"""Smoke tests for the FastAPI surface area.

Run:
  pytest tests/ -v

External services stays behind affordances:
  * `pytest -m "not supabase and not nvidia"` runs offline smoke only.
"""

from __future__ import annotations

import io

import pytest


pytestmark = pytest.mark.asyncio


# ---- /health & /  ----

def test_health(fastapi_client):
    r = fastapi_client.get("/health")
    assert r.status_code == 200, r.text
    body = r.json()
    assert body["status"] == "ok"
    assert body["service"] == "virtual-foreman-backend"


def test_root_lists_endpoints(fastapi_client):
    r = fastapi_client.get("/")
    assert r.status_code == 200
    body = r.json()
    assert "POST   /projects" in body["endpoints"]
    assert "POST   /work/infer" in body["endpoints"]
    assert "POST   /work/blueprint" in body["endpoints"]
    assert "POST   /documents/render" in body["endpoints"]
    assert "GET    /inference/history" in body["endpoints"]


def test_request_id_header_echoed(fastapi_client):
    r = fastapi_client.get("/health", headers={"X-Request-ID": "rid-abc-123"})
    assert r.headers.get("X-Request-ID") == "rid-abc-123"


def test_request_id_autogenerated_when_missing(fastapi_client):
    r = fastapi_client.get("/health")
    rid = r.headers.get("X-Request-ID")
    assert rid is not None and len(rid) > 0


# ---- /documents/templates ----

def test_documents_templates(fastapi_client):
    r = fastapi_client.get("/documents/templates")
    assert r.status_code == 200
    body = r.json()
    assert "supported" in body
    assert isinstance(body["supported"], list)
    assert "act_hidden_works" in body["supported"]
    assert "general_work_log" in body["supported"]


# ---- /work/infer ----

@pytest.mark.asyncio
async def test_work_infer_no_payload_returns_422(fastapi_client):
    r = fastapi_client.post("/work/infer", json={"wrong": "shape"})
    assert r.status_code == 422


@pytest.mark.asyncio
async def test_work_infer_short_text_returns_422(fastapi_client):
    r = fastapi_client.post(
        "/work/infer",
        json={
            "raw_text": "ab",  # too short
            "date_from": "2026-06-22",
            "date_to": "2026-06-22",
        },
    )
    assert r.status_code == 422


# ---- /work/blueprint (offline-friendly path) ----

@pytest.mark.asyncio
async def test_blueprint_reject_invalid_mime(fastapi_client):
    fake = (b"not really a video", "test.gif", "image/gif")
    r = fastapi_client.post(
        "/work/blueprint",
        files={"file": (fake[1], io.BytesIO(fake[0]), fake[2])},
    )
    assert r.status_code == 415
    assert "image/png" in r.json()["detail"]


@pytest.mark.asyncio
async def test_blueprint_reject_empty(fastapi_client):
    r = fastapi_client.post(
        "/work/blueprint",
        files={"file": ("empty.png", io.BytesIO(b""), "image/png")},
    )
    # FastAPI's UploadFile may read empty bytes — endpoint catches and
    # returns 400 "empty upload".
    assert r.status_code in (400, 422)
    detail = (r.json().get("detail") or "").lower()
    assert "empty" in detail or "required" in detail


# ---- /projects validation ----

@pytest.mark.asyncio
async def test_projects_create_missing_fields_returns_422(fastapi_client):
    r = fastapi_client.post("/projects", json={"contract_no": "12-2026/BN"})
    # contract_no isn't enough — many required fields missing.
    assert r.status_code == 422


@pytest.mark.asyncio
async def test_projects_get_unknown_id_returns_404_or_503(fastapi_client):
    """Off the offline path this either 404s (real Supabase), 503 (Supabase
    unreachable), 500 (broken client) — never 200 because the row isn't
    real.
    """
    r = fastapi_client.get(
        "/projects/00000000-0000-0000-0000-000000000000"
    )
    assert r.status_code in (404, 503)