"""PR-Worker-Pool-Registry-1B — /internal/worker/* 5 endpoint 정상 동작.

6 항목 (claim 두 경로 분리):
  1. /register UPSERT — 같은 worker_id 두번 호출 시 row 1 + device_label 갱신.
  2. /heartbeat — row INSERT + status='available' 저장.
  3. /claim — queue empty 시 204 + body 0 (정정 #4).
  4. /claim — pending row 1건 + 200 + status='processing' 전이.
  5. /result completed — status='completed' + result JSONB 저장.
  6. /drain — heartbeat row status='draining' INSERT.
"""

from __future__ import annotations

import os
import sys
import uuid

import pytest
import pytest_asyncio

sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "app"))

from httpx import ASGITransport, AsyncClient

from _worker_pool_helpers import (
    cleanup_worker_capabilities,
    cleanup_worker_jobs,
    count_worker_capability,
    ensure_user,
    fetch_latest_heartbeat,
    fetch_worker_capability,
    fetch_worker_job,
    insert_worker_capability,
    insert_worker_job,
    mint_access_token,
)


@pytest_asyncio.fixture
async def env_setup(monkeypatch):
    monkeypatch.setenv("LAPTOP_WORKER_BOT_USERNAME", "laptop-worker-bot")


@pytest_asyncio.fixture
async def worker_token(env_setup):
    await ensure_user("laptop-worker-bot")
    return mint_access_token("laptop-worker-bot")


@pytest_asyncio.fixture
async def owner_id():
    return await ensure_user("test-owner-ep-1b")


@pytest_asyncio.fixture
async def worker_id_with_capability(owner_id):
    wid = f"test-ep-1b-{uuid.uuid4().hex[:8]}"
    await insert_worker_capability(wid, owner_id)
    yield wid
    await cleanup_worker_jobs("test-ep-1b")
    await cleanup_worker_capabilities("test-ep-1b")


@pytest_asyncio.fixture
async def client():
    from main import app

    async with AsyncClient(
        transport=ASGITransport(app=app), base_url="http://test"
    ) as ac:
        yield ac


def _auth(token: str) -> dict:
    return {"Authorization": f"Bearer {token}"}


@pytest.mark.asyncio
async def test_register_upsert(client, worker_token):
    wid = f"test-ep-1b-reg-{uuid.uuid4().hex[:6]}"
    try:
        body = {
            "worker_id": wid,
            "device_label": "MacBook Pro M3 Pro",
            "worker_class": "laptop",
            "tier": "laptop_small",
            "capabilities": ["short_summary"],
            "models_loaded": ["gemma-3-4b-it"],
        }
        r1 = await client.post("/internal/worker/register", json=body, headers=_auth(worker_token))
        assert r1.status_code == 200, r1.text
        body["device_label"] = "MacBook Pro M3 Pro (renamed)"
        r2 = await client.post("/internal/worker/register", json=body, headers=_auth(worker_token))
        assert r2.status_code == 200
        assert await count_worker_capability(wid) == 1
        cap = await fetch_worker_capability(wid)
        assert cap is not None
        assert cap["device_label"] == "MacBook Pro M3 Pro (renamed)"
    finally:
        await cleanup_worker_capabilities(wid)


@pytest.mark.asyncio
async def test_heartbeat_insert(client, worker_token, worker_id_with_capability):
    wid = worker_id_with_capability
    r = await client.post(
        "/internal/worker/heartbeat",
        json={"worker_id": wid, "status": "available"},
        headers=_auth(worker_token),
    )
    assert r.status_code == 200, r.text
    hb = await fetch_latest_heartbeat(wid)
    assert hb is not None
    assert hb["status"] == "available"


@pytest.mark.asyncio
async def test_claim_204_when_empty(client, worker_token):
    r = await client.post(
        "/internal/worker/claim",
        json={"worker_id": "test-ep-1b-empty", "job_type": "test-ep-1b-NOEXIST"},
        headers=_auth(worker_token),
    )
    assert r.status_code == 204
    assert r.content == b""  # 정정 #4


@pytest.mark.asyncio
async def test_claim_processing_transition(
    client, worker_token, worker_id_with_capability, owner_id
):
    wid = worker_id_with_capability
    jt = "test-ep-1b-claim"
    job_id = await insert_worker_job(owner_id, jt, payload='{"week":"2026-W20"}')

    r = await client.post(
        "/internal/worker/claim",
        json={"worker_id": wid, "job_type": jt},
        headers=_auth(worker_token),
    )
    assert r.status_code == 200, r.text
    js = r.json()
    assert js["id"] == job_id
    assert js["job_type"] == jt
    assert js["attempts"] == 1
    assert js["payload"]["week"] == "2026-W20"

    job = await fetch_worker_job(job_id)
    assert job["status"] == "processing"
    assert job["worker_id"] == wid
    assert job["attempts"] == 1


@pytest.mark.asyncio
async def test_result_completed(client, worker_token, worker_id_with_capability, owner_id):
    wid = worker_id_with_capability
    job_id = await insert_worker_job(
        owner_id,
        "test-ep-1b-result",
        status="processing",
        worker_id=wid,
        attempts=1,
        claimed=True,
    )
    r = await client.post(
        "/internal/worker/result",
        json={
            "job_id": job_id,
            "worker_id": wid,
            "status": "completed",
            "result": {"summary": "test"},
        },
        headers=_auth(worker_token),
    )
    assert r.status_code == 200, r.text
    job = await fetch_worker_job(job_id)
    assert job["status"] == "completed"
    assert job["result"] == {"summary": "test"}


@pytest.mark.asyncio
async def test_drain_heartbeat_insert(client, worker_token, worker_id_with_capability):
    wid = worker_id_with_capability
    r = await client.post(
        "/internal/worker/drain",
        json={"worker_id": wid, "reason": "sleep"},
        headers=_auth(worker_token),
    )
    assert r.status_code == 200
    hb = await fetch_latest_heartbeat(wid)
    assert hb is not None
    assert hb["status"] == "draining"
    assert hb["raw_payload"] == {"reason": "sleep"}