import { useState, useRef, useEffect } from 'react';
import { motion, AnimatePresence } from 'motion/react';
import { ChevronDown, Palette, Check } from 'lucide-react';

export interface ThemeOption {
  value: string;
  label: string;
  description?: string;
  colorPreview?: string;
}

export interface ThemeSelectorProps {
  value: string;
  onChange: (value: string) => void;
  options: ThemeOption[];
}

export function ThemeSelector({ value, onChange, options }: ThemeSelectorProps) {
  const [isOpen, setIsOpen] = useState(false);
  const containerRef = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const handleClickOutside = (e: MouseEvent) => {
      if (containerRef.current && !containerRef.current.contains(e.target as Node)) {
        setIsOpen(false);
      }
    };
    document.addEventListener('mousedown', handleClickOutside);
    return () => document.removeEventListener('mousedown', handleClickOutside);
  }, []);

  const selectedOption = options.find(o => o.value === value) || options[0];

  return (
    <div className="relative z-50" ref={containerRef}>
      <button
        onClick={() => setIsOpen(!isOpen)}
        className="flex items-center gap-2 px-4 py-2 bg-surface border border-border rounded-xl text-sm font-medium text-text hover:border-primary/50 transition-colors shadow-sm focus:outline-none focus:ring-2 focus:ring-primary/20"
      >
        <Palette className="w-4 h-4 text-primary" />
        <span>{selectedOption?.label}</span>
        <ChevronDown className={`w-4 h-4 text-text-muted transition-transform duration-200 ${isOpen ? 'rotate-180' : ''}`} />
      </button>

      <AnimatePresence>
        {isOpen && (
          <motion.div
            initial={{ opacity: 0, y: 10, scale: 0.95 }}
            animate={{ opacity: 1, y: 0, scale: 1 }}
            exit={{ opacity: 0, y: 10, scale: 0.95 }}
            transition={{ duration: 0.15 }}
            className="absolute top-full right-0 mt-2 w-64 bg-surface/95 backdrop-blur-xl border border-border rounded-xl shadow-2xl overflow-hidden"
          >
            <div className="p-2 space-y-1">
              {options.map((option) => (
                <button
                  key={option.value}
                  onClick={() => {
                    onChange(option.value);
                    setIsOpen(false);
                  }}
                  className={`w-full flex items-start gap-3 p-3 rounded-lg text-left transition-colors ${
                    value === option.value 
                      ? 'bg-primary/10 text-primary' 
                      : 'hover:bg-background text-text'
                  }`}
                >
                  {option.colorPreview && (
                    <div 
                      className="w-4 h-4 rounded-full border border-border/50 shrink-0 mt-0.5 shadow-inner" 
                      style={{ backgroundColor: option.colorPreview }}
                    />
                  )}
                  <div className="flex-1">
                    <div className="font-bold text-sm flex items-center justify-between">
                      {option.label}
                      {value === option.value && <Check className="w-4 h-4" />}
                    </div>
                    {option.description && (
                      <div className="text-xs text-text-muted mt-0.5">{option.description}</div>
                    )}
                  </div>
                </button>
              ))}
            </div>
          </motion.div>
        )}
      </AnimatePresence>
    </div>
  );
}