第三阶段核心业务开发完成
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'use client';
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import React, { useState, useEffect, useCallback } from 'react';
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import { useAuth } from '@/contexts/AuthContext';
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import { useRouter } from 'next/navigation';
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import Link from 'next/link';
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import LoadingSpinner from '@/components/LoadingSpinner';
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import { api, BaseResponse } from '@/utils/axios';
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import { FiZap, FiClock, FiAlertCircle, FiCheckCircle, FiPower, FiArrowLeft, FiInfo } from 'react-icons/fi';
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// 与 dashboard/page.tsx 类似的活动会话接口，可能需要根据后端VO调整
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interface ActiveChargingSession {
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id: number;
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spotUidSnapshot: string | null;
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robotUidSnapshot?: string | null;
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chargeStartTime: string | null; // ISO String Date
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status: string;
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// 根据需要可以从后端 ChargingSessionVO 添加更多字段
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// e.g., energyConsumedKwh, cost (though these might be final values)
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}
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const POLLING_INTERVAL = 5000; // 5 seconds for polling
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// 定义终止状态常量，用于组件内多处使用
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const TERMINAL_STATUSES = ['COMPLETED', 'PAID', 'CANCELLED_BY_USER', 'CANCELLED_BY_SYSTEM', 'ERROR', 'ROBOT_TASK_TIMEOUT'];
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export default function ChargingStatusPage() {
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const { isAuthenticated, isLoading: authLoading } = useAuth();
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const router = useRouter();
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const [session, setSession] = useState<ActiveChargingSession | null | undefined>(undefined);
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const [isLoading, setIsLoading] = useState(true);
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const [error, setError] = useState<string | null>(null);
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const [isStopping, setIsStopping] = useState(false);
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const [elapsedTime, setElapsedTime] = useState("00:00:00");
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const fetchActiveSession = useCallback(async () => {
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if (!isAuthenticated) return;
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try {
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const response = await api.get<BaseResponse<ActiveChargingSession | null>>('/session/my/active');
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console.log('Active charging session response:', response.data);
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if (response.data && response.data.code === 0) {
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const activeSessionData = response.data.data;
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setSession(activeSessionData);
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setError(null);
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if (activeSessionData) {
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console.log('Current session status:', activeSessionData.status);
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if (TERMINAL_STATUSES.includes(activeSessionData.status)) {
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setTimeout(() => router.push('/dashboard'), 3000);
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}
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} else {
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console.log('No active charging session found');
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}
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} else {
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setError(response.data?.message || '获取充电状态失败');
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}
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} catch (err: any) {
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console.error("Error fetching active session:", err);
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setError(err.response?.data?.message || err.message || '网络错误，无法获取充电状态');
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} finally {
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setIsLoading(false);
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}
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}, [isAuthenticated, router]);
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useEffect(() => {
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if (!authLoading && !isAuthenticated) {
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router.replace('/login');
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return;
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}
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if (isAuthenticated) {
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setIsLoading(true);
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fetchActiveSession();
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}
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}, [authLoading, isAuthenticated, router, fetchActiveSession]);
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useEffect(() => {
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let intervalId: NodeJS.Timeout;
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if (isAuthenticated && session && !isLoading) {
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if (session && !TERMINAL_STATUSES.includes(session.status)) {
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intervalId = setInterval(fetchActiveSession, POLLING_INTERVAL);
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}
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}
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return () => clearInterval(intervalId);
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}, [isAuthenticated, session, isLoading, fetchActiveSession]);
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const calculateDuration = useCallback((startTime: string | null): string => {
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if (!startTime) return '00:00:00';
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const start = new Date(startTime).getTime();
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const now = Date.now();
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if (now < start) return '00:00:00';
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let diff = Math.floor((now - start) / 1000);
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const hours = String(Math.floor(diff / 3600)).padStart(2, '0');
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diff %= 3600;
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const minutes = String(Math.floor(diff / 60)).padStart(2, '0');
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const seconds = String(diff % 60).padStart(2, '0');
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return `${hours}:${minutes}:${seconds}`;
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}, []);
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useEffect(() => {
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let timerId: NodeJS.Timeout;
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if (session && session.chargeStartTime && (session.status === 'CHARGING_STARTED' || session.status === 'CHARGING_IN_PROGRESS')) {
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setElapsedTime(calculateDuration(session.chargeStartTime)); // Initial calculation
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timerId = setInterval(() => {
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setElapsedTime(calculateDuration(session.chargeStartTime));
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}, 1000);
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} else if (session && session.chargeStartTime) {
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setElapsedTime(calculateDuration(session.chargeStartTime)); // Calculate final duration once if session ended
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} else {
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setElapsedTime('00:00:00');
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}
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return () => clearInterval(timerId);
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}, [session, calculateDuration]);
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const handleStopCharging = async () => {
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if (!session || !session.id) {
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setError("无法停止充电：无效的会话信息。");
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return;
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}
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setIsStopping(true);
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setError(null);
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try {
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const response = await api.post<BaseResponse<any>>(`/session/stop`, { sessionId: session.id });
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if (response.data && response.data.code === 0) {
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// Rely on polling to update the session state
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// Optionally, trigger an immediate refresh:
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fetchActiveSession();
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} else {
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setError(response.data?.message || "停止充电请求失败");
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}
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} catch (err: any) {
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console.error("Error stopping charging session:", err);
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setError(err.response?.data?.message || err.message || "停止充电时发生错误");
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}
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setIsStopping(false);
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};
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if (authLoading || (isLoading && session === undefined)) {
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return <LoadingSpinner />;
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}
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if (!isAuthenticated) {
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return <div className="p-4 text-center">请先登录。</div>;
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}
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return (
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<div className="min-h-screen bg-gray-100 p-4 md:p-8 flex flex-col items-center">
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<div className="w-full max-w-2xl">
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<header className="mb-8 flex items-center">
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<Link href="/dashboard" className="text-indigo-600 hover:text-indigo-700 mr-4">
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<FiArrowLeft size={24} />
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</Link>
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<h1 className="text-3xl font-bold text-gray-800">充电状态</h1>
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</header>
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{error && (
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<div className="mb-6 p-4 bg-red-100 text-red-700 border border-red-300 rounded-md shadow-sm" role="alert">
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<div className="flex items-center">
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<FiAlertCircle className="mr-2" />
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<p>{error}</p>
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</div>
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</div>
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)}
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{session === null && !error && (
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<div className="bg-white p-8 rounded-xl shadow-xl text-center">
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<FiInfo size={48} className="mx-auto text-blue-500 mb-4" />
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<h2 className="text-2xl font-semibold text-gray-700 mb-2">无活动充电会话</h2>
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<p className="text-gray-600 mb-6">您当前没有正在进行的充电。是否要开始新的充电？</p>
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<Link href="/request-charging" className="inline-block bg-indigo-600 hover:bg-indigo-700 text-white font-semibold py-3 px-6 rounded-lg shadow-md transition duration-150 ease-in-out">
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前往充电
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</Link>
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</div>
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)}
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{session && (
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<div className="bg-white p-6 md:p-8 rounded-xl shadow-xl">
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<div className="mb-6 border-b pb-4 border-gray-200">
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<h2 className="text-2xl font-semibold text-gray-700 mb-1">会话ID: {session.id}</h2>
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<p className={`text-lg font-medium ${session.status === 'CHARGING_STARTED' || session.status === 'CHARGING_IN_PROGRESS' ? 'text-green-500' : 'text-gray-600'}`}>
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状态: {session.status}
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</p>
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</div>
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<div className="grid grid-cols-1 md:grid-cols-2 gap-6 mb-6">
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<div>
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<p className="text-sm text-gray-500">车位编号</p>
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<p className="text-lg font-medium text-gray-800">{session.spotUidSnapshot || 'N/A'}</p>
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</div>
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<div>
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<p className="text-sm text-gray-500">机器人编号</p>
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<p className="text-lg font-medium text-gray-800">{session.robotUidSnapshot || 'N/A'}</p>
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</div>
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<div>
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<p className="text-sm text-gray-500">开始时间</p>
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<p className="text-lg font-medium text-gray-800">
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{session.chargeStartTime ? new Date(session.chargeStartTime).toLocaleString() : '等待开始'}
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</p>
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</div>
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<div>
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<p className="text-sm text-gray-500">已充电时长</p>
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<p className="text-2xl font-bold text-indigo-600 tabular-nums">
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<FiClock className="inline mr-2 mb-1" />{elapsedTime}
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</p>
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</div>
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</div>
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<div className="mb-8">
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<p className="text-sm text-gray-500 mb-1">充电进度 (基于时间)</p>
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<div className="w-full bg-gray-200 rounded-full h-4 overflow-hidden">
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<div className={`bg-green-500 h-4 ${session.status === 'CHARGING_STARTED' || session.status === 'CHARGING_IN_PROGRESS' ? 'animate-pulse-fast' : ''}`} style={{ width: '100%' }}></div>
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</div>
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<p className="text-xs text-gray-500 mt-1">充电电量将根据总充电时间计算。</p>
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</div>
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{/* 根据会话状态显示不同的内容 */}
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{(session.status === 'CHARGING_STARTED' || session.status === 'CHARGING_IN_PROGRESS' || session.status === 'ROBOT_ARRIVED' || session.status === 'ROBOT_ASSIGNED') ? (
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// 显示停止充电按钮
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<button
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onClick={handleStopCharging}
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disabled={isStopping}
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className="w-full bg-red-500 hover:bg-red-600 text-white font-bold py-3 px-4 rounded-lg shadow-md transition duration-150 ease-in-out disabled:opacity-60 disabled:cursor-not-allowed flex items-center justify-center"
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>
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{isStopping ? (
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<>
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<svg className="animate-spin -ml-1 mr-3 h-5 w-5 text-white" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
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<circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4"></circle>
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<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
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</svg>
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正在停止...
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</>
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) : (
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<><FiPower className="mr-2" /> 停止充电</>
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)}
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</button>
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) : (
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// 会话状态不适合显示停止按钮，显示原因
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<div className="mb-2 p-3 bg-yellow-50 border border-yellow-200 rounded-md text-sm text-yellow-700">
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当前会话状态为 <strong>{session.status}</strong>，无法执行停止充电操作。
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{TERMINAL_STATUSES.includes(session.status) && " 会话已结束或处于终止状态。"}
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</div>
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)}
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{(session.status === 'COMPLETED' || session.status === 'PAID' || session.status === 'PAYMENT_PENDING') && (
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<div className="mt-6 text-center p-4 bg-green-50 border-green-200 border rounded-md">
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<FiCheckCircle size={28} className="text-green-500 mx-auto mb-2" />
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<p className="text-green-700 font-semibold">充电已完成或等待支付。</p>
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<p className="text-sm text-gray-600">感谢您的使用！</p>
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<Link href="/my-sessions" className="mt-3 inline-block text-indigo-600 hover:text-indigo-800 font-medium">
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查看充电记录
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</Link>
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</div>
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)}
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</div>
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)}
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</div>
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</div>
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);
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}
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