using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace RobotNet10.MapManager.Data;

/// <summary>
/// Editor-specific settings for each layout level
/// NOT part of VDMA LIF standard - UI/Editor extensions only
/// </summary>
[Table("LayoutLevelEditorSettings")]
public class LayoutLevelEditorSettings
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Guid Id { get; set; }

    /// <summary>
    /// Parent layout level reference (1-to-1 relationship)
    /// </summary>
    [Required]
    public Guid LevelId { get; set; }

    // ==========================================
    // EDGE SETTINGS
    // ==========================================

    /// <summary>
    /// Minimum edge length (in METERS) required to create an edge
    /// Prevents accidental creation of very short edges
    /// Default: 0.1 meters (10 cm)
    /// </summary>
    [Required]
    public double EdgeMinLengthCreate { get; set; } = 0.5;

    /// <summary>
    /// Auto-generate edge names when creating new edges
    /// Uses 8-character GUID: "Edge_a7f2e3b1"
    /// </summary>
    [Required]
    public bool EdgeNameAutoGenerate { get; set; } = false;

    // ==========================================
    // NODE SETTINGS
    // ==========================================

    /// <summary>
    /// Auto-generate node names when creating new nodes
    /// Uses 8-character GUID: "Node_a7f2e3b1"
    /// </summary>
    [Required]
    public bool NodeNameAutoGenerate { get; set; } = true;

    /// <summary>
    /// Node proximity radius (in METERS) for edge creation
    /// When creating an edge, if start/end point is within this radius of an existing node,
    /// the edge will connect to that existing node instead of creating a new one
    /// Default: 0.35 meters (35 cm)
    /// </summary>
    [Required]
    public double NodeProximityRadius { get; set; } = 0.35;

    // ==========================================
    // COORDINATE SYSTEM SETTINGS
    // ==========================================

    /// <summary>
    /// World coordinate origin X in METERS
    /// Defines where the world coordinate system (0, 0) is located
    /// Default: 0.0
    /// </summary>
    [Required]
    public double OriginX { get; set; } = 0.0;

    /// <summary>
    /// World coordinate origin Y in METERS
    /// Defines where the world coordinate system (0, 0) is located
    /// Default: 0.0
    /// </summary>
    [Required]
    public double OriginY { get; set; } = 0.0;

    /// <summary>
    /// Resolution: Meters per pixel
    /// Conversion factor between world coordinates (meters) and image coordinates (pixels)
    /// Example: 0.05 means 1 pixel = 5 cm in real world
    /// Default: 0.05 (5 cm per pixel)
    /// </summary>
    [Required]
    public double Resolution { get; set; } = 0.05;

    // ==========================================
    // COORDINATE BOUNDS (World Coordinates)
    // ==========================================

    /// <summary>
    /// Minimum X boundary in METERS (world coordinates)
    /// Defines the leftmost valid coordinate for this level
    /// Optional: null means no limit
    /// </summary>
    public double? BoundsMinX { get; set; }

    /// <summary>
    /// Maximum X boundary in METERS (world coordinates)
    /// Defines the rightmost valid coordinate for this level
    /// Optional: null means no limit
    /// </summary>
    public double? BoundsMaxX { get; set; }

    /// <summary>
    /// Minimum Y boundary in METERS (world coordinates)
    /// Defines the bottom valid coordinate for this level
    /// Optional: null means no limit
    /// </summary>
    public double? BoundsMinY { get; set; }

    /// <summary>
    /// Maximum Y boundary in METERS (world coordinates)
    /// Defines the top valid coordinate for this level
    /// Optional: null means no limit
    /// </summary>
    public double? BoundsMaxY { get; set; }

    // ==========================================
    // BACKGROUND IMAGE SETTINGS
    // ==========================================

    /// <summary>
    /// Background image width in PIXELS
    /// Represents the actual pixel dimensions of the image file
    /// Used for rendering and coordinate conversion
    /// </summary>
    public double? ImageWidth { get; set; }

    /// <summary>
    /// Background image height in PIXELS
    /// Represents the actual pixel dimensions of the image file
    /// Used for rendering and coordinate conversion
    /// </summary>
    public double? ImageHeight { get; set; }

    // ==========================================
    // METADATA
    // ==========================================

    /// <summary>
    /// When these settings were created
    /// </summary>
    [Required]
    public DateTime CreatedDate { get; set; } = DateTime.UtcNow;

    /// <summary>
    /// Last time these settings were modified
    /// </summary>
    [Required]
    public DateTime ModifiedDate { get; set; } = DateTime.UtcNow;

    // ==========================================
    // NAVIGATION PROPERTIES
    // ==========================================

    [ForeignKey(nameof(LevelId))]
    public virtual LayoutLevel Level { get; set; } = null!;
}