first commit

index.js

@@ -0,0 +1,143 @@
+const mqtt = require('mqtt');
+const { MatrixClient, SimpleFsStorageProvider, AutojoinRoomsMixin } = require('matrix-bot-sdk');
+const config = require('./config.json');
+
+// Matrix client
+const storage = new SimpleFsStorageProvider("matrix-storage.json");
+const matrix = new MatrixClient(config.matrix.homeserverUrl, config.matrix.accessToken, storage);
+AutojoinRoomsMixin.setupOnClient(matrix);
+matrix.start().then(() => console.log("Matrix bot started"));
+
+function formatMessageCQ(data) {
+  const {
+    callsign,
+    msg,
+    ccode,
+    country,
+    mode,
+    freq,
+    db,
+    dt,
+    locator
+  } = data;
+
+  // Country flag emoji
+  const emojiFlag = countryCodeToFlagEmoji(ccode);
+
+  // Convert frequency Hz to MHz with 3 decimal digits
+  const freqMHz = (freq / 1_000_000).toFixed(3);
+
+  // RSSI visual bars
+  const rssiBars = snrToBars(db);
+
+  // Google Maps locator search
+  const mapLink = `https://k7fry.com/grid/?qth=${locator}`;
+
+  return `📡 ${callsign} ${emojiFlag} 📍<a href="${mapLink}">${locator}</a>
+📶 ${db} dB | ${dt} s | ${rssiBars}
+🔊 ${freqMHz}MHz ${mode} `;
+}
+
+function formatMessageWX(data) {
+  const {
+    temperature_F,
+    humidity,
+    rain_mm,
+    wind_dir_deg,
+    wind_avg_m_s,
+    wind_max_m_s,
+    light_lux,
+    uv,
+    mic,
+    mode,
+    timestamp
+  } = data;
+
+  const emoji = {
+    temp: "🌡️",
+    humidity: "💧",
+    rain: "🌧️",
+    wind: "🍃",
+    light: "💡",
+    uv: "☀️",
+    mic: "🎙️",
+    time: "🕒",
+    mode: "⚙️"
+  };
+
+  const dirEmoji = getWindDirectionEmoji(wind_dir_deg);
+  const readableTime = new Date(timestamp).toLocaleString();
+
+  return `
+${emoji.temp} Temperature: ${temperature_F.toFixed(1)} °C
+${emoji.humidity} Humidity: ${humidity}% (may be out of range!)
+${emoji.rain} Rainfall: ${rain_mm} mm
+${emoji.wind} Wind: ${wind_avg_m_s} m/s avg, ${wind_max_m_s} m/s max ${dirEmoji} (${wind_dir_deg}°)
+${emoji.light} Light: ${light_lux} lux
+${emoji.uv} UV Index: ${uv}
+${emoji.time} Time: ${readableTime}
+`.trim();
+}
+
+
+// Helper: SNR (dB) to emoji "bar chart"
+function snrToBars(db) {
+  const snr = Math.max(Math.min(db, 0), -30); // clamp -30 to 0
+  const levels = 5;
+  const filled = Math.round(((snr + 30) / 30) * levels);
+  return '▓'.repeat(filled) + '░'.repeat(levels - filled);
+}
+
+// Helper: ISO country code (e.g. "CA") → 🇨🇦 emoji
+function countryCodeToFlagEmoji(cc) {
+  if (!cc) return '';
+  return cc.toUpperCase().replace(/./g, c =>
+    String.fromCodePoint(0x1f1e6 - 65 + c.charCodeAt(0))
+  );
+}
+// MQTT client
+const mqttClient = mqtt.connect(config.mqtt.url, {
+  username: config.mqtt.username,
+  password: config.mqtt.password,
+  clientId: 'mqtt-matrix-' + Math.random().toString(16).slice(2, 10),
+  clean: true,
+  connectTimeout: 4000,
+  reconnectPeriod: 2000,
+});
+
+mqttClient.on('connect', () => {
+  console.log('MQTT connected');
+  mqttClient.subscribe(config.mqtt.topic, { qos: 0 }, err => {
+    if (err) console.error('Subscribe error', err);
+  });
+});
+
+mqttClient.on('message', async (topic, payload) => {
+  const data = JSON.parse(payload.toString());
+  console.log(`MQTT message on ${topic}: ${data?.msg}`);
+  // Simple filter—customize as needed
+  if (data?.model?.includes('CQ')) {
+    await matrix.sendMessage(config.matrix.roomId, {
+      msgtype: "m.text",
+      format: "org.matrix.custom.html",
+      formatted_body: formatMessageCQ(data),
+      body: formatMessageCQ(data),
+    });
+  } else if (data?.msg?.includes('Sharp-SPC775')) {
+    const msg = `🌡️${data.temperature_C} | 💧${data.humidity}`;
+    await matrix.sendMessage(config.matrix.roomId, {
+      msgtype: "m.text",
+      format: "org.matrix.custom.html",
+      formatted_body: msg,
+      body: msg,
+    });
+  }
+  else if (data?.msg?.includes('Cotech-367959')) {
+    await matrix.sendMessage(config.matrix.roomId, {
+      msgtype: "m.text",
+      format: "org.matrix.custom.html",
+      formatted_body: formatMessageWX(data),
+      body: formatMessageWX(data),
+    });
+  }
+});