🎬 Add CountryStatsScene component for Top Länder (Scene 5)

Implements the Country Statistics scene which visualizes the geographic
reach of the Bitcoin community across German-speaking countries with
animated country bars, sparkline charts, and user counts.

Features:
- 3D perspective entrance animation for smooth scene transition
- Sequential country reveals with staggered timing (12 frame delay)
- CountryBar components with animated progress bars and user counts
- SparklineChart components showing growth trends for each country
- Total users badge with globe icon
- Audio: success-chime per country, slide-in for section entrance
- Countries displayed: Germany, Austria, Switzerland, Luxembourg,
  Bulgaria, and Spain

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
HolgerHatGarKeineNode
2026-01-24 13:29:49 +01:00
parent 2058140439
commit e9b55b60aa
2 changed files with 670 additions and 0 deletions

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import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import { render, cleanup } from "@testing-library/react";
import { CountryStatsScene } from "./CountryStatsScene";
/* eslint-disable @remotion/warn-native-media-tag */
// Mock Remotion hooks
vi.mock("remotion", () => ({
useCurrentFrame: vi.fn(() => 60),
useVideoConfig: vi.fn(() => ({ fps: 30, width: 1920, height: 1080 })),
interpolate: vi.fn((value, inputRange, outputRange, options) => {
const [inMin, inMax] = inputRange;
const [outMin, outMax] = outputRange;
let progress = (value - inMin) / (inMax - inMin);
if (options?.extrapolateLeft === "clamp") {
progress = Math.max(0, progress);
}
if (options?.extrapolateRight === "clamp") {
progress = Math.min(1, progress);
}
return outMin + progress * (outMax - outMin);
}),
spring: vi.fn(() => 1),
AbsoluteFill: vi.fn(({ children, className, style }) => (
<div data-testid="absolute-fill" className={className} style={style}>
{children}
</div>
)),
Img: vi.fn(({ src, className, style }) => (
<img data-testid="remotion-img" src={src} className={className} style={style} />
)),
staticFile: vi.fn((path: string) => `/static/${path}`),
Sequence: vi.fn(({ children, from, durationInFrames }) => (
<div data-testid="sequence" data-from={from} data-duration={durationInFrames}>
{children}
</div>
)),
Easing: {
out: vi.fn((fn) => fn),
cubic: vi.fn((t: number) => t),
},
}));
// Mock @remotion/media
vi.mock("@remotion/media", () => ({
Audio: vi.fn(({ src, volume }) => (
<audio data-testid="audio" src={src} data-volume={volume} />
)),
}));
/* eslint-enable @remotion/warn-native-media-tag */
// Mock CountryBar component
vi.mock("../../components/CountryBar", () => ({
CountryBar: vi.fn(({ countryName, flagEmoji, userCount, maxCount, width, delay, accentColor, showCount }) => (
<div
data-testid="country-bar"
data-country-name={countryName}
data-flag-emoji={flagEmoji}
data-user-count={userCount}
data-max-count={maxCount}
data-width={width}
data-delay={delay}
data-accent-color={accentColor}
data-show-count={showCount}
>
{countryName}: {userCount}
</div>
)),
}));
// Mock SparklineChart component
vi.mock("../../components/SparklineChart", () => ({
SparklineChart: vi.fn(({ data, width, height, delay, color, strokeWidth, showFill, fillOpacity, showGlow }) => (
<svg
data-testid="sparkline-chart"
data-points={data.length}
data-width={width}
data-height={height}
data-delay={delay}
data-color={color}
data-stroke-width={strokeWidth}
data-show-fill={showFill}
data-fill-opacity={fillOpacity}
data-show-glow={showGlow}
/>
)),
}));
describe("CountryStatsScene", () => {
beforeEach(() => {
vi.clearAllMocks();
});
afterEach(() => {
cleanup();
vi.resetAllMocks();
});
it("renders without errors", () => {
const { container } = render(<CountryStatsScene />);
expect(container).toBeInTheDocument();
});
it("renders the AbsoluteFill container with correct classes", () => {
const { container } = render(<CountryStatsScene />);
const absoluteFill = container.querySelector('[data-testid="absolute-fill"]');
expect(absoluteFill).toBeInTheDocument();
expect(absoluteFill).toHaveClass("bg-zinc-900");
expect(absoluteFill).toHaveClass("overflow-hidden");
});
it("renders the wallpaper background image", () => {
const { container } = render(<CountryStatsScene />);
const images = container.querySelectorAll('[data-testid="remotion-img"]');
const wallpaper = Array.from(images).find((img) =>
img.getAttribute("src")?.includes("einundzwanzig-wallpaper.png")
);
expect(wallpaper).toBeInTheDocument();
});
it("renders the section header with correct text", () => {
const { container } = render(<CountryStatsScene />);
const header = container.querySelector("h1");
expect(header).toBeInTheDocument();
expect(header).toHaveTextContent("Community nach Ländern");
expect(header).toHaveClass("text-5xl");
expect(header).toHaveClass("font-bold");
expect(header).toHaveClass("text-white");
});
it("renders the subtitle text", () => {
const { container } = render(<CountryStatsScene />);
expect(container.textContent).toContain("Die deutschsprachige Bitcoin-Community wächst überall");
});
it("renders all six countries", () => {
const { container } = render(<CountryStatsScene />);
const countryBars = container.querySelectorAll('[data-testid="country-bar"]');
expect(countryBars.length).toBe(6);
});
it("renders Germany with correct data", () => {
const { container } = render(<CountryStatsScene />);
const germanyBar = container.querySelector('[data-country-name="Germany"]');
expect(germanyBar).toBeInTheDocument();
expect(germanyBar).toHaveAttribute("data-flag-emoji", "🇩🇪");
expect(germanyBar).toHaveAttribute("data-user-count", "458");
});
it("renders Austria with correct data", () => {
const { container } = render(<CountryStatsScene />);
const austriaBar = container.querySelector('[data-country-name="Austria"]');
expect(austriaBar).toBeInTheDocument();
expect(austriaBar).toHaveAttribute("data-flag-emoji", "🇦🇹");
expect(austriaBar).toHaveAttribute("data-user-count", "59");
});
it("renders Switzerland with correct data", () => {
const { container } = render(<CountryStatsScene />);
const switzerlandBar = container.querySelector('[data-country-name="Switzerland"]');
expect(switzerlandBar).toBeInTheDocument();
expect(switzerlandBar).toHaveAttribute("data-flag-emoji", "🇨🇭");
expect(switzerlandBar).toHaveAttribute("data-user-count", "34");
});
it("renders Luxembourg with correct data", () => {
const { container } = render(<CountryStatsScene />);
const luxembourgBar = container.querySelector('[data-country-name="Luxembourg"]');
expect(luxembourgBar).toBeInTheDocument();
expect(luxembourgBar).toHaveAttribute("data-flag-emoji", "🇱🇺");
expect(luxembourgBar).toHaveAttribute("data-user-count", "8");
});
it("renders Bulgaria with correct data", () => {
const { container } = render(<CountryStatsScene />);
const bulgariaBar = container.querySelector('[data-country-name="Bulgaria"]');
expect(bulgariaBar).toBeInTheDocument();
expect(bulgariaBar).toHaveAttribute("data-flag-emoji", "🇧🇬");
expect(bulgariaBar).toHaveAttribute("data-user-count", "7");
});
it("renders Spain with correct data", () => {
const { container } = render(<CountryStatsScene />);
const spainBar = container.querySelector('[data-country-name="Spain"]');
expect(spainBar).toBeInTheDocument();
expect(spainBar).toHaveAttribute("data-flag-emoji", "🇪🇸");
expect(spainBar).toHaveAttribute("data-user-count", "3");
});
it("renders sparkline charts for all countries", () => {
const { container } = render(<CountryStatsScene />);
const sparklineCharts = container.querySelectorAll('[data-testid="sparkline-chart"]');
expect(sparklineCharts.length).toBe(6);
});
it("renders sparkline charts with correct styling", () => {
const { container } = render(<CountryStatsScene />);
const sparklines = container.querySelectorAll('[data-testid="sparkline-chart"]');
const firstSparkline = sparklines[0];
expect(firstSparkline).toHaveAttribute("data-color", "#f7931a");
expect(firstSparkline).toHaveAttribute("data-stroke-width", "2");
expect(firstSparkline).toHaveAttribute("data-show-fill", "true");
expect(firstSparkline).toHaveAttribute("data-show-glow", "true");
});
it('renders the "Nutzer weltweit" total badge', () => {
const { container } = render(<CountryStatsScene />);
expect(container.textContent).toContain("Nutzer weltweit");
});
it("renders audio sequences for sound effects", () => {
const { container } = render(<CountryStatsScene />);
const sequences = container.querySelectorAll('[data-testid="sequence"]');
// 6 country chimes + 1 slide-in = 7 sequences
expect(sequences.length).toBe(7);
});
it("includes success-chime audio for country entrances", () => {
const { container } = render(<CountryStatsScene />);
const audioElements = container.querySelectorAll('[data-testid="audio"]');
const successChimes = Array.from(audioElements).filter((audio) =>
audio.getAttribute("src")?.includes("success-chime.mp3")
);
expect(successChimes.length).toBe(6);
});
it("includes slide-in audio for section entrance", () => {
const { container } = render(<CountryStatsScene />);
const audioElements = container.querySelectorAll('[data-testid="audio"]');
const slideInAudio = Array.from(audioElements).find((audio) =>
audio.getAttribute("src")?.includes("slide-in.mp3")
);
expect(slideInAudio).toBeInTheDocument();
});
it("renders vignette overlay with pointer-events-none", () => {
const { container } = render(<CountryStatsScene />);
const vignettes = container.querySelectorAll(".pointer-events-none");
expect(vignettes.length).toBeGreaterThan(0);
});
it("applies 3D perspective transform styles", () => {
const { container } = render(<CountryStatsScene />);
const elements = container.querySelectorAll('[style*="perspective"]');
expect(elements.length).toBeGreaterThan(0);
});
it("renders the globe icon SVG", () => {
const { container } = render(<CountryStatsScene />);
const svgElements = container.querySelectorAll("svg");
// Should have globe icon
expect(svgElements.length).toBeGreaterThanOrEqual(1);
});
it("renders CountryBar with maxCount set to Germany's count (highest)", () => {
const { container } = render(<CountryStatsScene />);
const countryBars = container.querySelectorAll('[data-testid="country-bar"]');
// All bars should have maxCount = 458 (Germany's count)
countryBars.forEach((bar) => {
expect(bar).toHaveAttribute("data-max-count", "458");
});
});
it("renders CountryBar with Bitcoin orange accent color", () => {
const { container } = render(<CountryStatsScene />);
const countryBars = container.querySelectorAll('[data-testid="country-bar"]');
countryBars.forEach((bar) => {
expect(bar).toHaveAttribute("data-accent-color", "#f7931a");
});
});
it("renders countries in a 2-column grid layout", () => {
const { container } = render(<CountryStatsScene />);
const grid = container.querySelector(".grid-cols-2");
expect(grid).toBeInTheDocument();
});
});

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import {
AbsoluteFill,
useCurrentFrame,
useVideoConfig,
interpolate,
spring,
Img,
staticFile,
Sequence,
} from "remotion";
import { Audio } from "@remotion/media";
import { CountryBar } from "../../components/CountryBar";
import { SparklineChart } from "../../components/SparklineChart";
// Spring configurations
const SNAPPY = { damping: 15, stiffness: 80 };
const BOUNCY = { damping: 12 };
// Stagger delay between country items (in frames)
const COUNTRY_STAGGER_DELAY = 12;
// Country statistics data
const COUNTRY_DATA = [
{
name: "Germany",
flagEmoji: "🇩🇪",
userCount: 458,
sparklineData: [80, 120, 180, 220, 280, 320, 350, 390, 420, 445, 455, 458],
},
{
name: "Austria",
flagEmoji: "🇦🇹",
userCount: 59,
sparklineData: [10, 15, 22, 28, 35, 40, 45, 50, 54, 57, 58, 59],
},
{
name: "Switzerland",
flagEmoji: "🇨🇭",
userCount: 34,
sparklineData: [5, 8, 12, 15, 18, 22, 25, 28, 30, 32, 33, 34],
},
{
name: "Luxembourg",
flagEmoji: "🇱🇺",
userCount: 8,
sparklineData: [1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 8, 8],
},
{
name: "Bulgaria",
flagEmoji: "🇧🇬",
userCount: 7,
sparklineData: [1, 1, 2, 2, 3, 4, 4, 5, 5, 6, 7, 7],
},
{
name: "Spain",
flagEmoji: "🇪🇸",
userCount: 3,
sparklineData: [0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3],
},
];
// Maximum count for calculating relative bar widths
const MAX_USER_COUNT = Math.max(...COUNTRY_DATA.map((c) => c.userCount));
/**
* CountryStatsScene - Scene 5: Top Länder (12 seconds / 360 frames @ 30fps)
*
* Animation sequence:
* 1. Smooth transition from previous scene (3D perspective entrance)
* 2. Section header animates in with fade + translateY
* 3. Countries appear sequentially with staggered entrance:
* - CountryBar component slides in from left
* - SparklineChart draws in next to each country
* - User counts animate up
* 4. Audio: success-chime.mp3 plays per country entrance
*/
export const CountryStatsScene: React.FC = () => {
const frame = useCurrentFrame();
const { fps } = useVideoConfig();
// 3D Perspective entrance animation (0-60 frames)
const perspectiveSpring = spring({
frame,
fps,
config: { damping: 20, stiffness: 60 },
});
const perspectiveX = interpolate(perspectiveSpring, [0, 1], [20, 0]);
const perspectiveScale = interpolate(perspectiveSpring, [0, 1], [0.9, 1]);
const perspectiveOpacity = interpolate(perspectiveSpring, [0, 1], [0, 1]);
// Header entrance animation (delayed)
const headerDelay = Math.floor(0.3 * fps);
const headerSpring = spring({
frame: frame - headerDelay,
fps,
config: SNAPPY,
});
const headerOpacity = interpolate(headerSpring, [0, 1], [0, 1]);
const headerY = interpolate(headerSpring, [0, 1], [-40, 0]);
// Subtitle animation (slightly more delayed)
const subtitleDelay = Math.floor(0.5 * fps);
const subtitleSpring = spring({
frame: frame - subtitleDelay,
fps,
config: SNAPPY,
});
const subtitleOpacity = interpolate(subtitleSpring, [0, 1], [0, 1]);
const subtitleY = interpolate(subtitleSpring, [0, 1], [20, 0]);
// Base delay for country items
const countryBaseDelay = Math.floor(1 * fps);
// Subtle glow pulse
const glowIntensity = interpolate(
Math.sin(frame * 0.05),
[-1, 1],
[0.3, 0.6]
);
// Total users count animation
const totalUsers = COUNTRY_DATA.reduce((sum, c) => sum + c.userCount, 0);
const totalDelay = Math.floor(0.8 * fps);
const totalSpring = spring({
frame: frame - totalDelay,
fps,
config: { damping: 18, stiffness: 70 },
durationInFrames: 60,
});
const displayTotal = Math.round(totalSpring * totalUsers);
return (
<AbsoluteFill className="bg-zinc-900 overflow-hidden">
{/* Audio: success-chime for each country entrance */}
{COUNTRY_DATA.map((_, index) => (
<Sequence
key={`audio-${index}`}
from={countryBaseDelay + index * COUNTRY_STAGGER_DELAY}
durationInFrames={Math.floor(0.5 * fps)}
>
<Audio src={staticFile("sfx/success-chime.mp3")} volume={0.3} />
</Sequence>
))}
{/* Audio: slide-in for section entrance */}
<Sequence from={headerDelay} durationInFrames={Math.floor(1 * fps)}>
<Audio src={staticFile("sfx/slide-in.mp3")} volume={0.5} />
</Sequence>
{/* Wallpaper Background */}
<div className="absolute inset-0">
<Img
src={staticFile("einundzwanzig-wallpaper.png")}
className="absolute inset-0 w-full h-full object-cover"
style={{ opacity: 0.1 }}
/>
</div>
{/* Dark gradient overlay */}
<div
className="absolute inset-0"
style={{
background:
"radial-gradient(circle at 40% 50%, transparent 0%, rgba(24, 24, 27, 0.5) 40%, rgba(24, 24, 27, 0.95) 100%)",
}}
/>
{/* 3D Perspective Container */}
<div
className="absolute inset-0"
style={{
transform: `perspective(1200px) rotateX(${perspectiveX}deg) scale(${perspectiveScale})`,
transformOrigin: "center center",
opacity: perspectiveOpacity,
}}
>
{/* Main Content */}
<div className="absolute inset-0 flex flex-col items-center justify-center px-20">
{/* Section Header */}
<div
className="text-center mb-8"
style={{
opacity: headerOpacity,
transform: `translateY(${headerY}px)`,
}}
>
<h1 className="text-5xl font-bold text-white mb-3">
Community nach Ländern
</h1>
<p
className="text-xl text-zinc-400"
style={{
opacity: subtitleOpacity,
transform: `translateY(${subtitleY}px)`,
}}
>
Die deutschsprachige Bitcoin-Community wächst überall
</p>
</div>
{/* Total Users Badge */}
<TotalUsersBadge
totalUsers={displayTotal}
delay={totalDelay}
glowIntensity={glowIntensity}
/>
{/* Countries Grid */}
<div className="w-full max-w-5xl mt-8">
<div className="grid grid-cols-2 gap-6">
{COUNTRY_DATA.map((country, index) => (
<CountryRow
key={country.name}
country={country}
maxCount={MAX_USER_COUNT}
delay={countryBaseDelay + index * COUNTRY_STAGGER_DELAY}
glowIntensity={glowIntensity}
/>
))}
</div>
</div>
</div>
</div>
{/* Vignette overlay */}
<div
className="absolute inset-0 pointer-events-none"
style={{
boxShadow: "inset 0 0 200px 50px rgba(0, 0, 0, 0.6)",
}}
/>
</AbsoluteFill>
);
};
/**
* Total users badge component
*/
type TotalUsersBadgeProps = {
totalUsers: number;
delay: number;
glowIntensity: number;
};
const TotalUsersBadge: React.FC<TotalUsersBadgeProps> = ({
totalUsers,
delay,
glowIntensity,
}) => {
const frame = useCurrentFrame();
const { fps } = useVideoConfig();
const adjustedFrame = Math.max(0, frame - delay);
const badgeSpring = spring({
frame: adjustedFrame,
fps,
config: BOUNCY,
});
const badgeScale = interpolate(badgeSpring, [0, 1], [0.8, 1]);
const badgeOpacity = interpolate(badgeSpring, [0, 1], [0, 1]);
return (
<div
className="flex items-center gap-4 px-8 py-4 rounded-2xl"
style={{
backgroundColor: "rgba(247, 147, 26, 0.15)",
border: "1px solid rgba(247, 147, 26, 0.3)",
boxShadow: `0 0 ${30 * glowIntensity}px rgba(247, 147, 26, 0.2)`,
transform: `scale(${badgeScale})`,
opacity: badgeOpacity,
}}
>
<GlobeIcon />
<div className="flex items-baseline gap-3">
<span
className="text-4xl font-bold tabular-nums"
style={{
color: "#f7931a",
fontFamily: "Inconsolata, monospace",
textShadow: `0 0 ${15 * glowIntensity}px rgba(247, 147, 26, 0.5)`,
}}
>
{totalUsers}
</span>
<span className="text-xl text-zinc-300">Nutzer weltweit</span>
</div>
</div>
);
};
/**
* Country row with bar and sparkline
*/
type CountryRowProps = {
country: {
name: string;
flagEmoji: string;
userCount: number;
sparklineData: number[];
};
maxCount: number;
delay: number;
glowIntensity: number;
};
const CountryRow: React.FC<CountryRowProps> = ({
country,
maxCount,
delay,
glowIntensity,
}) => {
const frame = useCurrentFrame();
const { fps } = useVideoConfig();
const adjustedFrame = Math.max(0, frame - delay);
const rowSpring = spring({
frame: adjustedFrame,
fps,
config: SNAPPY,
});
const rowOpacity = interpolate(rowSpring, [0, 1], [0, 1]);
const rowX = interpolate(rowSpring, [0, 1], [-50, 0]);
// Sparkline delay (appears slightly after the bar)
const sparklineDelay = delay + 20;
return (
<div
className="flex items-center gap-4"
style={{
opacity: rowOpacity,
transform: `translateX(${rowX}px)`,
}}
>
{/* Country Bar */}
<div className="flex-1">
<CountryBar
countryName={country.name}
flagEmoji={country.flagEmoji}
userCount={country.userCount}
maxCount={maxCount}
width={380}
delay={delay}
accentColor="#f7931a"
showCount={true}
/>
</div>
{/* Sparkline Chart */}
<div
className="rounded-lg bg-zinc-800/50 p-3"
style={{
boxShadow: `0 0 ${15 * glowIntensity}px rgba(247, 147, 26, 0.1)`,
}}
>
<SparklineChart
data={country.sparklineData}
width={120}
height={40}
delay={sparklineDelay}
color="#f7931a"
strokeWidth={2}
showFill={true}
fillOpacity={0.2}
showGlow={true}
/>
</div>
</div>
);
};
/**
* Globe icon SVG
*/
const GlobeIcon: React.FC = () => (
<svg
viewBox="0 0 24 24"
fill="none"
stroke="#f7931a"
strokeWidth={2}
strokeLinecap="round"
strokeLinejoin="round"
style={{ width: 32, height: 32 }}
>
<circle cx="12" cy="12" r="10" />
<path d="M2 12h20" />
<path d="M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z" />
</svg>
);