from __future__ import annotations

from pathlib import Path

from fastapi.testclient import TestClient

from app.main import create_app
from app.services.auth_service import AuthService


def auth_client(monkeypatch) -> TestClient:
    password_hash = AuthService.hash_password(
        "correct horse battery staple",
        salt=b"geointel-test-salt",
        iterations=100_000,
    )
    monkeypatch.setenv("GEOINTEL_AUTH_ENABLED", "true")
    monkeypatch.setenv("GEOINTEL_AUTH_USERNAME", "operator")
    monkeypatch.setenv("GEOINTEL_AUTH_PASSWORD_HASH", password_hash)
    monkeypatch.setenv("GEOINTEL_AUTH_SESSION_SECRET", "test-session-secret-that-is-long-enough")
    return TestClient(create_app())


def test_auth_session_and_health_are_public_but_api_is_protected(monkeypatch) -> None:
    client = auth_client(monkeypatch)

    session = client.get("/api/v1/auth/session")
    protected = client.get("/api/v1/protected-probe")
    health = client.get("/health/live")

    assert session.status_code == 200
    assert session.json()["data"] == {
        "authentication_required": True,
        "authenticated": False,
        "username": None,
        "expires_at": None,
    }
    assert protected.status_code == 401
    assert protected.json()["error"] == "AUTHENTICATION_REQUIRED"
    assert health.status_code == 200


def test_login_uses_http_only_session_cookie_and_logout_revokes_browser_access(monkeypatch) -> None:
    client = auth_client(monkeypatch)

    invalid = client.post(
        "/api/v1/auth/login",
        json={"username": "operator", "password": "wrong"},
    )
    login = client.post(
        "/api/v1/auth/login",
        json={"username": "operator", "password": "correct horse battery staple"},
    )
    authenticated = client.get("/api/v1/auth/session")
    protected_after_login = client.get("/api/v1/protected-probe")
    logout = client.post("/api/v1/auth/logout")
    protected_after_logout = client.get("/api/v1/protected-probe")

    assert invalid.status_code == 401
    assert invalid.json()["error"] == "INVALID_CREDENTIALS"
    assert login.status_code == 200
    assert login.json()["data"]["username"] == "operator"
    cookie = login.headers["set-cookie"].lower()
    assert "httponly" in cookie
    assert "samesite=strict" in cookie
    assert authenticated.json()["data"]["authenticated"] is True
    assert protected_after_login.status_code == 404
    assert logout.status_code == 200
    assert protected_after_logout.status_code == 401


def test_password_hash_and_session_signatures_fail_closed(monkeypatch) -> None:
    client = auth_client(monkeypatch)
    login = client.post(
        "/api/v1/auth/login",
        json={"username": "operator", "password": "correct horse battery staple"},
    )
    token = login.cookies.get("geointel_session")

    assert token
    client.cookies.set("geointel_session", f"{token}tampered")
    session = client.get("/api/v1/auth/session")

    assert session.status_code == 200
    assert session.json()["data"]["authenticated"] is False


def test_unraid_runtime_carries_only_hashed_operator_credentials() -> None:
    root = Path(__file__).resolve().parents[2]
    runner = (root / "deploy/unraid/run-dockerman-container.sh").read_text(encoding="utf-8")
    example = (root / "deploy/unraid/geointel.env.example").read_text(encoding="utf-8")
    browser_smoke = (root / "scripts/verify_browser_runtime.sh").read_text(encoding="utf-8")

    assert '-e GEOINTEL_AUTH_PASSWORD_HASH="$GEOINTEL_AUTH_PASSWORD_HASH"' in runner
    assert "GEOINTEL_AUTH_PASSWORD_HASH=" in example
    assert "GEOINTEL_AUTH_PASSWORD=" not in runner
    assert "/api/v1/auth/session" in browser_smoke