"""Admin panel (/admin) integration tests: auth gate, create, edit, ban.

Run against the Docker Compose infrastructure (`docker compose up -d`).
Covers the server-rendered FastAPI + Jinja2 + HTMX panel mounted in the api.
"""

from __future__ import annotations

import uuid

import httpx
import pytest
from sqlalchemy import text

from contract_check.core.security.passwords import hash_password

pytestmark = pytest.mark.integration


async def _seed_user(
    db_session,
    *,
    email: str,
    password: str,
    role: str = "user",
    is_active: bool = True,
    credits_left: int = 0,
) -> str:
    """Insert a user and return its id (cleaned up by the per-test session rollback
    semantics; we also delete explicitly to keep tables tidy across tests)."""
    result = await db_session.execute(
        text(
            "INSERT INTO users (email, password_hash, role, is_active, credits_left) "
            "VALUES (:e, :p, :r, :a, :c) RETURNING id"
        ),
        {
            "e": email,
            "p": hash_password(password),
            "r": role,
            "a": is_active,
            "c": credits_left,
        },
    )
    await db_session.commit()
    user_id = result.first()[0]
    return str(user_id)


async def _login_as(client: httpx.AsyncClient, email: str, password: str) -> httpx.Response:
    return await client.post(
        "/admin/login", data={"email": email, "password": password}, follow_redirects=False
    )


async def test_admin_login_sets_cookie_for_admin(client: httpx.AsyncClient, db_session) -> None:
    email = f"admin-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=email, password="adminpass-123", role="admin")

    r = await _login_as(client, email, "adminpass-123")
    assert r.status_code == 303
    assert r.headers["location"] == "/admin/users"
    assert "cc_admin_token" in r.cookies


async def test_admin_login_rejects_non_admin_role(client: httpx.AsyncClient, db_session) -> None:
    email = f"user-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=email, password="userpass-123", role="user")

    r = await _login_as(client, email, "userpass-123")
    assert r.status_code == 303
    assert "forbidden" in r.headers["location"]
    assert "cc_admin_token" not in r.cookies


async def test_admin_routes_redirect_without_session(client: httpx.AsyncClient) -> None:
    r = await client.get("/admin/users", follow_redirects=False)
    assert r.status_code == 303
    assert r.headers["location"].startswith("/admin/login")


async def test_admin_creates_user_and_redirects_to_detail(
    client: httpx.AsyncClient, db_session
) -> None:
    admin_email = f"admin-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=admin_email, password="adminpass-123", role="admin")
    await _login_as(client, admin_email, "adminpass-123")

    new_email = f"new-{uuid.uuid4().hex[:8]}@test.local"
    r = await client.post(
        "/admin/users",
        data={
            "email": new_email,
            "password": "newpass-1234",
            "role": "admin",
            "credits_left": "7",
            "is_active": "on",
        },
        follow_redirects=False,
    )
    assert r.status_code == 303
    location = r.headers["location"]
    assert location.startswith("/admin/users/")

    # Persisted with the chosen role + credits.
    row = (
        await db_session.execute(
            text(
                "SELECT credits_left, role, is_active, password_hash IS NOT NULL "
                "FROM users WHERE email = :e"
            ),
            {"e": new_email},
        )
    ).first()
    assert row is not None
    assert row[0] == 7
    assert row[1] == "admin"
    assert row[2] is True
    assert row[3] is True

    # Detail page renders the created user.
    detail = await client.get(location, follow_redirects=False)
    assert detail.status_code == 200
    assert new_email in detail.text


async def test_admin_create_rejects_duplicate_email(client: httpx.AsyncClient, db_session) -> None:
    admin_email = f"admin-{uuid.uuid4().hex[:8]}@test.local"
    existing = f"dup-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=admin_email, password="adminpass-123", role="admin")
    await _seed_user(db_session, email=existing, password="somepass-123")
    await _login_as(client, admin_email, "adminpass-123")

    r = await client.post(
        "/admin/users",
        data={"email": existing, "password": "anotherpass-123"},
        follow_redirects=False,
    )
    assert r.status_code == 200  # form re-rendered, not a redirect/5xx
    assert "уже существует" in r.text


async def test_admin_create_rejects_short_password(client: httpx.AsyncClient, db_session) -> None:
    admin_email = f"admin-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=admin_email, password="adminpass-123", role="admin")
    await _login_as(client, admin_email, "adminpass-123")

    r = await client.post(
        "/admin/users",
        data={"email": f"short-{uuid.uuid4().hex[:8]}@test.local", "password": "x"},
        follow_redirects=False,
    )
    assert r.status_code == 200
    assert "Пароль короче" in r.text


async def test_admin_new_form_resolves_before_dynamic_route(
    client: httpx.AsyncClient, db_session
) -> None:
    """`/admin/users/new` must hit the form route, not be parsed as {user_id}."""
    admin_email = f"admin-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=admin_email, password="adminpass-123", role="admin")
    await _login_as(client, admin_email, "adminpass-123")

    r = await client.get("/admin/users/new", follow_redirects=False)
    assert r.status_code == 200
    assert "Новый пользователь" in r.text


async def test_admin_toggle_active_bans_user(client: httpx.AsyncClient, db_session) -> None:
    admin_email = f"admin-{uuid.uuid4().hex[:8]}@test.local"
    await _seed_user(db_session, email=admin_email, password="adminpass-123", role="admin")
    await _login_as(client, admin_email, "adminpass-123")

    target_email = f"ban-{uuid.uuid4().hex[:8]}@test.local"
    target_id = await _seed_user(db_session, email=target_email, password="targetpass-12")

    r = await client.post(
        f"/admin/users/{target_id}/toggle-active",
        headers={"hx-request": "true"},
        follow_redirects=False,
    )
    assert r.status_code == 200

    is_active = (
        await db_session.execute(
            text("SELECT is_active FROM users WHERE id = :u"), {"u": target_id}
        )
    ).scalar_one()
    assert is_active is False