from __future__ import annotations

from unittest.mock import AsyncMock, MagicMock

import pytest
from fastapi.testclient import TestClient
from mcp_hyperliquid.server import create_app
from option_mcp_common.auth import Principal, TokenStore


@pytest.fixture
def mock_client():
    c = MagicMock()
    c.get_markets = AsyncMock(return_value=[{"asset": "BTC", "mark_price": 50000}])
    c.get_ticker = AsyncMock(return_value={"asset": "BTC", "mark_price": 50000})
    c.get_orderbook = AsyncMock(return_value={"bids": [], "asks": []})
    c.get_positions = AsyncMock(return_value=[])
    c.get_account_summary = AsyncMock(return_value={"equity": 1500, "perps_equity": 1000})
    c.get_trade_history = AsyncMock(return_value=[])
    c.get_historical = AsyncMock(return_value={"candles": []})
    c.get_open_orders = AsyncMock(return_value=[])
    c.get_funding_rate = AsyncMock(return_value={"asset": "BTC", "current_funding_rate": 0.0001})
    c.get_indicators = AsyncMock(return_value={"rsi": 55.0})
    c.place_order = AsyncMock(return_value={"order_id": "x", "status": "ok"})
    c.cancel_order = AsyncMock(return_value={"order_id": "x", "status": "ok"})
    c.set_stop_loss = AsyncMock(return_value={"order_id": "x", "status": "ok"})
    c.set_take_profit = AsyncMock(return_value={"order_id": "x", "status": "ok"})
    c.close_position = AsyncMock(return_value={"status": "ok", "asset": "BTC"})
    return c


@pytest.fixture
def http(mock_client):
    store = TokenStore(
        tokens={
            "ct": Principal("core", {"core"}),
            "ot": Principal("observer", {"observer"}),
        }
    )
    app = create_app(client=mock_client, token_store=store)
    return TestClient(app)


# --- Health ---

def test_health(http):
    assert http.get("/health").status_code == 200


# --- Read tools: both core and observer allowed ---

def test_get_markets_core_ok(http):
    r = http.post("/tools/get_markets", headers={"Authorization": "Bearer ct"}, json={})
    assert r.status_code == 200


def test_get_markets_observer_ok(http):
    r = http.post("/tools/get_markets", headers={"Authorization": "Bearer ot"}, json={})
    assert r.status_code == 200


def test_get_ticker_core_ok(http):
    r = http.post(
        "/tools/get_ticker",
        headers={"Authorization": "Bearer ct"},
        json={"instrument": "BTC"},
    )
    assert r.status_code == 200
    assert r.json()["mark_price"] == 50000


def test_get_ticker_observer_ok(http):
    r = http.post(
        "/tools/get_ticker",
        headers={"Authorization": "Bearer ot"},
        json={"instrument": "BTC"},
    )
    assert r.status_code == 200


def test_get_ticker_no_auth_401(http):
    r = http.post("/tools/get_ticker", json={"instrument": "BTC"})
    assert r.status_code == 401


def test_get_account_summary_observer_ok(http):
    r = http.post(
        "/tools/get_account_summary",
        headers={"Authorization": "Bearer ot"},
        json={},
    )
    assert r.status_code == 200
    assert r.json()["equity"] == 1500


def test_get_funding_rate_observer_ok(http):
    r = http.post(
        "/tools/get_funding_rate",
        headers={"Authorization": "Bearer ot"},
        json={"instrument": "BTC"},
    )
    assert r.status_code == 200


def test_get_positions_no_auth_401(http):
    r = http.post("/tools/get_positions", json={})
    assert r.status_code == 401


# --- Write tools: core only ---

def test_place_order_core_ok(http):
    # CER-016: amount * price = 150 < cap 200
    r = http.post(
        "/tools/place_order",
        headers={"Authorization": "Bearer ct"},
        json={"instrument": "BTC", "side": "buy", "amount": 0.003, "price": 50000},
    )
    assert r.status_code == 200


def test_place_order_observer_forbidden(http):
    r = http.post(
        "/tools/place_order",
        headers={"Authorization": "Bearer ot"},
        json={"instrument": "BTC", "side": "buy", "amount": 0.001, "price": 50000},
    )
    assert r.status_code == 403


def test_place_order_notional_cap_enforced(http):
    """CER-016: HL reject amount*price > 200."""
    r = http.post(
        "/tools/place_order",
        headers={"Authorization": "Bearer ct"},
        json={"instrument": "ETH", "side": "buy", "amount": 0.1, "price": 3350},
    )
    assert r.status_code == 403
    assert r.json()["error"]["code"] == "HARD_PROHIBITION"


def test_place_order_leverage_cap_enforced_hl(http):
    r = http.post(
        "/tools/place_order",
        headers={"Authorization": "Bearer ct"},
        json={
            "instrument": "BTC",
            "side": "buy",
            "amount": 0.001,
            "price": 50000,
            "leverage": 10,
        },
    )
    assert r.status_code == 403


def test_cancel_order_core_ok(http):
    r = http.post(
        "/tools/cancel_order",
        headers={"Authorization": "Bearer ct"},
        json={"order_id": "123", "instrument": "BTC"},
    )
    assert r.status_code == 200


def test_cancel_order_observer_forbidden(http):
    r = http.post(
        "/tools/cancel_order",
        headers={"Authorization": "Bearer ot"},
        json={"order_id": "123", "instrument": "BTC"},
    )
    assert r.status_code == 403


def test_set_stop_loss_core_ok(http):
    r = http.post(
        "/tools/set_stop_loss",
        headers={"Authorization": "Bearer ct"},
        json={"instrument": "BTC", "stop_price": 45000.0, "size": 0.1},
    )
    assert r.status_code == 200


def test_set_stop_loss_observer_forbidden(http):
    r = http.post(
        "/tools/set_stop_loss",
        headers={"Authorization": "Bearer ot"},
        json={"instrument": "BTC", "stop_price": 45000.0, "size": 0.1},
    )
    assert r.status_code == 403


def test_set_take_profit_observer_forbidden(http):
    r = http.post(
        "/tools/set_take_profit",
        headers={"Authorization": "Bearer ot"},
        json={"instrument": "BTC", "tp_price": 55000.0, "size": 0.1},
    )
    assert r.status_code == 403


def test_close_position_core_ok(http):
    r = http.post(
        "/tools/close_position",
        headers={"Authorization": "Bearer ct"},
        json={"instrument": "BTC"},
    )
    assert r.status_code == 200


def test_close_position_observer_forbidden(http):
    r = http.post(
        "/tools/close_position",
        headers={"Authorization": "Bearer ot"},
        json={"instrument": "BTC"},
    )
    assert r.status_code == 403