// app/utils/api.ts
export interface TimeSeriesEntry {
  time: string;
  value: number;
}

export interface TimeSeriesResponse {
  consumption: TimeSeriesEntry[];
  generation: TimeSeriesEntry[];
}

export async function fetchPowerTimeseries(
  site: string,
  start: string,
  end: string
): Promise<TimeSeriesResponse> { // <-- Change here
  const params = new URLSearchParams({ site, start, end });

  const res = await fetch(`http://localhost:8000/power-timeseries?${params.toString()}`);

  if (!res.ok) {
    throw new Error(`Failed to fetch data: ${res.status}`);
  }

  const json = await res.json();
  console.log(`🔍 API response from /power-timeseries?${params.toString()}:`, json); // ✅ log here
  return json; // <-- This is a single object, not an array
}