'use client';

import { useState, useEffect } from 'react';
import { OperatorSession } from './types';

export function useOpsSession(initialSession?: OperatorSession | null) {
  const [session, setSession] = useState<OperatorSession | null>(initialSession ?? null);
  const [isLoading, setIsLoading] = useState<boolean>(!initialSession);
  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    if (initialSession) {
      setSession(initialSession);
      setIsLoading(false);
      return;
    }

    let isMounted = true;
    async function fetchSession() {
      try {
        const res = await fetch('/api/ops/session', {
          headers: { accept: 'application/json' },
          cache: 'no-store',
        });
        if (!res.ok) {
          if (isMounted) {
            setError('Failed to fetch Operations session.');
            setIsLoading(false);
          }
          return;
        }
        const data = await res.json();
        if (isMounted) {
          if (data?.session) {
            setSession(data.session);
          }
          setIsLoading(false);
        }
      } catch {
        if (isMounted) {
          setError('Unable to connect to Operations platform.');
          setIsLoading(false);
        }
      }
    }

    void fetchSession();
    return () => {
      isMounted = false;
    };
  }, [initialSession]);

  return { session, isLoading, error };
}