From 3b0080858030174a33d918154757b0ded3ec62a9 Mon Sep 17 00:00:00 2001
From: Sneha Debnath <youremail@example.com>
Date: Tue, 9 Dec 2025 23:31:08 +0530
Subject: [PATCH] Add crypto price logging feature and improve exchange
 initialization

---
 .../Php/Exchange/ExchangeManager.php          | 37 +++++++++++--------
 .../Resources/Php/Exchange/PriceLogger.php    | 26 +++++++++++++
 README.md                                     |  6 +++
 3 files changed, 54 insertions(+), 15 deletions(-)
 create mode 100644 Exchange/Resources/Php/Exchange/PriceLogger.php

diff --git a/Exchange/Resources/Php/Exchange/ExchangeManager.php b/Exchange/Resources/Php/Exchange/ExchangeManager.php
index df09781..e28e2b3 100644
--- a/Exchange/Resources/Php/Exchange/ExchangeManager.php
+++ b/Exchange/Resources/Php/Exchange/ExchangeManager.php
@@ -1,15 +1,22 @@
-<?php
-
-namespace Resources\Php\Exchange;
-
-use Resources\Php\Exchange\exchanges\Binance;
-
-class ExchangeManager {
-    private string $selectedExchange = 'binance';
-
-    public function getExchange(string $exchange, string $apiKey, string $apiSecret): Exchange {
-        //TODO: exchange selection
-        return new Binance($apiKey, $apiSecret);
-    }
-}
-?>
\ No newline at end of file
+<?php
+
+namespace Resources\Php\Exchange;
+
+use Resources\Php\Exchange\exchanges\Binance;
+use Resources\Php\Exchange\PriceLogger;
+
+class ExchangeManager {
+
+    private string $selectedExchange = 'binance';
+
+    public function getExchange(string $exchange, string $apiKey, string $apiSecret): Exchange
+    {
+        // Log when exchange is initialized
+        $logger = new PriceLogger();
+        $logger->logPrice($exchange, 0.0);
+
+        // TODO: exchange selection
+        return new Binance($apiKey, $apiSecret);
+    }
+}
+?>
diff --git a/Exchange/Resources/Php/Exchange/PriceLogger.php b/Exchange/Resources/Php/Exchange/PriceLogger.php
new file mode 100644
index 0000000..0d51b17
--- /dev/null
+++ b/Exchange/Resources/Php/Exchange/PriceLogger.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Resources\Php\Exchange;
+
+class PriceLogger
+{
+    private string $logFile;
+
+    public function __construct()
+    {
+        $this->logFile = __DIR__ . "/price_history.log";
+    }
+
+    public function logPrice(string $symbol, float $price): void
+    {
+        $timestamp = date("Y-m-d H:i:s");
+
+        $entry = "[" . $timestamp . "] " . $symbol . " => " . $price . PHP_EOL;
+
+        try {
+            file_put_contents($this->logFile, $entry, FILE_APPEND);
+        } catch (\Exception $e) {
+            error_log("Price Logger Error: " . $e->getMessage());
+        }
+    }
+}
diff --git a/README.md b/README.md
index c12c1d5..c777ea7 100644
--- a/README.md
+++ b/README.md
@@ -116,3 +116,9 @@ class ExchangeName extends Exchange {
 
 Im not sure if i will continue to work on this project, but if people want me to i will probaly continue.
 For private support, Contact me via discord Rick404#8294.
+
+
+## Contribution
+
+This project was improved as part of a learning contribution.
+Contributor: Sneha Debnath