"""Automated checks for Proxy God core logic (no GUI). Run: python -m unittest discover -s tests -v"""
from __future__ import annotations

import asyncio
import unittest

from proxy_chain_manager.config import (
    Settings,
    merge_proxy_credentials,
    normalize_proxy_url,
    redact_proxy_url,
    sanitize_settings,
    split_proxy_for_edit,
)
from proxy_chain_manager.fetcher import fetch_proxy_json, normalize_entries
from proxy_chain_manager.validator import (
    check_chain_exit_ip,
    get_direct_ip,
    validate_proxies,
)


class TestConfig(unittest.TestCase):
    def test_normalize_proxy_url(self) -> None:
        self.assertEqual(normalize_proxy_url(""), "")
        self.assertEqual(normalize_proxy_url("1.2.3.4:8080"), "http://1.2.3.4:8080")
        self.assertEqual(normalize_proxy_url("socks5://x:1"), "socks5://x:1")

    def test_merge_split_proxy_auth(self) -> None:
        merged = merge_proxy_credentials("http://1.2.3.4:8080", "user", "p:ass")
        self.assertIn("user", merged)
        self.assertIn("p%3Aass", merged)
        base, u, pw = split_proxy_for_edit(merged)
        self.assertEqual(base, "http://1.2.3.4:8080")
        self.assertEqual(u, "user")
        self.assertEqual(pw, "p:ass")

    def test_merge_preserves_embedded_auth_when_fields_empty(self) -> None:
        raw = normalize_proxy_url("http://x:y@9.9.9.9:12")
        self.assertEqual(merge_proxy_credentials(raw, "", ""), raw)

    def test_redact_proxy_url(self) -> None:
        r = redact_proxy_url("http://alice:secret@proxy.example:8888")
        self.assertIn("***:***@", r)
        self.assertIn("proxy.example", r)
        self.assertNotIn("secret", r)
        self.assertNotIn("alice", r)

    def test_sanitize_clamps_extremes(self) -> None:
        s = Settings(
            chain_length=0,
            health_check_seconds=999999,
            full_refresh_seconds=10,
            validation_timeout_seconds=900.0,
        )
        s, changed = sanitize_settings(s)
        self.assertTrue(changed)
        self.assertEqual(s.chain_length, 1)
        self.assertEqual(s.health_check_seconds, 3600)
        self.assertEqual(s.full_refresh_seconds, 60)
        self.assertEqual(s.validation_timeout_seconds, 120.0)


class TestFetcher(unittest.TestCase):
    def test_normalize_entries_empty(self) -> None:
        self.assertEqual(normalize_entries([], False), [])

    def test_fetch_smoke(self) -> None:
        """One real HTTP GET — may fail offline; then skip assertion."""
        try:
            rows = fetch_proxy_json(
                "https://cdn.jsdelivr.net/gh/proxifly/free-proxy-list@main/proxies/protocols/http/data.json",
                timeout=25.0,
            )
        except Exception:
            self.skipTest("network unavailable")
        self.assertIsInstance(rows, list)
        if rows:
            self.assertTrue(isinstance(rows[0], dict))


class TestValidator(unittest.TestCase):
    def test_validate_empty_list_returns_fast(self) -> None:
        async def run() -> list[str]:
            return await validate_proxies(
                [],
                "https://api.ipify.org?format=json",
                8,
                5.0,
            )

        self.assertEqual(asyncio.run(run()), [])

    def test_validate_dead_proxy_fast(self) -> None:
        async def run() -> list[str]:
            return await validate_proxies(
                ["http://127.0.0.1:1"],
                "https://api.ipify.org?format=json",
                1,
                3.0,
            )

        self.assertEqual(asyncio.run(run()), [])

    def test_get_direct_ip_network(self) -> None:
        async def run() -> str | None:
            return await get_direct_ip("https://api.ipify.org?format=json", 12.0)

        ip = asyncio.run(run())
        if ip is None:
            self.skipTest("could not reach ipify (offline or blocked)")
        self.assertGreater(len(ip), 4)

    def test_check_chain_exit_ip_invalid_proxy_quick(self) -> None:
        async def run() -> str | None:
            return await check_chain_exit_ip(
                "http://127.0.0.1:1",
                "https://api.ipify.org?format=json",
                8.0,
            )

        self.assertIsNone(asyncio.run(run()))


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