import logging
from datetime import timedelta

AML = env['account.move.line'].sudo()

# Outstanding Receipts (493) has:
# - CREDITS from Elavon bank deposits (reconcile model posted them)
# - DEBITS from Poynt customer payments (we just created them)
# These need to be matched against each other

# Get all unreconciled lines on account 493
credits = AML.search([
    ('account_id', '=', 493),
    ('reconciled', '=', False),
    ('balance', '<', 0),  # Credits (Elavon deposits)
    ('parent_state', '=', 'posted'),
], order='date asc')

debits = AML.search([
    ('account_id', '=', 493),
    ('reconciled', '=', False),
    ('balance', '>', 0),  # Debits (Poynt payments + other)
    ('parent_state', '=', 'posted'),
], order='date asc')

print(f'Unreconciled on Outstanding Receipts (493):', flush=True)
print(f'  Credits (Elavon deposits etc): {len(credits)}, total: {sum(c.balance for c in credits):.2f}', flush=True)
print(f'  Debits (Poynt payments etc): {len(debits)}, total: {sum(d.balance for d in debits):.2f}', flush=True)

# Strategy: match credits and debits by exact amount + close date
# Build index of debits by amount
from collections import defaultdict
debit_by_amount = defaultdict(list)
for d in debits:
    debit_by_amount[round(d.balance, 2)].append(d)

matched = 0
used_debit_ids = set()

for credit in credits:
    credit_amount = round(abs(credit.balance), 2)
    candidates = [d for d in debit_by_amount.get(credit_amount, []) if d.id not in used_debit_ids]

    if not candidates:
        continue

    # Pick closest date
    best = min(candidates, key=lambda d: abs((d.date - credit.date).days))
    gap = abs((best.date - credit.date).days)

    # Match if within 30 days
    if gap <= 30:
        try:
            (credit + best).reconcile()
            used_debit_ids.add(best.id)
            matched += 1
        except Exception as e:
            if matched < 3:
                print(f'  Error matching {credit.id} + {best.id}: {e}', flush=True)

    if matched % 100 == 0 and matched > 0:
        env.cr.commit()
        print(f'  Progress: {matched} matched', flush=True)

env.cr.commit()
print(f'\nMatched: {matched} pairs on Outstanding Receipts', flush=True)

# Check remaining
remaining = AML.search_count([
    ('account_id', '=', 493),
    ('reconciled', '=', False),
    ('parent_state', '=', 'posted'),
])
print(f'Remaining unreconciled on 493: {remaining}', flush=True)