"use strict";
const test = require("node:test");
const assert = require("node:assert/strict");
const { firstCappedIndex } = require("../main.js").__test__;

test("firstCappedIndex finds the cap on the real measured live-preview chain", () => {
  // Measured in Obsidian live preview via getComputedStyle, walking outward
  // from .webinar-dash. The cap is on .cm-content at 700px; .cm-sizer - the
  // element a class-name lookup finds first - is already uncapped at 1680px.
  // Matching by class name selected .cm-sizer and stopped, leaving the real
  // cap in place. This test pins the measurement so that cannot recur.
  const chain = [
    { maxWidth: "none", isWorkspaceLeaf: false }, // block-language-webinar-dash
    { maxWidth: "none", isWorkspaceLeaf: false }, // cm-preview-code-block
    { maxWidth: "700px", isWorkspaceLeaf: false }, // cm-content  <- the cap
    { maxWidth: "none", isWorkspaceLeaf: false }, // cm-contentContainer
    { maxWidth: "none", isWorkspaceLeaf: false }, // cm-sizer
    { maxWidth: "none", isWorkspaceLeaf: false }, // cm-scroller
  ];
  assert.equal(firstCappedIndex(chain), 2);
});

test("firstCappedIndex finds the cap on a reading-view chain", () => {
  const chain = [
    { maxWidth: "none", isWorkspaceLeaf: false }, // block-language-webinar-dash
    { maxWidth: "700px", isWorkspaceLeaf: false }, // markdown-preview-sizer
    { maxWidth: "none", isWorkspaceLeaf: false }, // markdown-preview-view
  ];
  assert.equal(firstCappedIndex(chain), 1);
});

test("firstCappedIndex returns -1 when nothing above the dashboard is capped", () => {
  const chain = [
    { maxWidth: "none", isWorkspaceLeaf: false },
    { maxWidth: "none", isWorkspaceLeaf: false },
  ];
  assert.equal(firstCappedIndex(chain), -1);
});

test("firstCappedIndex stops at the workspace leaf rather than widening chrome", () => {
  const chain = [
    { maxWidth: "none", isWorkspaceLeaf: false },
    { maxWidth: "none", isWorkspaceLeaf: true }, // workspace-leaf
    { maxWidth: "900px", isWorkspaceLeaf: false }, // must never be reached
  ];
  assert.equal(firstCappedIndex(chain), -1);
});

test("firstCappedIndex takes the innermost cap when several ancestors are capped", () => {
  const chain = [
    { maxWidth: "none", isWorkspaceLeaf: false },
    { maxWidth: "700px", isWorkspaceLeaf: false },
    { maxWidth: "1200px", isWorkspaceLeaf: false },
  ];
  assert.equal(firstCappedIndex(chain), 1);
});