const std = @import("std");
const Object = @import("../Object.zig");
const Property = @import("../Property.zig").Property;
const PropertyData = @import("../Property.zig").Data;
const Rect_f = @import("../basic_models.zig").Rect_f;
const shape_mod = @import("shape.zig");

/// Свойства фигуры по умолчанию.
pub const default_shape_properties = [_]Property{
    .{ .data = .{ .end_point = .{ .x = 100, .y = 0 } } },
};

/// Теги обязательных свойств.
pub fn getRequiredTags() []const std.meta.Tag(PropertyData) {
    return &([_]std.meta.Tag(PropertyData){std.meta.activeTag(default_shape_properties[0].data)});
}

/// Добавляет к объекту свойства по умолчанию для линии.
pub fn appendDefaultShapeProperties(allocator: std.mem.Allocator, obj: *Object) !void {
    for (default_shape_properties) |prop| try obj.properties.append(allocator, prop);
}

/// Локальные границы: от (0,0) до end_point.
pub fn getLocalBounds(obj: *const Object) !Rect_f {
    try shape_mod.ensure(obj, .line);
    const ep = obj.getProperty(.end_point).?;
    const min_x = @min(0, ep.end_point.x);
    const max_x = @max(0, ep.end_point.x);
    const min_y = @min(0, ep.end_point.y);
    const max_y = @max(0, ep.end_point.y);
    return .{
        .x = min_x,
        .y = min_y,
        .w = max_x - min_x,
        .h = max_y - min_y,
    };
}