"use client";

import { Button } from "@/components/shadcn/button/button";
import { Textarea } from "@/components/shadcn/textarea/textarea";

interface FeedbackFormReasonOption<TReason extends string> {
  value: TReason;
  label: string;
}

interface FeedbackFormReasons<TReason extends string> {
  label: string;
  options: readonly FeedbackFormReasonOption<TReason>[];
  selected: readonly TReason[];
  onToggle: (reason: TReason) => void;
}

interface FeedbackFormProps<TReason extends string = string> {
  title: string;
  description?: string;
  reasons?: FeedbackFormReasons<TReason>;
  detailsLabel: string;
  placeholder?: string;
  details: string;
  detailsMaxLength?: number;
  submitLabel?: string;
  isSubmitting?: boolean;
  submitDisabled?: boolean;
  error?: string | null;
  onDetailsChange: (details: string) => void;
  onSubmit: () => void;
  onCancel?: () => void;
}

export function FeedbackForm<TReason extends string = string>({
  title,
  description,
  reasons,
  detailsLabel,
  placeholder,
  details,
  detailsMaxLength,
  submitLabel = "Submit",
  isSubmitting = false,
  submitDisabled = false,
  error,
  onDetailsChange,
  onSubmit,
  onCancel,
}: FeedbackFormProps<TReason>) {
  return (
    <form
      className="flex flex-col gap-4"
      onSubmit={(event) => {
        event.preventDefault();
        onSubmit();
      }}
    >
      <div className="flex flex-col gap-1">
        <h2 className="text-text-neutral-primary text-base font-semibold">
          {title}
        </h2>
        {description ? (
          <p className="text-text-neutral-secondary text-sm">{description}</p>
        ) : null}
      </div>
      {reasons ? (
        <fieldset className="flex flex-col gap-2">
          <legend className="text-text-neutral-primary mb-2 text-sm font-medium">
            {reasons.label}
          </legend>
          <div className="flex flex-wrap gap-2">
            {reasons.options.map((reason) => {
              const selected = reasons.selected.includes(reason.value);
              return (
                <Button
                  key={reason.value}
                  type="button"
                  variant={selected ? "secondary" : "outline"}
                  size="xs"
                  aria-pressed={selected}
                  disabled={isSubmitting}
                  onClick={() => reasons.onToggle(reason.value)}
                >
                  {reason.label}
                </Button>
              );
            })}
          </div>
        </fieldset>
      ) : null}
      <Textarea
        aria-label={detailsLabel}
        placeholder={placeholder}
        value={details}
        maxLength={detailsMaxLength}
        disabled={isSubmitting}
        onChange={(event) => onDetailsChange(event.target.value)}
        textareaSize="lg"
        className="min-h-32"
      />
      {error ? (
        <p role="alert" className="text-text-error text-sm">
          {error}
        </p>
      ) : null}
      {onCancel ? (
        <div className="flex justify-end gap-2">
          <Button
            type="button"
            variant="outline"
            disabled={isSubmitting}
            onClick={onCancel}
          >
            Cancel
          </Button>
          <Button type="submit" disabled={isSubmitting || submitDisabled}>
            {isSubmitting ? "Sending..." : error ? "Retry" : submitLabel}
          </Button>
        </div>
      ) : (
        <Button type="submit" disabled={isSubmitting || submitDisabled}>
          {isSubmitting ? "Sending..." : error ? "Retry" : submitLabel}
        </Button>
      )}
    </form>
  );
}