"""The personal configuration controls both annotation generators."""
import os
from pathlib import Path
import subprocess
import sys
import tempfile
import unittest


class AnnotationHeightConfigTests(unittest.TestCase):
    def load_generators(self, setting, attribute="MAX_HEIGHT_PX"):
        with tempfile.TemporaryDirectory() as directory:
            config = Path(directory) / "config.py"
            config.write_text("from default_config import *\n" + setting, encoding="utf-8")
            return subprocess.run(
                [sys.executable, "-c",
                 "from copienator.commands import annotating_by_label as grouped; "
                 "from copienator.commands import annotating_with_checks as checks; "
                 f"print(grouped.annotation_limits()[{0 if attribute == 'MAX_HEIGHT_PX' else 1}], checks.annotation_limits()[{0 if attribute == 'MAX_HEIGHT_PX' else 1}])"],
                cwd=Path(__file__).resolve().parents[1],
                env={**os.environ, "COPIENATOR_CONFIG": str(config)},
                capture_output=True, text=True, check=False,
            )

    def test_custom_height_reaches_both_generators(self):
        result = self.load_generators("ANNOTATION_MAX_HEIGHT_PX = 16000\n")
        self.assertEqual(result.returncode, 0, result.stderr)
        self.assertEqual(result.stdout.strip(), "16000 16000")

    def test_older_configuration_keeps_current_default(self):
        result = self.load_generators("del ANNOTATION_MAX_HEIGHT_PX\n")
        self.assertEqual(result.returncode, 0, result.stderr)
        self.assertEqual(result.stdout.strip(), "33000 33000")

    def test_invalid_heights_are_rejected(self):
        for value in ("0", "-1", "1.5", "True", "'32000'"):
            with self.subTest(value=value):
                result = self.load_generators(f"ANNOTATION_MAX_HEIGHT_PX = {value}\n")
                self.assertNotEqual(result.returncode, 0)
                self.assertIn("ANNOTATION_MAX_HEIGHT_PX must be a positive integer", result.stderr)

    def test_custom_pixel_limit_reaches_both_generators(self):
        result = self.load_generators("ANNOTATION_MAX_PIXELS = 50000000\n", "MAX_PIXELS")
        self.assertEqual(result.returncode, 0, result.stderr)
        self.assertEqual(result.stdout.strip(), "50000000 50000000")

    def test_older_configuration_keeps_default_pixel_limit(self):
        result = self.load_generators("del ANNOTATION_MAX_PIXELS\n", "MAX_PIXELS")
        self.assertEqual(result.returncode, 0, result.stderr)
        self.assertEqual(result.stdout.strip(), "67108864 67108864")

    def test_invalid_pixel_limits_are_rejected(self):
        for value in ("0", "-1", "1.5", "True", "'67108864'"):
            with self.subTest(value=value):
                result = self.load_generators(f"ANNOTATION_MAX_PIXELS = {value}\n")
                self.assertNotEqual(result.returncode, 0)
                self.assertIn("ANNOTATION_MAX_PIXELS must be a positive integer", result.stderr)