Detailed ShareFile Authentication Debug
=====================================

Configuration:
==============
Subdomain: cazarin
Client ID: CwOHHD06vOwW4QlxPEYH4GULOhgoZLAw
Client Secret: l1ua****Zjjk
Username: david@cazarin.com
Password: *******************

Test 1: Direct Authentication (like oauth_password_grant.php)
============================================================
URL: https://cazarin.sharefile.com/oauth/token
Data: grant_type=password&username=david%40cazarin.com&password=if3w+ynzy+pfgx+i4dg&client_id=CwOHHD06vOwW4QlxPEYH4GULOhgoZLAw&client_secret=l1ua69h2mLoVmzgasRxq8H0F7SPXJedDYAqifLPFbLJkZjjk

Response:
=========
HTTP Code: 400
Response Body: {"error":"invalid_grant","error_description":"invalid username or password"}

❌ Test 1 FAILED: Direct authentication failed
Error: invalid_grant
Description: invalid username or password

Test 2: SimpleShareFileAPI Simulation
=====================================
Response:
=========
HTTP Code: 400
Response Body: {"error":"invalid_grant","error_description":"invalid username or password"}

❌ Test 2 FAILED: SimpleShareFileAPI simulation failed
Error: invalid_grant
Description: invalid username or password

Test 3: SimpleShareFileAPI Class Loading
========================================
✅ SimpleShareFileAPI.php loaded successfully
❌ Error loading SimpleShareFileAPI: Failed to authenticate with ShareFile API: Authentication failed with HTTP code: 400
Stack trace:
#0 /home/cazarindev/sfapi/src/SimpleShareFileAPI.php(28): ShareFileConnector\SimpleShareFileAPI->authenticate()
#1 /home/cazarindev/sfapi/detailed_auth_debug.php(174): ShareFileConnector\SimpleShareFileAPI->__construct()
#2 {main}

Analysis:
=========
If Test 1 works but Test 2 fails: There's a difference in the request format
If Test 2 works but Test 3 fails: There's an issue with the class implementation
If all tests fail: There's a fundamental authentication issue
If all tests pass: The issue might be elsewhere in the connector