import {
  aggregateAcrossTeams,
  formatAggregationResult,
  loopGet,
} from "../lib/loop-api.js";

// ─── Loop API V2: /team/{agentId}/availability/{searchDate} ────
// Returns array of: { agentId, start, end }
// Times are ISO datetime strings (e.g. "2026-04-10T06:00:00")
// ────────────────────────────────────────────────────────────────
interface LoopTimeRange {
  agentId?: string;
  start?: string;
  end?: string;
  [key: string]: unknown;
}

export async function teamAvailability(params: {
  accountId: string;
  agentId: string;
  searchDate: string;
  teamName?: string;
}): Promise<string> {
  const { accountId, agentId, searchDate, teamName } = params;

  const result = await aggregateAcrossTeams<LoopTimeRange>(
    accountId,
    "team",
    "loop-team-availability",
    async (apiKey, team) => {
      const path = `/team/${encodeURIComponent(agentId)}/availability/${encodeURIComponent(searchDate)}`;
      const data = await loopGet<LoopTimeRange[]>(apiKey, path, "loop-team-availability", team);
      return Array.isArray(data) ? data : [];
    },
    { teamName }
  );

  return formatAggregationResult(
    result,
    (slot) => {
      const start = slot.start ? formatTime(slot.start) : "?";
      const end = slot.end ? formatTime(slot.end) : "?";
      return `- ${start} — ${end}`;
    },
    `availability slots for ${searchDate}`
  );
}

function formatTime(iso: string): string {
  const timePart = iso.split("T")[1];
  return timePart ? timePart.slice(0, 5) : iso;
}