'use strict';

const test = require('node:test');
const assert = require('node:assert/strict');
const { run } = require('../src/cli');

class Sink {
  constructor() { this.chunks = []; }
  write(s) { this.chunks.push(s); }
  get text() { return this.chunks.join(''); }
}

test('encode: (0,12,1) prints 196 with trailing newline, exit 0', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['encode', '0', '12', '1'], { out, err });
  assert.equal(code, 0);
  assert.equal(out.text, '196\n');
  assert.equal(err.text, '');
});

test('encode: rotation defaults to 0', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['encode', '0', '12'], { out, err });
  assert.equal(code, 0);
  assert.equal(out.text, '192\n');
});

test('encode: no args prints usage to stderr, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['encode'], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /usage: sporel-mapper encode/);
});

test('encode: too many args prints usage, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['encode', '0', '0', '0', '0'], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /usage/);
});

test('encode: out-of-range tile prints error, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['encode', '0', '99999999', '0'], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /error: tile/);
});

test('encode: non-integer arg prints error, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['encode', '0', 'abc', '0'], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /error/i);
});