import test from "node:test";
import assert from "node:assert/strict";
import {
  createState,
  selectState,
  isCaptureMode,
  getCaptureSection,
} from "../src/scripts/state.mjs";

test("initial product illustrations remain ready for image capture", () => {
  assert.deepEqual(createState(), {
    filter: "waiting",
    context: "source",
  });
  assert.notEqual(createState(), createState());
});

test("selections return a new state without changing other illustrations", () => {
  const original = Object.freeze(createState());
  for (const [key, values] of Object.entries({
    filter: ["all", "waiting", "connections"],
    context: ["source", "work", "action"],
  })) {
    for (const value of values) {
      const next = selectState(original, key, value);
      assert.deepEqual(next, { ...original, [key]: value });
      assert.notEqual(next, original);
    }
  }
  assert.equal(original.filter, "waiting");
});

test("unknown keys and unsupported values cannot enter product state", () => {
  const original = createState();
  for (const [key, value] of [
    ["view", "grid"],
    ["filter", "review"],
    ["step", "3"],
    ["constructor", "bad"],
    ["__proto__", "bad"],
  ]) {
    assert.deepEqual(selectState(original, key, value), original);
  }
});

test("only the explicit capture flag enables a still presentation", () => {
  assert.equal(isCaptureMode("?capture=1"), true);
  for (const query of ["", "?capture=0", "?capture=true", "?other=1"]) {
    assert.equal(isCaptureMode(query), false);
  }
});

test("isolated capture only accepts known sections with explicit capture mode", () => {
  for (const section of [
    "hero",
    "workflow",
    "video",
    "selector",
    "agent",
    "prepared",
    "context",
    "progression",
    "stats",
    "modules",
    "closing",
  ]) {
    assert.equal(getCaptureSection(`?capture=1&section=${section}`), section);
  }
  for (const search of [
    "",
    "?section=hero",
    "?capture=0&section=hero",
    "?capture=1",
    "?capture=1&section=unknown",
    "?capture=1&section=views",
    "?capture=1&section=recurring",
  ]) {
    assert.equal(getCaptureSection(search), null);
  }
});