// ComponentsOverview.tsx — Components 탭 Overview 카드 그리드

import type { DesignTheme } from './designTheme';

// ---------- 타입 ----------

interface OverviewCard {
  id: string;
  label: string;
  thumbnail: (isDark: boolean) => React.ReactNode;
}

// ---------- 썸네일 구현 ----------

const ButtonsThumbnail = ({ isDark }: { isDark: boolean }) => {
  const accent = isDark ? '#4cd7f6' : '#06b6d4';
  const secondaryBg = isDark ? 'rgba(255,255,255,0.07)' : '#e2e8f0';
  const secondaryText = isDark ? 'rgba(223,226,243,0.85)' : '#475569';
  const outlineBorder = isDark ? 'rgba(76,215,246,0.40)' : 'rgba(6,182,212,0.50)';

  const buttons = [
    { label: 'Primary', bg: accent, border: accent, color: isDark ? '#0a0e1a' : '#ffffff' },
    { label: 'Secondary', bg: secondaryBg, border: 'transparent', color: secondaryText },
    { label: 'Outline', bg: 'transparent', border: outlineBorder, color: accent },
  ];

  return (
    <div className="w-full h-full flex flex-col items-center justify-center gap-3 px-8">
      {buttons.map(({ label, bg, border, color }) => (
        <div
          key={label}
          className="w-full rounded flex items-center justify-center"
          style={{
            height: '32px',
            backgroundColor: bg,
            border: `1.5px solid ${border}`,
            color,
            fontSize: '12px',
            fontWeight: 600,
          }}
        >
          {label}
        </div>
      ))}
    </div>
  );
};

const TextInputsThumbnail = ({ isDark }: { isDark: boolean }) => {
  const labelColor = isDark ? 'rgba(194,198,214,0.80)' : '#64748b';
  const inputBg = isDark ? 'rgba(255,255,255,0.04)' : '#ffffff';
  const inputBorder = isDark ? 'rgba(255,255,255,0.12)' : '#cbd5e1';
  const placeholderColor = isDark ? 'rgba(140,144,159,0.60)' : '#94a3b8';
  const accentBorder = isDark ? '#4cd7f6' : '#06b6d4';

  return (
    <div className="w-full h-full flex flex-col items-center justify-center gap-3 px-8">
      {/* 라벨 + 기본 입력 */}
      <div className="w-full flex flex-col gap-1.5">
        <div
          className="rounded"
          style={{ height: '9px', width: '48px', backgroundColor: labelColor, opacity: 0.6 }}
        />
        <div
          className="w-full rounded flex items-center px-3"
          style={{
            height: '30px',
            backgroundColor: inputBg,
            border: `1.5px solid ${inputBorder}`,
          }}
        >
          <div
            className="rounded"
            style={{
              height: '8px',
              width: '70px',
              backgroundColor: placeholderColor,
              opacity: 0.5,
            }}
          />
        </div>
      </div>
      {/* 포커스 상태 입력 */}
      <div className="w-full flex flex-col gap-1.5">
        <div
          className="rounded"
          style={{ height: '9px', width: '56px', backgroundColor: labelColor, opacity: 0.6 }}
        />
        <div
          className="w-full rounded flex items-center px-3"
          style={{
            height: '30px',
            backgroundColor: inputBg,
            border: `1.5px solid ${accentBorder}`,
            boxShadow: isDark
              ? `0 0 0 2px rgba(76,215,246,0.15)`
              : `0 0 0 2px rgba(6,182,212,0.12)`,
          }}
        >
          <div
            className="rounded"
            style={{
              height: '8px',
              width: '90px',
              backgroundColor: isDark ? 'rgba(223,226,243,0.50)' : '#475569',
              opacity: 0.7,
            }}
          />
        </div>
      </div>
    </div>
  );
};

// ---------- 카드 정의 ----------

const OVERVIEW_CARDS: OverviewCard[] = [
  {
    id: 'buttons',
    label: 'Buttons',
    thumbnail: (isDark) => <ButtonsThumbnail isDark={isDark} />,
  },
  {
    id: 'text-field',
    label: 'Text Field',
    thumbnail: (isDark) => <TextInputsThumbnail isDark={isDark} />,
  },
];

// ---------- Props ----------

interface ComponentsOverviewProps {
  theme: DesignTheme;
  onNavigate: (id: string) => void;
}

// ---------- 컴포넌트 ----------

const ComponentsOverview = ({ theme, onNavigate }: ComponentsOverviewProps) => {
  const t = theme;
  const isDark = t.mode === 'dark';

  const cardBg = isDark ? 'rgba(255,255,255,0.03)' : '#f5f5f5';
  const cardBorder = isDark ? 'rgba(255,255,255,0.06)' : '#e5e5e5';
  const thumbnailBorderBottom = isDark ? 'rgba(255,255,255,0.06)' : '#e0e0e0';

  return (
    <div className="pt-24 px-12 pb-16 max-w-5xl flex flex-col gap-12">
      {/* ── 헤더 영역 ── */}
      <div className="flex flex-col gap-3">
        <span
          className="font-mono text-xs font-semibold uppercase"
          style={{ letterSpacing: '1.4px', color: t.textAccent }}
        >
          Components
        </span>
        <h1 className="font-sans text-4xl font-bold leading-tight" style={{ color: t.textPrimary }}>
          Overview
        </h1>
        <p className="font-korean text-sm leading-6" style={{ color: t.textSecondary }}>
          재사용 가능한 UI 컴포넌트 카탈로그입니다.
        </p>
      </div>

      {/* ── 3열 카드 그리드 ── */}
      <div className="grid gap-5" style={{ gridTemplateColumns: 'repeat(3, 1fr)' }}>
        {OVERVIEW_CARDS.map((card) => (
          <div
            key={card.id}
            className="rounded-lg border border-solid flex flex-col cursor-pointer transition-all duration-200"
            style={{
              backgroundColor: cardBg,
              borderColor: cardBorder,
            }}
            onClick={() => onNavigate(card.id)}
            onMouseEnter={(e) => {
              const el = e.currentTarget;
              el.style.transform = 'scale(1.025)';
              el.style.boxShadow = isDark
                ? '0 8px 24px rgba(0,0,0,0.35)'
                : '0 6px 18px rgba(0,0,0,0.10)';
              el.style.borderColor = isDark ? 'rgba(76,215,246,0.22)' : 'rgba(6,182,212,0.28)';
            }}
            onMouseLeave={(e) => {
              const el = e.currentTarget;
              el.style.transform = 'scale(1)';
              el.style.boxShadow = 'none';
              el.style.borderColor = cardBorder;
            }}
          >
            {/* 썸네일 영역 */}
            <div
              className="h-48 rounded-t-lg overflow-hidden"
              style={{
                borderBottom: `1px solid ${thumbnailBorderBottom}`,
              }}
            >
              {card.thumbnail(isDark)}
            </div>

            {/* 카드 라벨 */}
            <div className="px-5 py-4">
              <span className="font-sans text-sm font-semibold" style={{ color: t.textPrimary }}>
                {card.label}
              </span>
            </div>
          </div>
        ))}
      </div>
    </div>
  );
};

export default ComponentsOverview;
