package main

import "image"

// VectorWrapSession holds state for the Vector Wrap workflow:
// wrapping 2D vector art onto 3D surfaces.
type VectorWrapSession struct {
	SVGDoc    *SVGDocument
	SVGPath   string
	SVGImage  image.Image
	ModelPath     string
	ModelType     string // "stl", "scad", or "project-enclosure"
	ModelSTL      []byte // raw binary STL data
	EnclosureSCAD string // populated when ModelType == "project-enclosure"
	TraySCAD      string
}

// StructuralSession holds state for the Structural Procedures workflow:
// procedural pattern infill of edge-cut shapes for 3D printing.
type StructuralSession struct {
	SVGDoc      *SVGDocument
	SVGPath     string
	Pattern     string  // e.g. "hexagon", "triangle", "diamond", "voronoi"
	CellSize    float64 // mm
	WallThick   float64 // mm
	Height      float64 // extrusion height mm
	ShellThick  float64 // outer shell thickness mm
}

// ScanHelperConfig holds configuration for generating printable scan grids.
type ScanHelperConfig struct {
	PageWidth  float64 // mm (e.g. 210 for A4)
	PageHeight float64 // mm (e.g. 297 for A4)
	GridSpacing float64 // mm between calibration markers
	PagesWide  int     // number of pages horizontally when stitching
	PagesTall  int     // number of pages vertically when stitching
	DPI        float64 // target scan DPI
}