reviewing code with ai tool

api_client.py

@@ -4,6 +4,42 @@
 
 import click
 import requests
+import urllib.parse
+
+
+API_ENDPOINT = '/api'
+VERSION = '1.1.4'
+
+
+def is_valid_url(url):
+    """
+    Checks if a given URL is valid and reachable.
+
+    Args:
+        url (str): The URL to check.
+
+    Returns:
+        bool: True if the URL is valid and reachable, False otherwise.
+    """
+    try:
+        result = urllib.parse.urlparse(url)
+        # Try to reach url with a `HEAD` call
+        response = requests.head(url)
+        response.raise_for_status()
+        return all([result.scheme, result.netloc])
+
+    except (ValueError, requests.exceptions.RequestException):
+        return False
+
+def exit_with_error(message):
+    """
+    Prints an error message and exits the program with a non-zero exit code.
+
+    Args:
+        message (str): The error message to print.
+    """
+    print(f"Error: {message}")
+    sys.exit(1)
 
 
 @click.command()
@@ -23,22 +59,25 @@ def main(file_path, host_url):
 
     # check if file path folder exist
     if not os.path.isfile(file_path):
-        print('Error: File', file_path, 'does not exist!')
-        sys.exit(1)
-    # ToDo: check if the `host_url` is a valid URL
+        exit_with_error(f"File {file_path} does not exist!")
+
+    # check if the `host_url` is a valid URL
+    if not is_valid_url(host_url):
+        exit_with_error(f"Invalid URL or unreachable host: {host_url}")
 
     # try to upload the file
-    with open(file_path, 'rb') as file:
-        req = requests.post(host_url + '/api', files={'file': open(file_path, 'rb')})
-        if req.status_code == 200:
+    try:
+        with open(file_path, 'rb') as file: #Opens the file in binary read mode `rb` to ensure proper handling of different file types
+            req = requests.post(host_url + API_ENDPOINT, files={'file': file})
+            req.raise_for_status() #Raise an exception for bad status code
             print('File ', file_path, 'was uploaded with success to ', host_url)
-        else:
-            print('Upload failed')
 
+    except requests.exceptions.RequestException as e:
+        exit_with_error(f"Error during upload: {e}")
 
 if __name__ == '__main__':
     print("------------------------------")
-    print("API Manual Upload File v-1.1.3")
+    print(f"API Manual Upload File v-{VERSION}")
     print("Date/Time: {}".format(time.asctime(time.localtime(time.time()))))
     print("------------------------------")