDays(-1), // 應該要複習了
                CreatedAt = DateTime.UtcNow.AddDays(-8),
                UpdatedAt = DateTime.UtcNow.AddDays(-3)
            }
            // TestFlashcard3 沒有複習記錄 (新詞卡)
        };

        context.FlashcardReviews.AddRange(reviews);
    }

    /// <summary>
    /// 清除所有測試資料
    /// </summary>
    public static void ClearTestData(DramaLingDbContext context)
    {
        context.FlashcardReviews.RemoveRange(context.FlashcardReviews);
        context.Flashcards.RemoveRange(context.Flashcards);
        context.Users.RemoveRange(context.Users);
        context.OptionsVocabularies.RemoveRange(context.OptionsVocabularies);
        context.SaveChanges();
    }
}