"""Authenticated frontend routes for Monitoring Trends."""

from pathlib import Path
from typing import Annotated
from uuid import UUID

from fastapi import APIRouter, Depends, HTTPException, Query
from fastapi.responses import HTMLResponse, Response

from app.frontend.views import render_app_page
from app.identity import require_permission, user_has_permission
from app.monitoring.models import (
    MonitoringTrendQuery,
    TrendRange,
    TrendScopeType,
)


router = APIRouter(tags=["frontend"])
STATIC_ROOT = Path(__file__).parents[1] / "frontend" / "static"
MonitoringUser = Annotated[dict, Depends(require_permission("miners.view"))]


@router.get("/assets/minerops-monitoring-trends.css", include_in_schema=False)
def monitoring_trends_styles() -> Response:
    return Response(
        (STATIC_ROOT / "monitoring-trends.css").read_text(encoding="utf-8"),
        media_type="text/css",
        headers={"Cache-Control": "no-store"},
    )


@router.get("/assets/minerops-monitoring-trends.js", include_in_schema=False)
def monitoring_trends_script() -> Response:
    return Response(
        (STATIC_ROOT / "monitoring-trends.js").read_text(encoding="utf-8"),
        media_type="text/javascript",
        headers={"Cache-Control": "no-store"},
    )


@router.get(
    "/monitoring/analytics",
    response_class=HTMLResponse,
    include_in_schema=False,
)
def monitoring_analytics_page(
    current_user: MonitoringUser,
    scope: Annotated[TrendScopeType, Query()] = "fleet",
    scope_id: Annotated[UUID | None, Query()] = None,
    time_range: Annotated[TrendRange, Query(alias="range")] = "24h",
) -> str:
    try:
        query = MonitoringTrendQuery(
            scope=scope, scope_id=scope_id, range=time_range
        )
    except ValueError as exc:
        raise HTTPException(status_code=422, detail=str(exc)) from exc
    if query.scope in {"site", "room"} and not user_has_permission(
        current_user, "locations.view"
    ):
        raise HTTPException(
            status_code=403,
            detail="Location viewing permission is required for this scope",
        )
    return render_app_page(
        "analytics",
        current_user,
        lambda permission: user_has_permission(current_user, permission),
    )