import json
import os
import shutil
import subprocess
import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "scripts"))

from lib.bird_x import parse_bird_response


REPO_ROOT = Path(__file__).resolve().parents[1]
VENDORED_BIRD = REPO_ROOT / "scripts" / "lib" / "vendor" / "bird-search" / "bird-search.mjs"


class TestBirdXEngagementZero(unittest.TestCase):
    def test_zero_likes_preserved(self):
        tweets = [
            {
                "id": "1",
                "text": "test",
                "permanent_url": "https://x.com/u/status/1",
                "likeCount": 0,
                "retweetCount": 5,
            }
        ]
        items = parse_bird_response(tweets, "test query")
        self.assertEqual(0, items[0]["engagement"]["likes"])
        self.assertEqual(5, items[0]["engagement"]["reposts"])


@unittest.skipUnless(shutil.which("node"), "node is required for vendored Bird tests")
class TestVendoredBirdRuntime(unittest.TestCase):
    def test_check_uses_env_credentials_without_browser_cookie_dependency(self):
        env = os.environ.copy()
        env["AUTH_TOKEN"] = "dummy-auth"
        env["CT0"] = "dummy-ct0"

        result = subprocess.run(
            ["node", str(VENDORED_BIRD), "--check"],
            cwd=REPO_ROOT,
            env=env,
            capture_output=True,
            text=True,
            check=False,
        )

        self.assertEqual(0, result.returncode, result.stderr)
        payload = json.loads(result.stdout)
        self.assertTrue(payload["authenticated"])
        self.assertEqual("env AUTH_TOKEN", payload["source"])

    def test_check_with_browser_lookup_disabled_returns_json_warnings(self):
        env = os.environ.copy()
        env.pop("AUTH_TOKEN", None)
        env.pop("CT0", None)
        env["BIRD_DISABLE_BROWSER_COOKIES"] = "1"

        result = subprocess.run(
            ["node", str(VENDORED_BIRD), "--check"],
            cwd=REPO_ROOT,
            env=env,
            capture_output=True,
            text=True,
            check=False,
        )

        self.assertEqual(1, result.returncode, result.stderr)
        payload = json.loads(result.stdout)
        self.assertFalse(payload["authenticated"])
        self.assertTrue(payload["warnings"])
        self.assertIn("Missing auth_token", " ".join(payload["warnings"]))

    def test_none_likes_when_missing(self):
        tweets = [
            {
                "id": "1",
                "text": "test tweet with no engagement fields",
                "permanent_url": "https://x.com/u/status/1",
                # no likeCount, like_count, or favorite_count
            }
        ]
        items = parse_bird_response(tweets, "test query")
        self.assertIsNone(items[0]["engagement"]["likes"])

    def test_fallback_to_second_key(self):
        tweets = [
            {
                "id": "1",
                "text": "test",
                "permanent_url": "https://x.com/u/status/1",
                "like_count": 7,
            }
        ]
        items = parse_bird_response(tweets, "test query")
        self.assertEqual(7, items[0]["engagement"]["likes"])

    def test_zero_does_not_fall_through(self):
        """likeCount=0 should not fall through to like_count=10."""
        tweets = [
            {
                "id": "1",
                "text": "test",
                "permanent_url": "https://x.com/u/status/1",
                "likeCount": 0,
                "like_count": 10,
            }
        ]
        items = parse_bird_response(tweets, "test query")
        self.assertEqual(0, items[0]["engagement"]["likes"])


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