import { defaultProject, fireplace, rectangle } from '../src/lib/defaults';
import type { Project, Room } from '../src/lib/types';
import angled from '../tests/fixtures/angled-room.json';
import angledF8 from '../tests/fixtures/angled-room-f8.json';

export interface PlannerCase {
  name: string;
  project: Project;
}

const room = (width: number, height: number, id = 'room-1'): Room => {
  const result = rectangle(id, id, width, height);
  result.walls.forEach((wall) => (wall.doors = []));
  return result;
};

export function plannerCases(): PlannerCase[] {
  const cases: PlannerCase[] = [];
  const add = (name: string, rooms: Room[], changes: Partial<Project['flooring']> = {}) => {
    const project = defaultProject();
    project.rooms = rooms;
    project.flooring = { ...project.flooring, pattern: 'random', ...changes };
    cases.push({ name, project });
  };
  for (const pattern of ['brick', 'random'] as const) {
    add(`rectangle-${pattern}`, [rectangle()], { pattern });
    add(`fireplace-${pattern}`, [fireplace('room-2', 'Fireplace')], { pattern });
    add(`rotated-${pattern}`, [{ ...fireplace('room-2', 'Fireplace'), direction: 90 }], {
      pattern,
    });
  }
  // Fixed arithmetic sequences cover a range of remainders without runtime randomness.
  for (let i = 0; i < 45; i++) {
    add(`rectangle-${i + 1}`, [room(1620 + ((i * 733) % 3800), 620 + ((i * 379) % 1900))], {
      width: 200,
    });
  }
  for (let i = 0; i < 12; i++) {
    const rooms = [
      room(1320 + ((i * 271) % 1900), 620 + ((i * 317) % 1200), 'r0'),
      room(1420 + ((i * 653) % 2100), 820 + ((i * 211) % 1200), 'r1'),
    ];
    add(`two-rooms-${i + 1}`, rooms, { width: 200 });
    add(`two-rooms-reversed-${i + 1}`, [...rooms].reverse(), { width: 200 });
  }
  add('balanced-edges', [room(4020, 2050)], { width: 200 });
  add('tight-offsets', [room(4020, 2220)], { minOffset: 250, maxOffset: 450 });
  add('exact-offset', [room(4020, 2220)], { minOffset: 400, maxOffset: 400 });
  add('forced-alternation', [room(2420, 1620)], { width: 200, minLength: 600 });
  add('fractional-stock', [room(620, 420, 'r0'), room(617.2, 420, 'r1')], {
    length: 1200.2,
    width: 200,
  });
  add('large-rectangle', [room(14020, 8020)]);
  add('long-room', [room(30020, 1820)]);
  cases.push(
    {
      name: 'angled',
      project: {
        ...angled.project,
        flooring: { ...defaultProject().flooring, ...angled.project.flooring },
      } as Project,
    },
    {
      name: 'angled-f8',
      project: {
        ...angledF8.project,
        flooring: { ...defaultProject().flooring, ...angledF8.project.flooring },
      } as Project,
    },
  );
  return cases;
}