import React from 'react';
import { motion, AnimatePresence } from 'framer-motion';
import { X, Check, ChevronDown } from 'lucide-react';
import * as Popover from '@radix-ui/react-popover';
import { mockSceneOptions, mockCharacterOptions } from '@/app/model/enums';

interface FilterBarProps {
  selectedScenes: string[];
  selectedCharacters: string[];
  onScenesChange: (scenes: string[]) => void;
  onCharactersChange: (characters: string[]) => void;
  onReset: () => void;
}

const MultiSelect: React.FC<{
  label: string;
  options: { id: string; name: string }[];
  selected: string[];
  onChange: (values: string[]) => void;
}> = ({ label, options, selected, onChange }) => {
  return (
    <div className="flex items-center min-w-[200px]">
      <label className="block text-sm text-gray-400 mr-2 flex-shrink-0 w-[2rem]">{label}</label>
      <Popover.Root>
        <Popover.Trigger asChild>
          <button
            className="flex-1 h-10 px-3 rounded-lg bg-black/30 border border-white/10
              flex items-center justify-between text-sm text-gray-200
              focus:outline-none focus:ring-2 focus:ring-blue-500/30"
          >
            <span>
              {selected.length
                ? `已选择 ${selected.length} 个${label}`
                : `选择${label}`}
            </span>
            <ChevronDown className="w-4 h-4 text-gray-400" />
          </button>
        </Popover.Trigger>

        <Popover.Portal>
          <Popover.Content
            className="w-[var(--radix-popover-trigger-width)] overflow-hidden bg-black/90 backdrop-blur-xl
              rounded-lg border border-white/10 shadow-xl animate-in fade-in-80 z-50"
            align="start"
            sideOffset={5}
          >
            <div className="p-2">
              {options.map((option) => (
                <motion.button
                  key={option.id}
                  onClick={() => {
                    const newSelected = selected.includes(option.id)
                      ? selected.filter(id => id !== option.id)
                      : [...selected, option.id];
                    onChange(newSelected);
                  }}
                  className="relative w-full flex items-center px-8 py-2 rounded-md text-sm text-gray-200
                    hover:bg-white/5 cursor-pointer outline-none"
                  whileHover={{ scale: 1.02 }}
                  whileTap={{ scale: 0.98 }}
                >
                  <span className="absolute left-2">
                    {selected.includes(option.id) && (
                      <motion.div
                        initial={{ scale: 0 }}
                        animate={{ scale: 1 }}
                        className="w-4 h-4 text-blue-400"
                      >
                        <Check className="w-4 h-4" />
                      </motion.div>
                    )}
                  </span>
                  {option.name}
                </motion.button>
              ))}
            </div>
          </Popover.Content>
        </Popover.Portal>
      </Popover.Root>
    </div>
  );
};

const FilterBar: React.FC<FilterBarProps> = ({
  selectedScenes,
  selectedCharacters,
  onScenesChange,
  onCharactersChange,
  onReset,
}) => {
  const sceneOptions = mockSceneOptions.map(scene => ({
    id: scene.sceneId,
    name: scene.name,
  }));

  const characterOptions = mockCharacterOptions.map(char => ({
    id: char.characterId,
    name: char.name,
  }));

  return (
    <motion.div
      initial={{ opacity: 0, y: -20 }}
      animate={{ opacity: 1, y: 0 }}
      className="w-full bg-black/20 backdrop-blur-sm rounded-xl p-4 border border-white/10"
    >
      <div className="flex flex-wrap gap-4 items-center">
        <MultiSelect
          label="场景"
          options={sceneOptions}
          selected={selectedScenes}
          onChange={onScenesChange}
        />

        <MultiSelect
          label="角色"
          options={characterOptions}
          selected={selectedCharacters}
          onChange={onCharactersChange}
        />

        <button
          onClick={onReset}
          className="h-10 px-4 rounded-lg bg-white/5 hover:bg-white/10
            text-sm text-gray-300 transition-colors flex items-center gap-2"
        >
          <X className="w-4 h-4" />
          重置筛选
        </button>
      </div>

      {/* 当前筛选条件 */}
      <AnimatePresence>
        {(selectedScenes.length > 0 || selectedCharacters.length > 0) && (
          <motion.div
            initial={{ opacity: 0, height: 0 }}
            animate={{ opacity: 1, height: 'auto' }}
            exit={{ opacity: 0, height: 0 }}
            className="mt-4 flex flex-wrap gap-2"
          >
            {selectedScenes.map((sceneId) => {
              const scene = mockSceneOptions.find(s => s.sceneId === sceneId);
              return scene && (
                <motion.span
                  key={sceneId}
                  initial={{ scale: 0 }}
                  animate={{ scale: 1 }}
                  exit={{ scale: 0 }}
                  className="px-2 py-1 rounded-md bg-blue-500/20 text-blue-400 text-sm"
                >
                  场景：{scene.name}
                </motion.span>
              );
            })}
            {selectedCharacters.map((charId) => {
              const char = mockCharacterOptions.find(c => c.characterId === charId);
              return char && (
                <motion.span
                  key={charId}
                  initial={{ scale: 0 }}
                  animate={{ scale: 1 }}
                  exit={{ scale: 0 }}
                  className="px-2 py-1 rounded-md bg-yellow-500/20 text-yellow-400 text-sm"
                >
                  角色：{char.name}
                </motion.span>
              );
            })}
          </motion.div>
        )}
      </AnimatePresence>
    </motion.div>
  );
};

export default FilterBar;