import { FiArrowUp, FiArrowDown } from 'react-icons/fi';
import { TbRipple } from 'react-icons/tb';
import { type Language, t } from '../translations';
import { useState, useEffect } from 'react';
import { CircularProgress } from './CircularProgress';

interface KpiData {
  level: number;
  levelDiff24h?: number;
  levelDiff7d?: number;
  levelDiff30d?: number;
  inflow: number;
  outflow: number;
  volume: number;
  currentVolume?: number;
  fullness: number;
  storageDiff?: number;
  minDiff?: number;
  minDiffLabelCs?: string;
  minDiffLabelEn?: string;
  avgInflow24h?: number;
  avgOutflow24h?: number;
}

interface Props {
  data: KpiData;
  language: Language;
  lakeName?: string;
  isRiver?: boolean;
}

const KpiCards = ({ data, language, lakeName = 'Lipno 1', isRiver = false }: Props) => {
  const [showTooltip, setShowTooltip] = useState(false);
  const [showMinTooltip, setShowMinTooltip] = useState(false);
  const dict = t[language].kpi;
  const flowDiff = data.inflow - data.outflow;

  // Graf: pokud přibývá → přítok vs průměr přítoku; pokud ubývá → odtok vs průměr odtoku
  let visualFlowValue = 0;
  if (flowDiff >= 0) {
    // Voda přibývá → jak velký je přítok vůči průměru
    if (data.avgInflow24h && data.avgInflow24h > 0) {
      visualFlowValue = Math.min(100, (data.inflow / data.avgInflow24h) * 100);
    } else if (data.inflow > 0) {
      visualFlowValue = 50;
    }
  } else {
    // Voda ubývá → jak velký je odtok vůči průměru
    if (data.avgOutflow24h && data.avgOutflow24h > 0) {
      visualFlowValue = Math.min(100, (data.outflow / data.avgOutflow24h) * 100);
    } else if (data.outflow > 0) {
      visualFlowValue = 50;
    }
  }

  useEffect(() => {
    if (showTooltip) {
      const timer = setTimeout(() => {
        setShowTooltip(false);
      }, 3500);
      return () => clearTimeout(timer);
    }
  }, [showTooltip]);

  useEffect(() => {
    if (showMinTooltip) {
      const timer = setTimeout(() => {
        setShowMinTooltip(false);
      }, 3500);
      return () => clearTimeout(timer);
    }
  }, [showMinTooltip]);

  if (isRiver) {
    return (
      <>
        {/* CARD 1: WATER LEVEL */}
        <div className="kpi-card">
          <div style={{ fontSize: '1rem', color: 'var(--text-muted)', marginBottom: '1rem' }}>
            {dict.waterLevel} {lakeName}
          </div>
          <div style={{ fontSize: '2.5rem', fontWeight: 'bold', color: 'var(--color-cyan)', lineHeight: 1, whiteSpace: 'nowrap' }}>
            {data.level.toFixed(0)} <span style={{ fontSize: '1rem', color: 'var(--text-muted)', fontWeight: 'normal' }}>cm</span>
          </div>
          <div style={{ display: 'flex', flexWrap: 'wrap', gap: '0.3rem', alignContent: 'flex-start', marginTop: '0.5rem' }}>
            <div style={{ display: 'flex', alignItems: 'center', gap: '0.3rem', background: 'rgba(0,0,0,0.15)', padding: '0.2rem 0.4rem', borderRadius: '6px' }}>
              <span style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 'bold' }}>1D</span>
              <span style={{ fontSize: '0.85rem', fontWeight: 'bold', color: (data.levelDiff24h ?? 0) >= 0 ? 'var(--color-green)' : 'var(--color-red)' }}>
                {(data.levelDiff24h ?? 0) > 0 ? '+' : ''}{(data.levelDiff24h ?? 0).toFixed(0)} cm
              </span>
            </div>
            <div style={{ display: 'flex', alignItems: 'center', gap: '0.3rem', background: 'rgba(0,0,0,0.15)', padding: '0.2rem 0.4rem', borderRadius: '6px' }}>
              <span style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 'bold' }}>7D</span>
              <span style={{ fontSize: '0.85rem', fontWeight: 'bold', color: (data.levelDiff7d ?? 0) >= 0 ? 'var(--color-green)' : 'var(--color-red)' }}>
                {(data.levelDiff7d ?? 0) > 0 ? '+' : ''}{(data.levelDiff7d ?? 0).toFixed(0)} cm
              </span>
            </div>
            <div style={{ display: 'flex', alignItems: 'center', gap: '0.3rem', background: 'rgba(0,0,0,0.15)', padding: '0.2rem 0.4rem', borderRadius: '6px' }}>
              <span style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 'bold' }}>30D</span>
              <span style={{ fontSize: '0.85rem', fontWeight: 'bold', color: (data.levelDiff30d ?? 0) >= 0 ? 'var(--color-green)' : 'var(--color-red)' }}>
                {(data.levelDiff30d ?? 0) > 0 ? '+' : ''}{(data.levelDiff30d ?? 0).toFixed(0)} cm
              </span>
            </div>
          </div>
        </div>

        {/* CARD 2: FLOW */}
        <div className="kpi-card">
          <div style={{ fontSize: '1rem', color: 'var(--text-muted)', marginBottom: '1rem' }}>
            {dict.currentFlow}
          </div>
          <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
            <div>
              <div style={{ fontSize: '2.5rem', fontWeight: 'bold', color: 'var(--color-cyan)', lineHeight: 1, whiteSpace: 'nowrap', marginBottom: '0.5rem' }}>
                {data.outflow.toFixed(1)} <span style={{ fontSize: '1.25rem', color: 'var(--text-muted)', fontWeight: 'normal' }}>m³/s</span>
              </div>
              {data.avgOutflow24h !== undefined && (
                <div style={{ fontSize: '0.85rem', color: 'var(--text-muted)' }}>
                  Ø 24h: <span style={{ fontWeight: 'bold', color: 'var(--text-main)' }}>{data.avgOutflow24h.toFixed(1)} m³/s</span>
                </div>
              )}
            </div>
            <div style={{
              width: '70px', height: '70px', borderRadius: '50%',
              backgroundColor: 'rgba(6, 182, 212, 0.1)',
              border: '2px dashed var(--color-cyan)',
              display: 'flex', alignItems: 'center', justifyContent: 'center',
              color: 'var(--color-cyan)', flexShrink: 0
            }}>
              <TbRipple size={36} />
            </div>
          </div>
        </div>
      </>
    );
  }

  return (
    <>
      {/* CARD 1: WATER LEVEL */}
      <div className="kpi-card">
        <div style={{ fontSize: '1rem', color: 'var(--text-muted)', marginBottom: '1rem' }}>
          {dict.level} {lakeName}
        </div>
        <div style={{ fontSize: '2.5rem', fontWeight: 'bold', color: 'var(--color-cyan)', lineHeight: 1, whiteSpace: 'nowrap' }}>
          {data.level.toFixed(2)} <span style={{ fontSize: '1rem', color: 'var(--text-muted)', fontWeight: 'normal' }}>m n. m.</span>
        </div>
        <div style={{ display: 'flex', flexWrap: 'wrap', gap: '0.3rem', alignContent: 'flex-start' }}>
          <div style={{ display: 'flex', alignItems: 'center', gap: '0.3rem', background: 'rgba(0,0,0,0.15)', padding: '0.2rem 0.4rem', borderRadius: '6px' }}>
            <span style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 'bold' }}>1D</span>
            <span style={{ fontSize: '0.85rem', fontWeight: 'bold', color: (data.levelDiff24h ?? 0) >= 0 ? 'var(--color-green)' : 'var(--color-red)' }}>
              {(data.levelDiff24h ?? 0) > 0 ? '+' : ''}{((data.levelDiff24h ?? 0) * 100).toFixed(1)} cm
            </span>
          </div>
          <div style={{ display: 'flex', alignItems: 'center', gap: '0.3rem', background: 'rgba(0,0,0,0.15)', padding: '0.2rem 0.4rem', borderRadius: '6px' }}>
            <span style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 'bold' }}>7D</span>
            <span style={{ fontSize: '0.85rem', fontWeight: 'bold', color: (data.levelDiff7d ?? 0) >= 0 ? 'var(--color-green)' : 'var(--color-red)' }}>
              {(data.levelDiff7d ?? 0) > 0 ? '+' : ''}{((data.levelDiff7d ?? 0) * 100).toFixed(1)} cm
            </span>
          </div>
          <div style={{ display: 'flex', alignItems: 'center', gap: '0.3rem', background: 'rgba(0,0,0,0.15)', padding: '0.2rem 0.4rem', borderRadius: '6px' }}>
            <span style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 'bold' }}>30D</span>
            <span style={{ fontSize: '0.85rem', fontWeight: 'bold', color: (data.levelDiff30d ?? 0) >= 0 ? 'var(--color-green)' : 'var(--color-red)' }}>
              {(data.levelDiff30d ?? 0) > 0 ? '+' : ''}{((data.levelDiff30d ?? 0) * 100).toFixed(1)} cm
            </span>
          </div>
        </div>
      </div>

      {/* CARD 2: FLOW */}
      <div className="kpi-card">
        <div style={{ fontSize: '1rem', color: 'var(--text-muted)', marginBottom: '1rem' }}>
          {dict.flow}
        </div>
        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
          <div style={{ display: 'flex', flexDirection: 'column', gap: '0.25rem', fontSize: '0.85rem' }}>
            <div style={{ fontSize: '0.85rem', color: 'var(--text-muted)', display: 'flex', alignItems: 'center', whiteSpace: 'nowrap' }}>
              <span style={{ display: 'inline-block', width: '8px', height: '8px', borderRadius: '50%', backgroundColor: 'var(--color-green)', marginRight: '6px', flexShrink: 0 }}></span>
              {dict.inflow}: <span style={{ fontWeight: 'bold', color: 'var(--text-main)', marginLeft: '4px' }}>{data.inflow.toFixed(1)} m³/s</span>
            </div>
            {data.avgInflow24h !== undefined && (
              <div style={{ fontSize: '0.75rem', color: 'var(--text-muted)', paddingLeft: '14px', marginTop: '-2px' }}>
                Ø 24h: {data.avgInflow24h.toFixed(1)} m³/s
              </div>
            )}
            <div style={{ fontSize: '0.85rem', color: 'var(--text-muted)', marginTop: '0.25rem', display: 'flex', alignItems: 'center', gap: '0.25rem', whiteSpace: 'nowrap' }}>
              <span style={{ display: 'inline-block', width: '8px', height: '8px', borderRadius: '50%', backgroundColor: 'var(--color-red)', marginRight: '2px', flexShrink: 0 }}></span>
              {dict.outflow}: <span style={{ fontWeight: 'bold', color: 'var(--text-main)' }}>{data.outflow.toFixed(1)} m³/s</span>
              {flowDiff > 0 ? <FiArrowUp color="var(--color-green)" /> : flowDiff < 0 ? <FiArrowDown color="var(--color-red)" /> : null}
            </div>
            {data.avgOutflow24h !== undefined && (
              <div style={{ fontSize: '0.75rem', color: 'var(--text-muted)', paddingLeft: '14px', marginTop: '-2px' }}>
                Ø 24h: {data.avgOutflow24h.toFixed(1)} m³/s
              </div>
            )}
          </div>

          {/* Flow Gauge using CircularProgress */}
          <div style={{ position: 'relative', width: '70px', height: '70px', flexShrink: 0, display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
            <div style={{ position: 'absolute', top: 0, left: 0 }}>
              <CircularProgress
                value={visualFlowValue || 0.1}
                size={70}
                strokeWidth={6}
                hideText={true}
                color={flowDiff >= 0 ? 'var(--color-green)' : 'var(--color-red)'}
              />
            </div>
            <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', color: flowDiff >= 0 ? 'var(--color-green)' : 'var(--color-red)', fontWeight: 'bold', lineHeight: 1.2 }}>
              <span style={{ fontSize: '0.85rem' }}>{flowDiff > 0 ? '+' : ''}{flowDiff.toFixed(1)}</span>
              <span style={{ fontSize: '0.6rem', opacity: 0.8 }}>m³/s</span>
            </div>
          </div>
        </div>
      </div>

      {/* CARD 3: CAPACITY */}
      <div className="kpi-card" style={{ display: 'flex', flexDirection: 'column' }}>
        <div style={{ fontSize: '1rem', color: 'var(--text-muted)', marginBottom: '1rem', display: 'flex', alignItems: 'center', gap: '0.4rem', position: 'relative' }}>
          {dict.fullness}
          <span
            onClick={() => setShowTooltip(!showTooltip)}
            style={{ cursor: 'pointer', fontSize: '0.85rem', opacity: 0.6, padding: '0 4px' }}
          >
            ⓘ
          </span>
          {showTooltip && (
            <div
              onClick={() => setShowTooltip(false)}
              style={{
                position: 'absolute',
                bottom: '100%',
                left: '50%',
                transform: 'translateX(-50%)',
                marginBottom: '8px',
                backgroundColor: 'var(--bg-card)',
                border: '1px solid var(--border-color)',
                padding: '0.75rem',
                borderRadius: '8px',
                width: '250px',
                zIndex: 100,
                boxShadow: '0 4px 12px rgba(0,0,0,0.5)',
                color: 'var(--text-main)',
                fontSize: '0.85rem',
                lineHeight: 1.4,
                cursor: 'pointer'
              }}>
              {language === 'cs' ? "Rozdíl mezi aktuální hladinou a hladinou zásobního prostoru (důležité pro jachtaře a rekreaci)." : "Difference between current water level and storage space level (important for sailing and recreation)."}
            </div>
          )}
        </div>

        <div style={{ position: 'relative', display: 'flex', justifyContent: 'center', alignItems: 'center', height: '130px', marginTop: '-1rem' }}>

          {/* Circular Progress Ring */}
          <div style={{ position: 'absolute', top: '50%', left: '50%', transform: 'translate(-50%, -50%)', width: '130px', height: '130px', zIndex: 1 }}>
            <CircularProgress value={data.fullness} size={130} strokeWidth={10} hideText={true} />
          </div>

          {/* Percentage Text */}
          <div style={{ position: 'absolute', top: '24px', left: '50%', transform: 'translateX(-50%)', zIndex: 10, fontSize: '0.95rem', fontWeight: 'bold', color: 'var(--text-main)', textShadow: '0 2px 10px rgba(0,0,0,0.5)' }}>
            {data.fullness > 0 ? `${data.fullness.toFixed(1)}%` : 'N/A'}
          </div>

          {/* Center Data: Main Level Difference */}
          <div style={{ position: 'absolute', top: '50%', left: '50%', transform: 'translate(-50%, -50%)', marginTop: '-4px', zIndex: 10, display: 'flex', justifyContent: 'center', alignItems: 'center' }}>
            <span style={{ fontSize: '1.9rem', fontWeight: 'bold', color: data.storageDiff && data.storageDiff < 0 ? 'var(--color-red)' : 'var(--color-cyan)', lineHeight: 1, textShadow: '0 2px 10px rgba(0,0,0,0.5)' }}>
              {data.storageDiff !== undefined && data.storageDiff !== 0 ? (data.storageDiff > 0 ? `+${data.storageDiff.toFixed(2)}` : `${data.storageDiff.toFixed(2)}`) : ''}
            </span>
            <span style={{ position: 'absolute', left: '100%', bottom: '0.15rem', marginLeft: '0.2rem', fontSize: '0.8rem', color: data.storageDiff && data.storageDiff < 0 ? 'var(--color-red)' : 'var(--color-cyan)', whiteSpace: 'nowrap' }}>m</span>
          </div>

          {/* Bottom Inside Data: Min Diff */}
          {data.minDiff !== undefined && (
            <div
              style={{ position: 'absolute', bottom: '26px', left: '50%', transform: 'translateX(-50%)', zIndex: 20, fontSize: '0.9rem', fontWeight: 'bold', color: data.minDiff < 0.5 ? 'var(--color-red)' : 'var(--color-green)', cursor: 'pointer', textShadow: '0 2px 10px rgba(0,0,0,0.5)', display: 'flex', alignItems: 'center', gap: '0.25rem' }}
              onClick={() => setShowMinTooltip(!showMinTooltip)}
            >
              <span>{data.minDiff.toFixed(2)} m</span>
              <span style={{ fontSize: '0.75rem', opacity: 0.7, fontWeight: 'normal' }}>ⓘ</span>
              {showMinTooltip && (
                <div
                  onClick={(e) => { e.stopPropagation(); setShowMinTooltip(false); }}
                  style={{
                    position: 'absolute',
                    top: '100%',
                    left: '50%',
                    transform: 'translateX(-50%)',
                    marginTop: '8px',
                    backgroundColor: 'var(--bg-card)',
                    border: '1px solid var(--border-color)',
                    padding: '0.75rem',
                    borderRadius: '8px',
                    width: '220px',
                    zIndex: 100,
                    boxShadow: '0 4px 12px rgba(0,0,0,0.5)',
                    color: 'var(--text-main)',
                    fontSize: '0.85rem',
                    lineHeight: 1.4,
                    cursor: 'pointer',
                    whiteSpace: 'normal',
                    textAlign: 'center',
                    fontWeight: 'normal',
                    textShadow: 'none'
                  }}>
                  {language === 'cs' ? (data.minDiffLabelCs || 'K minimu') : (data.minDiffLabelEn || 'To min')}
                </div>
              )}
            </div>
          )}
        </div>

        {/* Bottom Elements */}
        <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', gap: '0.5rem', marginTop: '0.2rem' }}>
          <div style={{ display: 'flex', alignItems: 'baseline', gap: '0.4rem', fontSize: '0.85rem', whiteSpace: 'nowrap' }}>
            <span style={{ color: 'var(--text-muted)' }}>{dict.volume}:</span>
            <span style={{ fontWeight: 'bold', color: 'var(--text-main)' }}>
              {data.currentVolume !== undefined && data.volume > 0 ? `${data.currentVolume.toFixed(1)} / ` : ''}{data.volume.toFixed(1)} mil. m³
            </span>
          </div>
        </div>

      </div>
    </>
  );
};

export default KpiCards;
