"use client";

import { useMemo } from "react";
import { IoAlert, IoCheckmark } from "react-icons/io5";
import { getLocalSectionProgress, getStoredAge } from "./progress-helper";
import {
  getQuestionListItems,
  isQuestionListItemVisibleForProfile,
  type QuestionListItem,
} from "@/data/question-data";
import { toFrontendSlug } from "@/data/section-slug-map";
import { useMarriageProfileQuery } from "@/hooks/marriage/use-profile-main";
import { useMarriageSectionsQuery } from "@/hooks/marriage/use-sections";
import { useI18n } from "@/translations/provider";

type RequiredStepsCardProps = {
  items?: QuestionListItem[];
  progressBySlug?: Map<string, number>;
};

type RequiredStep = {
  slug: string;
  required: boolean;
  progress: number;
};

function getRequiredStepStats(steps: RequiredStep[]) {
  const requiredSteps = steps.filter((step) => step.required);
  const completedSteps = requiredSteps.filter((step) => step.progress >= 100);

  return {
    completed: completedSteps.length,
    total: requiredSteps.length,
  };
}

export default function RequiredStepsCard({
  items,
  progressBySlug,
}: RequiredStepsCardProps = {}) {
  const { dictionary: t, locale } = useI18n();
  const { data: profile } = useMarriageProfileQuery();
  const { data: sections } = useMarriageSectionsQuery();

  const questionListItems = useMemo(
    () =>
      items ??
      getQuestionListItems(locale).filter((item) =>
        isQuestionListItemVisibleForProfile(item, {
          gender: profile?.gender,
        }),
      ),
    [items, locale, profile?.gender],
  );

  const steps: RequiredStep[] = useMemo(() => {
    const age = getStoredAge();
    type SectionType = NonNullable<typeof sections>[number];
    const sectionMap = new Map<string, SectionType>();
    sections?.forEach((s) => {
      sectionMap.set(toFrontendSlug(s.slug), s);
      sectionMap.set(s.slug, s);
    });

    return questionListItems.map((item) => {
      const localProgress = getLocalSectionProgress(item, profile, age);
      const section = sectionMap.get(item.slug);

      let progress = 0;
      if (localProgress !== null) {
        progress = localProgress;
      } else if (
        progressBySlug &&
        typeof progressBySlug.get(item.slug) === "number"
      ) {
        progress = progressBySlug.get(item.slug) ?? 0;
      } else if (item.slug === "family_marital_history" && sections) {
        const fbSec = sections.find((s) => s.slug === "family_background");
        const mhSec = sections.find((s) => s.slug === "marital_history");
        if (fbSec || mhSec) {
          const fbTotal = fbSec?.total_steps ?? 6;
          const fbCurrent = fbSec
            ? Math.round((fbSec.completion_percent / 100) * fbTotal)
            : 0;
          const mhTotal = mhSec?.total_steps ?? 6;
          const mhCurrent = mhSec
            ? Math.round((mhSec.completion_percent / 100) * mhTotal)
            : 0;
          progress =
            fbTotal + mhTotal > 0
              ? Math.max(
                  0,
                  Math.min(
                    100,
                    Math.round(
                      ((fbCurrent + mhCurrent) / (fbTotal + mhTotal)) * 100,
                    ),
                  ),
                )
              : 0;
        }
      } else if (section) {
        progress = Math.max(
          0,
          Math.min(100, Math.round(section.completion_percent)),
        );
      } else {
        progress = item.progress;
      }

      return {
        slug: item.slug,
        required: Boolean(item.required),
        progress,
      };
    });
  }, [questionListItems, progressBySlug, sections, profile]);

  const { completed, total } = getRequiredStepStats(steps);
  const completion = total > 0 ? Math.round((completed / total) * 100) : 0;
  const isCompleted = total > 0 && completed === total;

  return (
    <section
      aria-label="Required steps progress"
      className="rounded-[15px] bg-[#40506A] p-4 text-white shadow-[0_18px_34px_rgba(38,52,73,0.16)]"
    >
      <div className="flex items-center justify-between gap-5">
        <div className="min-w-0 flex-1">
          <div className="flex items-center gap-3">
            <span className="flex h-[24px] w-[24px] shrink-0 items-center justify-center rounded-full bg-white text-[#40506A]">
              {isCompleted ? (
                <IoCheckmark aria-hidden="true" className="text-[16px]" />
              ) : (
                <IoAlert aria-hidden="true" className="text-[16px]" />
              )}
            </span>
            <h2 className="group-16 leading-none font-bold tracking-[-0.02em]">
              {t.questions.requiredSteps}
            </h2>
          </div>

          <p className="mt-2.5 max-w-[220px] group-12 leading-[1.25] font-medium text-white/80">
            {isCompleted
              ? t.questions.requiredStepsDescriptionCompleted
              : t.questions.requiredStepsDescription}
          </p>
        </div>

        <div
          role="img"
          aria-label={t.questions.requiredStepsProgress
            .replace("{completed}", String(completed))
            .replace("{total}", String(total))}
          className="relative flex h-[60px] w-[60px] shrink-0 items-center justify-center rounded-full"
          style={{
            background: `conic-gradient(#FFFFFF ${completion}%,rgba(255,255,255,0.24) 0)`,
          }}
        >
          <div className="absolute inset-[6px] rounded-full bg-[#40506A]" />
          <span className="relative group-14 leading-none font-bold tracking-[-0.02em]">
            {completed}/{total}
          </span>
        </div>
      </div>
    </section>
  );
}