// This file is auto-generated by alef — DO NOT EDIT.
// alef:hash:4e15143f4af1ae8bafbdb1506ef057da924484c66a19483966333558ad437e75
// To regenerate: alef generate
// To verify freshness: alef verify --exit-code
// Issues & docs: https://github.com/kreuzberg-dev/alef
#nullable enable

using System;
using System.Collections.Generic;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace Kreuzberg;

/// <summary>
/// Comprehensive Djot document structure with semantic preservation.
///
/// This type captures the full richness of Djot markup, including:
/// - Block-level structures (headings, lists, blockquotes, code blocks, etc.)
/// - Inline formatting (emphasis, strong, highlight, subscript, superscript, etc.)
/// - Attributes (classes, IDs, key-value pairs)
/// - Links, images, footnotes
/// - Math expressions (inline and display)
/// - Tables with full structure
///
/// Available when the `djot` feature is enabled.
/// </summary>
public sealed record DjotContent
{
    /// <summary>
    /// Plain text representation for backwards compatibility
    /// </summary>
    [JsonPropertyName("plain_text")]
    public required string PlainText { get; init; }

    /// <summary>
    /// Structured block-level content
    /// </summary>
    [JsonPropertyName("blocks")]
    public List<FormattedBlock> Blocks { get; init; } = [];

    /// <summary>
    /// Metadata from YAML frontmatter
    /// </summary>
    [JsonPropertyName("metadata")]
    public required Metadata Metadata { get; init; }

    /// <summary>
    /// Extracted tables as structured data
    /// </summary>
    [JsonPropertyName("tables")]
    public List<Table> Tables { get; init; } = [];

    /// <summary>
    /// Extracted images with metadata
    /// </summary>
    [JsonPropertyName("images")]
    public List<DjotImage> Images { get; init; } = [];

    /// <summary>
    /// Extracted links with URLs
    /// </summary>
    [JsonPropertyName("links")]
    public List<DjotLink> Links { get; init; } = [];

    /// <summary>
    /// Footnote definitions
    /// </summary>
    [JsonPropertyName("footnotes")]
    public List<Footnote> Footnotes { get; init; } = [];

    /// <summary>
    /// Attributes mapped by element identifier (if present)
    /// </summary>
    [JsonPropertyName("attributes")]
    public List<string>? Attributes { get; init; } = null;


    /// <summary>
    /// Parse a <see cref="DjotContent"/> from a JSON string.
    /// </summary>
    /// <exception cref="KreuzbergException">When the JSON cannot be deserialised.</exception>
    public static DjotContent FromJson(string json)
    {
        try
        {
            return JsonSerializer.Deserialize<DjotContent>(json, JsonOptions)
                ?? throw new KreuzbergException($"Failed to parse DjotContent from JSON: deserializer returned null");
        }
        catch (KreuzbergException)
        {
            throw;
        }
        catch (Exception e)
        {
            throw new KreuzbergException($"Failed to parse DjotContent from JSON: {e.Message}", e);
        }
    }

    private static readonly JsonSerializerOptions JsonOptions = new()
    {
        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault,
        Converters = { new JsonStringEnumConverter(JsonNamingPolicy.SnakeCaseLower) },
    };

    /// <summary>Options for serializing config/input objects to FFI. Strips nulls
    /// (nullable C# fields default to null and would override required Rust fields with
    /// non-deserialisable nulls) but preserves explicit false/0 so caller intent is kept.</summary>
    private static readonly JsonSerializerOptions JsonSerializationOptions = new()
    {
        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
        Converters = { new JsonStringEnumConverter(JsonNamingPolicy.SnakeCaseLower) },
    };
}
