using System.Text.Json;
using Tiku.Domain.Content;

namespace Tiku.Application.Learning;

public sealed record LearningActor(Guid TenantId, Guid UserId);

public sealed record LearningList<TItem>(IReadOnlyCollection<TItem> Items);

public sealed record SubmitAnswerCommand(
    Guid QuestionId,
    Guid? PracticeSessionId,
    IReadOnlyCollection<string>? SelectedOptions,
    string? AnswerText,
    bool? SelfJudgedCorrect);

public sealed record QuestionActionCommand(Guid QuestionId, bool? Favorite);

public sealed record WordProgressCommand(
    Guid WordId,
    string? Status,
    int? CorrectDelta,
    int? WrongDelta,
    DateTimeOffset? NextReviewAt);

public sealed record FavoriteWordCommand(Guid WordId, bool? Favorite, string? Note);

public sealed record LearningLimitFilter(int? Limit = null, string? Status = null, Guid? UnitId = null);

public sealed record AnswerRecordItem(
    Guid Id,
    Guid QuestionId,
    Guid? QuestionVersionId,
    Guid? PracticeSessionId,
    JsonElement SelectedOptions,
    string? AnswerText,
    bool? IsCorrect,
    DateTimeOffset AnsweredAt);

public sealed record FavoriteQuestionItem(
    Guid QuestionId,
    string Source,
    DateTimeOffset CreatedAt);

public sealed record WrongQuestionItem(
    Guid QuestionId,
    int WrongCount,
    DateTimeOffset LastWrongAt,
    DateTimeOffset? ResolvedAt);

public sealed record WordProgressItem(
    Guid WordId,
    WordProgressStatus Status,
    int CorrectCount,
    int WrongCount,
    DateTimeOffset? LastReviewAt,
    DateTimeOffset? NextReviewAt,
    int ReviewCount,
    int CorrectStreak,
    WordReviewResult? LastResult,
    WordDueLevel DueLevel,
    JsonElement Metadata);

public sealed record FavoriteWordItem(
    Guid WordId,
    string? Note,
    DateTimeOffset? FavoritedAt);

public sealed record LearningActionResult(bool Ok, bool? IsFavorite = null);