import React, { useState, useEffect, useRef } from "react";
import { Button, Checkbox, CheckboxProps, message, Switch } from "antd";
import { useNavigate } from "react-router";
import {
	fetchAnalysisReport,
	getBaseRecordPointSetByCode,
	saveMeasurement,
	startMeasurement,
} from "../../../services/measure/analysis";
import { createWebSocket, sharedWsUrl } from "../../../services/socket";
import { switchMeasureAfterSave } from "../../../store/features/contextSlice";
import { AnalysisReport, AnalyzeAngle } from "../../../services/measure/type";
import { MeasureState, TaskState, taskStatusDescMap, TrackRecordSig } from "../../../services/wsTypes";
import { useAppDispatch, useAppSelector } from "../../../utils/hooks";
import Gr_round from "../../../assets/green_round.svg";
import Bl_round from "../../../assets/blue_round.svg";
import MeasurementCanvas, { AnalysisData, BenchmarkShape, MeasurementCanvasRef } from "./konva/MeasurementCanvas";
import "./MeasureAction.scss";

// 创建 websocket 客户端
const wsClient = createWebSocket(sharedWsUrl);

export default function MeasureAction() {
	const dispatch = useAppDispatch();
	const navigate = useNavigate();

	/** ----------------------- 引用 ----------------------- **/
	const canvasRef = useRef<MeasurementCanvasRef>(null);
	const leftPoints = useRef<{ x: number; y: number }[]>([]);
	const rightPoints = useRef<{ x: number; y: number }[]>([]);
	const isLeftFinished = useRef(false);

	/** ----------------------- 状态 ----------------------- **/
	const [showGrid, setShowGrid] = useState(true);
	const [showStandard, setShowStandard] = useState(true);
	const [showMark, setShowMark] = useState(true);
	const [angleMarkBackup, setAngleMarkBackup] = useState(true);
	const afterSave = useAppSelector(store => store.context.newMeasureAfterSave);
	// const [angles, setAngles] = useState<AnalyzeAngle[]>([]);
	// const [taskStatus, setTaskStatus] = useState<MeasureState["data"]["taskStatus"]>("IDLE");
	const [startBtnText, setStartBtnText] = useState("开始测量");
	const [measurementFinished, setMeasurementFinished] = useState(false);
	const [analysisClicked, setAnalysisClicked] = useState(false);
	const [saveClicked, setSaveClicked] = useState(false);
	const [analysisReport, setAnalysisReport] = useState<AnalysisReport | null>(null);
	const [showAnalysisTable, setShowAnalysisTable] = useState(false);
	// const [taskStatusName, setTaskStatusName] = useState("");

	// 初始状态列表
	const initialStatusList = [
		{ statusCode: "START_RECORD_LEFT", name: "请移动到顶部，停顿2秒", background: "#ececec", isReady: false, color: "h" },
		{ statusCode: "START_RECORD_LEFT", name: "开始测量左侧", background: "#ececec", isReady: false, color: "h" },
		{ statusCode: "START_RECORD_LEFT", name: "左侧测量完成", background: "#ececec", isReady: false, color: "h" },
		{ statusCode: "START_RECORD_LEFT", name: "请移动到顶部，停顿2秒", background: "#ececec", isReady: false, color: "h" },
		{ statusCode: "START_RECORD_LEFT", name: "开始测量右侧", background: "#ececec", isReady: false, color: "h" },
		{ statusCode: "START_RECORD_LEFT", name: "右侧测量完成", background: "#ececec", isReady: false, color: "h" },
	];
	const [statusList, setStatusList] = useState(initialStatusList);

	/** ----------------------- 事件处理函数 ----------------------- */
	// 切换保存后自动开始新测量
	const onAfterSaveChange: CheckboxProps["onChange"] = e => {
		dispatch(switchMeasureAfterSave(e.target.checked));
	};

	// 分析按钮点击事件
	const onAnalysisBtnClick = () => {
		setAnalysisClicked(true);
		fetchAnalysisReport("6001").then(res => {
			if (res.success) {
				const report: AnalysisReport = res.data;
				console.log(report);
				// 更新 canvas 的分析数据
				if (report && report.angleAnalysisList) {
					// 先过滤掉 distance 为 null 的数据
					const validItems = report.angleAnalysisList.filter(item => item.distance !== null);
					const analysisData: AnalysisData[] = validItems.map(item => ({
						pointA: { x: parseFloat(item.pointA.x), y: parseFloat(item.pointA.y) },
						pointB: { x: parseFloat(item.pointB.x), y: parseFloat(item.pointB.y) },
						base: { x: parseFloat(item.pointA.x), y: parseFloat(item.pointA.y) },
						measure: { x: parseFloat(item.pointB.x), y: parseFloat(item.pointB.y) },
						distance: parseFloat(item.distance),
						describe: item.describe,
					}));
					canvasRef.current?.setAnalysisData(analysisData);
				}
				setAnalysisReport(report);
				setShowAnalysisTable(true);
			} else {
				message.error("分析报告请求失败: " + res.data.info);
			}
		});
	};


	// 开始/重新测量按钮点击事件
	const onStart = () => {
		if (startBtnText === "新测量") {
			navigate("../newMeasure");
			return;
		}
		// 重置测量相关状态
		setShowAnalysisTable(false);
		setMeasurementFinished(false);
		setAnalysisClicked(false);
		setSaveClicked(false);
		isLeftFinished.current = false;
		leftPoints.current = [];
		rightPoints.current = [];
		canvasRef.current?.clearShapes();
		canvasRef.current?.resetCanvas();
		if (startBtnText === "重新测量") {
			setStatusList(initialStatusList);
		}
		startMeasurement().then(res => {
			if (res.status !== 0) {
				message.error(res.data.info);
				// setTaskStatusName(taskStatusDescMap["IDLE"]);
			} else {
				const newStatusList = [...initialStatusList];
				newStatusList[0].color = "b";
				setStatusList(newStatusList);
				message.success("已通知设备开始测量");
				// setTaskStatusName(taskStatusDescMap["IDLE"]);
				setStartBtnText("重新测量");
			}
		});
	};

	// 保存按钮点击事件
	const onSaveBtnClick = () => {
		setSaveClicked(true);
		saveMeasurement().then(res => {
			if (res.status !== 0) {
				message.error(res.data.info);
			} else {
				message.success("保存成功");
				if (afterSave) {
					navigate("../config");
				} else {
					setStartBtnText("新测量");
				}
			}
		});
	};

	// 辅助函数：渲染状态项的图标
	const renderStatusIcon = (item: (typeof initialStatusList)[0]) => {
		if (item.color === "g") {
			return <img src={Gr_round} alt="green" />;
		} else if (item.color === "b") {
			return <img src={Bl_round} alt="blue" />;
		} else {
			return (
				<div
					style={{
						width: "22px",
						height: "22px",
						background: "#c0c0c0",
						borderRadius: "50%",
						marginTop: "10px",
					}}
				/>
			);
		}
	};

	/** ----------------------- WebSocket 消息处理 ----------------------- **/
	useEffect(() => {
		// 处理任务状态消息
		const handleStateMessage = (state: MeasureState["data"]) => {
			
		};

		// 处理事件消息
		const handleEventMessage = (type: TaskState["data"]) => {
			setStatusList(prev => {
				const updated = [...prev];
				switch (type) {
					case "START_RECORD_LEFT":
						updated[0].color = "g";
						updated[1].color = "b";
						const audio1 = new Audio("/audio/begin_left.mp3");
						// 播放音频
						audio1
							.play()
							.then(() => {
								console.log("音频开始播放");
							})
							.catch(err => {
								console.error("播放音频时出错:", err);
							});
						break;
					case "FINISH_RECORD_LEFT":
						updated[1].color = "g";
						updated[2].color = "g";
						updated[3].color = "b";
						isLeftFinished.current = true;
						const audio2 = new Audio("/audio/end_left.mp3");
						// 播放音频
						audio2
							.play()
							.then(() => {
								console.log("音频开始播放");
							})
							.catch(err => {
								console.error("播放音频时出错:", err);
							});
						break;
					case "START_RECORD_RIGHT":
						updated[3].color = "g";
						updated[4].color = "b";
						const audio3 = new Audio("/audio/begin_right.mp3");
						// 播放音频
						audio3
							.play()
							.then(() => {
								console.log("音频开始播放");
							})
							.catch(err => {
								console.error("播放音频时出错:", err);
							});
						break;
					case "FINISH_RECORD_RIGHT":
						updated[4].color = "g";
						updated[5].color = "g";
						setMeasurementFinished(true);
						const audio4 = new Audio("/audio/end_right.mp3");
						// 播放音频
						audio4
							.play()
							.then(() => {
								console.log("音频开始播放");
							})
							.catch(err => {
								console.error("播放音频时出错:", err);
							});
						break;
					default:
						break;
				}
				return updated;
			});
		};

		// 处理点数据消息
		const handlePointReport = (pointData: TrackRecordSig["data"]) => {
			console.log(`pointData === ${pointData.x},${pointData.y}`);
			if (!isLeftFinished.current) {
				leftPoints.current.push(pointData);
				canvasRef.current?.setMeasurementDataLeft([...leftPoints.current]);
			} else {
				rightPoints.current.push(pointData);
				canvasRef.current?.setMeasurementDataRight([...rightPoints.current]);
			}
		};

		const subscription = wsClient.dataOb.subscribe((data) => {
			if ( data.path === "/measurement-task/get-task-state") {
				handleStateMessage(data.data);
			} else if (data.path === "/measurement-task/event") {
				handleEventMessage(data.data);
			} else if (data.path === "/measurement-task/point-report") {
				handlePointReport(data.data);
			}
		});
		wsClient.connect();
		return () => subscription.unsubscribe();
	}, []);

	/** ----------------------- 页面加载获取基础图形数据 ----------------------- **/
	useEffect(() => {
		getBaseRecordPointSetByCode("6001").then(res => {
			if (res.success) {
				const benchmarkShapes = JSON.parse(res.data.points) as BenchmarkShape[];
				if (canvasRef.current) {
					console.log("解析后的基础图形数据：", benchmarkShapes);
					canvasRef.current.setBenchmarkData(benchmarkShapes);
				}
			}
		});
	}, []);

	/** ----------------------- 渲染 ----------------------- **/
	return (
		<div className="flex h-full px-6">
			{/* 左侧区域：包含开关区域和测量画布 */}
			<div className="">
				<div className="flex gap-4 items-center px-6 pt-5">
					{/* 参考线开关 */}
					<div className="flex gap-2 items-center">
						<Switch defaultChecked onChange={checked => setShowGrid(checked)} />
						<span>参考线</span>
					</div>
					{/* 标准线开关 */}
					<div className="flex gap-2 items-center">
						<Switch
							checked={showStandard}
							onChange={checked => {
								setShowStandard(checked);
								if (!checked) {
									setAngleMarkBackup(showMark);
									setShowMark(false);
								} else {
									setShowMark(angleMarkBackup);
								}
							}}
						/>
						<span>标准线</span>
					</div>
					{/* 角度线开关，仅在点击分析按钮后显示 */}
					{analysisClicked && (
						<div className="flex gap-2 items-center">
							<Switch
								checked={showMark}
								disabled={!showStandard}
								onChange={checked => {
									setShowMark(checked);
									setAngleMarkBackup(checked);
								}}
							/>
							<span>角度线</span>
						</div>
					)}
				</div>
				<div className="relative m-2">
					<MeasurementCanvas
						width={800}
						height={600}
						logicalExtent={{ minX: -50, maxX: 50, minY: -20, maxY: 60 }}
						gridStep={1}
						origin={{ x: 0, y: 20 }}
						pixelPerMm={8}
						maxZoom={10}
						showGrid={showGrid}
						showBenchmark={showStandard}
						showAnalysis={showMark}
						showScale={false}
						scaleInterval={1}
						showCoordinates={showGrid}
						ref={canvasRef}
					/>
				</div>
			</div>
			{/* 右侧区域：根据 showAnalysisTable 状态显示测量步骤或分析表格 */}
			<div className="min-w-[300px] flex-auto py-6 flex flex-col items-center">
				{showAnalysisTable && analysisReport ? (
					<>
						<header className="bg-[#e8f0ff] w-[300px] text-center text-lg font-medium py-2 text-primary border border-[#c1c6d4]">
							分析
						</header>
						<div className="analysis-table">
							<table
								style={{
									width: "100%",
									borderCollapse: "collapse",
									border: "1px solid #ccc",
									textAlign: "center",
								}}>
								<tbody>
									<tr style={{ height: "40px", fontSize: "18px", color: "#9E9E9E" }}>
										<td style={{ padding: "8px", border: "1px solid #ccc" }}>W1垂直磨耗</td>
										<td style={{ padding: "8px", border: "1px solid #ccc" }}>{analysisReport.w1}</td>
									</tr>
									<tr style={{ height: "40px", fontSize: "18px", color: "#9E9E9E" }}>
										<td style={{ padding: "8px", border: "1px solid #ccc" }}>轨头宽度</td>
										<td style={{ padding: "8px", border: "1px solid #ccc" }}>
											{analysisReport.railHeadWidth}
										</td>
									</tr>
									{analysisReport.angleAnalysisList.map((item, index) => (
										<tr key={index} style={{ height: "40px", fontSize: "18px", color: "#9E9E9E" }}>
											<td style={{ padding: "8px", border: "1px solid #ccc" }}>{item.describe}</td>
											<td style={{ padding: "8px", border: "1px solid #ccc" }}>{item.distance}</td>
										</tr>
									))}
								</tbody>
							</table>
						</div>

						<Button
							style={{ width: 200, marginTop: 18 }}
							size="large"
							type="primary"
							onClick={() => navigate("../config")}>
							新测量
						</Button>
					</>
				) : (
					<div>
						<h1 className="font-medium text-xl text-center">测量步骤</h1>
						<div className="w-[13rem] mt-5">
							{statusList.map((item, index) => (
								<div
									key={index}
									style={{ background: item.background, borderRadius: "20px" }}
									className="mt-[10px] h-[40px]">
									<div style={{ display: "flex", lineHeight: "40px" }} className="pl-[1rem]">
										{renderStatusIcon(item)}
										<div className="pl-[5px]">{item.name}</div>
									</div>
								</div>
							))}
						</div>
						<section className="flex flex-col items-center gap-4 mt-6 border-t border-[#D8D8D8] py-4">
							<Button style={{ width: 200 }} size="large" type="primary" onClick={onStart}>
								{startBtnText}
							</Button>
							<Button
								style={{ width: 200 }}
								size="large"
								type="primary"
								onClick={onAnalysisBtnClick}
								disabled={!measurementFinished || analysisClicked}>
								分析
							</Button>
							<Button
								style={{ width: 200 }}
								size="large"
								type="primary"
								onClick={onSaveBtnClick}
								disabled={!measurementFinished || saveClicked}>
								保存
							</Button>
							<Checkbox checked={afterSave} onChange={onAfterSaveChange}>
								保存后自动开始新测量
							</Checkbox>
						</section>
					</div>
				)}
			</div>
		</div>
	);
}