/**
 * @license
 * SPDX-License-Identifier: Apache-2.0
 */

import React from 'react';
import { AccountabilityCase } from '../types';
import { Check, AlertCircle, Clock, CheckCircle2 } from 'lucide-react';

interface TimelineProps {
  currentCase: AccountabilityCase;
}

export const STEPS_DEFINITION = [
  { index: 1, name: '启动立案', desc: '成立问责调查组，录入案件基础信息' },
  { index: 2, name: '调查核实', desc: '开展谈话、送达事实见面材料、核查申辩、形成调查报告' },
  { index: 3, name: '合规审理', desc: '审理职责部门受理并出具合规审理意见书' },
  { index: 4, name: '会议审议', desc: '问责委员会委员召开会议并线上表决与签名' },
  { index: 5, name: '申诉窗口期', desc: '10个工作日内申诉确认或直接进入发文阶段' },
  { index: 6, name: '提起申诉', desc: '被问责人提交申诉材料（有异议时触发）' },
  { index: 7, name: '指派复查', desc: '指派审理组或协助调查组，出具复查意见' },
  { index: 8, name: '按程序复议', desc: '重新提请委员会，做出复议决议' },
  { index: 9, name: '发文归档', desc: '下发红头问责文件，抄送人力资源部归档' }
];

export default function CaseWorkflowTimeline({ currentCase }: TimelineProps) {
  const currentStep = currentCase.currentStep;
  
  // 判断哪些步骤被跳过或不需要
  // 如果案件没有申诉（在步骤5时选择无异议，或者已直接跳到步骤9），那么 6, 7, 8 被视为 skipped
  const isSkippedStep = (stepIdx: number): boolean => {
    if (!currentCase.hasAppeal && [6, 7, 8].includes(stepIdx)) {
      // 已经完成申诉期，或者在申诉期之前，且未触发申诉
      if (currentStep === 9 || currentStep === 5) {
        return true;
      }
    }
    return false;
  };

  const getStepStatus = (stepIdx: number): 'completed' | 'active' | 'pending' | 'skipped' => {
    if (isSkippedStep(stepIdx)) return 'skipped';
    if (currentStep > stepIdx) return 'completed';
    if (currentStep === stepIdx) return 'active';
    return 'pending';
  };

  // 期限计算说明
  const limitText = currentCase.category === 'asset' 
    ? '问题资产：启动后90天内需完成调查' 
    : '非问题资产：发起后30个工作日内需完成调查';

  return (
    <div className="bg-white border border-slate-200 rounded-lg p-4 shadow-2xs" id="workflow-timeline-card">
      <div className="flex flex-col md:flex-row justify-between items-start md:items-center gap-2 mb-4 border-b border-slate-100 pb-3">
        <div>
          <h3 className="text-sm font-bold text-slate-900 flex items-center gap-1.5">
            <Clock className="w-4 h-4 text-slate-500" />
            银行问责生命周期追踪
          </h3>
          <p className="text-[11px] text-slate-500 mt-0.5">流程闭环可追溯，确保每个程序节点合规守信</p>
        </div>
        <div className="flex items-center gap-1.5 bg-slate-50 border border-slate-200 px-2.5 py-1 rounded text-[11px] font-medium text-slate-600">
          <AlertCircle className="w-3.5 h-3.5 text-amber-500" />
          <span>时限要求：{limitText}</span>
        </div>
      </div>

      {/* 9步流程横向/纵向进度条 */}
      <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-9 gap-2 relative">
        {STEPS_DEFINITION.map((step) => {
          const status = getStepStatus(step.index);
          
          return (
            <div 
              key={step.index} 
              className={`relative flex flex-col p-2 rounded border transition-all ${
                status === 'completed' 
                  ? 'bg-slate-50/80 border-slate-200 text-slate-700' 
                  : status === 'active'
                  ? 'bg-blue-50/50 border-blue-200 ring-2 ring-blue-500/5 text-blue-900'
                  : status === 'skipped'
                  ? 'bg-slate-100/50 border-slate-200/50 text-slate-400 opacity-60'
                  : 'bg-white border-slate-100 text-slate-400'
              }`}
            >
              {/* 编号 & 状态图标 */}
              <div className="flex justify-between items-center mb-1">
                <span className={`text-[9px] font-mono font-bold uppercase tracking-wider px-1 py-0.5 rounded ${
                  status === 'completed'
                    ? 'bg-slate-200 text-slate-700'
                    : status === 'active'
                    ? 'bg-blue-600 text-white'
                    : status === 'skipped'
                    ? 'bg-slate-200/60 text-slate-400'
                    : 'bg-slate-100 text-slate-400'
                }`}>
                  STEP 0{step.index}
                </span>
                
                {status === 'completed' && <Check className="w-3.5 h-3.5 text-emerald-600" />}
                {status === 'active' && (
                  <span className="flex h-1.5 w-1.5 relative">
                    <span className="animate-ping absolute inline-flex h-full w-full rounded-full bg-blue-400 opacity-75"></span>
                    <span className="relative inline-flex rounded-full h-1.5 w-1.5 bg-blue-600"></span>
                  </span>
                )}
                {status === 'skipped' && <span className="text-[9px] text-slate-400">跳过</span>}
              </div>

              {/* 步骤名称 */}
              <h4 className={`text-[11px] font-bold ${
                status === 'active' ? 'text-blue-600' : 'text-slate-800'
              }`}>
                {step.name}
              </h4>
              
              {/* 简单说明 */}
              <p className="text-[10px] leading-relaxed text-slate-500 mt-1 line-clamp-2 md:line-clamp-none">
                {step.desc}
              </p>

              {/* 进度提示线 - 仅在非最后一步且大屏幕时显示 */}
              {step.index < 9 && (
                <div className="hidden lg:block absolute -right-1.5 top-1/2 -translate-y-1/2 z-10">
                  <span className={`text-sm font-bold ${
                    status === 'completed' ? 'text-slate-300' : 'text-slate-100'
                  }`}>→</span>
                </div>
              )}
            </div>
          );
        })}
      </div>
    </div>
  );
}