Pulse Button

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"use client";

import { motion } from "motion/react";
import { cn } from "@/lib/utils";

type ButtonSize = "sm" | "md" | "lg" | "xl";
type ButtonColor = "pink" | "blue" | "orange" | "yellow" | "green" | "purple";

interface PulseButtonProps {
  /**
   * The text to display on the button.
   * @default "Swap"
   */
  text?: string;
  /**
   * Optional click handler.
   */
  onClick?: () => void;
  /**
   * Additional CSS classes for the button.
   */
  className?: string;
  /**
   * The preset color theme for the button.
   * @default "pink"
   */
  color?: ButtonColor;
  /**
   * The size of the button.
   * @default "lg"
   */
  size?: ButtonSize;
}

const colorMap: Record<ButtonColor, { primary: string; glow: string; shadow: string }> = {
  pink: {
    primary: "#ff2281",
    glow: "#ff4da0",
    shadow: "rgba(255, 34, 129, 0.4)",
  },
  blue: {
    primary: "#0070f3",
    glow: "#00d2ff",
    shadow: "rgba(0, 112, 243, 0.4)",
  },
  orange: {
    primary: "#f2994a",
    glow: "#f2c94c",
    shadow: "rgba(242, 153, 74, 0.4)",
  },
  yellow: {
    primary: "#f2c94c",
    glow: "#ffe000",
    shadow: "rgba(242, 201, 76, 0.4)",
  },
  green: {
    primary: "#27ae60",
    glow: "#2ecc71",
    shadow: "rgba(39, 174, 96, 0.4)",
  },
  purple: {
    primary: "#8e44ad",
    glow: "#9b59b6",
    shadow: "rgba(142, 68, 173, 0.4)",
  },
};

const sizeConfig = {
  sm: {
    button: "h-10 min-w-[120px] px-4 rounded-lg",
    text: "text-sm",
    dots: [2, 1.2, 0.8],
  },
  md: {
    button: "h-14 min-w-[180px] px-6 rounded-xl",
    text: "text-xl",
    dots: [3, 1.8, 1],
  },
  lg: {
    button: "h-20 min-w-[240px] px-8 rounded-2xl",
    text: "text-3xl",
    dots: [3.5, 2, 1],
  },
  xl: {
    button: "h-28 min-w-[320px] px-12 rounded-[2rem]",
    text: "text-5xl",
    dots: [5, 3, 1.5],
  },
};

/**
 * A beautifully animated button component with gradient background,
 * pulsing dot patterns, and smooth hover/active interactions.
 */
export default function PulseButton({
  text = "Swap",
  onClick,
  className,
  color = "pink",
  size = "lg",
}: PulseButtonProps) {
  const config = sizeConfig[size];
  const theme = colorMap[color];

  return (
    <motion.button
      onClick={onClick}
      className={cn(
        "relative flex items-center justify-center group focus:outline-none focus:ring-2 focus:ring-offset-2 w-fit",
        config.button,
        className
      )}
      style={{
        background: `linear-gradient(to right, ${theme.glow}, ${theme.primary}, ${theme.glow})`,
        boxShadow: `0 8px 32px ${theme.shadow}, inset 0 0 0 1.5px rgba(255, 255, 255, 0.3)`,
        // @ts-ignore - custom property for focus ring
        "--tw-ring-color": theme.primary,
      }}
      whileHover={{ scale: 1.02 }}
      whileTap={{ scale: 0.98 }}
      transition={{ type: "spring", stiffness: 400, damping: 17 }}
    >
      {/* Pattern Overlay Container */}
      <div className={cn("absolute inset-0 overflow-hidden pointer-events-none transition-opacity duration-300 group-hover:opacity-90", config.button)}>
        {/* Large dots (Outer Edges) */}
        <motion.div
          className="absolute inset-0 w-full h-full"
          style={{
            backgroundImage: `radial-gradient(circle, rgba(255,255,255,0.45) ${config.dots[0]}px, transparent ${config.dots[0]}px), radial-gradient(circle, rgba(255,255,255,0.45) ${config.dots[0]}px, transparent ${config.dots[0]}px)`,
            backgroundSize: '18px 18px',
            backgroundPosition: '0 0, 9px 9px',
            WebkitMaskImage: 'linear-gradient(to right, white 0%, transparent 12%, transparent 88%, white 100%)',
            maskImage: 'linear-gradient(to right, white 0%, transparent 12%, transparent 88%, white 100%)',
          }}
          animate={{ opacity: [0.15, 1, 0.15] }}
          transition={{
            duration: 2,
            repeat: Infinity,
            ease: "easeInOut",
            delay: 0,
          }}
        />

        {/* Medium dots (Mid Section) */}
        <motion.div
          className="absolute inset-0 w-full h-full"
          style={{
            backgroundImage: `radial-gradient(circle, rgba(255,255,255,0.45) ${config.dots[1]}px, transparent ${config.dots[1]}px), radial-gradient(circle, rgba(255,255,255,0.45) ${config.dots[1]}px, transparent ${config.dots[1]}px)`,
            backgroundSize: '18px 18px',
            backgroundPosition: '0 0, 9px 9px',
            WebkitMaskImage: 'linear-gradient(to right, transparent 4%, white 12%, transparent 24%, transparent 76%, white 88%, transparent 96%)',
            maskImage: 'linear-gradient(to right, transparent 4%, white 12%, transparent 24%, transparent 76%, white 88%, transparent 96%)',
          }}
          animate={{ opacity: [0.15, 1, 0.15] }}
          transition={{
            duration: 2,
            repeat: Infinity,
            ease: "easeInOut",
            delay: 0.2,
          }}
        />

        {/* Small dots (Inner Section fading to center) */}
        <motion.div
          className="absolute inset-0 w-full h-full"
          style={{
            backgroundImage: `radial-gradient(circle, rgba(255,255,255,0.45) ${config.dots[2]}px, transparent ${config.dots[2]}px), radial-gradient(circle, rgba(255,255,255,0.45) ${config.dots[2]}px, transparent ${config.dots[2]}px)`,
            backgroundSize: '18px 18px',
            backgroundPosition: '0 0, 9px 9px',
            WebkitMaskImage: 'linear-gradient(to right, transparent 15%, white 25%, transparent 35%, transparent 65%, white 75%, transparent 85%)',
            maskImage: 'linear-gradient(to right, transparent 15%, white 25%, transparent 35%, transparent 65%, white 75%, transparent 85%)',
          }}
          animate={{ opacity: [0.15, 1, 0.15] }}
          transition={{
            duration: 2,
            repeat: Infinity,
            ease: "easeInOut",
            delay: 0.4,
          }}
        />
      </div>

      {/* Text Label */}
      <span 
        className={cn("relative z-10 text-white font-semibold tracking-tight", config.text)}
        style={{
          textShadow: '0 0 15px rgba(255,255,255,0.8), 0 0 30px rgba(255,255,255,0.4)'
        }}
      >
        {text}
      </span>
    </motion.button>
  );
}