import { describe, expect, it } from 'vitest';
import { API_ENDPOINT, dataPath, moveOldStoredKeys } from '../../src/core/site';

function memoryStore(initial: Record<string, string>) {
  const items = new Map(Object.entries(initial));
  return {
    items,
    get length() {
      return items.size;
    },
    key: (i: number) => [...items.keys()][i] ?? null,
    getItem: (key: string) => items.get(key) ?? null,
    setItem: (key: string, value: string) => void items.set(key, value),
    removeItem: (key: string) => void items.delete(key),
  };
}

describe('site', () => {
  it('serves the API and the data files under /feuerwerk/', () => {
    expect(API_ENDPOINT).toBe('/feuerwerk/api/index.php');
    expect(dataPath('textures')).toBe('/feuerwerk/data/textures');
  });

  it('moves the keys stored under the old name and leaves the others alone', () => {
    const store = memoryStore({
      'game-maker.panel-sizes': '{"left":300}',
      'game-maker.saves.p1.Savegame': '{"Lives":2}',
      'other-site.key': 'x',
    });
    expect(moveOldStoredKeys(store)).toBe(2);
    expect(Object.fromEntries(store.items)).toEqual({
      'feuerwerk.panel-sizes': '{"left":300}',
      'feuerwerk.saves.p1.Savegame': '{"Lives":2}',
      'other-site.key': 'x',
    });
  });

  it('keeps a value the new name already has and drops the old one', () => {
    const store = memoryStore({ 'game-maker.general-settings': 'old', 'feuerwerk.general-settings': 'new' });
    expect(moveOldStoredKeys(store)).toBe(0);
    expect(Object.fromEntries(store.items)).toEqual({ 'feuerwerk.general-settings': 'new' });
  });

  it('does nothing the second time', () => {
    const store = memoryStore({ 'game-maker.folded-sections': '[]' });
    moveOldStoredKeys(store);
    expect(moveOldStoredKeys(store)).toBe(0);
    expect(Object.fromEntries(store.items)).toEqual({ 'feuerwerk.folded-sections': '[]' });
  });
});