import runpy
from pathlib import Path
import unittest
from urllib.parse import urlencode
launcher=runpy.run_path(str(Path(__file__).resolve().parents[1]/'scripts/operator-browser/xdg-open'))
allowed=launcher['allowed']
launch_argv=launcher['launch_argv']
class BrowserBoundary(unittest.TestCase):
    def test_approved_flow(self):
        self.assertTrue(allowed('https://kc.coulomb.social/authorize?'+urlencode({'redirect_uri':'http://localhost:8250/oidc/callback','state':'test'})))
    def test_other_destination_rejected(self):
        for host in ['evil.example','kc.coulomb.social.evil.example','user@kc.coulomb.social']:
            self.assertFalse(allowed('https://'+host+'/?'+urlencode({'redirect_uri':'http://localhost:8250/oidc/callback'})))
    def test_unapproved_callback_rejected(self):
        self.assertFalse(allowed('https://kc.coulomb.social/?'+urlencode({'redirect_uri':'https://evil.example'})))
    def test_duplicate_callback_rejected(self):
        self.assertFalse(allowed('https://kc.coulomb.social/?redirect_uri=http://localhost:8250/oidc/callback&redirect_uri=https://evil.example'))
    def test_launch_uses_empty_profile(self):
        url='https://kc.coulomb.social/authorize?'+urlencode({'redirect_uri':'http://localhost:8250/oidc/callback'})
        browser='/cache/ms-playwright/chromium-1234/chrome-linux64/chrome'
        argv=launch_argv(browser, '/tmp/fresh-profile', url)
        self.assertEqual(argv[0], browser)
        self.assertIn('--user-data-dir=/tmp/fresh-profile', argv)
        self.assertEqual(argv[-1], url)
        self.assertNotIn('--headless', argv)
        joined=' '.join(argv)
        for banned in ('explorer.exe', 'powershell', 'msedge', 'firefox', '/mnt/c/'):
            self.assertNotIn(banned, joined)
    def test_contained_home_does_not_move_the_browser_cache(self):
        self.assertEqual(
            launcher["playwright_cache"]("/tmp/warden-session", "/home/operator"),
            Path("/home/operator/.cache/ms-playwright"),
        )

    def test_chromium_comes_from_the_playwright_pin(self):
        import json
        import tempfile
        from pathlib import Path
        with tempfile.TemporaryDirectory() as raw:
            root=Path(raw)
            spec=root/'browsers.json'
            spec.write_text(json.dumps({'browsers':[{'name':'chromium','revision':'1234'},{'name':'firefox','revision':'1538'}]}))
            binary=root/'chromium-1234'/'chrome-linux64'/'chrome'
            binary.parent.mkdir(parents=True)
            binary.write_text('')
            binary.chmod(0o755)
            self.assertEqual(launcher['chromium_executable'](spec, root), str(binary))
            self.assertEqual(launcher['chromium_executable'](root/'missing.json', root), '')
    def test_wsl_cmd_start_is_the_login_opener(self):
        url='https://kc.coulomb.social/authorize?'+urlencode({'redirect_uri':'http://127.0.0.1:8250/oidc/callback','state':'test'})
        escaped=url.replace('&','^&')
        self.assertEqual(launcher['classify_cmd'](['/c','start',escaped]), ('open', url))
        self.assertEqual(launcher['classify_cmd'](['/c','start','https://evil.example/']), ('reject', ''))
        self.assertEqual(launcher['classify_cmd'](['/c','dir']), ('delegate', ''))