import json
import subprocess
from pathlib import Path

import pytest

from src.views import login


ROOT = Path(__file__).resolve().parents[1]
LOGIN_JS = ROOT / "frontend" / "login.js"


def test_rate_limited_login_disables_submit_and_counts_down():
    harness = f"""
const createLoginController = require({json.dumps(str(LOGIN_JS))});
const state = {{ reset: 0, interval: null }};
const status = {{ textContent: '' }};
const button = {{ disabled: false }};
const form = {{ reset: () => state.reset += 1 }};
const controller = createLoginController({{
  form, status, button,
  fetchImpl: async () => new Response(JSON.stringify({{ detail: 'Too many sign-in attempts' }}), {{ status: 429, headers: {{ 'Retry-After': '2' }} }}),
  location: {{ replace: () => {{}} }},
  setIntervalImpl: callback => {{ state.interval = callback; return 1; }},
  clearIntervalImpl: () => {{}},
}});
(async () => {{
  await controller.submit('never-store-this-token');
  state.initial = {{ disabled: button.disabled, status: status.textContent, reset: state.reset }};
  state.interval();
  state.afterTick = {{ disabled: button.disabled, status: status.textContent }};
  state.interval();
  state.finished = {{ disabled: button.disabled, status: status.textContent }};
  process.stdout.write(JSON.stringify(state));
}})().catch(error => {{ console.error(error); process.exit(1); }});
"""
    result = subprocess.run(
        ["node", "-e", harness], text=True, capture_output=True, check=True
    )
    state = json.loads(result.stdout)

    assert state["initial"] == {
        "disabled": True,
        "status": "Too many attempts. Try again in 2 seconds.",
        "reset": 1,
    }
    assert state["afterTick"]["disabled"] is True
    assert state["finished"] == {
        "disabled": False,
        "status": "You can try signing in again.",
    }


@pytest.mark.anyio
async def test_login_page_loads_rate_limit_controller():
    html = await login()

    assert '<script src="static/login.js"></script>' in html
    assert "main{box-sizing:border-box" in html