"""
E2E connect tests for agents_dashboard against the live backend.

Runs the deployed .exe with --connect-test, which exercises the SAME
fn_http code path the GUI uses (curl spawn via CreateProcessW on Windows).
Verifies:

  * /health   → 200 sin auth
  * /agents   → 401 sin Bearer
  * /agents   → 200 + JSON array con Bearer

Skips if:
  * AGENTS_API_KEY env var missing (run with `pass agentes/api-key`)
  * Deployed exe not found

Run from repo root:
    AGENTS_API_KEY=$(pass agentes/api-key) \\
        python3 -m pytest -x -q projects/element_agents/apps/agents_dashboard/tests/test_connect_e2e.py
"""
from __future__ import annotations

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

import pytest

DEFAULT_EXE = Path("/mnt/c/Users/lucas/Desktop/apps/agents_dashboard/agents_dashboard.exe")
DEFAULT_URL = "https://agents.organic-machine.com"


def _exe() -> Path:
    p = Path(os.environ.get("AGENTS_DASHBOARD_EXE", DEFAULT_EXE))
    if not p.exists():
        pytest.skip(f"deployed exe not found: {p}")
    return p


def _url() -> str:
    return os.environ.get("AGENTS_DASHBOARD_URL", DEFAULT_URL)


def _apikey() -> str:
    k = os.environ.get("AGENTS_API_KEY", "").strip()
    if not k:
        pytest.skip("AGENTS_API_KEY env var missing (try `pass agentes/api-key`)")
    return k


def _run_connect_test(url: str, env: dict | None = None) -> subprocess.CompletedProcess:
    """Invoke .exe --connect-test with WSLENV so env propagates to Windows binary."""
    full_env = os.environ.copy()
    if env:
        full_env.update(env)
    # WSLENV: comma/colon-separated list of env names to forward to Win32
    keep = full_env.get("WSLENV", "")
    add = "AGENTS_API_KEY"
    full_env["WSLENV"] = f"{keep}:{add}" if keep else add
    return subprocess.run(
        [str(_exe()), "--connect-test", url],
        capture_output=True,
        text=True,
        timeout=30,
        env=full_env,
    )


# ---------------------------------------------------------------------------
# Tests
# ---------------------------------------------------------------------------


def test_connect_succeeds_with_valid_apikey():
    """OK <N> on stdout, exit 0, when env + URL + apikey are valid."""
    _apikey()  # skip if missing
    r = _run_connect_test(_url())
    assert r.returncode == 0, f"exit={r.returncode}\nstdout={r.stdout}\nstderr={r.stderr}"
    assert r.stdout.startswith("OK "), f"stdout=[{r.stdout!r}]"
    n = int(r.stdout.strip().split()[1])
    assert n > 0, f"expected at least 1 agent, got {n}"


def test_connect_fails_without_apikey():
    """FAIL on stderr, exit 1, when AGENTS_API_KEY is empty."""
    # Force-empty AGENTS_API_KEY; bypass WSLENV by clearing it too.
    r = subprocess.run(
        [str(_exe()), "--connect-test", _url()],
        capture_output=True,
        text=True,
        timeout=30,
        env={**os.environ, "AGENTS_API_KEY": "", "WSLENV": "AGENTS_API_KEY"},
    )
    assert r.returncode != 0
    assert "AGENTS_API_KEY" in r.stderr, f"stderr=[{r.stderr!r}]"


def test_connect_fails_on_bad_host():
    """Transport-level failure on unresolvable host."""
    _apikey()
    r = _run_connect_test("https://this-host-does-not-exist-xyzzy.invalid")
    assert r.returncode != 0
    assert "FAIL" in r.stderr, f"stderr=[{r.stderr!r}]"


def test_count_matches_direct_curl():
    """N agents returned by the .exe must equal what /agents returns via curl."""
    apikey = _apikey()
    # Direct curl from WSL via Windows curl.exe (matches what fn_http uses).
    curl_bin = shutil.which("curl.exe") or "/mnt/c/Windows/System32/curl.exe"
    direct = subprocess.run(
        [
            curl_bin, "-fsS",
            "-H", f"Authorization: Bearer {apikey}",
            f"{_url()}/agents",
        ],
        capture_output=True, text=True, timeout=15,
    )
    assert direct.returncode == 0, f"direct curl failed: {direct.stderr}"
    expected = len(json.loads(direct.stdout))

    r = _run_connect_test(_url())
    assert r.returncode == 0
    got = int(r.stdout.strip().split()[1])
    assert got == expected, f"exe says {got} agents, curl says {expected}"


def test_url_trim_robust_to_whitespace():
    """URL with leading/trailing whitespace + CR/LF must still connect."""
    _apikey()
    # Wrap URL with whitespace + CRLF; trim_url() in main.cpp must strip.
    url = "  \r\n " + _url() + " \r\n\t"
    r = _run_connect_test(url)
    assert r.returncode == 0, f"trim failed: stderr={r.stderr!r}"
    assert r.stdout.startswith("OK ")