"""TDD: Server CRUD + availability API tests"""


def test_create_server(client):
    payload = {
        "name": "home",
        "ip_address": "10.1.0.254",
        "description": "核心服務主機",
        "sort_order": 1,
    }
    resp = client.post("/api/v1/servers", json=payload)
    assert resp.status_code == 201
    data = resp.json()
    assert data["name"] == "home"
    assert data["ip_address"] == "10.1.0.254"
    assert data["sort_order"] == 1
    assert data["is_active"] is True
    assert data["last_result"] is None
    # New server has no status logs: availability is None (not yet computed)
    assert data["availability"] is None


def test_create_server_duplicate_ip(client):
    client.post("/api/v1/servers", json={"name": "A", "ip_address": "10.1.0.10"})
    resp = client.post("/api/v1/servers", json={"name": "B", "ip_address": "10.1.0.10"})
    assert resp.status_code == 409


def test_list_servers_ordered_by_sort_order(client):
    client.post("/api/v1/servers", json={"name": "C", "ip_address": "10.1.0.30", "sort_order": 3})
    client.post("/api/v1/servers", json={"name": "A", "ip_address": "10.1.0.10", "sort_order": 1})
    client.post("/api/v1/servers", json={"name": "B", "ip_address": "10.1.0.20", "sort_order": 2})
    resp = client.get("/api/v1/servers")
    assert resp.status_code == 200
    servers = resp.json()
    assert [s["name"] for s in servers] == ["A", "B", "C"]


def test_get_server(client):
    r = client.post("/api/v1/servers", json={"name": "nas", "ip_address": "10.1.0.20", "sort_order": 2})
    sid = r.json()["id"]
    resp = client.get(f"/api/v1/servers/{sid}")
    assert resp.status_code == 200
    assert resp.json()["ip_address"] == "10.1.0.20"


def test_get_server_not_found(client):
    resp = client.get("/api/v1/servers/99999")
    assert resp.status_code == 404


def test_update_server(client):
    r = client.post("/api/v1/servers", json={"name": "old", "ip_address": "10.1.0.50"})
    sid = r.json()["id"]
    resp = client.put(f"/api/v1/servers/{sid}", json={"name": "new", "sort_order": 5})
    assert resp.status_code == 200
    data = resp.json()
    assert data["name"] == "new"
    assert data["sort_order"] == 5


def test_delete_server(client):
    r = client.post("/api/v1/servers", json={"name": "temp", "ip_address": "10.1.0.99"})
    sid = r.json()["id"]
    resp = client.delete(f"/api/v1/servers/{sid}")
    assert resp.status_code == 204
    resp = client.get(f"/api/v1/servers/{sid}")
    assert resp.status_code == 404


def test_server_availability_with_logs(client, db):
    """驗證可用率計算（有歷史紀錄）"""
    from datetime import datetime
    from app.models.schedule import Schedule, ScheduleLog
    from app.models.server import Server, ServerStatusLog

    # Create schedule and log
    s = Schedule(id=10, name="test", cron_timer="0 * * * * *", status="Waiting", recorded_at=datetime.utcnow())
    db.add(s)
    slog = ScheduleLog(schedule_id=10, schedule_name="test", started_at=datetime.utcnow(), status="ok")
    db.add(slog)
    db.commit()
    db.refresh(slog)

    # Create server
    r = client.post("/api/v1/servers", json={"name": "pingable", "ip_address": "10.1.0.100"})
    server_id = r.json()["id"]

    # Insert 3 ok + 1 fail status logs with distinct timestamps to ensure ordering
    from datetime import timedelta
    base_time = datetime.utcnow()
    for i, ok in enumerate([True, True, True, False]):
        db.add(ServerStatusLog(
            schedule_log_id=slog.id, server_id=server_id,
            result=ok, response_time=12.5 if ok else None,
            recorded_at=base_time + timedelta(seconds=i),  # ascending timestamps
        ))
    db.commit()

    resp = client.get(f"/api/v1/servers/{server_id}")
    assert resp.status_code == 200
    data = resp.json()
    assert data["last_result"] is False   # last inserted (highest id, latest time) was False
    assert data["availability"]["availability_30d"] == 75.0


def test_system_status_empty(client):
    resp = client.get("/api/v1/system-status")
    assert resp.status_code == 200
    assert resp.json() == []