// src/components/ScreenSecond/index.tsx
import styled from "styled-components";
import fallbackLogo from "imgs/logo.svg";
import arrowTop from "imgs/arrow_top.svg";
import {
  s_f_Text18_400,
  s_Text18_400 as Text18_400,
  s_Text24_700 as Text24_700,
  s_Text40_700 as Text40_700,
  s_Text14_400 as Text14_400,
} from "../Typography";
import { useSingleton } from "cms/factory";
import { AsyncReveal } from "../AsyncReveal";

/* ===================== TYPES & GQL ===================== */

type Row = {
  id: string;
  value: string;
  label: string;
  trend: "none" | "up" | "down";
  order: number;
};

type Section = {
  id: string;
  title?: string | null;
  description?: string | null;
  logo?: { url?: string | null } | null;
  footnote?: string | null;
  rows: Row[];
};

const SELECTION = `
  id
  title
  description
  logo { url }
  footnote
  rows(orderBy: { order: asc }) {
    id
    value
    label
    trend
    order
  }
`;

/* ===================== UTILS ===================== */

function chunkInto<T>(arr: T[], size: number): T[][] {
  const out: T[][] = [];
  for (let i = 0; i < arr.length; i += size) out.push(arr.slice(i, i + size));
  return out;
}

/* ===================== STYLES ===================== */

const ScreenSecondBlock = styled.div`
  width: 100%;
  max-width: 1380px;
  padding: 64px 10px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  @media (max-width: 768px) {
    padding: 10px 10px;
  }
`;

const ContentCard = styled.div`
  width: 90%;
  max-width: 1200px;
  background: #fff;
  border-radius: 16px;
  padding: 64px 0;
  padding-bottom: 0;
  display: flex;
  flex-direction: column;

  @media (max-width: 768px) {
    width: 100%;
    padding: 10px 10px;
  }
`;

const HeaderRow = styled.div`
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;

  @media (max-width: 768px) {
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 0;
  }
`;

const TitleRow = styled.div`
  display: inline;
  font-size: 0; /* убираем промежутки у inline-children */
`;

const TitleBlock = styled.div`
  max-width: 720px;
  display: flex;
  flex-direction: column;
`;

const LogoBlock = styled.div`
  display: flex;
  align-items: center;
  height: 100%;
  margin-left: 30px;

  img {
    min-width: 185px;
    height: 56px;
    min-height: 56px;
  }

  @media (max-width: 768px) {
    width: 100%;
    justify-content: center;
    margin-left: 0;
    margin-bottom: 32px;
  }
`;

const FinanceRow = styled.div`
  display: flex;
  justify-content: space-between;
  text-align: center;
  margin: 24px 0;

  @media (max-width: 768px) {
    flex-direction: row;
    gap: 16px;
  }
`;

const FinanceBlock = styled.div`
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;

  @media (max-width: 768px) {
    width: 100%;
  }
`;

const ValueRow = styled.div`
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 8px;
`;

const Divider = styled.div`
  width: 100%;
  height: 1px;
  background: #e5e7eb;
  margin: 24px 0;
`;


const Arrow = styled.img`
  transform: ${({ $down }) => ($down ? "rotate(180deg)" : "none")};
`;


/* ===================== COMPONENT ===================== */

function ScreenSecond() {
  const { data: section, loading, error } = useSingleton(
    "ScreenSecondSection",
    SELECTION
  );

  const groups = chunkInto(section?.rows ?? [], 3);
  const logoSrc = section?.logo?.url || fallbackLogo;

  return (
    <ScreenSecondBlock id="holding">
      <ContentCard>
        <AsyncReveal loading={loading} error={error} stagger={0.08} from={12}>
          {/* Header */}
          <HeaderRow>
            <TitleBlock>
              <TitleRow style={{ marginBottom: 24 }}>
                {section?.title && <Text40_700>{section.title}</Text40_700>}
              </TitleRow>
              {section?.description && (
                <s_f_Text18_400>{section.description}</s_f_Text18_400>
              )}
            </TitleBlock>
            <LogoBlock>
              <img src={logoSrc} alt="Company logo" />
            </LogoBlock>
          </HeaderRow>

          {/* Rows in groups of 3 with Divider */}
          {groups.map((group, gi) => (
            <div key={`g-${gi}`}>
              <FinanceRow>
                {group.map((item) => (
                  <FinanceBlock key={item.id}>
                    <ValueRow>
                      <Text24_700>{item.value}</Text24_700>
                      {item.trend !== "none" && (
                        <Arrow
                          src={arrowTop}
                          alt={item.trend}
                          height={16}
                          $down={item.trend === "down"}
                        />
                      )}
                    </ValueRow>
                    <Text18_400>{item.label}</Text18_400>
                  </FinanceBlock>
                ))}
              </FinanceRow>
              {gi < groups.length - 1 && <Divider />}
            </div>
          ))}

          {/* Footnote */}
          {section?.footnote && <Text14_400>{section.footnote}</Text14_400>}
        </AsyncReveal>
      </ContentCard>
    </ScreenSecondBlock>
  );
}

export default ScreenSecond;