feat: initial commit at project root

2026-05-29 01:06:47 +03:00
commit 87ec54bbd7
22 changed files with 1737 additions and 0 deletions
--- a/internal/db/db.js
+++ b/internal/db/db.js
@@ -0,0 +1,119 @@
+import mysql from 'mysql2/promise';
+import { config } from '../config/config.js';
+import { logger } from '../logger/logger.js';
+
+let pool = null;
+
+/**
+ * Initializes the MySQL database pool and ensures schema exists.
+ */
+export async function initializeDatabase() {
+  if (!config.dbUsername) {
+    logger.warn('db_disabled', { reason: 'No DB_USERNAME configured, database logging is disabled' });
+    return;
+  }
+
+  try {
+    pool = mysql.createPool({
+      host: config.dbHost,
+      port: config.dbPort,
+      database: config.dbDatabase,
+      user: config.dbUsername,
+      password: config.dbPassword,
+      waitForConnections: true,
+      connectionLimit: 10,
+      queueLimit: 0
+    });
+
+    // Test connection and auto-create the table if not exists
+    const conn = await pool.getConnection();
+    await conn.query(`
+      CREATE TABLE IF NOT EXISTS \`call_logs\` (
+        \`id\` INT AUTO_INCREMENT PRIMARY KEY,
+        \`session_id\` VARCHAR(36) NOT NULL UNIQUE,
+        \`ride_id\` VARCHAR(255) NOT NULL,
+        \`driver_id\` VARCHAR(255) NOT NULL,
+        \`passenger_id\` VARCHAR(255) NOT NULL,
+        \`driver_ip\` VARCHAR(45) NULL DEFAULT NULL,
+        \`passenger_ip\` VARCHAR(45) NULL DEFAULT NULL,
+        \`driver_conn_ip\` VARCHAR(45) NULL DEFAULT NULL,
+        \`passenger_conn_ip\` VARCHAR(45) NULL DEFAULT NULL,
+        \`status\` VARCHAR(50) NOT NULL DEFAULT 'created',
+        \`initiated_by\` VARCHAR(255) NULL DEFAULT NULL,
+        \`end_reason\` VARCHAR(255) NULL DEFAULT NULL,
+        \`created_at\` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+        \`connected_at\` TIMESTAMP NULL DEFAULT NULL,
+        \`ended_at\` TIMESTAMP NULL DEFAULT NULL,
+        INDEX \`idx_session_id\` (\`session_id\`),
+        INDEX \`idx_ride_id\` (\`ride_id\`)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+    `);
+    conn.release();
+    logger.info('db_initialized', { host: config.dbHost, database: config.dbDatabase });
+  } catch (err) {
+    logger.error('db_initialization_failed', { error: err.message });
+    // Soft fallback: log the failure but do not crash the signaling server
+    pool = null;
+  }
+}
+
+/**
+ * Logs session creation to the database with pre-registered client IPs.
+ */
+export async function logSessionCreated(sessionID, rideID, driverID, passengerID, driverIP = null, passengerIP = null) {
+  if (!pool) return;
+  try {
+    await pool.query(
+      `INSERT INTO call_logs (session_id, ride_id, driver_id, passenger_id, driver_ip, passenger_ip, status, created_at)
+       VALUES (?, ?, ?, ?, ?, ?, 'created', NOW())`,
+      [sessionID, rideID, driverID, passengerID, driverIP, passengerIP]
+    );
+  } catch (err) {
+    logger.error('db_log_session_created_failed', { session_id: sessionID, error: err.message });
+  }
+}
+
+/**
+ * Logs session status transition to active and records the connection IPs.
+ */
+export async function logSessionActive(sessionID, driverConnIP = null, passengerConnIP = null) {
+  if (!pool) return;
+  try {
+    await pool.query(
+      `UPDATE call_logs SET status = 'active', connected_at = NOW(), driver_conn_ip = ?, passenger_conn_ip = ? WHERE session_id = ?`,
+      [driverConnIP, passengerConnIP, sessionID]
+    );
+  } catch (err) {
+    logger.error('db_log_session_active_failed', { session_id: sessionID, error: err.message });
+  }
+}
+
+/**
+ * Logs the initiator (caller) of the call when the first SDP offer is received.
+ */
+export async function logSessionInitiator(sessionID, initiatorID) {
+  if (!pool) return;
+  try {
+    await pool.query(
+      `UPDATE call_logs SET initiated_by = ? WHERE session_id = ? AND initiated_by IS NULL`,
+      [initiatorID, sessionID]
+    );
+  } catch (err) {
+    logger.error('db_log_session_initiator_failed', { session_id: sessionID, initiator_id: initiatorID, error: err.message });
+  }
+}
+
+/**
+ * Logs call termination reason and end time.
+ */
+export async function logSessionEnded(sessionID, endReason) {
+  if (!pool) return;
+  try {
+    await pool.query(
+      `UPDATE call_logs SET status = 'ended', ended_at = NOW(), end_reason = ? WHERE session_id = ?`,
+      [endReason, sessionID]
+    );
+  } catch (err) {
+    logger.error('db_log_session_ended_failed', { session_id: sessionID, error: err.message });
+  }
+}