"""Router /mcp-hyperliquid/* — DI per env, client e (write) creds.

Mappa 1:1 i tool di `cerbero_mcp.exchanges.hyperliquid.tools` a endpoint
`POST /mcp-hyperliquid/tools/{tool_name}`. L'autenticazione bearer è gestita
dal middleware in `cerbero_mcp.auth`; qui leggiamo solo `request.state.environment`.
"""
from __future__ import annotations

from typing import Literal

from fastapi import APIRouter, Depends, Request

from cerbero_mcp.client_registry import ClientRegistry
from cerbero_mcp.exchanges.hyperliquid import tools as t
from cerbero_mcp.exchanges.hyperliquid.client import HyperliquidClient

Environment = Literal["testnet", "mainnet"]


def get_environment(request: Request) -> Environment:
    return request.state.environment


async def get_hyperliquid_client(
    request: Request, env: Environment = Depends(get_environment)
) -> HyperliquidClient:
    registry: ClientRegistry = request.app.state.registry
    return await registry.get("hyperliquid", env)


def _build_creds(request: Request) -> dict:
    """Costruisce dict `creds` minimale per leverage cap / metadata."""
    settings = request.app.state.settings
    return {
        "max_leverage": settings.hyperliquid.max_leverage,
        "wallet_address": settings.hyperliquid.wallet_address,
    }


def make_router() -> APIRouter:
    r = APIRouter(prefix="/mcp-hyperliquid", tags=["hyperliquid"])

    # === READ tools ===

    @r.post("/tools/environment_info")
    async def _environment_info(
        request: Request,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        creds = _build_creds(request)
        return await t.environment_info(client, creds=creds)

    @r.post("/tools/get_markets")
    async def _get_markets(
        params: t.GetMarketsReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_markets(client, params)

    @r.post("/tools/get_ticker")
    async def _get_ticker(
        params: t.GetTickerReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_ticker(client, params)

    @r.post("/tools/get_orderbook")
    async def _get_orderbook(
        params: t.GetOrderbookReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_orderbook(client, params)

    @r.post("/tools/get_positions")
    async def _get_positions(
        params: t.GetPositionsReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_positions(client, params)

    @r.post("/tools/get_account_summary")
    async def _get_account_summary(
        params: t.GetAccountSummaryReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_account_summary(client, params)

    @r.post("/tools/get_trade_history")
    async def _get_trade_history(
        params: t.GetTradeHistoryReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_trade_history(client, params)

    @r.post("/tools/get_historical")
    async def _get_historical(
        params: t.GetHistoricalReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_historical(client, params)

    @r.post("/tools/get_open_orders")
    async def _get_open_orders(
        params: t.GetOpenOrdersReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_open_orders(client, params)

    @r.post("/tools/get_funding_rate")
    async def _get_funding_rate(
        params: t.GetFundingRateReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_funding_rate(client, params)

    @r.post("/tools/basis_spot_perp")
    async def _basis_spot_perp(
        params: t.BasisSpotPerpReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.basis_spot_perp(client, params)

    @r.post("/tools/get_indicators")
    async def _get_indicators(
        params: t.GetIndicatorsReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.get_indicators(client, params)

    # === WRITE tools (richiedono creds per leverage cap / audit) ===

    @r.post("/tools/place_order")
    async def _place_order(
        params: t.PlaceOrderReq,
        request: Request,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        creds = _build_creds(request)
        return await t.place_order(client, params, creds=creds)

    @r.post("/tools/cancel_order")
    async def _cancel_order(
        params: t.CancelOrderReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.cancel_order(client, params)

    @r.post("/tools/set_stop_loss")
    async def _set_stop_loss(
        params: t.SetStopLossReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.set_stop_loss(client, params)

    @r.post("/tools/set_take_profit")
    async def _set_take_profit(
        params: t.SetTakeProfitReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.set_take_profit(client, params)

    @r.post("/tools/close_position")
    async def _close_position(
        params: t.ClosePositionReq,
        client: HyperliquidClient = Depends(get_hyperliquid_client),
    ):
        return await t.close_position(client, params)

    return r