"""HTTP contract: golden request fixtures go in, schema-valid responses come out."""

from __future__ import annotations

import json
from decimal import Decimal
from pathlib import Path

from fastapi.testclient import TestClient

from vpp_contracts.bid_optimization_result import BidOptimizationResult
from vpp_contracts.forecast_bundle import ForecastBundle
from vpp_contracts.skill_report import SkillReport
from vpp_skills.app import app

from .conftest import forecast_request

FIXTURES = Path(__file__).resolve().parents[2] / "contracts" / "fixtures"
client = TestClient(app)


def test_registry_lists_versions():
    r = client.get("/v1/skills")
    assert r.status_code == 200
    ids = {s["id"]: s for s in r.json()}
    assert ids["bid-optimization-milp"]["endpoint"] == "/v1/optimize/bid"
    assert ids["load-forecast"]["version"] == "1.0.0"


def test_price_forecast_from_golden_fixture():
    req = json.loads((FIXTURES / "forecast_request" / "price-da.json").read_text())
    r = client.post("/v1/forecast/price", json=req)
    assert r.status_code == 200, r.text
    ForecastBundle.model_validate(r.json())


def test_kind_endpoint_mismatch_is_422(dataset):
    r = client.post("/v1/forecast/pv", json=forecast_request(dataset, "LOAD", 30))
    assert r.status_code == 422


def test_bid_optimization_from_golden_fixture():
    req = json.loads((FIXTURES / "bid_optimization_request" / "da-basic.json").read_text())
    r = client.post("/v1/optimize/bid", json=req)
    assert r.status_code == 200, r.text
    out = BidOptimizationResult.model_validate(r.json())
    assert out.solver.status.value == "OPTIMAL"
    assert Decimal("1140") <= Decimal(out.daily_energy_mwh) <= Decimal("1260")


def test_report_from_golden_fixture():
    req = json.loads((FIXTURES / "report_request" / "da-bid-summary.json").read_text())
    r = client.post("/v1/report", json=req)
    assert r.status_code == 200, r.text
    SkillReport.model_validate(r.json())


def test_schema_violation_is_422():
    r = client.post("/v1/optimize/bid", json={"market_date": "2026-03-15"})
    assert r.status_code == 422