2569718930@qq.com
866 lines
29 KiB
JavaScript
866 lines
29 KiB
JavaScript
/**
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* PolyWeather 地图 — 前端应用
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Leaflet 地图 + 详情面板 + Chart.js 温度走势
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*/
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// ──────────────────────────────────────────────────────────
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// State
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// ──────────────────────────────────────────────────────────
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let map = null;
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let markers = {}; // cityName → Leaflet marker
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let cityDataCache = {}; // cityName → API response
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let selectedCity = null;
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let tempChart = null;
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const AUTO_REFRESH_MS = 60 * 60 * 1000; // 1 hour
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// ──────────────────────────────────────────────────────────
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// Map Setup
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// ──────────────────────────────────────────────────────────
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function initMap() {
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map = L.map("map", {
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center: [30, 10],
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zoom: 3,
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minZoom: 2,
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maxZoom: 12,
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zoomControl: false,
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attributionControl: true,
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});
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// Move zoom control to bottom right to avoid overlapping with city list
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L.control.zoom({ position: "bottomright" }).addTo(map);
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// CartoDB Dark Matter tiles (free, dark theme)
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L.tileLayer("https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}{r}.png", {
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attribution:
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'© <a href="https://www.openstreetmap.org/">OSM</a> © <a href="https://carto.com/">CARTO</a>',
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subdomains: "abcd",
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maxZoom: 19,
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}).addTo(map);
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// Close panel and clear selection when clicking on empty map space
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map.on("click", () => {
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closePanel();
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});
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}
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// ──────────────────────────────────────────────────────────
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// Markers
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// ──────────────────────────────────────────────────────────
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function createMarkerIcon(city) {
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const riskClass = `risk-${city.risk_level}`;
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const label = city.display_name;
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// Short name for marker
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const unitSym = city.temp_unit === "fahrenheit" ? "°F" : "°C";
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const shortName = label.length > 10 ? label.substring(0, 8) + "…" : label;
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const tempText = city._temp !== undefined ? `${city._temp}${unitSym}` : "—";
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const html = `
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<div class="city-marker" data-city="${city.name}">
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<div class="marker-bubble ${riskClass}">${tempText}</div>
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<div class="marker-name">${shortName}</div>
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</div>
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`;
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return L.divIcon({
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html: html,
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className: "",
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iconSize: [60, 40],
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iconAnchor: [30, 40],
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});
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}
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function addCityMarkers(cities) {
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cities.forEach((city) => {
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const icon = createMarkerIcon(city);
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const marker = L.marker([city.lat, city.lon], { icon })
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.addTo(map)
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.on("click", () => loadCityDetail(city.name));
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markers[city.name] = { marker, city };
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});
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document.getElementById("cityCount").textContent = cities.length;
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}
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function updateMarkerTemp(cityName, temp) {
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const entry = markers[cityName];
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if (!entry) return;
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entry.city._temp = temp;
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entry.marker.setIcon(createMarkerIcon(entry.city));
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}
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function setSelectedMarker(cityName) {
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// Remove previous selection
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Object.values(markers).forEach(({ marker }) => {
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const el = marker.getElement();
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if (el) el.querySelector(".city-marker")?.classList.remove("selected");
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});
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// Add selection
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const entry = markers[cityName];
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if (entry) {
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const el = entry.marker.getElement();
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if (el) el.querySelector(".city-marker")?.classList.add("selected");
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}
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}
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// ──────────────────────────────────────────────────────────
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// City List Sidebar
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// ──────────────────────────────────────────────────────────
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function buildCityList(cities) {
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const container = document.getElementById("cityListItems");
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container.innerHTML = "";
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// Sort: high risk first, then medium, then low
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const order = { high: 0, medium: 1, low: 2 };
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const sorted = [...cities].sort(
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(a, b) => (order[a.risk_level] ?? 3) - (order[b.risk_level] ?? 3),
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);
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sorted.forEach((city) => {
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const div = document.createElement("div");
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div.className = "city-item";
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const cityId = city.name.replace(/\s/g, "-");
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div.id = `city-item-${cityId}`;
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div.innerHTML = `
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<div class="city-item-main">
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<span class="risk-dot ${city.risk_level}"></span>
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<span class="city-name-text">${city.display_name}</span>
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<span class="city-temp" id="temp-${cityId}">—</span>
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</div>
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<div class="city-item-info">
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<span class="city-local-time" id="time-${cityId}"></span>
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<span class="city-max-info" id="max-${cityId}"></span>
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</div>
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`;
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div.addEventListener("click", () => {
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loadCityDetail(city.name);
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});
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container.appendChild(div);
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});
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}
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function setActiveCityItem(cityName) {
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document
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.querySelectorAll(".city-item")
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.forEach((el) => el.classList.remove("active"));
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const id = `city-item-${cityName.replace(/\s/g, "-")}`;
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const el = document.getElementById(id);
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if (el) {
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el.classList.add("active");
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el.scrollIntoView({ behavior: "smooth", block: "nearest" });
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}
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}
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function updateCityListInfo(cityData) {
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const cityName = cityData.name;
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const cityId = cityName.replace(/\s/g, "-");
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const temp =
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cityData.current?.max_so_far != null &&
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cityData.current.max_so_far >= (cityData.current.temp || -999)
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? cityData.current.max_so_far
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: cityData.current.temp;
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// Update Temperature
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const tempEl = document.getElementById(`temp-${cityId}`);
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if (tempEl && temp != null) {
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tempEl.textContent = `${temp}${cityData.temp_symbol}`;
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tempEl.classList.add("loaded");
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}
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// Update Local Time
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const timeEl = document.getElementById(`time-${cityId}`);
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if (timeEl && cityData.local_time) {
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timeEl.textContent = `🕐 ${cityData.local_time}`;
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}
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// Update Max Temp Time
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const maxEl = document.getElementById(`max-${cityId}`);
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if (maxEl && cityData.current?.max_temp_time) {
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maxEl.textContent = `峰值 @${cityData.current.max_temp_time}`;
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}
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}
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// ──────────────────────────────────────────────────────────
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// API Calls
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// ──────────────────────────────────────────────────────────
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async function fetchCities() {
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try {
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const res = await fetch("/api/cities");
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const data = await res.json();
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return data.cities || [];
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} catch (e) {
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console.error("Failed to fetch cities:", e);
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return [];
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}
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}
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async function fetchCityDetail(cityName) {
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const urlName = cityName.replace(/\s/g, "-");
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const res = await fetch(`/api/city/${encodeURIComponent(urlName)}`);
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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return await res.json();
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}
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// ──────────────────────────────────────────────────────────
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// Load & Render City Detail
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// ──────────────────────────────────────────────────────────
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async function loadCityDetail(cityName) {
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selectedCity = cityName;
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setActiveCityItem(cityName);
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setSelectedMarker(cityName);
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showLoading(true);
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try {
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const data = await fetchCityDetail(cityName);
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cityDataCache[cityName] = data;
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renderPanel(data);
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// Cinematic Zoom-in Camera
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if (data.lat != null && data.lon != null) {
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map.flyTo([data.lat, data.lon], 10, {
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animate: true,
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duration: 1.5,
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easeLinearity: 0.25,
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});
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}
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// Update marker and list
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if (data.current?.temp != null) {
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const displayTemp =
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data.current.max_so_far != null &&
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data.current.max_so_far >= data.current.temp
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? data.current.max_so_far
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: data.current.temp;
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updateMarkerTemp(cityName, displayTemp);
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updateCityListInfo(data);
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}
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} catch (e) {
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console.error(`Failed to load ${cityName}:`, e);
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alert(`加载 ${cityName} 数据失败：${e.message}`);
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} finally {
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showLoading(false);
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}
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}
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function showLoading(show) {
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document.getElementById("loading").classList.toggle("hidden", !show);
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}
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// ──────────────────────────────────────────────────────────
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// Panel Rendering
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// ──────────────────────────────────────────────────────────
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function renderPanel(data) {
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const panel = document.getElementById("panel");
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panel.classList.remove("hidden");
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// Trigger reflow for animation
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requestAnimationFrame(() => panel.classList.add("visible"));
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// Header
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document.getElementById("panelCityName").textContent =
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`${data.risk?.emoji || "🏙️"} ${data.display_name}`;
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document.getElementById("panelLocalTime").textContent =
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`🕐 ${data.local_time || "—"} 当地时间`;
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const badge = document.getElementById("panelRiskBadge");
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badge.textContent =
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{
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high: "🔴 高危",
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medium: "🟡 中危",
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low: "🟢 低危",
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}[data.risk?.level] || "未知";
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badge.className = `risk-badge ${data.risk?.level || "low"}`;
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// Hero
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renderHero(data);
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// Chart
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renderChart(data);
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// Probabilities
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renderProbabilities(data);
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// Multi-model
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renderModels(data);
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// Forecast
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renderForecast(data);
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// AI
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renderAI(data);
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// Risk
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renderRisk(data);
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}
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const METAR_WX_MAP = {
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RA: { label: "降雨", icon: "🌧️" },
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"-RA": { label: "轻雨", icon: "🌦️" },
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"+RA": { label: "强降雨", icon: "⛈️" },
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SN: { label: "降雪", icon: "❄️" },
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"-SN": { label: "轻雪", icon: "🌨️" },
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"+SN": { label: "大雪", icon: "🏔️" },
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DZ: { label: "毛毛雨", icon: "🌦️" },
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FG: { label: "雾", icon: "🌫️" },
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BR: { label: "薄雾", icon: "🌫️" },
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HZ: { label: "霾", icon: "🌫️" },
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TS: { label: "雷暴", icon: "⛈️" },
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VCTS: { label: "附近雷暴", icon: "⛈️" },
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SQ: { label: "飑", icon: "💨" },
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GS: { label: "冰雹", icon: "🌨️" },
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};
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function translateMETAR(code) {
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if (!code) return null;
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// Handle complex codes like "-RA FG" or "TSRA"
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for (const [key, val] of Object.entries(METAR_WX_MAP)) {
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if (code.includes(key)) return val;
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}
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return { label: code, icon: "🌡️" };
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}
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function renderHero(data) {
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const cur = data.current || {};
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const sym = data.temp_symbol || "°C";
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const displayTemp =
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cur.max_so_far != null && cur.max_so_far >= (cur.temp || -999)
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? cur.max_so_far
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: cur.temp;
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// Use cloud_desc or wx_desc
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let weatherText = cur.cloud_desc || "未知";
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let weatherIcon =
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{
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多云: "⛅",
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阴天: "☁️",
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少云: "🌤️",
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散云: "⛅",
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晴: "☀️",
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}[cur.cloud_desc] || "🌡️";
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// If we have a specific weather phenomenon (METAR wx_desc like -RA), prioritize it
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if (cur.wx_desc) {
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const metarTranslation = translateMETAR(cur.wx_desc);
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if (metarTranslation) {
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weatherText = metarTranslation.label;
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weatherIcon = metarTranslation.icon;
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}
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}
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document.getElementById("heroWeather").innerHTML = `
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<span>${weatherIcon} ${weatherText}</span>
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`;
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document.getElementById("heroTemp").textContent =
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displayTemp != null ? displayTemp.toFixed(1) : "—";
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document.getElementById("heroUnit").textContent = sym;
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// Show if it's the peak recorded temperature
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const isMax = cur.max_so_far != null && cur.max_so_far >= (cur.temp || -999);
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const maxTimeEl = document.getElementById("heroMaxTime");
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if (isMax && cur.max_temp_time) {
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maxTimeEl.textContent = `该城市今日最高温出现于当地时间 ${cur.max_temp_time}`;
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} else {
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maxTimeEl.textContent = "";
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}
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document.getElementById("heroCurrent").textContent =
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cur.temp != null ? `${cur.temp}${sym} @${cur.obs_time || "—"}` : "—";
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document.getElementById("heroWU").textContent =
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cur.wu_settlement != null ? `${cur.wu_settlement}${sym}` : "—";
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document.getElementById("heroDEB").textContent =
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data.deb?.prediction != null ? `${data.deb.prediction}${sym}` : "—";
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// Sub info
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const parts = [];
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if (cur.obs_time) {
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let ageStr = "";
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if (cur.obs_age_min != null && cur.obs_age_min >= 30) {
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ageStr = ` (${cur.obs_age_min}分钟前)`;
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}
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parts.push(`<span>✈️ METAR ${cur.obs_time}${ageStr}</span>`);
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}
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// Use translated wx_desc if available
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if (cur.wx_desc) {
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const trans = translateMETAR(cur.wx_desc);
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parts.push(`<span>${trans.icon} ${trans.label}</span>`);
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} else if (cur.cloud_desc) {
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// Already in hero, but keep it in sub if user wants detail
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parts.push(`<span>☁️ ${cur.cloud_desc}</span>`);
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}
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if (cur.wind_speed_kt != null) {
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parts.push(`<span>💨 ${cur.wind_speed_kt}kt</span>`);
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}
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if (cur.visibility_mi != null) {
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parts.push(`<span>👁️ ${cur.visibility_mi}mi</span>`);
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}
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// Trend badge
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const trend = data.trend || {};
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if (trend.is_dead_market) {
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parts.push('<span class="dead-market">☠️ 死盘</span>');
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} else if (trend.direction && trend.direction !== "unknown") {
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const labels = {
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rising: "📈 升温中",
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falling: "📉 降温中",
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stagnant: "⏸️ 已停滞",
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mixed: "📊 波动中",
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};
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parts.push(
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`<span class="trend-badge ${trend.direction}">${labels[trend.direction] || trend.direction}</span>`,
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);
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}
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document.getElementById("heroSub").innerHTML = parts.join("");
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}
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function renderChart(data) {
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const hourly = data.hourly || {};
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const times = hourly.times || [];
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const temps = hourly.temps || [];
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if (times.length === 0) {
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document.getElementById("chartLegend").textContent = "暂无小时数据";
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return;
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}
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// Find current hour index
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const curHour = data.local_time
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? data.local_time.split(":")[0] + ":00"
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: null;
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const curIdx = curHour ? times.indexOf(curHour) : -1;
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// Open-Meteo model: past = solid, future = dashed
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const pastTemps = temps.map((t, i) =>
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curIdx >= 0 && i <= curIdx ? t : null,
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);
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const futureTemps = temps.map((t, i) =>
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curIdx < 0 || i >= curIdx ? t : null,
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);
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// METAR observation scatter points
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const metarPoints = new Array(times.length).fill(null);
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const metarRecent = data.trend?.recent || [];
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if (metarRecent.length > 0) {
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metarRecent.forEach((r) => {
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// Match METAR time (e.g. "15:00") to chart time labels
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const idx = times.indexOf(r.time);
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if (idx >= 0) {
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metarPoints[idx] = r.temp;
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}
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});
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}
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const ctx = document.getElementById("tempChart").getContext("2d");
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if (tempChart) tempChart.destroy();
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const validTemps = temps.filter((t) => t != null);
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const validMetar = metarPoints.filter((t) => t != null);
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const allVals = [...validTemps, ...validMetar];
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const minTemp = Math.floor(Math.min(...allVals)) - 1;
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const maxTemp = Math.ceil(Math.max(...allVals)) + 1;
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tempChart = new Chart(ctx, {
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type: "line",
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data: {
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labels: times,
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datasets: [
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{
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label: "OM模型",
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data: pastTemps,
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borderColor: "rgba(99, 102, 241, 0.5)",
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backgroundColor: "rgba(99, 102, 241, 0.05)",
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borderWidth: 1.5,
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pointRadius: 0,
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pointHoverRadius: 3,
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fill: true,
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tension: 0.3,
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spanGaps: false,
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},
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{
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label: "OM预报",
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data: futureTemps,
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borderColor: "rgba(99, 102, 241, 0.4)",
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borderWidth: 1.5,
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borderDash: [5, 3],
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pointRadius: 0,
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fill: false,
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tension: 0.3,
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spanGaps: false,
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},
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{
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label: "METAR实测",
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data: metarPoints,
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borderColor: "#22d3ee",
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backgroundColor: "#22d3ee",
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|
borderWidth: 0,
|
|
pointRadius: 5,
|
|
pointHoverRadius: 7,
|
|
pointStyle: "circle",
|
|
fill: false,
|
|
showLine: false,
|
|
order: 0, // Draw on top
|
|
},
|
|
],
|
|
},
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false,
|
|
interaction: { intersect: false, mode: "index" },
|
|
plugins: {
|
|
legend: { display: false },
|
|
tooltip: {
|
|
backgroundColor: "rgba(15, 23, 42, 0.9)",
|
|
borderColor: "rgba(99, 102, 241, 0.3)",
|
|
borderWidth: 1,
|
|
titleFont: { family: "Inter", size: 12 },
|
|
bodyFont: { family: "Inter", size: 12 },
|
|
filter: (item) => item.parsed.y != null,
|
|
callbacks: {
|
|
label: (ctx) =>
|
|
`${ctx.dataset.label}: ${ctx.parsed.y?.toFixed(1)}${data.temp_symbol}`,
|
|
},
|
|
},
|
|
},
|
|
scales: {
|
|
x: {
|
|
grid: { color: "rgba(255,255,255,0.04)" },
|
|
ticks: {
|
|
color: "#64748b",
|
|
font: { size: 10, family: "Inter" },
|
|
maxRotation: 0,
|
|
callback: (val, idx) => (idx % 3 === 0 ? times[idx] : ""),
|
|
},
|
|
},
|
|
y: {
|
|
min: minTemp,
|
|
max: maxTemp,
|
|
grid: { color: "rgba(255,255,255,0.04)" },
|
|
ticks: {
|
|
color: "#64748b",
|
|
font: { size: 10, family: "Inter" },
|
|
callback: (v) => v + (data.temp_symbol || "°"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
});
|
|
|
|
// DEB prediction line annotation
|
|
if (data.deb?.prediction != null) {
|
|
const debY = data.deb.prediction;
|
|
tempChart.options.plugins.annotation = {
|
|
annotations: {
|
|
debLine: {
|
|
type: "line",
|
|
yMin: debY,
|
|
yMax: debY,
|
|
borderColor: "#34d399",
|
|
borderWidth: 1,
|
|
borderDash: [4, 4],
|
|
},
|
|
},
|
|
};
|
|
tempChart.update();
|
|
}
|
|
|
|
// METAR recent points overlay
|
|
const legend = document.getElementById("chartLegend");
|
|
if (data.trend?.recent?.length) {
|
|
const recentStr = [...data.trend.recent]
|
|
.slice(0, 4)
|
|
.reverse() // Fix chronologically left to right
|
|
.map((r) => `${r.temp}${data.temp_symbol}@${r.time}`)
|
|
.join(" → ");
|
|
legend.textContent = `METAR 趋势：${recentStr}`;
|
|
} else {
|
|
legend.textContent = "";
|
|
}
|
|
}
|
|
|
|
function renderProbabilities(data) {
|
|
const container = document.getElementById("probBars");
|
|
const probs = data.probabilities?.distribution || [];
|
|
const mu = data.probabilities?.mu;
|
|
|
|
if (probs.length === 0) {
|
|
container.innerHTML =
|
|
'<div style="color:var(--text-muted);font-size:13px;">暂无概率数据</div>';
|
|
return;
|
|
}
|
|
|
|
let html = "";
|
|
if (mu != null) {
|
|
html += `<div style="font-size:11px;color:var(--text-muted);margin-bottom:6px;">期望值 μ = ${mu}${data.temp_symbol}</div>`;
|
|
}
|
|
|
|
probs.forEach((p, i) => {
|
|
const pct = Math.round(p.probability * 100);
|
|
const width = Math.max(pct, 8);
|
|
html += `
|
|
<div class="prob-row">
|
|
<div class="prob-label">${p.value}${data.temp_symbol}</div>
|
|
<div class="prob-bar-track">
|
|
<div class="prob-bar-fill rank-${i}" style="width:0%">${pct}%</div>
|
|
</div>
|
|
</div>
|
|
`;
|
|
});
|
|
container.innerHTML = html;
|
|
|
|
// Animate bars
|
|
requestAnimationFrame(() => {
|
|
container.querySelectorAll(".prob-bar-fill").forEach((bar, i) => {
|
|
const pct = Math.round(probs[i].probability * 100);
|
|
bar.style.width = Math.max(pct, 8) + "%";
|
|
});
|
|
});
|
|
}
|
|
|
|
function renderModels(data) {
|
|
const container = document.getElementById("modelBars");
|
|
const models = data.multi_model || {};
|
|
const deb = data.deb?.prediction;
|
|
|
|
if (Object.keys(models).length === 0) {
|
|
container.innerHTML =
|
|
'<div style="color:var(--text-muted);font-size:13px;">暂无多模型数据</div>';
|
|
return;
|
|
}
|
|
|
|
const values = Object.values(models).filter((v) => v != null);
|
|
const minVal = Math.min(...values) - 1;
|
|
const maxVal = Math.max(...values) + 1;
|
|
const range = maxVal - minVal;
|
|
|
|
let html = "";
|
|
const sorted = Object.entries(models).sort(
|
|
(a, b) => (b[1] || 0) - (a[1] || 0),
|
|
);
|
|
|
|
sorted.forEach(([name, val]) => {
|
|
if (val == null) return;
|
|
const pct = ((val - minVal) / range) * 100;
|
|
const shortName = name.length > 10 ? name.substring(0, 9) + "…" : name;
|
|
html += `
|
|
<div class="model-row">
|
|
<div class="model-name" title="${name}">${shortName}</div>
|
|
<div class="model-bar-track">
|
|
<div class="model-bar-fill" style="width:${pct}%">${val}${data.temp_symbol}</div>
|
|
${deb != null ? `<div class="model-deb-line" style="left:${((deb - minVal) / range) * 100}%"></div>` : ""}
|
|
</div>
|
|
</div>
|
|
`;
|
|
});
|
|
|
|
// DEB row
|
|
if (deb != null) {
|
|
const pct = ((deb - minVal) / range) * 100;
|
|
html += `
|
|
<div class="model-row" style="margin-top:6px;border-top:1px solid rgba(255,255,255,0.06);padding-top:6px;">
|
|
<div class="model-name" style="color:var(--accent-cyan);font-weight:700;">DEB</div>
|
|
<div class="model-bar-track">
|
|
<div class="model-bar-fill deb" style="width:${pct}%">${deb}${data.temp_symbol}</div>
|
|
</div>
|
|
</div>
|
|
`;
|
|
}
|
|
|
|
container.innerHTML = html;
|
|
}
|
|
|
|
function renderForecast(data) {
|
|
const container = document.getElementById("forecastTable");
|
|
const daily = data.forecast?.daily || [];
|
|
const sym = data.temp_symbol || "°C";
|
|
|
|
if (daily.length === 0) {
|
|
container.innerHTML =
|
|
'<div style="color:var(--text-muted);font-size:13px;">暂无预报</div>';
|
|
return;
|
|
}
|
|
|
|
let html = "";
|
|
daily.forEach((d, i) => {
|
|
const isToday = i === 0;
|
|
const dateLabel = isToday ? "今天" : d.date.substring(5);
|
|
html += `
|
|
<div class="forecast-day ${isToday ? "today" : ""}">
|
|
<div class="f-date">${dateLabel}</div>
|
|
<div class="f-temp">${d.max_temp}${sym}</div>
|
|
</div>
|
|
`;
|
|
});
|
|
container.innerHTML = html;
|
|
|
|
// Sun info
|
|
const sunEl = document.getElementById("sunInfo");
|
|
const parts = [];
|
|
if (data.forecast?.sunrise) parts.push(`🌅 ${data.forecast.sunrise}`);
|
|
if (data.forecast?.sunset) parts.push(`🌇 ${data.forecast.sunset}`);
|
|
if (data.forecast?.sunshine_hours)
|
|
parts.push(`☀️ ${data.forecast.sunshine_hours}h`);
|
|
sunEl.innerHTML = parts.map((p) => `<span>${p}</span>`).join("");
|
|
}
|
|
|
|
function renderAI(data) {
|
|
const container = document.getElementById("aiAnalysis");
|
|
const text = data.ai_analysis || "";
|
|
|
|
if (!text) {
|
|
container.innerHTML = '<span class="ai-placeholder">AI 分析暂不可用</span>';
|
|
return;
|
|
}
|
|
|
|
// The AI output may contain HTML tags like <b>
|
|
container.innerHTML = text;
|
|
}
|
|
|
|
function renderRisk(data) {
|
|
const container = document.getElementById("riskInfo");
|
|
const risk = data.risk || {};
|
|
|
|
if (!risk.airport) {
|
|
container.innerHTML =
|
|
'<span style="color:var(--text-muted)">无风险档案</span>';
|
|
return;
|
|
}
|
|
|
|
container.innerHTML = `
|
|
<div class="risk-row"><span class="risk-label">📍 机场</span><span>${risk.airport} (${risk.icao})</span></div>
|
|
<div class="risk-row"><span class="risk-label">📏 距离</span><span>${risk.distance_km}km</span></div>
|
|
${risk.warning ? `<div class="risk-row"><span class="risk-label">⚠️ 注意</span><span>${risk.warning}</span></div>` : ""}
|
|
`;
|
|
}
|
|
|
|
// ──────────────────────────────────────────────────────────
|
|
// Panel Controls
|
|
// ──────────────────────────────────────────────────────────
|
|
function closePanel() {
|
|
const panel = document.getElementById("panel");
|
|
panel.classList.remove("visible");
|
|
setTimeout(() => panel.classList.add("hidden"), 400);
|
|
selectedCity = null;
|
|
setSelectedMarker(null);
|
|
document
|
|
.querySelectorAll(".city-item")
|
|
.forEach((el) => el.classList.remove("active"));
|
|
}
|
|
|
|
// ──────────────────────────────────────────────────────────
|
|
// Auto-Refresh
|
|
// ──────────────────────────────────────────────────────────
|
|
function startAutoRefresh() {
|
|
setInterval(async () => {
|
|
if (selectedCity) {
|
|
// Invalidate cache
|
|
delete cityDataCache[selectedCity];
|
|
try {
|
|
const data = await fetchCityDetail(selectedCity);
|
|
cityDataCache[selectedCity] = data;
|
|
renderPanel(data);
|
|
if (data.current?.temp != null) {
|
|
const displayTemp =
|
|
data.current.max_so_far != null &&
|
|
data.current.max_so_far >= data.current.temp
|
|
? data.current.max_so_far
|
|
: data.current.temp;
|
|
updateMarkerTemp(selectedCity, displayTemp);
|
|
updateCityListInfo(data);
|
|
}
|
|
flashLiveBadge();
|
|
} catch (e) {
|
|
console.warn("Auto-refresh failed:", e);
|
|
}
|
|
}
|
|
}, AUTO_REFRESH_MS);
|
|
}
|
|
|
|
function flashLiveBadge() {
|
|
const badge = document.getElementById("liveBadge");
|
|
badge.style.transform = "scale(1.1)";
|
|
setTimeout(() => {
|
|
badge.style.transform = "scale(1)";
|
|
}, 300);
|
|
}
|
|
|
|
// ──────────────────────────────────────────────────────────
|
|
// Background Progressive Loading
|
|
// ──────────────────────────────────────────────────────────
|
|
async function loadAllCitiesProgressively(cities) {
|
|
// 延迟 1 秒后开始后台加载，避免阻塞初始渲染
|
|
await new Promise((r) => setTimeout(r, 1000));
|
|
|
|
for (const city of cities) {
|
|
// Skip if already clicked/loaded or selected
|
|
if (!cityDataCache[city.name]) {
|
|
try {
|
|
const urlName = city.name.replace(/\s/g, "-");
|
|
const res = await fetch(`/api/city/${encodeURIComponent(urlName)}`);
|
|
if (res.ok) {
|
|
const data = await res.json();
|
|
cityDataCache[city.name] = data;
|
|
|
|
// 如果用户目前没有点击它，仅更新标记和列表
|
|
if (data.current?.temp != null) {
|
|
const displayTemp =
|
|
data.current.max_so_far != null &&
|
|
data.current.max_so_far >= data.current.temp
|
|
? data.current.max_so_far
|
|
: data.current.temp;
|
|
updateMarkerTemp(city.name, displayTemp);
|
|
updateCityListInfo(data);
|
|
}
|
|
|
|
// 如果恰好在这个时候用户选中了这个城市，顺便刷新面板
|
|
if (selectedCity === city.name) {
|
|
renderPanel(data);
|
|
}
|
|
}
|
|
} catch (e) {
|
|
console.warn(`Background load failed for ${city.name}`, e);
|
|
}
|
|
// 间隔 2000ms，避免瞬间并发轰炸后端 API，且让出浏览器主线程
|
|
await new Promise((r) => setTimeout(r, 2000));
|
|
}
|
|
}
|
|
}
|
|
|
|
// ──────────────────────────────────────────────────────────
|
|
// Init
|
|
// ──────────────────────────────────────────────────────────
|
|
document.addEventListener("DOMContentLoaded", async () => {
|
|
initMap();
|
|
|
|
// Panel close
|
|
document.getElementById("panelClose").addEventListener("click", closePanel);
|
|
|
|
// Escape key
|
|
document.addEventListener("keydown", (e) => {
|
|
if (e.key === "Escape") closePanel();
|
|
});
|
|
|
|
// Refresh all button
|
|
document
|
|
.getElementById("refreshAllBtn")
|
|
.addEventListener("click", async () => {
|
|
const btn = document.getElementById("refreshAllBtn");
|
|
btn.classList.add("spinning");
|
|
cityDataCache = {};
|
|
if (selectedCity) {
|
|
await loadCityDetail(selectedCity);
|
|
}
|
|
btn.classList.remove("spinning");
|
|
});
|
|
|
|
// Load cities
|
|
const cities = await fetchCities();
|
|
if (cities.length > 0) {
|
|
addCityMarkers(cities);
|
|
buildCityList(cities);
|
|
|
|
// Fit map to show all markers
|
|
const bounds = cities.map((c) => [c.lat, c.lon]);
|
|
map.fitBounds(bounds, { padding: [60, 60], maxZoom: 4 });
|
|
|
|
// 启动后台渐进式预加载所有城市的温度
|
|
loadAllCitiesProgressively(cities);
|
|
}
|
|
|
|
startAutoRefresh();
|
|
});
|