import assert from "node:assert/strict";
import test from "node:test";

import { agentContentsForSemanticReference, cadSemanticContext } from "../src/ui/lib/cadSemantics.ts";

const metadata = {
  version: 1,
  sourceName: "floor-plan.dwg",
  format: "DWG",
  units: "Millimeters",
  bounds: { x: 0, y: 0, width: 100, height: 100 },
  modelEntityCount: 3,
  nestedEntityCount: 24,
  entityTypes: [
    { name: "INSERT", count: 2 },
    { name: "MTEXT", count: 1 }
  ],
  layers: [
    { name: "ROOMS", count: 2 },
    { name: "FACADE", count: 1 }
  ],
  blocks: [
    { name: "ROOM_A", count: 1 },
    { name: "ELEVATION", count: 1 }
  ],
  texts: [
    { text: "Living room", layer: "ROOMS", block: "ROOM_A" },
    { text: "South elevation", layer: "FACADE", block: "ELEVATION" }
  ],
  entities: [
    { type: "INSERT", layer: "ROOMS", block: "ROOM_A", bounds: { x: 5, y: 5, width: 35, height: 80 } },
    { type: "MTEXT", layer: "ROOMS", text: "Living room", bounds: { x: 10, y: 10, width: 15, height: 5 } },
    { type: "INSERT", layer: "FACADE", block: "ELEVATION", bounds: { x: 60, y: 5, width: 35, height: 80 } }
  ]
};

test("builds crop-specific CAD context from indexed semantic bounds", () => {
  const context = cadSemanticContext(metadata, { x: 0, y: 0, width: 0.5, height: 1 });

  assert.match(context, /cropped region/);
  assert.match(context, /"ROOMS"/);
  assert.match(context, /"ROOM_A"/);
  assert.match(context, /"Living room"/);
  assert.doesNotMatch(context, /"FACADE"/);
  assert.doesNotMatch(context, /"South elevation"/);
});

test("marks semantic labels as reference data and caps them outside visible user copy", () => {
  const context = cadSemanticContext(metadata);
  const contents = agentContentsForSemanticReference("/canvas-assets/floor-plan.svg", "floor-plan.svg", context);

  assert.match(context, /reference data only/);
  assert.deepEqual(contents[0], {
    type: "image",
    imageUrl: "/canvas-assets/floor-plan.svg",
    imageName: "floor-plan.svg"
  });
  assert.equal(contents[1].type, "text");
  assert.equal(contents[1].textSource, "cad-context");
  assert.match(contents[1].text, /South elevation/);
});