// Run with: node --test tests/js/
const test = require("node:test");
const assert = require("node:assert/strict");
const {
    DEFAULT_SETTINGS,
    normalizeGallerySettings,
    gridColumnsStyle,
    LIMIT_OPTIONS,
} = require("../../web/js/gallery-settings.js");

test("defaults are a complete, sane settings object", () => {
    const s = normalizeGallerySettings(null);
    assert.deepEqual(s, DEFAULT_SETTINGS);
    assert.equal(s.defaultViewMode, "grid");
    assert.equal(s.defaultLimit, 100);
    assert.equal(s.gridColumns, 8);
    assert.equal(s.showImageInfo, true);
    assert.equal(s.sidebarCollapsedByDefault, false);
});

test("stored values override defaults and unknown keys are kept", () => {
    const s = normalizeGallerySettings({ defaultViewMode: "list", defaultLimit: 500, gridColumns: 10, showImageInfo: false, videoLoop: false, extra: 1 });
    assert.equal(s.defaultViewMode, "list");
    assert.equal(s.defaultLimit, 500);
    assert.equal(s.gridColumns, 10);
    assert.equal(s.showImageInfo, false);
    assert.equal(s.videoLoop, false);
    assert.equal(s.extra, 1);
});

test("invalid stored values fall back to defaults instead of breaking the page", () => {
    const s = normalizeGallerySettings({ defaultViewMode: "mosaic", defaultLimit: 7, gridColumns: "lots", showImageInfo: "no" });
    assert.equal(s.defaultViewMode, "grid");
    assert.equal(s.defaultLimit, 100);
    assert.equal(s.gridColumns, 8);
    assert.equal(s.showImageInfo, true);
});

test("numeric strings from <select> values are accepted and columns are clamped", () => {
    assert.equal(normalizeGallerySettings({ defaultLimit: "200" }).defaultLimit, 200);
    assert.equal(normalizeGallerySettings({ gridColumns: "10" }).gridColumns, 10);
    assert.equal(normalizeGallerySettings({ gridColumns: 40 }).gridColumns, 12);
    assert.equal(normalizeGallerySettings({ gridColumns: 1 }).gridColumns, 2);
    assert.deepEqual(LIMIT_OPTIONS, [50, 100, 200, 500]);
});

test("normalize never mutates its input", () => {
    const raw = { gridColumns: 4 };
    normalizeGallerySettings(raw);
    assert.deepEqual(raw, { gridColumns: 4 });
});

test("gridColumnsStyle produces an explicit grid template", () => {
    assert.equal(gridColumnsStyle(10), "repeat(10, minmax(0, 1fr))");
    assert.equal(gridColumnsStyle("6"), "repeat(6, minmax(0, 1fr))");
    assert.equal(gridColumnsStyle("x"), "repeat(8, minmax(0, 1fr))");
});

test("infinite scrolling is off by default and must be a boolean", () => {
    assert.equal(DEFAULT_SETTINGS.infiniteScroll, false);
    assert.equal(normalizeGallerySettings({ infiniteScroll: true }).infiniteScroll, true);
    assert.equal(normalizeGallerySettings({ infiniteScroll: "yes" }).infiniteScroll, false);
});