'use strict';

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

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

const FIX_MAP = path.join(__dirname, 'fixtures', 'maps', 'inspect_sample.map.json');
const FIX_ATLAS = path.join(__dirname, 'fixtures', 'atlases');

test('inspect: prints report to stdout, exit 0', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['inspect', FIX_MAP], { out, err });
  assert.equal(code, 0, err.text);
  assert.match(out.text, /Map: inspect_sample/);
  assert.match(out.text, /Roof: 4 cells flagged/);
});

test('inspect: --atlas-dir enables name resolution', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['inspect', FIX_MAP, '--atlas-dir', FIX_ATLAS], { out, err });
  assert.equal(code, 0);
  assert.match(out.text, /atlas_a:grass/);
});

test('inspect: missing positional arg prints usage, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['inspect'], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /usage: sporel-mapper inspect/);
});

test('inspect: missing map file prints error, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  const code = run(['inspect', '/no/such/map.json'], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /error: cannot read/);
});

test('inspect: invalid JSON prints error, exit 1', () => {
  const out = new Sink(); const err = new Sink();
  // Use a non-JSON file as bogus input
  const reallyNotJson = path.join(__dirname, '..', 'src', 'cli.js');
  const code = run(['inspect', reallyNotJson], { out, err });
  assert.equal(code, 1);
  assert.match(err.text, /error/i);
});