import { readFileSync } from "node:fs";
import { describe, expect, it } from "vitest";

describe("home progress list layout", () => {
  it("keeps the continue reading list scrollable after three visible books", () => {
    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
    const continueTile = styles.match(/\.continue-tile\s*\{[^}]+\}/)?.[0] ?? "";

    expect(styles).toContain(".continue-grid,\n.library-list {\n  --continue-visible-rows: 3;");
    expect(styles).toContain("--continue-tile-block-size: 112px");
    expect(styles).toContain("max-height: calc((var(--continue-tile-block-size) * var(--continue-visible-rows)) + (10px * (var(--continue-visible-rows) - 1)))");
    expect(styles).toContain("overflow-y: auto");
    expect(styles).toContain("scrollbar-gutter: stable");
    expect(continueTile).toContain("block-size: var(--continue-tile-block-size)");
    expect(continueTile).toContain("overflow: hidden");
  });

  it("keeps home book cards scoped and simplified", () => {
    const source = readFileSync(new URL("./HomePage.tsx", import.meta.url), "utf8");

    expect(source).toContain("renderHomeBook");
    expect(source).toContain("home-book-card");
    expect(source).toContain("progressPercent");
    expect(source).toContain("<Meter value={options.progressPercent} />");
    expect(source).toContain("progressPercent: item.progress.percent");
    expect(source).not.toContain("<BookCard");
    expect(source).not.toContain("FormatPill");
    expect(source).not.toContain("bookMetadataState");
    expect(source).not.toContain("bookMetadataStateLabel");
    expect(source).not.toContain("displayPublishedDate");
    expect(source).not.toContain("book.description");
    expect(source).not.toContain("book.language");
    expect(source).not.toContain("API absente ou incomplete");
    expect(source).not.toContain("specimens de demonstration actifs");
    expect(source).not.toContain("Catalogue branche sur le serveur local");
    expect(source).not.toContain("Bibliotheque personnelle");
  });

  it("keeps visible book grids capped to five columns", () => {
    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
    const bookGrid = styles.match(/\.book-grid\s*\{[^}]+\}/)?.[0] ?? "";
    const homeBookGrid = styles.match(/\.home-book-grid\s*\{[^}]+\}/)?.[0] ?? "";

    expect(bookGrid).toContain("grid-template-columns: repeat(auto-fit, minmax(min(100%, max(var(--book-grid-column-min), calc((100% - (var(--book-grid-gap) * 4)) / 5))), 1fr))");
    expect(homeBookGrid).toContain("grid-template-columns: repeat(auto-fit, minmax(min(100%, max(var(--book-grid-column-min), calc((100% - (var(--book-grid-gap) * 4)) / 5))), 1fr))");
    expect(bookGrid).toContain("width: 100%");
    expect(homeBookGrid).toContain("width: 100%");
    expect(bookGrid).not.toContain("max-width");
    expect(homeBookGrid).not.toContain("max-width");
  });

  it("keeps the library list capped like continue reading", () => {
    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
    const libraryButton = styles.match(/\.library-list button\s*\{[^}]+\}/)?.[0] ?? "";

    expect(styles).toContain(".continue-grid,\n.library-list {\n  --continue-visible-rows: 3;");
    expect(styles).toContain("height: calc((var(--continue-tile-block-size) * var(--continue-visible-rows)) + (10px * (var(--continue-visible-rows) - 1)))");
    expect(styles).toContain("max-height: calc((var(--continue-tile-block-size) * var(--continue-visible-rows)) + (10px * (var(--continue-visible-rows) - 1)))");
    expect(libraryButton).toContain("block-size: var(--continue-tile-block-size)");
    expect(libraryButton).toContain("overflow: hidden");
  });
});