#!/usr/bin/env python3
"""
Fix the PostgreSQL GROUP BY bug in ERPNext's payment_ledger_entry.py
on the server via SSH.

The bug: update_voucher_outstanding() selects 'account', 'party_type', 'party'
but doesn't include them in GROUP BY — PostgreSQL requires this, MariaDB doesn't.

This script SSH into the server and patches the file in-place.
"""
import subprocess
import sys

SERVER = "root@96.125.196.67"
# Path inside the erpnext docker container
CONTAINER = "erpnext-backend-1"
FILE_PATH = "apps/erpnext/erpnext/accounts/doctype/payment_ledger_entry/payment_ledger_entry.py"

# First, let's read the current file to find the exact code to patch
print("Step 1: Reading current file from server...")
result = subprocess.run(
    ["ssh", SERVER, f"docker exec {CONTAINER} cat /home/frappe/frappe-bench/{FILE_PATH}"],
    capture_output=True, text=True
)

if result.returncode != 0:
    print(f"ERROR reading file: {result.stderr}")
    sys.exit(1)

content = result.stdout
print(f"  File size: {len(content)} bytes")

# Find the problematic groupby
# Look for the pattern where groupby has voucher_type and voucher_no but NOT account
import re

# Find the update_voucher_outstanding function and its groupby
lines = content.split('\n')
found = False
for i, line in enumerate(lines):
    if 'def update_voucher_outstanding' in line:
        print(f"  Found function at line {i+1}")
    if '.groupby(' in line and 'voucher_type' in line and 'voucher_no' in line:
        # Check surrounding lines for account in groupby
        context = '\n'.join(lines[max(0,i-3):i+5])
        if 'ple.account' not in context or '.groupby' in line:
            print(f"  Found groupby at line {i+1}: {line.strip()}")
            found = True

if not found:
    print("  Could not find the problematic groupby pattern")
    print("  Dumping function for manual inspection...")
    in_func = False
    for i, line in enumerate(lines):
        if 'def update_voucher_outstanding' in line:
            in_func = True
        if in_func:
            print(f"  {i+1}: {line}")
            if in_func and line.strip() and not line.startswith('\t') and not line.startswith(' ') and i > 0:
                if 'def ' in line and 'update_voucher_outstanding' not in line:
                    break
        if in_func and i > 250:  # safety limit
            break

print("\n--- Full file dumped for inspection ---")
print("Use this output to craft the sed command manually")