Files
lambdaiot-web/webroot/app.js
2026-02-07 23:59:44 +01:00

409 lines
13 KiB
JavaScript

const BASE_URL = "http://localhost:8080";
const ACTION_WRITE = "write";
const state = {
token: localStorage.getItem("lambdaiot.token") || "",
devices: [],
sensors: [],
actors: [],
selectedDeviceId: null,
readingsLimit: 50,
deviceRefreshIntervalId: null,
};
const elements = {
authStatus: document.getElementById("authStatus"),
authMessage: document.getElementById("authMessage"),
loginForm: document.getElementById("loginForm"),
authBlock: document.getElementById("authBlock"),
authActions: document.getElementById("authActions"),
logoutButton: document.getElementById("logoutButton"),
deviceList: document.getElementById("deviceList"),
deviceMeta: document.getElementById("deviceMeta"),
sensorList: document.getElementById("sensorList"),
actorList: document.getElementById("actorList"),
sensorNote: document.getElementById("sensorNote"),
actorNote: document.getElementById("actorNote"),
refreshDevices: document.getElementById("refreshDevices"),
};
const templates = {
sensorCard: document.getElementById("sensorCardTemplate"),
actorCard: document.getElementById("actorCardTemplate"),
readingRow: document.getElementById("readingRowTemplate"),
};
function setAuthStatus(message) {
elements.authStatus.textContent = message;
}
function setAuthMessage(message, isError = false) {
elements.authMessage.textContent = message;
elements.authMessage.style.color = isError ? "#b0412e" : "var(--muted)";
}
function setDeviceRefreshInterval(enabled) {
if (state.deviceRefreshIntervalId) {
clearInterval(state.deviceRefreshIntervalId);
state.deviceRefreshIntervalId = null;
}
if (enabled) {
state.deviceRefreshIntervalId = setInterval(loadDevices, 15000);
}
}
function updateAuthUI() {
if (state.token) {
setAuthStatus("Signed in");
setAuthMessage("Token stored locally.");
elements.authBlock.classList.add("is-hidden");
elements.loginForm.classList.add("is-hidden");
elements.authActions.classList.remove("is-hidden");
setDeviceRefreshInterval(false);
} else {
setAuthStatus("Not signed in");
setAuthMessage("Login required for sensors, actors, and readings.");
elements.authBlock.classList.remove("is-hidden");
elements.loginForm.classList.remove("is-hidden");
elements.authActions.classList.add("is-hidden");
setDeviceRefreshInterval(true);
}
}
async function apiFetch(path, options = {}, authRequired = true) {
const headers = new Headers(options.headers || {});
if (authRequired) {
if (!state.token) {
throw new Error("Missing JWT token.");
}
headers.set("Authorization", `Bearer ${state.token}`);
}
if (options.body && !headers.has("Content-Type")) {
headers.set("Content-Type", "application/json");
}
const response = await fetch(`${BASE_URL}${path}`, {
...options,
headers,
});
if (!response.ok) {
const text = await response.text();
throw new Error(text || `Request failed with status ${response.status}`);
}
if (response.status === 204) {
return null;
}
return response.json();
}
async function loadDevices() {
elements.deviceList.innerHTML = "";
try {
const data = await apiFetch("/devices", {}, false);
state.devices = Array.isArray(data) ? data : [];
renderDeviceList();
} catch (error) {
const errorItem = document.createElement("li");
errorItem.className = "device-error";
errorItem.textContent = `Failed to load devices: ${error.message}`;
elements.deviceList.prepend(errorItem);
}
}
async function refreshAll() {
await loadDevices();
if (!state.token || !state.selectedDeviceId) {
return;
}
const selectedDevice = state.devices.find(
(device) => device.id === state.selectedDeviceId
);
if (selectedDevice) {
selectDevice(selectedDevice);
} else {
state.selectedDeviceId = null;
elements.deviceMeta.textContent = "Select a device";
elements.sensorList.innerHTML = "";
elements.actorList.innerHTML = "";
elements.sensorNote.textContent = "No device selected.";
elements.actorNote.textContent = "No device selected.";
}
}
function renderDeviceList() {
elements.deviceList.innerHTML = "";
if (state.devices.length === 0) {
elements.deviceList.innerHTML = "<li>No devices found.</li>";
return;
}
state.devices.forEach((device) => {
const item = document.createElement("li");
const statusLabel =
device.status_id === 2 ? "Pending" : device.status_id === 3 ? "Lost" : "";
const statusClass =
device.status_id === 2 ? "pending" : device.status_id === 3 ? "lost" : "";
const statusMarkup = statusLabel
? `<span class="device-status device-status--${statusClass}">${statusLabel}</span>`
: "";
item.classList.toggle("active", device.id === state.selectedDeviceId);
item.innerHTML = `
<div class="device-header">
<div class="device-name">${device.name}</div>
${statusMarkup}
</div>
<div class="device-location">${device.location || "No location"}</div>
`;
item.addEventListener("click", () => selectDevice(device));
elements.deviceList.appendChild(item);
});
}
function selectDevice(device) {
state.selectedDeviceId = device.id;
renderDeviceList();
elements.deviceMeta.textContent = `${device.name}${device.description || "No description"}`;
loadDeviceDetails(device.id);
}
async function loadDeviceDetails(deviceId) {
elements.sensorList.innerHTML = "";
elements.actorList.innerHTML = "";
elements.sensorNote.textContent = "Loading sensors...";
elements.actorNote.textContent = "Loading actors...";
if (!state.token) {
elements.sensorNote.textContent = "Login required to view sensors.";
elements.actorNote.textContent = "Login required to view actors.";
return;
}
try {
const [sensors, actors] = await Promise.all([
apiFetch("/sensors"),
apiFetch("/actors"),
]);
state.sensors = (sensors || []).filter((sensor) => sensor.device_id === deviceId);
state.actors = (actors || []).filter((actor) => actor.device_id === deviceId);
await renderSensors();
renderActors();
} catch (error) {
elements.sensorNote.textContent = `Failed to load sensors: ${error.message}`;
elements.actorNote.textContent = `Failed to load actors: ${error.message}`;
}
}
async function renderSensors() {
elements.sensorList.innerHTML = "";
if (state.sensors.length === 0) {
elements.sensorNote.textContent = "No sensors for this device.";
return;
}
elements.sensorNote.textContent = `${state.sensors.length} sensor(s)`;
const readingsPromises = state.sensors.map(async (sensor) => {
try {
const readings = await apiFetch(
`/sensor-readings?sensor_id=${sensor.id}&limit=${state.readingsLimit}&page=0`
);
return { sensorId: sensor.id, readings: readings || [] };
} catch (error) {
return { sensorId: sensor.id, readings: [], error: error.message };
}
});
const readingsResults = await Promise.all(readingsPromises);
const readingsMap = new Map(readingsResults.map((entry) => [entry.sensorId, entry]));
state.sensors.forEach((sensor) => {
const card = templates.sensorCard.content.cloneNode(true);
const title = card.querySelector(".card-title");
const subtitle = card.querySelector(".card-subtitle");
const pill = card.querySelector(".pill");
const list = card.querySelector(".readings-list");
title.textContent = sensor.name;
subtitle.textContent = `${sensor.type}${sensor.id}`;
pill.textContent = sensor.data_type_id === 1 ? "bool" : "float";
const readingsEntry = readingsMap.get(sensor.id);
if (!readingsEntry || readingsEntry.readings.length === 0) {
list.textContent = readingsEntry?.error
? `Error: ${readingsEntry.error}`
: "No readings yet.";
} else {
readingsEntry.readings.forEach((reading) => {
const row = templates.readingRow.content.cloneNode(true);
row.querySelector(".reading-value").textContent = reading.value;
row.querySelector(".reading-time").textContent = new Date(
reading.value_at
).toLocaleString();
list.appendChild(row);
});
}
elements.sensorList.appendChild(card);
});
}
function renderActors() {
elements.actorList.innerHTML = "";
if (state.actors.length === 0) {
elements.actorNote.textContent = "No actors for this device.";
return;
}
elements.actorNote.textContent = `${state.actors.length} actor(s)`;
state.actors.forEach((actor) => {
const card = templates.actorCard.content.cloneNode(true);
const cardRoot = card.querySelector(".card");
const title = card.querySelector(".card-title");
const subtitle = card.querySelector(".card-subtitle");
const pill = card.querySelector(".pill");
const body = card.querySelector(".card-body");
if (cardRoot) {
cardRoot.dataset.actorId = actor.id;
}
title.textContent = actor.name;
subtitle.textContent = `${actor.type}${actor.id}`;
pill.textContent = actor.data_type_id === 1 ? "bool" : "float";
const controls = document.createElement("div");
controls.className = "actor-controls";
if (actor.data_type_id === 1) {
const onButton = document.createElement("button");
onButton.textContent = "On";
onButton.addEventListener("click", () => writeActor(actor, 1));
const offButton = document.createElement("button");
offButton.className = "secondary";
offButton.textContent = "Off";
offButton.addEventListener("click", () => writeActor(actor, 0));
controls.appendChild(onButton);
controls.appendChild(offButton);
} else {
const input = document.createElement("input");
input.type = "number";
input.step = "any";
input.placeholder = "Value";
const setButton = document.createElement("button");
setButton.textContent = "Set";
setButton.addEventListener("click", () => {
const value = Number(input.value);
if (Number.isNaN(value)) {
showActorResponse(body, "Enter a numeric value.", true);
return;
}
writeActor(actor, value);
});
controls.appendChild(input);
controls.appendChild(setButton);
}
body.appendChild(controls);
const response = document.createElement("div");
response.className = "actor-response";
body.appendChild(response);
elements.actorList.appendChild(card);
});
}
function showActorResponse(container, message, isError = false) {
if (!container) return;
const response = container.querySelector(".actor-response");
if (!response) return;
response.textContent = message;
response.style.color = isError ? "#b0412e" : "var(--muted)";
}
async function writeActor(actor, value) {
try {
const payload = { action: ACTION_WRITE, value };
await apiFetch(`/actors/${actor.id}/write`, {
method: "POST",
body: JSON.stringify(payload),
});
const card = findActorCard(actor.id);
showActorResponse(card, "Command published.");
} catch (error) {
const card = findActorCard(actor.id);
showActorResponse(card, `Error: ${error.message}`, true);
}
}
function findActorCard(actorId) {
const cards = Array.from(elements.actorList.querySelectorAll(".card"));
return cards.find((card) => card.dataset.actorId === actorId);
}
async function handleLogin(event) {
event.preventDefault();
const username = document.getElementById("username").value.trim();
const password = document.getElementById("password").value.trim();
if (!username || !password) {
setAuthMessage("Enter both username and password.", true);
return;
}
try {
const result = await apiFetch(
"/login",
{
method: "POST",
body: JSON.stringify({ username, password }),
},
false
);
state.token = result.token || "";
localStorage.setItem("lambdaiot.token", state.token);
updateAuthUI();
setAuthMessage("Login successful.");
refreshAll();
if (state.selectedDeviceId) {
loadDeviceDetails(state.selectedDeviceId);
}
} catch (error) {
setAuthMessage(`Login failed: ${error.message}`, true);
}
}
function handleLogout() {
state.token = "";
localStorage.removeItem("lambdaiot.token");
updateAuthUI();
setAuthMessage("Logged out.");
refreshAll();
elements.sensorList.innerHTML = "";
elements.actorList.innerHTML = "";
elements.sensorNote.textContent = "Login required to view sensors.";
elements.actorNote.textContent = "Login required to view actors.";
}
elements.loginForm.addEventListener("submit", handleLogin);
elements.logoutButton.addEventListener("click", handleLogout);
elements.refreshDevices.addEventListener("click", refreshAll);
updateAuthUI();
refreshAll();