import json
import tempfile
import unittest
from pathlib import Path

from copienator import read_json
from copienator_gui.recorrection import prepare_selection_file


class RecorrectionFileTests(unittest.TestCase):
    def test_examples_are_inactive_and_opening_preserves_selection(self):
        with tempfile.TemporaryDirectory() as directory:
            root = Path(directory)
            path = prepare_selection_file(root)
            self.assertEqual(read_json(path), [])
            self.assertIn('// Une copie entière', path.read_text())
            selection = [["Copie46", ["II)9)"]]]
            path.write_text(json.dumps(selection))
            prepare_selection_file(root)
            self.assertEqual(read_json(path), selection)
            before = path.read_bytes()
            prepare_selection_file(root)
            self.assertEqual(path.read_bytes(), before)

    def test_comments_do_not_affect_strings_or_other_json_files(self):
        with tempfile.TemporaryDirectory() as directory:
            root = Path(directory)
            path = root / "refaire.json"
            path.write_text('// Example\n[["Copie01", ["a//b"]]]\n')
            self.assertEqual(read_json(path), [["Copie01", ["a//b"]]])
            other = root / "correction.json"
            other.write_text(path.read_text())
            with self.assertRaises(json.JSONDecodeError):
                read_json(other)