"use client";

import { ExplanationUiFont } from "./explanation-ui-font";
import type { QuestionField } from "@/lib/schema-adapter";
import { useQuestionAnswers } from "./question-answer-storage";
import QuestionTitle from "./question-title";

type QuestionRadioProps = {
  question: QuestionField;
  disabled?: boolean;
};

export function QuestionRadio({
  question,
  disabled,
}: QuestionRadioProps) {
  const options = question.options || [];
  const { getAnswerValue, setAnswerValue } = useQuestionAnswers();
  const value = getAnswerValue(question);

  if (options.length === 0) {
    return null;
  }

  // Render horizontally only for 2-option binary choices (e.g. Yes/No, Male/Female)
  const isShortOptions =
    options.length <= 2 &&
    options.every((opt) => String(opt.label || opt.value || "").length <= 10);

  return (
    <div
      className={[
        "flex w-full flex-col gap-3.5 transition-opacity duration-200",
        disabled ? "pointer-events-none opacity-30" : "",
      ].join(" ")}
    >
      <QuestionTitle question={question} />

      <div
        className={
          isShortOptions
            ? "flex flex-row flex-wrap items-center gap-3 pt-1"
            : "flex flex-col gap-3.5 pt-1"
        }
      >
        {options.map((option) => {
          const optionId = `question-${question.id}-${option.id}`;
          const isSelected = String(value) === option.id;

          return (
            <label
              key={option.id}
              htmlFor={optionId}
              className={[
                "cursor-pointer rounded-[16px] font-semibold text-[15px] transition-all duration-200 active:scale-[0.99] flex items-center gap-3",
                isShortOptions
                  ? "flex-1 min-w-[90px] px-5 py-3.5 text-center justify-center"
                  : "w-full px-5 py-4 text-start leading-snug",
                isSelected
                  ? "bg-[#F0445B] text-white shadow-[0_8px_20px_rgba(240,68,91,0.25)]"
                  : "bg-[#FAFAFA] text-[#181818] hover:bg-white shadow-[0_2px_6px_rgba(0,0,0,0.03)] border border-[#F0EDED]",
              ].join(" ")}
            >
              <input
                type="radio"
                id={optionId}
                name={`question-${question.id}`}
                value={option.id}
                checked={isSelected}
                disabled={disabled}
                onChange={() => setAnswerValue(question, option.id)}
                className="sr-only"
              />
              {!isShortOptions && (
                <div
                  className={[
                    "size-[18px] shrink-0 rounded-full border-[2px] transition-all flex items-center justify-center",
                    isSelected
                      ? "border-white bg-white text-[#F0445B]"
                      : "border-[#D0D5DD] bg-white text-transparent",
                  ].join(" ")}
                >
                  {isSelected && (
                    <div className="size-[8px] rounded-full bg-current" />
                  )}
                </div>
              )}
              {(option.label || "").includes(" - ") ? (
                (() => {
                  const parts = (option.label || "").split(" - ");
                  const title = parts[0];
                  const description = parts.slice(1).join(" - ");
                  return (
                    <span className="flex flex-col gap-1 text-start flex-1">
                      <span className="font-bold">{title}</span>
                      <ExplanationUiFont
                        textColor={
                          isSelected ? "text-white/85" : "text-[#667085]"
                        }
                      >
                        {description}
                      </ExplanationUiFont>
                    </span>
                  );
                })()
              ) : (
                <span className="flex-1">{option.label || option.value || ""}</span>
              )}
            </label>
          );
        })}
      </div>
    </div>
  );
}

export default QuestionRadio;