353 lines
10 KiB
JavaScript
353 lines
10 KiB
JavaScript
const state = {
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range: "24h",
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bucket: "5m",
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charts: {},
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timer: null,
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};
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const colors = {
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obs: "#7bdff2",
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forecast: "#f4b942",
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gust: "#ff7d6b",
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humidity: "#7ee081",
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uvi: "#f4d35e",
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light: "#b8f2e6",
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precip: "#4ea8de",
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};
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function formatNumber(value, digits) {
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if (value === null || value === undefined) {
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return "--";
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}
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return Number(value).toFixed(digits);
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}
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function formatTime(iso) {
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if (!iso) return "--";
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const dt = new Date(iso);
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if (Number.isNaN(dt.getTime())) return "--";
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return dt.toLocaleString();
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}
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function series(points, key) {
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return points.map((p) => ({
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x: p.ts,
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y: p[key] === undefined ? null : p[key],
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}));
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}
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function minMax(values) {
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let min = null;
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let max = null;
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for (const v of values) {
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if (v === null || v === undefined) continue;
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if (min === null || v < min) min = v;
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if (max === null || v > max) max = v;
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}
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return { min, max };
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}
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function sum(values) {
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let total = 0;
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let seen = false;
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for (const v of values) {
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if (v === null || v === undefined) continue;
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total += v;
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seen = true;
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}
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return seen ? total : null;
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}
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function updateText(id, text) {
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const el = document.getElementById(id);
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if (el) el.textContent = text;
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}
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function upsertChart(id, config) {
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const ctx = document.getElementById(id);
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if (!ctx) return;
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if (state.charts[id]) {
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state.charts[id].data = config.data;
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state.charts[id].options = config.options;
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state.charts[id].update();
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return;
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}
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state.charts[id] = new Chart(ctx, config);
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}
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function baseOptions() {
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return {
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responsive: true,
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maintainAspectRatio: false,
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interaction: { mode: "index", intersect: false },
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plugins: {
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legend: { labels: { color: "#d6f0f0" } },
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tooltip: { mode: "index", intersect: false },
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},
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scales: {
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x: {
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type: "time",
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time: { unit: "hour" },
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ticks: { color: "#a4c4c4", maxTicksLimit: 6 },
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grid: { color: "rgba(123, 223, 242, 0.08)" },
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},
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y: {
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ticks: { color: "#a4c4c4" },
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grid: { color: "rgba(123, 223, 242, 0.08)" },
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},
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},
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elements: {
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line: { tension: 0.2, borderWidth: 2 },
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point: { radius: 0, hitRadius: 8 },
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},
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spanGaps: true,
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};
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}
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function renderDashboard(data) {
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const latest = data.latest;
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updateText("site-meta", `${data.site} | model ${data.model}`);
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updateText("last-updated", `updated ${formatTime(data.generated_at)}`);
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const forecastMeta = data.forecast && data.forecast.points && data.forecast.points.length
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? `forecast retrieved ${formatTime(data.forecast.retrieved_at)}`
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: "forecast not available";
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updateText("forecast-meta", forecastMeta);
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if (latest) {
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updateText("live-temp", `${formatNumber(latest.temp_c, 2)} C`);
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updateText("live-rh", `${formatNumber(latest.rh, 0)} %`);
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updateText("live-wind", `${formatNumber(latest.wind_m_s, 2)}`);
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updateText("live-gust", `${formatNumber(latest.wind_gust_m_s, 2)}`);
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updateText("live-wdir", `${formatNumber(latest.wind_dir_deg, 0)}`);
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updateText("live-uvi", `${formatNumber(latest.uvi, 2)}`);
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updateText("live-lux", `${formatNumber(latest.light_lux, 0)}`);
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} else {
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updateText("live-temp", "--");
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updateText("live-rh", "--");
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updateText("live-wind", "--");
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updateText("live-gust", "--");
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updateText("live-wdir", "--");
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updateText("live-uvi", "--");
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updateText("live-lux", "--");
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}
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const forecastUrl = document.getElementById("forecast-url");
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if (forecastUrl) {
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if (data.open_meteo_url) {
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forecastUrl.href = data.open_meteo_url;
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forecastUrl.textContent = data.open_meteo_url;
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} else {
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forecastUrl.textContent = "--";
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}
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}
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const obs = data.observations || [];
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const forecast = (data.forecast && data.forecast.points) || [];
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const obsTemps = obs.map((p) => p.temp_c);
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const obsWinds = obs.map((p) => p.wind_m_s);
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const obsGusts = obs.map((p) => p.wind_gust_m_s);
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const obsRH = obs.map((p) => p.rh);
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const obsUvi = obs.map((p) => p.uvi);
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const obsLux = obs.map((p) => p.light_lux);
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const fcTemps = forecast.map((p) => p.temp_c);
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const fcWinds = forecast.map((p) => p.wind_m_s);
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const fcGusts = forecast.map((p) => p.wind_gust_m_s);
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const fcRH = forecast.map((p) => p.rh);
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const fcPrecip = forecast.map((p) => p.precip_mm);
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const obsTempSummary = minMax(obsTemps);
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const obsWindSummary = minMax(obsWinds);
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const obsUviSummary = minMax(obsUvi);
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const obsLuxSummary = minMax(obsLux);
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const forecastTempSummary = minMax(fcTemps);
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const forecastPrecipTotal = sum(fcPrecip);
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const obsParts = [];
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if (obsTempSummary.min !== null) {
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obsParts.push(`temp_c ${obsTempSummary.min.toFixed(1)} to ${obsTempSummary.max.toFixed(1)}`);
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}
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if (obsWindSummary.max !== null) {
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obsParts.push(`wind_max ${obsWindSummary.max.toFixed(1)} m/s`);
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}
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if (obsUviSummary.max !== null) {
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obsParts.push(`uvi_max ${obsUviSummary.max.toFixed(1)}`);
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}
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if (obsLuxSummary.max !== null) {
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obsParts.push(`lux_max ${obsLuxSummary.max.toFixed(0)}`);
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}
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updateText("obs-summary", obsParts.length ? obsParts.join(" | ") : "--");
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const forecastParts = [];
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if (forecastTempSummary.min !== null) {
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forecastParts.push(`temp_c ${forecastTempSummary.min.toFixed(1)} to ${forecastTempSummary.max.toFixed(1)}`);
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}
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if (forecastPrecipTotal !== null) {
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forecastParts.push(`precip_total ${forecastPrecipTotal.toFixed(1)} mm`);
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}
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updateText("forecast-summary", forecastParts.length ? forecastParts.join(" | ") : "--");
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updateText("commentary", buildCommentary(latest, forecast));
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const tempChart = {
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type: "line",
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data: {
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datasets: [
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{ label: "obs temp C", data: series(obs, "temp_c"), borderColor: colors.obs },
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{ label: "forecast temp C", data: series(forecast, "temp_c"), borderColor: colors.forecast },
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],
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},
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options: baseOptions(),
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};
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upsertChart("chart-temp", tempChart);
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const windChart = {
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type: "line",
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data: {
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datasets: [
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{ label: "obs wind m/s", data: series(obs, "wind_m_s"), borderColor: colors.obs },
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{ label: "obs gust m/s", data: series(obs, "wind_gust_m_s"), borderColor: colors.gust },
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{ label: "forecast wind m/s", data: series(forecast, "wind_m_s"), borderColor: colors.forecast },
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{ label: "forecast gust m/s", data: series(forecast, "wind_gust_m_s"), borderColor: "#f7d79f" },
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],
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},
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options: baseOptions(),
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};
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upsertChart("chart-wind", windChart);
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const rhChart = {
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type: "line",
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data: {
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datasets: [
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{ label: "obs humidity %", data: series(obs, "rh"), borderColor: colors.humidity },
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{ label: "forecast rh %", data: series(forecast, "rh"), borderColor: colors.forecast },
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],
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},
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options: baseOptions(),
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};
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upsertChart("chart-rh", rhChart);
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const lightOptions = baseOptions();
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lightOptions.scales.y1 = {
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position: "right",
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ticks: { color: "#a4c4c4" },
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grid: { drawOnChartArea: false },
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};
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const lightChart = {
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type: "line",
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data: {
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datasets: [
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{ label: "uvi", data: series(obs, "uvi"), borderColor: colors.uvi, yAxisID: "y" },
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{ label: "light lux", data: series(obs, "light_lux"), borderColor: colors.light, yAxisID: "y1" },
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],
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},
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options: lightOptions,
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};
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upsertChart("chart-light", lightChart);
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const precipChart = {
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type: "bar",
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data: {
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datasets: [
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{ label: "forecast precip mm", data: series(forecast, "precip_mm"), backgroundColor: colors.precip },
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],
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},
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options: baseOptions(),
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};
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upsertChart("chart-precip", precipChart);
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}
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function buildCommentary(latest, forecast) {
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if (!latest || !forecast || !forecast.length) {
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return "Waiting for forecast data...";
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}
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const obsTs = new Date(latest.ts);
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if (Number.isNaN(obsTs.getTime())) {
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return "No valid observation timestamp yet.";
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}
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let nearest = null;
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let bestDiff = null;
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for (const p of forecast) {
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if (!p.ts) continue;
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const fcTs = new Date(p.ts);
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if (Number.isNaN(fcTs.getTime())) continue;
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const diff = Math.abs(obsTs - fcTs);
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if (bestDiff === null || diff < bestDiff) {
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bestDiff = diff;
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nearest = p;
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}
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}
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if (!nearest || bestDiff > 2 * 60 * 60 * 1000) {
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return "No nearby forecast point to compare yet.";
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}
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const parts = [];
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if (latest.temp_c !== null && nearest.temp_c !== null) {
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const delta = latest.temp_c - nearest.temp_c;
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parts.push(`temp ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} C`);
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}
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if (latest.wind_m_s !== null && nearest.wind_m_s !== null) {
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const delta = latest.wind_m_s - nearest.wind_m_s;
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parts.push(`wind ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} m/s`);
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}
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if (latest.wind_gust_m_s !== null && nearest.wind_gust_m_s !== null) {
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const delta = latest.wind_gust_m_s - nearest.wind_gust_m_s;
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parts.push(`gust ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} m/s`);
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}
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if (latest.rh !== null && nearest.rh !== null) {
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const delta = latest.rh - nearest.rh;
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parts.push(`rh ${delta >= 0 ? "+" : ""}${delta.toFixed(0)} %`);
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}
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if (!parts.length) {
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return "Not enough data to compute deviation yet.";
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}
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return `Now vs forecast: ${parts.join(", ")}`;
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}
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async function loadAndRender() {
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const params = new URLSearchParams({
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range: state.range,
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bucket: state.bucket,
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});
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try {
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const resp = await fetch(`/api/dashboard?${params.toString()}`, { cache: "no-store" });
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if (!resp.ok) {
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updateText("commentary", `Dashboard error ${resp.status}`);
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return;
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}
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const data = await resp.json();
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renderDashboard(data);
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} catch (err) {
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updateText("commentary", "Dashboard fetch failed.");
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}
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}
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function setupControls() {
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const buttons = document.querySelectorAll(".btn[data-range]");
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buttons.forEach((btn) => {
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btn.addEventListener("click", () => {
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buttons.forEach((b) => b.classList.remove("active"));
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btn.classList.add("active");
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state.range = btn.dataset.range;
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state.bucket = state.range === "6h" ? "1m" : "5m";
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loadAndRender();
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});
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});
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}
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document.addEventListener("DOMContentLoaded", () => {
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setupControls();
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loadAndRender();
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if (state.timer) clearInterval(state.timer);
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state.timer = setInterval(loadAndRender, 60 * 1000);
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});
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