Fix.md

1. Date Handling You're passing the Date objects directly to createEvent, but they need to be converted to Unix timestamps first. Here's how to fix this:

const handleSubmit = (e: React.FormEvent) => {
  e.preventDefault();
  if (isConnected) {
    setIsSubmitting(true);

    if (validateForm()) {
      // Combine date and time
      const combinedStartDate = startDate && startTime ? 
        new Date(
          startDate.getFullYear(),
          startDate.getMonth(),
          startDate.getDate(),
          startTime.getHours(),
          startTime.getMinutes()
        ) : null;

      const combinedEndDate = isOneTime && endDate && endTime ? 
        new Date(
          endDate.getFullYear(),
          endDate.getMonth(),
          endDate.getDate(),
          endTime.getHours(),
          endTime.getMinutes()
        ) : null;

      // Convert to BigInt timestamps
      const startTimestamp = combinedStartDate ? 
        BigInt(Math.floor(combinedStartDate.getTime() / 1000)) : 
        BigInt(0);

      const endTimestamp = combinedEndDate ? 
        BigInt(Math.floor(combinedEndDate.getTime() / 1000)) : 
        BigInt(0);

      // Convert price to Wei
      const priceInWei = ticketPrice ? 
        parseEther(ticketPrice.toString()) : 
        BigInt(0);

      // Ensure capacity is within uint16 range
      const safeCapacity = capacity ? 
        Math.min(Math.max(1, capacity), 65535) : 
        1;

      try {
        createEvent(
          safeCapacity,
          priceInWei,
          startTimestamp,
          endTimestamp,
          event.name.trim(),
          selectedImage || "",
          event.description.trim(),
          event.location.trim(),
          !isPublic
        );
      } catch (error) {
        console.error('Event creation error:', error);
        toast.error('Failed to create event');
      }
    }
  } else {
    setIsSubmitting(false);
    toast.error("Please connect your wallet first");
  }
};

2. Input Validation Add stronger validation in your form:

const validateForm = () => {
  const newErrors: { [key: string]: string } = {};

  if (!event.name.trim()) {
    newErrors.name = "Event name is required";
  }

  if (!event.location.trim()) {
    newErrors.location = "Event location is required";
  }

  if (!startDate || !startTime) {
    newErrors.startDate = "Start date and time are required";
  }

  if (isOneTime && (!endDate || !endTime)) {
    newErrors.endDate = "End date and time are required for one-time events";
  }

  if (capacity === null || capacity <= 0 || capacity > 65535) {
    newErrors.capacity = "Capacity must be between 1 and 65535";
  }

  if (ticketPrice && ticketPrice < 0) {
    newErrors.ticketPrice = "Ticket price cannot be negative";
  }

  const now = new Date();
  const startDateTime = startDate && startTime ? new Date(
    startDate.getFullYear(),
    startDate.getMonth(),
    startDate.getDate(),
    startTime.getHours(),
    startTime.getMinutes()
  ) : null;

  if (startDateTime && startDateTime <= now) {
    newErrors.startDate = "Start date must be in the future";
  }

  setErrors(newErrors);
  return Object.keys(newErrors).length === 0;
};

3. Add Debug Logging Add this before the createEvent call:

console.log('Creating event with parameters:', {
  capacity: safeCapacity,
  priceInWei: priceInWei.toString(),
  startTimestamp: startTimestamp.toString(),
  endTimestamp: endTimestamp.toString(),
  name: event.name.trim(),
  banner: selectedImage || "",
  description: event.description.trim(),
  location: event.location.trim(),
  isPrivate: !isPublic
});

4. Error Handling in useCreateEvent Update your error handling in the hook:

function parseContractError(error: any): string {
  console.error('Contract error details:', error);
  
  if (error?.shortMessage) return error.shortMessage;
  
  const errorMap: Record<string, string> = {
    'EventDateInPast': 'Event date must be in the future',
    'InvalidEndDate': 'End date must be after start date',
    'execution reverted': 'Transaction failed - check your inputs',
    'insufficient funds': 'Insufficient funds for gas',
    'gas required exceeds allowance': 'Transaction would fail - check your inputs'
  };

  for (const [key, message] of Object.entries(errorMap)) {
    if (error?.message?.toLowerCase().includes(key.toLowerCase())) {
      return message;
    }
  }

  return 'An unexpected error occurred. Please check your inputs and try again.';
}