// 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>
/// Dublin Core metadata from docProps/core.xml
///
/// Contains standard metadata fields defined by the Dublin Core standard
/// and Office-specific extensions.
/// </summary>
public sealed record CoreProperties
{
    /// <summary>
    /// Document title
    /// </summary>
    [JsonPropertyName("title")]
    public string? Title { get; init; } = null;

    /// <summary>
    /// Document subject/topic
    /// </summary>
    [JsonPropertyName("subject")]
    public string? Subject { get; init; } = null;

    /// <summary>
    /// Document creator/author
    /// </summary>
    [JsonPropertyName("creator")]
    public string? Creator { get; init; } = null;

    /// <summary>
    /// Keywords or tags
    /// </summary>
    [JsonPropertyName("keywords")]
    public string? Keywords { get; init; } = null;

    /// <summary>
    /// Document description/abstract
    /// </summary>
    [JsonPropertyName("description")]
    public string? Description { get; init; } = null;

    /// <summary>
    /// User who last modified the document
    /// </summary>
    [JsonPropertyName("last_modified_by")]
    public string? LastModifiedBy { get; init; } = null;

    /// <summary>
    /// Revision number
    /// </summary>
    [JsonPropertyName("revision")]
    public string? Revision { get; init; } = null;

    /// <summary>
    /// Creation timestamp (ISO 8601)
    /// </summary>
    [JsonPropertyName("created")]
    public string? Created { get; init; } = null;

    /// <summary>
    /// Last modification timestamp (ISO 8601)
    /// </summary>
    [JsonPropertyName("modified")]
    public string? Modified { get; init; } = null;

    /// <summary>
    /// Document category
    /// </summary>
    [JsonPropertyName("category")]
    public string? Category { get; init; } = null;

    /// <summary>
    /// Content status (Draft, Final, etc.)
    /// </summary>
    [JsonPropertyName("content_status")]
    public string? ContentStatus { get; init; } = null;

    /// <summary>
    /// Document language
    /// </summary>
    [JsonPropertyName("language")]
    public string? Language { get; init; } = null;

    /// <summary>
    /// Unique identifier
    /// </summary>
    [JsonPropertyName("identifier")]
    public string? Identifier { get; init; } = null;

    /// <summary>
    /// Document version
    /// </summary>
    [JsonPropertyName("version")]
    public string? Version { get; init; } = null;

    /// <summary>
    /// Last print timestamp (ISO 8601)
    /// </summary>
    [JsonPropertyName("last_printed")]
    public string? LastPrinted { get; init; } = null;


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