Files
go-weatherstation/cmd/ingestd/web/app.js
2026-01-28 08:51:41 +11:00

600 lines
17 KiB
JavaScript

const state = {
range: "24h",
bucket: "5m",
tz: "local",
rangeStart: null,
rangeEnd: null,
singleChartId: null,
charts: {},
timer: null,
};
const colors = {
obs: "#7bdff2",
forecast: "#f4b942",
gust: "#ff7d6b",
humidity: "#7ee081",
uvi: "#f4d35e",
light: "#b8f2e6",
precip: "#4ea8de",
};
function formatNumber(value, digits) {
if (value === null || value === undefined) {
return "--";
}
return Number(value).toFixed(digits);
}
function formatDateTime(value) {
if (!value) return "--";
const dt = value instanceof Date ? value : new Date(value);
if (Number.isNaN(dt.getTime())) return "--";
const opts = { dateStyle: "medium", timeStyle: "short" };
if (state.tz === "utc") {
return new Intl.DateTimeFormat(undefined, { ...opts, timeZone: "UTC" }).format(dt);
}
return new Intl.DateTimeFormat(undefined, opts).format(dt);
}
function formatTick(value) {
const dt = new Date(value);
if (Number.isNaN(dt.getTime())) return "";
const opts = { month: "short", day: "numeric", hour: "2-digit", minute: "2-digit" };
if (state.tz === "utc") {
return new Intl.DateTimeFormat(undefined, { ...opts, timeZone: "UTC" }).format(dt);
}
return new Intl.DateTimeFormat(undefined, opts).format(dt);
}
function series(points, key) {
return points.map((p) => {
const t = new Date(p.ts).getTime();
return {
x: Number.isNaN(t) ? null : t,
y: p[key] === undefined ? null : p[key],
};
});
}
function filterRange(points, start, end) {
if (!start || !end) return points;
const min = start.getTime();
const max = end.getTime();
return points.filter((p) => {
if (!p.ts) return false;
const t = new Date(p.ts).getTime();
return !Number.isNaN(t) && t >= min && t <= max;
});
}
function safeDate(value) {
if (!value) return null;
const dt = value instanceof Date ? value : new Date(value);
return Number.isNaN(dt.getTime()) ? null : dt;
}
function startOfDay(date, tz) {
if (tz === "utc") {
return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate()));
}
return new Date(date.getFullYear(), date.getMonth(), date.getDate());
}
function startOfWeekSunday(date, tz) {
const day = tz === "utc" ? date.getUTCDay() : date.getDay();
const base = startOfDay(date, tz);
const diff = day;
return new Date(base.getTime() - diff * 24 * 60 * 60 * 1000);
}
function computeRange(range, tz) {
const now = new Date();
let start = null;
let end = null;
let axisStart = null;
let axisEnd = null;
switch (range) {
case "6h": {
end = now;
start = new Date(now.getTime() - 6 * 60 * 60 * 1000);
axisStart = start;
axisEnd = end;
break;
}
case "24h": {
start = startOfDay(now, tz);
end = new Date(start.getTime() + 24 * 60 * 60 * 1000);
axisStart = start;
axisEnd = end;
break;
}
case "24h-last": {
end = now;
start = new Date(now.getTime() - 24 * 60 * 60 * 1000);
axisStart = start;
axisEnd = end;
break;
}
case "72h": {
end = startOfDay(now, tz);
start = new Date(end.getTime() - 72 * 60 * 60 * 1000);
axisStart = start;
axisEnd = end;
break;
}
case "7d": {
start = startOfWeekSunday(now, tz);
end = new Date(start.getTime() + 7 * 24 * 60 * 60 * 1000);
axisStart = start;
axisEnd = end;
break;
}
default: {
end = now;
start = new Date(now.getTime() - 24 * 60 * 60 * 1000);
axisStart = start;
axisEnd = end;
}
}
return { start, end, axisStart, axisEnd };
}
function readStateFromURL() {
const url = new URL(window.location.href);
const range = url.searchParams.get("range");
const tz = url.searchParams.get("tz");
if (range) {
state.range = range;
}
if (tz === "utc" || tz === "local") {
state.tz = tz;
}
state.bucket = state.range === "6h" ? "1m" : "5m";
const chartParam = url.searchParams.get("chart");
const chartMatch = url.pathname.match(/^\/chart\/([^/]+)/);
if (chartMatch && chartMatch[1]) {
state.singleChartId = chartMatch[1];
} else if (chartParam) {
state.singleChartId = chartParam;
}
}
function syncControls() {
const rangeButtons = document.querySelectorAll(".btn[data-range]");
rangeButtons.forEach((btn) => {
btn.classList.toggle("active", btn.dataset.range === state.range);
});
const tzButtons = document.querySelectorAll(".btn[data-tz]");
tzButtons.forEach((btn) => {
btn.classList.toggle("active", btn.dataset.tz === state.tz);
});
}
function updateSingleChartMode() {
const cards = document.querySelectorAll(".chart-card");
if (!state.singleChartId) {
document.body.classList.remove("single-chart");
cards.forEach((card) => card.classList.remove("active"));
return;
}
document.body.classList.add("single-chart");
cards.forEach((card) => {
const id = card.dataset.chart;
card.classList.toggle("active", id === state.singleChartId);
});
}
function buildChartURL(chartId) {
const url = new URL(window.location.origin + "/chart/" + chartId);
url.searchParams.set("range", state.range);
url.searchParams.set("tz", state.tz);
return url.toString();
}
function setupShareLinks() {
const buttons = document.querySelectorAll(".chart-link");
buttons.forEach((btn) => {
btn.addEventListener("click", async () => {
const chartId = btn.dataset.chart;
if (!chartId) return;
const url = buildChartURL(chartId);
try {
await navigator.clipboard.writeText(url);
btn.textContent = "Copied";
setTimeout(() => {
btn.textContent = "Share";
}, 1200);
} catch (err) {
window.prompt("Copy chart URL:", url);
}
});
});
}
function minMax(values) {
let min = null;
let max = null;
for (const v of values) {
if (v === null || v === undefined) continue;
if (min === null || v < min) min = v;
if (max === null || v > max) max = v;
}
return { min, max };
}
function sum(values) {
let total = 0;
let seen = false;
for (const v of values) {
if (v === null || v === undefined) continue;
total += v;
seen = true;
}
return seen ? total : null;
}
function updateText(id, text) {
const el = document.getElementById(id);
if (el) el.textContent = text;
}
function upsertChart(id, config) {
const ctx = document.getElementById(id);
if (!ctx) return;
if (state.charts[id]) {
state.charts[id].data = config.data;
state.charts[id].options = config.options;
state.charts[id].update();
return;
}
state.charts[id] = new Chart(ctx, config);
}
function baseOptions(range) {
return {
responsive: true,
maintainAspectRatio: false,
interaction: { mode: "index", intersect: false },
plugins: {
legend: { labels: { color: "#d6f0f0" } },
tooltip: {
mode: "index",
intersect: false,
callbacks: {
title: (items) => {
if (!items.length) return "";
return formatDateTime(new Date(items[0].parsed.x));
},
},
},
},
scales: {
x: {
type: "time",
time: { unit: "hour" },
ticks: {
color: "#a4c4c4",
maxTicksLimit: 6,
callback: (value) => formatTick(value),
},
min: range && range.axisStart ? range.axisStart.getTime() : undefined,
max: range && range.axisEnd ? range.axisEnd.getTime() : undefined,
grid: { color: "rgba(123, 223, 242, 0.08)" },
},
y: {
ticks: { color: "#a4c4c4" },
grid: { color: "rgba(123, 223, 242, 0.08)" },
},
},
elements: {
line: { tension: 0.2, borderWidth: 2 },
point: { radius: 0, hitRadius: 8 },
},
spanGaps: true,
};
}
function renderDashboard(data) {
const latest = data.latest;
const tzLabel = state.tz === "utc" ? "UTC" : "Local";
updateText("site-meta", `${data.site} | model ${data.model} | ${tzLabel}`);
updateText("last-updated", `updated ${formatDateTime(data.generated_at)}`);
const forecastMeta = data.forecast && data.forecast.points && data.forecast.points.length
? `forecast retrieved ${formatDateTime(data.forecast.retrieved_at)}`
: "forecast not available";
updateText("forecast-meta", forecastMeta);
if (latest) {
updateText("live-temp", `${formatNumber(latest.temp_c, 2)} C`);
updateText("live-rh", `${formatNumber(latest.rh, 0)} %`);
updateText("live-wind", `${formatNumber(latest.wind_m_s, 2)}`);
updateText("live-gust", `${formatNumber(latest.wind_gust_m_s, 2)}`);
updateText("live-wdir", `${formatNumber(latest.wind_dir_deg, 0)}`);
updateText("live-uvi", `${formatNumber(latest.uvi, 2)}`);
updateText("live-lux", `${formatNumber(latest.light_lux, 0)}`);
updateText("live-battery", `${formatNumber(latest.battery_mv, 0)}`);
updateText("live-supercap", `${formatNumber(latest.supercap_v, 2)}`);
} else {
updateText("live-temp", "--");
updateText("live-rh", "--");
updateText("live-wind", "--");
updateText("live-gust", "--");
updateText("live-wdir", "--");
updateText("live-uvi", "--");
updateText("live-lux", "--");
updateText("live-battery", "--");
updateText("live-supercap", "--");
}
const obs = data.observations || [];
const forecastAll = (data.forecast && data.forecast.points) || [];
const rangeStart = safeDate(data.range_start) || state.rangeStart;
const rangeEnd = safeDate(data.range_end) || state.rangeEnd;
const range = { axisStart: rangeStart, axisEnd: rangeEnd };
const obsFiltered = filterRange(obs, rangeStart, rangeEnd);
const forecast = filterRange(forecastAll, rangeStart, rangeEnd);
const obsTemps = obsFiltered.map((p) => p.temp_c);
const obsWinds = obsFiltered.map((p) => p.wind_m_s);
const obsGusts = obsFiltered.map((p) => p.wind_gust_m_s);
const obsRH = obsFiltered.map((p) => p.rh);
const obsUvi = obsFiltered.map((p) => p.uvi);
const obsLux = obsFiltered.map((p) => p.light_lux);
const fcTemps = forecast.map((p) => p.temp_c);
const fcWinds = forecast.map((p) => p.wind_m_s);
const fcGusts = forecast.map((p) => p.wind_gust_m_s);
const fcRH = forecast.map((p) => p.rh);
const fcPrecip = forecast.map((p) => p.precip_mm);
const obsTempSummary = minMax(obsTemps);
const obsWindSummary = minMax(obsWinds);
const obsUviSummary = minMax(obsUvi);
const obsLuxSummary = minMax(obsLux);
const forecastTempSummary = minMax(fcTemps);
const forecastPrecipTotal = sum(fcPrecip);
const obsParts = [];
if (obsTempSummary.min !== null) {
obsParts.push(`temp_c ${obsTempSummary.min.toFixed(1)} to ${obsTempSummary.max.toFixed(1)}`);
}
if (obsWindSummary.max !== null) {
obsParts.push(`wind_max ${obsWindSummary.max.toFixed(1)} m/s`);
}
if (obsUviSummary.max !== null) {
obsParts.push(`uvi_max ${obsUviSummary.max.toFixed(1)}`);
}
if (obsLuxSummary.max !== null) {
obsParts.push(`lux_max ${obsLuxSummary.max.toFixed(0)}`);
}
updateText("obs-summary", obsParts.length ? obsParts.join(" | ") : "--");
const forecastParts = [];
if (forecastTempSummary.min !== null) {
forecastParts.push(`temp_c ${forecastTempSummary.min.toFixed(1)} to ${forecastTempSummary.max.toFixed(1)}`);
}
if (forecastPrecipTotal !== null) {
forecastParts.push(`precip_total ${forecastPrecipTotal.toFixed(1)} mm`);
}
updateText("forecast-summary", forecastParts.length ? forecastParts.join(" | ") : "--");
updateText("commentary", buildCommentary(latest, forecastAll));
const tempChart = {
type: "line",
data: {
datasets: [
{ label: "obs temp C", data: series(obsFiltered, "temp_c"), borderColor: colors.obs },
{ label: "forecast temp C", data: series(forecast, "temp_c"), borderColor: colors.forecast },
],
},
options: baseOptions(range),
};
upsertChart("chart-temp", tempChart);
const windChart = {
type: "line",
data: {
datasets: [
{ label: "obs wind m/s", data: series(obsFiltered, "wind_m_s"), borderColor: colors.obs },
{ label: "obs gust m/s", data: series(obsFiltered, "wind_gust_m_s"), borderColor: colors.gust },
{ label: "forecast wind m/s", data: series(forecast, "wind_m_s"), borderColor: colors.forecast },
{ label: "forecast gust m/s", data: series(forecast, "wind_gust_m_s"), borderColor: "#f7d79f" },
],
},
options: baseOptions(range),
};
upsertChart("chart-wind", windChart);
const rhChart = {
type: "line",
data: {
datasets: [
{ label: "obs humidity %", data: series(obsFiltered, "rh"), borderColor: colors.humidity },
{ label: "forecast rh %", data: series(forecast, "rh"), borderColor: colors.forecast },
],
},
options: baseOptions(range),
};
upsertChart("chart-rh", rhChart);
const lightOptions = baseOptions(range);
lightOptions.scales.y1 = {
position: "right",
ticks: { color: "#a4c4c4" },
grid: { drawOnChartArea: false },
};
const lightChart = {
type: "line",
data: {
datasets: [
{ label: "uvi", data: series(obsFiltered, "uvi"), borderColor: colors.uvi, yAxisID: "y" },
{ label: "light lux", data: series(obsFiltered, "light_lux"), borderColor: colors.light, yAxisID: "y1" },
],
},
options: lightOptions,
};
upsertChart("chart-light", lightChart);
const powerOptions = baseOptions(range);
powerOptions.scales.y1 = {
position: "right",
ticks: { color: "#a4c4c4" },
grid: { drawOnChartArea: false },
};
const powerChart = {
type: "line",
data: {
datasets: [
{ label: "battery mV", data: series(obsFiltered, "battery_mv"), borderColor: colors.obs, yAxisID: "y" },
{ label: "supercap V", data: series(obsFiltered, "supercap_v"), borderColor: colors.forecast, yAxisID: "y1" },
],
},
options: powerOptions,
};
upsertChart("chart-power", powerChart);
const precipChart = {
type: "bar",
data: {
datasets: [
{ label: "forecast precip mm", data: series(forecast, "precip_mm"), backgroundColor: colors.precip },
],
},
options: baseOptions(range),
};
upsertChart("chart-precip", precipChart);
updateSingleChartMode();
}
function buildCommentary(latest, forecast) {
if (!latest || !forecast || !forecast.length) {
return "Waiting for forecast data...";
}
const obsTs = new Date(latest.ts);
if (Number.isNaN(obsTs.getTime())) {
return "No valid observation timestamp yet.";
}
let nearest = null;
let bestDiff = null;
for (const p of forecast) {
if (!p.ts) continue;
const fcTs = new Date(p.ts);
if (Number.isNaN(fcTs.getTime())) continue;
const diff = Math.abs(obsTs - fcTs);
if (bestDiff === null || diff < bestDiff) {
bestDiff = diff;
nearest = p;
}
}
if (!nearest || bestDiff > 2 * 60 * 60 * 1000) {
return "No nearby forecast point to compare yet.";
}
const parts = [];
if (latest.temp_c !== null && nearest.temp_c !== null) {
const delta = latest.temp_c - nearest.temp_c;
parts.push(`temp ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} C`);
}
if (latest.wind_m_s !== null && nearest.wind_m_s !== null) {
const delta = latest.wind_m_s - nearest.wind_m_s;
parts.push(`wind ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} m/s`);
}
if (latest.wind_gust_m_s !== null && nearest.wind_gust_m_s !== null) {
const delta = latest.wind_gust_m_s - nearest.wind_gust_m_s;
parts.push(`gust ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} m/s`);
}
if (latest.rh !== null && nearest.rh !== null) {
const delta = latest.rh - nearest.rh;
parts.push(`rh ${delta >= 0 ? "+" : ""}${delta.toFixed(0)} %`);
}
if (!parts.length) {
return "Not enough data to compute deviation yet.";
}
return `Now vs forecast: ${parts.join(", ")}`;
}
async function loadAndRender() {
const range = computeRange(state.range, state.tz);
state.rangeStart = range.start;
state.rangeEnd = range.end;
const params = new URLSearchParams({
range: state.range,
bucket: state.bucket,
start: range.start.toISOString(),
end: range.end.toISOString(),
});
try {
const resp = await fetch(`/api/dashboard?${params.toString()}`, { cache: "no-store" });
if (!resp.ok) {
updateText("commentary", `Dashboard error ${resp.status}`);
return;
}
const data = await resp.json();
renderDashboard(data);
} catch (err) {
updateText("commentary", "Dashboard fetch failed.");
}
}
function setupControls() {
const buttons = document.querySelectorAll(".btn[data-range]");
buttons.forEach((btn) => {
btn.addEventListener("click", () => {
buttons.forEach((b) => b.classList.remove("active"));
btn.classList.add("active");
state.range = btn.dataset.range;
state.bucket = state.range === "6h" ? "1m" : "5m";
updateURLParams();
loadAndRender();
});
});
const tzButtons = document.querySelectorAll(".btn[data-tz]");
tzButtons.forEach((btn) => {
btn.addEventListener("click", () => {
tzButtons.forEach((b) => b.classList.remove("active"));
btn.classList.add("active");
state.tz = btn.dataset.tz;
updateURLParams();
loadAndRender();
});
});
}
function updateURLParams() {
const url = new URL(window.location.href);
url.searchParams.set("range", state.range);
url.searchParams.set("tz", state.tz);
history.replaceState({}, "", url);
}
document.addEventListener("DOMContentLoaded", () => {
readStateFromURL();
syncControls();
setupControls();
setupShareLinks();
updateSingleChartMode();
loadAndRender();
if (state.timer) clearInterval(state.timer);
state.timer = setInterval(loadAndRender, 60 * 1000);
});