/**
 * Toolbar hover tooltips / סרגל כלים עם טולטיפים  (student motion library, id "cur-hover-tooltip")
 * Use: copy this file into your Remotion project and register it in your Root:
 *   <Composition id="LibCurHoverTooltip" component={CurHoverTooltip} width={1920} height={1080} fps={30}
 *     durationInFrames={144} defaultProps={hoverTooltipDefaults} />
 * Render transparent: npx remotion render src/index.ts LibCurHoverTooltip out.webm --codec=vp9 --pixel-format=yuva420p --image-format=png --props=props.json
 * Change the words / colours / side in props.json (same keys as hoverTooltipDefaults). A vertical video: width 1080, height 1920.
 */
// ---------------------------------------------------------------- helpers (shared by every library scene)
// Conventions: 1920x1080, 30 fps, transparent background. Sizes follow the frame's short side, so 1080x1920 works too.
// Common props: duration (s), side 'right' | 'left' | 'center', x / y (centre in % of the frame, override side),
// scale, font (a CSS font-family; default Heebo). Time is in seconds; the first and last frames are empty.
import React from 'react';
import {AbsoluteFill, Easing, useCurrentFrame, useVideoConfig} from 'remotion';
import {loadFont as loadHeebo} from '@remotion/google-fonts/Heebo';


const heebo = loadHeebo('normal', {weights: ['400', '500', '700', '800', '900'], subsets: ['hebrew', 'latin']});
/** Hebrew + Latin font (Google "Heebo"). props.font overrides it per scene. */
export const HEEBO = `${heebo.fontFamily}, "Helvetica Neue", Arial, sans-serif`;
export const MONO = 'ui-monospace, "SF Mono", Menlo, Consolas, monospace';

export type Side = 'right' | 'left' | 'center';
export type Base = {duration?: number; side?: Side; x?: number; y?: number; scale?: number; font?: string};

export const clamp01 = (x: number) => Math.min(1, Math.max(0, x));
/** 0..1 progress of t between a and b (seconds) */
export const p01 = (t: number, a: number, b: number) => clamp01((t - a) / (b - a));
export const lerp = (a: number, b: number, k: number) => a + (b - a) * k;
export const outE = Easing.bezier(0.16, 1, 0.3, 1); // fast out, long settle
export const inOut = Easing.bezier(0.65, 0, 0.35, 1);
export const inE = Easing.bezier(0.55, 0, 0.9, 0.45);
export const backOut = (x: number, s = 1.7) => (x <= 0 ? 0 : x >= 1 ? 1 : 1 + (s + 1) * Math.pow(x - 1, 3) + s * Math.pow(x - 1, 2));
/** Damped spring 0 -> 1 starting at t0 (closed form, so any frame computes on its own). */
export const spr = (t: number, t0: number, freq = 16, damp = 9) => {
  const x = t - t0;
  return x <= 0 ? 0 : 1 - Math.exp(-damp * x) * Math.cos(freq * x);
};
/** Deterministic pseudo random 0..1 */
export const rnd = (i: number, seed = 1) => {
  const v = Math.sin(i * 127.1 + seed * 311.7) * 43758.5453;
  return v - Math.floor(v);
};
export const isHe = (s: string) => /[֐-׿]/.test(s);
export const dirOf = (s: string): 'rtl' | 'ltr' => (isHe(s) ? 'rtl' : 'ltr');
/** "#a1b2c3" / "#abc" + alpha -> rgba() */
export const rgba = (hex: string, a = 1) => {
  let h = hex.replace('#', '');
  if (h.length === 3) h = h.split('').map((ch) => ch + ch).join('');
  const n = parseInt(h.slice(0, 6), 16);
  return `rgba(${(n >> 16) & 255},${(n >> 8) & 255},${n & 255},${a})`;
};
export const useT = () => {
  const f = useCurrentFrame();
  const {fps} = useVideoConfig();
  return f / fps;
};
/** 12345 -> "12,345" */
export const fmt = (n: number, sep = ',') => Math.round(n).toString().replace(/\B(?=(\d{3})+(?!\d))/g, sep);

/** Arrive (scale up out of a blur) and leave (shrink into a blur) for a whole group. */
export const life = (t: number, total: number, inDur = 0.45, outDur = 0.35) => {
  const a = p01(t, 0, inDur);
  const z = inOut(p01(t, total - outDur, total));
  return {
    opacity: clamp01(a * 2.2) * (1 - z),
    scale: lerp(0.82, 1, backOut(a, 1.4)) * (1 - 0.08 * z),
    blur: (1 - outE(a)) * 12 + z * 10,
    style: {} as React.CSSProperties,
  };
};
export const lifeStyle = (t: number, total: number, inDur = 0.45, outDur = 0.35): React.CSSProperties => {
  const l = life(t, total, inDur, outDur);
  return {opacity: l.opacity, transform: `scale(${l.scale})`, filter: l.blur > 0.2 ? `blur(${l.blur}px)` : undefined};
};

/**
 * Places a w x h box (design pixels of a 1080-high frame) on its side of the frame and scales it with the frame's
 * short side and props.scale. Children are positioned inside the box.
 */
export const Stage: React.FC<{p: Base; w: number; h: number; children: React.ReactNode; style?: React.CSSProperties; defSide?: Side}> = ({p, w, h, children, style, defSide = 'center'}) => {
  const {width: W, height: H} = useVideoConfig();
  const u = (Math.min(W, H) / 1080) * (p.scale ?? 1);
  const side = p.side ?? defSide;
  const cx = ((p.x ?? (side === 'right' ? 73 : side === 'left' ? 27 : 50)) / 100) * W;
  const cy = ((p.y ?? 50) / 100) * H;
  return (
    <AbsoluteFill style={{pointerEvents: 'none'}}>
      <div style={{position: 'absolute', left: cx - w / 2, top: cy - h / 2, width: w, height: h, transform: `scale(${u})`, transformOrigin: '50% 50%', ...style}}>
        {children}
      </div>
    </AbsoluteFill>
  );
};

/** Soft two-layer drop shadow for cards on any footage */
export const SHADOW = '0 22px 48px rgba(12,12,20,0.22), 0 4px 12px rgba(12,12,20,0.14)';

/** The classic arrow cursor; (x, y) = its tip; press 0..1 = mouse down. */
export const Cursor: React.FC<{x: number; y: number; press?: number; size?: number; fill?: string; stroke?: string}> = ({x, y, press = 0, size = 1.6, fill = '#111', stroke = '#fff'}) => {
  const s = size * (1 - 0.12 * press);
  return (
    <svg viewBox="-2 -2 17 25" width={17 * s * 1.35} height={25 * s * 1.35} style={{position: 'absolute', left: x - 2.7 * s, top: y - 2.7 * s, overflow: 'visible', filter: 'drop-shadow(0 3px 4px rgba(0,0,0,0.35))'}}>
      <path d="M0 0 L0 17.4 L4 13.7 L6.9 20.4 L9.6 19.2 L6.8 12.8 L12.4 12.8 Z" fill={fill} stroke={stroke} strokeWidth={1.1} strokeLinejoin="round" />
    </svg>
  );
};

/** A four-point sparkle centred on (0,0) in a -50..50 box. */
export const SPARK_PATH = 'M0 -50 C 6 -14 14 -6 50 0 C 14 6 6 14 0 50 C -6 14 -14 6 -50 0 C -14 -6 -6 -14 0 -50 Z';
export const Spark: React.FC<{x: number; y: number; size: number; color: string; rotate?: number; opacity?: number; glow?: boolean}> = ({x, y, size, color, rotate = 0, opacity = 1, glow = false}) => (
  <svg viewBox="-50 -50 100 100" width={size} height={size} style={{position: 'absolute', left: x - size / 2, top: y - size / 2, transform: `rotate(${rotate}deg)`, opacity, overflow: 'visible', filter: glow ? `drop-shadow(0 0 ${size * 0.15}px ${color})` : undefined}}>
    <path d={SPARK_PATH} fill={color} />
  </svg>
);
// ---------------------------------------------------------------- the scene

/**
 * Hover tooltips: a floating toolbar slides up, the cursor hops from tool to tool and each one lights up with a
 * tooltip that springs out above it; the last tool gets clicked, turns on and its tooltip changes. 4.8 s.
 * Inspired by animated CSS tooltips (CodePen: bouncing tool-tip, scale-in tooltip), redesigned: a toolbar tour with
 * a cursor and an "on" state.
 */
export type HoverTooltipProps = Base & {
  tools: {icon: 'cut' | 'text' | 'music' | 'export' | 'zoom' | 'magic'; label: string}[];
  clickedLabel: string;
  accent: string;
  bar: string;
  tip: string;
};
export const hoverTooltipDefaults: HoverTooltipProps = {
  duration: 4.8,
  side: 'right',
  tools: [
    {icon: 'cut', label: 'חיתוך'},
    {icon: 'text', label: 'כתוביות'},
    {icon: 'music', label: 'מוזיקה'},
    {icon: 'magic', label: 'עריכה אוטומטית'},
  ],
  clickedLabel: 'עובד על זה...',
  accent: '#7C5CFF',
  bar: '#ffffff',
  tip: '#16151a',
};

const ICONS: Record<string, string> = {
  cut: 'M6 9a3 3 0 1 0 0-6 3 3 0 0 0 0 6zM6 21a3 3 0 1 0 0-6 3 3 0 0 0 0 6zM20 4L8.1 15.9M14.5 14.5L20 20M8.1 8.1L12 12',
  text: 'M4 6V4h16v2M12 4v16M9 20h6',
  music: 'M9 18V5l11-2v13M9 18a3 3 0 1 1-6 0 3 3 0 0 1 6 0zM20 16a3 3 0 1 1-6 0 3 3 0 0 1 6 0z',
  export: 'M12 15V3M7 8l5-5 5 5M5 14v5a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2v-5',
  zoom: 'M11 18a7 7 0 1 0 0-14 7 7 0 0 0 0 14zM20 20l-4-4M11 8v6M8 11h6',
  magic: 'M15 4V2M15 16v-2M8 9h2M20 9h2M17.8 11.8L19 13M17.8 6.2L19 5M3 21l9-9M12.2 6.2L11 5',
};

const BTN = 104;
const GAP = 14;

export const CurHoverTooltip: React.FC<HoverTooltipProps> = (props) => {
  const p = {...hoverTooltipDefaults, ...props};
  const t = useT();
  const font = p.font ?? HEEBO;
  const rtl = dirOf(p.tools.map((x) => x.label).join('')) === 'rtl';
  const n = p.tools.length;
  const BW = n * BTN + (n - 1) * GAP + 28;
  const W = Math.max(BW + 200, 760);
  const H = 400;
  const bx = (W - BW) / 2;
  const by = 220;
  const centre = (i: number) => {
    const k = rtl ? n - 1 - i : i; // tour in reading order
    return [bx + 14 + k * (BTN + GAP) + BTN / 2, by + 14 + BTN / 2];
  };
  const T0 = 0.75;
  const STEP = 0.72;
  const arrive = (i: number) => T0 + i * STEP;
  const CLICK = arrive(n - 1) + 0.35;
  // cursor: hops between the tools
  let cx = rtl ? -60 : W + 60;
  let cy = H + 60;
  for (let i = 0; i < n; i++) {
    const [x, y] = centre(i);
    const k = inOut(p01(t, arrive(i) - 0.32, arrive(i)));
    if (k > 0) {
      cx = lerp(cx, x + 8, k);
      cy = lerp(cy, y + 10, k) + Math.sin(k * Math.PI) * 26;
    }
  }
  const leave = inOut(p01(t, CLICK + 0.6, CLICK + 1.1));
  cx = lerp(cx, cx + (rtl ? -50 : 50), leave);
  cy = lerp(cy, H + 70, leave);
  const hoverOf = (i: number) => (t >= arrive(i) - 0.05 && (i === n - 1 ? t < CLICK + 0.75 : t < arrive(i + 1) - 0.2) ? 1 : 0);
  const press = p01(t, CLICK - 0.08, CLICK) * (1 - p01(t, CLICK + 0.05, CLICK + 0.2));
  const on = t > CLICK;
  const barIn = spr(t, 0.1, 14, 9);
  return (
    <Stage p={p} w={W} h={H} defSide="right">
      <div style={{position: 'absolute', inset: 0, ...lifeStyle(t, p.duration!, 0.1, 0.4), fontFamily: font}}>
        <div style={{position: 'absolute', left: bx, top: by, width: BW, height: BTN + 28, borderRadius: 36, background: p.bar, boxShadow: SHADOW,
          transform: `translateY(${(1 - Math.min(1, barIn)) * 60}px)`, opacity: Math.min(1, barIn * 2)}} />
        {p.tools.map((tool, i) => {
          const [x, y] = centre(i);
          const hov = hoverOf(i);
          const isOn = on && i === n - 1;
          const tipK = hov ? spr(t, arrive(i) - 0.02, 18, 9) : 0;
          return (
            <React.Fragment key={i}>
              <div style={{position: 'absolute', left: x - BTN / 2, top: y - BTN / 2 + (1 - Math.min(1, barIn)) * 60, width: BTN, height: BTN, borderRadius: 26,
                background: isOn ? p.accent : hov ? rgba(p.accent, 0.12) : 'transparent', transform: `scale(${1 - 0.08 * (i === n - 1 ? press : 0)})`,
                display: 'flex', alignItems: 'center', justifyContent: 'center', opacity: Math.min(1, barIn * 2)}}>
                <svg viewBox="0 0 24 24" width={52} height={52}>
                  <path d={ICONS[tool.icon]} fill="none" stroke={isOn ? '#fff' : hov ? p.accent : '#16151a'} strokeWidth={2} strokeLinecap="round" strokeLinejoin="round" />
                </svg>
              </div>
              {tipK > 0.01 && (
                <div style={{position: 'absolute', left: x - 200, width: 400, top: y - BTN / 2 - 96, display: 'flex', justifyContent: 'center'}}>
                  <div style={{position: 'relative', padding: '14px 26px', borderRadius: 20, background: isOn ? p.accent : p.tip, color: '#fff', fontSize: 30, fontWeight: 700,
                    whiteSpace: 'nowrap', direction: dirOf(tool.label), transform: `scale(${tipK}) translateY(${(1 - Math.min(1, tipK)) * 16}px)`, transformOrigin: '50% 130%',
                    opacity: Math.min(1, tipK * 2)}}>
                    {isOn ? p.clickedLabel : tool.label}
                    <div style={{position: 'absolute', left: '50%', bottom: -10, width: 22, height: 22, marginLeft: -11, background: isOn ? p.accent : p.tip, transform: 'rotate(45deg)', borderRadius: 4}} />
                  </div>
                </div>
              )}
            </React.Fragment>
          );
        })}
        {t > arrive(0) - 0.5 && leave < 1 && <Cursor x={cx} y={cy} press={press} size={1.7} />}
      </div>
    </Stage>
  );
};

export const meta = {id: 'LibCurHoverTooltip', component: CurHoverTooltip, defaults: hoverTooltipDefaults};