import * as LabelPrimitive from '@radix-ui/react-label';
import { Slot } from '@radix-ui/react-slot';
import { Controller, ControllerProps, FieldPath, FieldValues, FormProvider } from 'react-hook-form';

import * as React from 'react';

import { Label } from '@/Components/ui/label';
import { cn } from '@/lib/utils';

import { FormFieldContext, FormItemContext, useFormField } from './use-form-field';

const Form = FormProvider;

const FormField = <
  TFieldValues extends FieldValues = FieldValues,
  TName extends FieldPath<TFieldValues> = FieldPath<TFieldValues>,
>({
  ...props
}: ControllerProps<TFieldValues, TName>) => {
  return (
    <FormFieldContext.Provider value={{ name: props.name }}>
      <Controller {...props} />
    </FormFieldContext.Provider>
  );
};

const FormItem = React.forwardRef<HTMLDivElement, React.HTMLAttributes<HTMLDivElement>>(
  ({ className, ...props }, ref) => {
    const id = React.useId();

    return (
      <FormItemContext.Provider value={{ id }}>
        <div ref={ref} className={cn('space-y-2', className)} {...props} />
      </FormItemContext.Provider>
    );
  },
);
FormItem.displayName = 'FormItem';

const FormLabel = React.forwardRef<
  React.ElementRef<typeof LabelPrimitive.Root>,
  React.ComponentPropsWithoutRef<typeof LabelPrimitive.Root>
>(({ className, ...props }, ref) => {
  const { error, formItemId } = useFormField();

  return (
    <Label
      ref={ref}
      className={cn(error && 'text-destructive', className)}
      htmlFor={formItemId}
      {...props}
    />
  );
});
FormLabel.displayName = 'FormLabel';

const FormControl = React.forwardRef<
  React.ElementRef<typeof Slot>,
  React.ComponentPropsWithoutRef<typeof Slot>
>(({ ...props }, ref) => {
  const { error, formItemId, formDescriptionId, formMessageId } = useFormField();

  // Combine description and error IDs, filtering out empty ones
  const describedByIds = [formDescriptionId, error ? formMessageId : ''].filter(Boolean).join(' ');

  return (
    <Slot
      ref={ref}
      id={formItemId}
      aria-describedby={describedByIds || undefined}
      aria-invalid={!!error}
      {...props}
    />
  );
});
FormControl.displayName = 'FormControl';

const FormDescription = React.forwardRef<
  HTMLParagraphElement,
  React.HTMLAttributes<HTMLParagraphElement>
>(({ className, ...props }, ref) => {
  const { formDescriptionId } = useFormField();

  return (
    <p
      ref={ref}
      id={formDescriptionId}
      className={cn('text-sm text-muted-foreground', className)}
      {...props}
    />
  );
});
FormDescription.displayName = 'FormDescription';

const FormMessage = React.forwardRef<
  HTMLParagraphElement,
  React.HTMLAttributes<HTMLParagraphElement>
>(({ className, children, ...props }, ref) => {
  const { error, formMessageId } = useFormField();
  const body = error ? String(error?.message) : children;

  if (!body) {
    return null;
  }

  return (
    <p
      ref={ref}
      id={formMessageId}
      className={cn('text-sm font-medium text-destructive', className)}
      {...props}
    >
      {body}
    </p>
  );
});
FormMessage.displayName = 'FormMessage';

export { Form, FormItem, FormLabel, FormControl, FormDescription, FormMessage, FormField };