import json
import unittest

from arr_web.app import PortalApplication
from arr_web.preview import ReadOnlyPreview


class PreviewTests(unittest.TestCase):
    def setUp(self):
        self.preview = ReadOnlyPreview()

    def test_actual_assets_and_explicit_preview_label(self):
        page = self.preview.handle("GET", "/", {})
        self.assertEqual(page.status, 200)
        self.assertIn("本地只读预览", page.body.decode())
        self.assertIn(b'id="arr-download-date"', page.body)
        for path, content_type in (
            ("/assets/styles.css", "text/css"),
            ("/assets/preview.css", "text/css"),
            ("/assets/app.js", "text/javascript"),
            ("/assets/i18n.js", "text/javascript"),
        ):
            with self.subTest(path=path):
                response = self.preview.handle("GET", path, {})
                self.assertEqual(response.status, 200)
                self.assertTrue(response.content_type.startswith(content_type))

    def test_preview_services_are_unavailable_and_history_empty(self):
        def get(path):
            response = self.preview.handle("GET", path, {})
            self.assertEqual(response.status, 200)
            return json.loads(response.body)["data"]

        health = get("/api/health")
        for key in ("database_ready", "processing_ready", "monthly_ready", "arr_download_ready"):
            self.assertFalse(health[key])
        self.assertFalse(get("/api/arr-downloads")["ready"])
        self.assertEqual(get("/api/jobs?month=2026-09"), [])
        self.assertEqual(get("/api/months"), [])

    def test_all_mutations_blocked_before_dispatch(self):
        for method in ("POST", "PATCH", "DELETE", "PUT"):
            for path in ("/api/login", "/api/jobs", "/api/arr-downloads", "/api/logout"):
                with self.subTest(method=method, path=path):
                    response = self.preview.handle(method, path, {}, b"{}")
                    self.assertEqual(response.status, 405)
                    self.assertEqual(json.loads(response.body)["error"]["code"], "PREVIEW_READ_ONLY")

    def test_production_still_requires_authentication(self):
        self.assertEqual(PortalApplication().handle("GET", "/api/session", {}).status, 401)
        preview_session = self.preview.handle("GET", "/api/session", {})
        self.assertEqual(preview_session.status, 200)
        self.assertNotIn("Set-Cookie", preview_session.headers)
        self.assertEqual(len(self.preview._sessions._sessions), 0)


if __name__ == "__main__":
    unittest.main()