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* MatchCountdown Component - Displays match start countdown sequence
*
* Korean: 매치 시작 카운트다운 (Match Start Countdown)
*
* Shows "Ready?" → "3... 2... 1..." → "Fight!" sequence with animations.
* Implements Korean cyberpunk aesthetic with bilingual text support.
* Plays audio cues for countdown and fight announcement.
*
* @module components/combat/MatchCountdown
* @category Combat UI
*/
import React, { useEffect, useMemo, useRef } from "react";
import { useAudio } from "../../../audio/AudioProvider";
import {
MatchCountdownState,
useMatchCountdown,
} from "../../../hooks/useMatchCountdown";
import { FONT_FAMILY, KOREAN_COLORS } from "../../../types/constants";
import { hexColorToCSS } from "../../../utils/colorUtils";
/**
* Props for the MatchCountdown component
*/
export interface MatchCountdownProps {
/** Callback when countdown completes */
readonly onComplete: () => void;
/** Whether layout should adapt for mobile screens */
readonly isMobile: boolean;
/** Optional callback for skip button */
readonly onSkip?: () => void;
/** Whether skip button should be shown */
readonly showSkip?: boolean;
}
/**
* Get display text for current countdown state
*/
function getDisplayText(
state: MatchCountdownState,
currentNumber: number
): {
ko: string;
en: string;
} | null {
switch (state) {
case "ready":
return { ko: "준비?", en: "Ready?" };
case "counting":
return { ko: String(currentNumber), en: String(currentNumber) };
case "fight":
return { ko: "전투!", en: "Fight!" };
default:
return null;
}
}
/**
* MatchCountdown Component
*
* Displays match start countdown with:
* - "Ready?" announcement (1 second)
* - Countdown from 3 to 1 (1 second intervals)
* - "Fight!" announcement (1 second)
* - Pulse/scale animations for emphasis
* - Bilingual Korean-English text
* - Audio cues for countdown and fight
* - Optional skip button
* - Responsive sizing for mobile/tablet/desktop
*
* Korean: 매치 시작 카운트다운 컴포넌트
*/
// Static config outside component to prevent re-creation on each render
const COUNTDOWN_CONFIG = {
readyDuration: 1,
countdownInterval: 1,
fightDuration: 1,
startNumber: 3,
} as const;
export const MatchCountdown: React.FC<MatchCountdownProps> = ({
onComplete,
isMobile,
onSkip,
showSkip = false,
}) => {
const audio = useAudio();
// Use match countdown hook with stable config reference
const { state, currentNumber, startCountdown, skipCountdown, isActive } =
useMatchCountdown(COUNTDOWN_CONFIG, onComplete);
// Track if we've started to avoid double-start in Strict Mode
const hasStartedRef = useRef(false);
// Auto-start countdown on mount (only once)
useEffect(() => {
Eif (!hasStartedRef.current) {
hasStartedRef.current = true;
startCountdown();
}
}, [startCountdown]);
// Play audio cues based on state transitions
useEffect(() => {
Iif (!audio.isAudioReady) return;
if (state === "counting" && currentNumber > 0) {
// Play beep for each countdown number
audio.playSFX("attack_light"); // Using placeholder - will be countdown_beep
} else if (state === "fight") {
// Play fight announcement
audio.playSFX("attack_heavy"); // Using placeholder - will be fight_start
}
}, [state, currentNumber, audio]);
// Handle skip
const handleSkip = () => {
skipCountdown();
onSkip?.();
};
// Get display text
const displayText = getDisplayText(state, currentNumber);
// Calculate responsive font sizes - extracted to avoid nested ternaries
const getMainFontSize = (): string => {
if (isMobile) {
return state === "fight" ? "72px" : "64px";
}
return state === "fight" ? "120px" : "96px";
};
const getSubFontSize = (): string => {
if (isMobile) {
return state === "fight" ? "48px" : "40px";
}
return state === "fight" ? "72px" : "56px";
};
const mainFontSize = getMainFontSize();
const subFontSize = getSubFontSize();
// Convert hex colors to CSS - memoized for performance
const goldColor = useMemo(() => hexColorToCSS(KOREAN_COLORS.ACCENT_GOLD), []);
const cyanColor = useMemo(
() => hexColorToCSS(KOREAN_COLORS.PRIMARY_CYAN),
[]
);
const darkBg = useMemo(
() => hexColorToCSS(KOREAN_COLORS.UI_BACKGROUND_DARK),
[]
);
// Don't render if countdown not active or complete
if (!isActive || !displayText) {
return null;
}
return (
<>
<div
data-testid="match-countdown"
role="dialog"
aria-modal="true"
aria-label="Match countdown in progress"
aria-live="assertive"
style={{
position: "fixed",
top: 0,
left: 0,
width: "100%",
height: "100%",
display: "flex",
alignItems: "center",
justifyContent: "center",
backgroundColor: state === "fight" ? `${darkBg}cc` : `${darkBg}ee`,
zIndex: 1000,
animation: state === "ready" ? "fadeIn 0.3s ease-in" : "none",
}}
>
<div
style={{
fontSize: mainFontSize,
fontWeight: "bold",
color: state === "fight" ? goldColor : cyanColor,
fontFamily: FONT_FAMILY.KOREAN,
textShadow: `0 0 ${state === "fight" ? "40px" : "30px"} ${
state === "fight" ? goldColor : cyanColor
}`,
animation:
state === "ready"
? "pulse 0.8s ease-out"
: state === "counting"
? "countdownPulse 0.8s ease-out"
: state === "fight"
? "flash 0.3s ease-out"
: "none",
textAlign: "center",
userSelect: "none",
}}
data-testid="countdown-text"
>
{displayText.ko}
<br />
<span
style={{
fontSize: subFontSize,
}}
>
{displayText.en}
</span>
</div>
{/* Optional Skip Button */}
{showSkip && state !== "fight" && (
<button
onClick={handleSkip}
data-testid="skip-countdown-button"
aria-label="Skip countdown"
style={{
position: "absolute",
bottom: isMobile ? "40px" : "60px",
padding: isMobile ? "10px 24px" : "12px 32px",
fontSize: isMobile ? "14px" : "16px",
backgroundColor: cyanColor,
color: darkBg,
border: "none",
borderRadius: "6px",
fontFamily: FONT_FAMILY.KOREAN,
fontWeight: "bold",
cursor: "pointer",
transition: "all 0.2s ease",
}}
onMouseEnter={(e) => {
e.currentTarget.style.transform = "scale(1.05)";
e.currentTarget.style.boxShadow = `0 0 20px ${cyanColor}`;
}}
onMouseLeave={(e) => {
e.currentTarget.style.transform = "scale(1)";
e.currentTarget.style.boxShadow = "none";
}}
onFocus={(e) => {
e.currentTarget.style.transform = "scale(1.05)";
e.currentTarget.style.boxShadow = `0 0 20px ${cyanColor}`;
e.currentTarget.style.outline = `2px solid ${cyanColor}`;
}}
onBlur={(e) => {
e.currentTarget.style.transform = "scale(1)";
e.currentTarget.style.boxShadow = "none";
e.currentTarget.style.outline = "none";
}}
>
건너뛰기 | Skip
</button>
)}
</div>
{/* CSS Animations */}
<style>
{`
@keyframes fadeIn {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
@keyframes pulse {
0% {
opacity: 0;
transform: scale(0.9);
}
50% {
opacity: 1;
transform: scale(1.05);
}
100% {
opacity: 1;
transform: scale(1);
}
}
@keyframes countdownPulse {
0% {
opacity: 0;
transform: scale(1.2);
}
50% {
opacity: 1;
transform: scale(1.1);
}
100% {
opacity: 1;
transform: scale(1);
}
}
@keyframes flash {
0% {
opacity: 0;
transform: scale(1.5);
}
30% {
opacity: 1;
transform: scale(1.3);
}
100% {
opacity: 1;
transform: scale(1);
}
}
`}
</style>
</>
);
};
export default MatchCountdown;
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