DocumentService/DocumentService.Application/Common/DTOs/Requests/PdfOperationRequests.cs

using DocumentService.Domain.Models.ValueObjects;

namespace DocumentService.Application.Common.DTOs.Requests;

/// <summary>
/// Request DTO for Base64-encoded PDF merge operation
/// </summary>
public record MergePdfsBase64Request
{
    /// <summary>
    /// Array of Base64-encoded PDF files (minimum 2 required)
    /// </summary>
    /// <example>["JVBERi0xLjQK...", "JVBERi0xLjQK..."]</example>
    public required List<string> Base64Pdfs { get; init; }

    /// <summary>
    /// Optional page ranges per PDF (null = all pages). 
    /// Format: "1-3,5" means pages 1, 2, 3, and 5.
    /// If provided, array length must match Base64Pdfs length.
    /// </summary>
    /// <example>["1-2", "1,3,5", null]</example>
    public List<string?>? PageRanges { get; init; }
}

/// <summary>
/// Request DTO for Base64-encoded PDF annotation
/// </summary>
public record AddAnnotationBase64Request : PdfBase64RequestBase
{
    /// <summary>
    /// Type of annotation to add
    /// </summary>
    /// <example>TextMarkup</example>
    public required AnnotationType AnnotationType { get; init; }

    /// <summary>
    /// Target page number (1-indexed)
    /// </summary>
    /// <example>1</example>
    public required int PageNumber { get; init; }

    /// <summary>
    /// Rectangle X1 coordinate (left)
    /// </summary>
    /// <example>100.0</example>
    public required double X1 { get; init; }

    /// <summary>
    /// Rectangle Y1 coordinate (top or bottom depending on Origin)
    /// </summary>
    /// <example>100.0</example>
    public required double Y1 { get; init; }

    /// <summary>
    /// Rectangle X2 coordinate (right). Optional if Width is provided.
    /// </summary>
    /// <example>200.0</example>
    public double? X2 { get; init; }

    /// <summary>
    /// Rectangle Y2 coordinate (bottom or top depending on Origin). Optional if Height is provided.
    /// </summary>
    /// <example>120.0</example>
    public double? Y2 { get; init; }

    /// <summary>
    /// Rectangle width. Alternative to X2 (X2 = X1 + Width). Optional if X2 is provided.
    /// </summary>
    /// <example>100.0</example>
    public double? Width { get; init; }

    /// <summary>
    /// Rectangle height. Alternative to Y2 (Y2 = Y1 + Height). Optional if Y2 is provided.
    /// </summary>
    /// <example>20.0</example>
    public double? Height { get; init; }

    /// <summary>
    /// Annotation content (required for FreeText and StickyNote)
    /// </summary>
    /// <example>"Important text to highlight"</example>
    public string? Content { get; init; }

    /// <summary>
    /// Author name (optional)
    /// </summary>
    /// <example>"John Doe"</example>
    public string? Author { get; init; }

    /// <summary>
    /// Hex color (6 digits, e.g., "FF0000" for red). Optional - defaults vary by annotation type.
    /// </summary>
    /// <example>"FFFF00"</example>
    public string? Color { get; init; }

    /// <summary>
    /// Text markup style (Highlight, Underline, or Strikeout). Required for TextMarkup annotations.
    /// </summary>
    /// <example>Highlight</example>
    public TextMarkupStyle? TextMarkupStyle { get; init; }

    /// <summary>
    /// Coordinate origin (BottomLeft = PDF native, TopLeft = UI-friendly). Default: BottomLeft
    /// </summary>
    /// <example>BottomLeft</example>
    public AnnotationOrigin Origin { get; init; } = AnnotationOrigin.BottomLeft;
}

/// <summary>
/// Request DTO for Base64-encoded PDF stamp operation
/// </summary>
public record AddStampBase64Request : PdfBase64RequestBase
{
    /// <summary>
    /// Type of stamp (Text, Image, or Predefined)
    /// </summary>
    /// <example>Text</example>
    public required StampType StampType { get; init; }

    /// <summary>
    /// Target page numbers (1-indexed). Null or empty = all pages.
    /// </summary>
    /// <example>[1, 3, 5]</example>
    public int[]? PageNumbers { get; init; }

    /// <summary>
    /// Stamp position X coordinate
    /// </summary>
    /// <example>100.0</example>
    public required double X { get; init; }

    /// <summary>
    /// Stamp position Y coordinate
    /// </summary>
    /// <example>100.0</example>
    public required double Y { get; init; }

    /// <summary>
    /// Stamp width (optional, auto-size for images if not specified)
    /// </summary>
    /// <example>200.0</example>
    public double? Width { get; init; }

    /// <summary>
    /// Stamp height (optional, auto-size for images if not specified)
    /// </summary>
    /// <example>50.0</example>
    public double? Height { get; init; }

    /// <summary>
    /// Coordinate origin (BottomLeft = PDF native, TopLeft = UI-friendly). Default: BottomLeft
    /// </summary>
    /// <example>BottomLeft</example>
    public AnnotationOrigin Origin { get; init; } = AnnotationOrigin.BottomLeft;

    /// <summary>
    /// Text content (required for Text stamps)
    /// </summary>
    /// <example>"CONFIDENTIAL"</example>
    public string? Text { get; init; }

    /// <summary>
    /// Font name (default: Arial)
    /// </summary>
    /// <example>"Arial"</example>
    public string? FontName { get; init; }

    /// <summary>
    /// Font size in points (default: 12)
    /// </summary>
    /// <example>24.0</example>
    public double? FontSize { get; init; }

    /// <summary>
    /// Hex color (6 digits, e.g., "FF0000" for red, default: "000000")
    /// </summary>
    /// <example>"FF0000"</example>
    public string? Color { get; init; }

    /// <summary>
    /// Opacity (0.0 = transparent, 1.0 = opaque, default: 0.5)
    /// </summary>
    /// <example>0.5</example>
    public double? Opacity { get; init; }

    /// <summary>
    /// Rotation angle in degrees (0-360, default: 0)
    /// </summary>
    /// <example>45.0</example>
    public double? Rotation { get; init; }

    /// <summary>
    /// Stamp placement (Foreground = on top, Background = watermark effect, default: Foreground)
    /// </summary>
    /// <example>Foreground</example>
    public StampPlacement Placement { get; init; } = StampPlacement.Foreground;

    /// <summary>
    /// Base64-encoded image (required for Image stamps, PNG/JPEG)
    /// </summary>
    /// <example>"iVBORw0KGgoAAAANSUhEUgAA..."</example>
    public string? Base64Image { get; init; }

    /// <summary>
    /// Predefined stamp type (required for Predefined stamps)
    /// </summary>
    /// <example>Confidential</example>
    public PredefinedStampType? PredefinedType { get; init; }
}