import type { RefObject } from 'react';
import { AnimatePresence, motion } from 'motion/react';
import { ChevronLeft, ChevronRight, Sparkles, X } from 'lucide-react';
import FeedbackFormStep from './FeedbackFormStep';
import FeedbackSuccessStep from './FeedbackSuccessStep';
import FeedbackTypeStep from './FeedbackTypeStep';
import type { FeedbackStep, FeedbackType, UploadedImg } from './types';

interface Props {
  canNext: boolean;
  content: string;
  error: string | null;
  fileRef: RefObject<HTMLInputElement | null>;
  maxScreenshots: number;
  module: string;
  open: boolean;
  progress: number;
  screenshots: UploadedImg[];
  step: FeedbackStep;
  submitting: boolean;
  textareaRef: RefObject<HTMLTextAreaElement | null>;
  type: FeedbackType | null;
  uploading: boolean;
  onAddFiles: (files: FileList | File[]) => void | Promise<void>;
  onBack: () => void;
  onChangeContent: (content: string) => void;
  onChangeModule: (module: string) => void;
  onClose: () => void;
  onNext: () => void;
  onRemoveScreenshot: (index: number) => void;
  onSelectType: (type: FeedbackType) => void;
}

export default function FeedbackModal({
  canNext,
  content,
  error,
  fileRef,
  maxScreenshots,
  module,
  open,
  progress,
  screenshots,
  step,
  submitting,
  textareaRef,
  type,
  uploading,
  onAddFiles,
  onBack,
  onChangeContent,
  onChangeModule,
  onClose,
  onNext,
  onRemoveScreenshot,
  onSelectType,
}: Props) {
  return (
    <AnimatePresence>
      {open && (
        <motion.div
          initial={{ opacity: 0 }}
          animate={{ opacity: 1 }}
          exit={{ opacity: 0 }}
          className="fixed inset-0 z-[90] bg-slate-900/40 backdrop-blur-sm flex items-end md:items-center justify-center"
        >
          <motion.div
            initial={{ y: '100%', opacity: 0 }}
            animate={{ y: 0, opacity: 1 }}
            exit={{ y: '100%', opacity: 0 }}
            transition={{ y: { type: 'spring', damping: 28, stiffness: 320 }, opacity: { duration: 0.18 } }}
            className="bg-white w-full md:max-w-md md:rounded-3xl rounded-t-3xl shadow-2xl max-h-[92vh] overflow-hidden flex flex-col"
            onClick={(e) => e.stopPropagation()}
          >
            <div className="flex justify-center pt-2.5 pb-1">
              <div className="w-10 h-1 rounded-full bg-slate-300" />
            </div>

            <div className="px-4 pb-3 border-b border-slate-100">
              <div className="flex items-center justify-between mb-2">
                <div className="flex items-center gap-2">
                  <div className="w-7 h-7 rounded-lg bg-gradient-to-br from-blue-500 to-cyan-400 flex items-center justify-center">
                    <Sparkles size={14} className="text-white" />
                  </div>
                  <div>
                    <div className="text-sm font-black text-slate-800 leading-tight">
                      {step === 3 ? '收到啦~' : '提个建议'}
                    </div>
                    <div className="text-[10px] text-slate-400 font-bold">
                      {step === 1 && '第一步 / 共 2 步'}
                      {step === 2 && '第二步 / 共 2 步'}
                      {step === 3 && '感谢你的反馈'}
                    </div>
                  </div>
                </div>
                <button onClick={onClose} className="p-1.5 -mr-1 text-slate-400 hover:text-slate-700">
                  <X size={18} />
                </button>
              </div>
              <div className="h-1 bg-slate-100 rounded-full overflow-hidden">
                <motion.div
                  initial={false}
                  animate={{ width: `${progress}%` }}
                  transition={{ type: 'spring', damping: 28, stiffness: 280 }}
                  className="h-full bg-gradient-to-r from-blue-500 to-cyan-400 rounded-full"
                />
              </div>
            </div>

            <div className="flex-1 overflow-y-auto px-4 py-4">
              <AnimatePresence mode="wait">
                {step === 1 && (
                  <FeedbackTypeStep
                    key="s1"
                    selectedType={type}
                    onSelect={onSelectType}
                  />
                )}
                {step === 2 && (
                  <FeedbackFormStep
                    key="s2"
                    content={content}
                    error={error}
                    fileRef={fileRef}
                    maxScreenshots={maxScreenshots}
                    module={module}
                    screenshots={screenshots}
                    textareaRef={textareaRef}
                    type={type}
                    uploading={uploading}
                    onAddFiles={onAddFiles}
                    onChangeContent={onChangeContent}
                    onChangeModule={onChangeModule}
                    onRemoveScreenshot={onRemoveScreenshot}
                  />
                )}
                {step === 3 && <FeedbackSuccessStep key="s3" />}
              </AnimatePresence>
            </div>

            {step < 3 && (
              <div className="px-4 py-3 border-t border-slate-100 flex items-center gap-2">
                {step > 1 && (
                  <button
                    onClick={onBack}
                    className="px-3 py-2 rounded-xl text-[12px] font-bold text-slate-500 hover:bg-slate-50 flex items-center gap-1"
                  >
                    <ChevronLeft size={14} /> 上一步
                  </button>
                )}
                <div className="flex-1" />
                <button
                  onClick={onNext}
                  disabled={!canNext || submitting}
                  className="px-4 py-2 rounded-xl text-[12px] font-bold bg-blue-600 text-white shadow shadow-blue-100 disabled:bg-slate-200 disabled:text-slate-400 disabled:shadow-none flex items-center gap-1"
                >
                  {submitting ? '提交中…' : step === 2 ? '提交' : '下一步'}
                  {!submitting && step !== 2 && <ChevronRight size={14} />}
                </button>
              </div>
            )}
            {step === 3 && (
              <div className="px-4 py-3 border-t border-slate-100">
                <button
                  onClick={onClose}
                  className="w-full py-2.5 rounded-xl text-[12px] font-bold bg-blue-600 text-white shadow shadow-blue-100"
                >
                  完成
                </button>
              </div>
            )}
          </motion.div>
        </motion.div>
      )}
    </AnimatePresence>
  );
}