using System.Text.Json.Serialization;

namespace PlotLine.Models;

public sealed class PlotLineImportPackage
{
    public string? PackageVersion { get; set; }
    public string? Source { get; set; }
    public ImportProjectDto Project { get; set; } = new();
    public List<ImportBookDto> Books { get; set; } = [];

    [JsonExtensionData]
    public Dictionary<string, object>? ExtensionData { get; set; }
}

public sealed class ImportProjectDto
{
    public string Title { get; set; } = string.Empty;
    public string? Description { get; set; }
    public string? Notes { get; set; }
}

public sealed class ImportBookDto
{
    public string Title { get; set; } = string.Empty;
    public string? Subtitle { get; set; }
    public int SeriesOrder { get; set; }
    public bool DependsOnPreviousBook { get; set; }
    public string? Description { get; set; }
    public string? Notes { get; set; }
    public List<ImportChapterDto> Chapters { get; set; } = [];
}

public sealed class ImportChapterDto
{
    public decimal ChapterNumber { get; set; }
    public string Title { get; set; } = string.Empty;
    public int Order { get; set; }
    public string? Summary { get; set; }
    public string? Notes { get; set; }
    public List<ImportSceneDto> Scenes { get; set; } = [];
}

public sealed class ImportSceneDto
{
    public decimal SceneNumber { get; set; }
    public string Title { get; set; } = string.Empty;
    public int Order { get; set; }
    public string? Summary { get; set; }
    public string? PovCharacterName { get; set; }
    public string? LocationName { get; set; }
    public string? DateTimeText { get; set; }
    public string? PurposeText { get; set; }
    public string? OutcomeText { get; set; }
    public string? Notes { get; set; }
}

public sealed class ImportValidationResult
{
    public bool IsValid => Errors.Count == 0;
    public List<string> Errors { get; } = [];
    public List<string> Warnings { get; } = [];
}

public sealed class ImportPreview
{
    public PlotLineImportPackage? Package { get; init; }
    public ImportValidationResult Validation { get; init; } = new();
    public bool HasDuplicateProjectTitle { get; init; }
    public string? DuplicateImportProjectTitle { get; init; }
    public IReadOnlyList<ImportBookPreview> BookPreviews { get; init; } = [];
    public int BookCount => Package?.Books.Count ?? 0;
    public int ChapterCount => Package?.Books.Sum(book => book.Chapters.Count) ?? 0;
    public int SceneCount => Package?.Books.Sum(book => book.Chapters.Sum(chapter => chapter.Scenes.Count)) ?? 0;
}

public sealed class ImportBookPreview
{
    public ImportBookDto Book { get; init; } = new();
    public int ChapterCount => Book.Chapters.Count;
    public int SceneCount => Book.Chapters.Sum(chapter => chapter.Scenes.Count);
    public IReadOnlyList<ImportChapterPreview> ChapterPreviews { get; init; } = [];
}

public sealed class ImportChapterPreview
{
    public ImportChapterDto Chapter { get; init; } = new();
    public int SceneCount => Chapter.Scenes.Count;
}

public sealed class ImportResult
{
    public bool Succeeded { get; init; }
    public int? ProjectID { get; init; }
    public string ProjectName { get; init; } = string.Empty;
    public int BooksCreated { get; init; }
    public int ChaptersCreated { get; init; }
    public int ScenesCreated { get; init; }
    public IReadOnlyList<string> SkippedOptionalFields { get; init; } = [];
    public string? TechnicalDetail { get; init; }
    public string Message { get; init; } = string.Empty;
}