Files
arrr-erp/app/modules/accounting/cash_payment_ui.py
T
2026-09-04 00:05:09 +05:30

554 lines
23 KiB
Python

from __future__ import annotations
from datetime import date, datetime
from decimal import Decimal, InvalidOperation
from urllib.parse import quote
from fastapi import APIRouter, Request
from fastapi.responses import RedirectResponse, JSONResponse
from sqlalchemy import select
from app.core.db.common import CommonSessionLocal
from app.core.security.csrf import get_or_create_csrf_token, validate_csrf
from app.core.security.session_auth import get_current_user
from app.core.templating import templates
from app.modules.accounting.agent_bridge import request_agent_command
from app.modules.accounting.cash_payment_models import CashPaymentRuleSetting
from app.modules.accounting.ui import (
_accounting_storage_payload,
_denied,
_find_visible_client,
_financial_year_for_date,
_node_online,
_require_partner,
_visible_clients,
)
from app.modules.core.audit.service import write_audit_log
from app.modules.core.rbac.deps import get_user_permissions, get_user_roles
from app.modules.documents.services import get_active_storage_node_for_branch
router = APIRouter(prefix="/tools/accounting/cash-payments", tags=["accounting-cash-payment-ui"])
def _tenant_id(request: Request, user) -> int:
return int(request.session.get("active_tenant_id") or getattr(user, "tenant_id", 0) or 0)
def _setting(db, tenant_id: int) -> CashPaymentRuleSetting:
row = db.execute(
select(CashPaymentRuleSetting).where(CashPaymentRuleSetting.tenant_id == int(tenant_id))
).scalar_one_or_none()
if row:
return row
row = CashPaymentRuleSetting(
tenant_id=int(tenant_id),
cash_limit=10000.0,
effective_from=date(2017, 4, 1),
split_window_days=3,
near_limit_percent=80.0,
max_allocation_days=5,
)
db.add(row)
db.commit()
db.refresh(row)
return row
def _parse_money(value: str, label: str) -> float:
try:
amount = Decimal(str(value or "").replace(",", "").strip())
except (InvalidOperation, ValueError):
raise ValueError(f"{label} must be a valid amount.")
if amount <= 0:
raise ValueError(f"{label} must be greater than zero.")
return float(amount.quantize(Decimal("0.01")))
def _allocation_plan(source_text: str, expected_total: float, cash_limit: float, max_days: int) -> dict:
entries = []
errors = []
for line_no, raw in enumerate((source_text or "").splitlines(), start=1):
text = raw.strip()
if not text:
continue
parts = [part.strip() for part in text.split(",")]
if len(parts) != 2:
errors.append(f"Line {line_no}: use YYYY-MM-DD, amount.")
continue
try:
paid_on = date.fromisoformat(parts[0])
amount = _parse_money(parts[1], f"Line {line_no} amount")
except Exception as exc:
errors.append(str(exc))
continue
entries.append({"date": paid_on.isoformat(), "amount": amount})
supplied_total = round(sum(row["amount"] for row in entries), 2)
by_date: dict[str, float] = {}
for row in entries:
by_date[row["date"]] = round(by_date.get(row["date"], 0.0) + row["amount"], 2)
above_limit_dates = [
{"date": key, "amount": value}
for key, value in sorted(by_date.items())
if value > float(cash_limit) + 0.009
]
dates = sorted(date.fromisoformat(key) for key in by_date)
span_days = ((dates[-1] - dates[0]).days + 1) if dates else 0
if abs(supplied_total - round(float(expected_total), 2)) > 0.009:
errors.append(
f"Source-date total is {supplied_total:.2f}, but the accounting amount is {float(expected_total):.2f}."
)
if above_limit_dates:
errors.append("One or more actual payment dates exceed the configured daily review limit.")
if span_days > int(max_days):
errors.append(
f"Actual source dates span {span_days} days, exceeding the configured {int(max_days)}-day allocation window."
)
return {
"entries": entries,
"by_date": [{"date": key, "amount": value} for key, value in sorted(by_date.items())],
"expected_total": round(float(expected_total), 2),
"supplied_total": supplied_total,
"cash_limit": round(float(cash_limit), 2),
"span_days": span_days,
"max_allocation_days": int(max_days),
"above_limit_dates": above_limit_dates,
"errors": errors,
"status": "ready" if entries and not errors else "manual_review",
"source_dates_only": True,
"note": "The planner never creates or changes payment dates. Proposed entries use only the actual source dates entered by the user.",
}
def _render(request: Request, db, user, **context):
base = {
"request": request,
"current_user": user,
"current_user_roles": get_user_roles(db, user.id),
"current_user_permissions": get_user_permissions(db, user.id),
"csrf_token": get_or_create_csrf_token(request),
}
base.update(context)
return templates.TemplateResponse(
"modules/accounting/templates/accounting/cash_payment_review.html",
base,
)
@router.get("")
def cash_payment_review(
request: Request,
client_id: int | None = None,
tally_guid: str = "",
date_from: str = "",
date_to: str = "",
job_id: str = "",
analyze: int = 0,
saved: int = 0,
error: str = "",
):
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return response
clients, scope = _visible_clients(db, request, user)
selected_client = next((row for row in clients if client_id and int(row.id) == int(client_id)), None)
tenant_id = _tenant_id(request, user)
setting = _setting(db, tenant_id)
node = get_active_storage_node_for_branch(db, scope.tenant_id, scope.branch_id)
online = _node_online(node)
today = date.today()
fy = _financial_year_for_date(today)
fy_start_year = int(fy.split("-", 1)[0])
start_text = date_from or date(fy_start_year, 4, 1).isoformat()
end_text = date_to or today.isoformat()
live_result = None
review = None
cache_job = None
command_error = error or ""
if selected_client and node and online:
try:
status_response = request_agent_command(
node.node_code,
"phase4_status",
_accounting_storage_payload(selected_client, _financial_year_for_date(date.fromisoformat(start_text))),
timeout_seconds=20,
)
if status_response.get("ok"):
live_result = status_response.get("result") or {}
else:
command_error = str(status_response.get("error") or "Local Agent status failed.")
if job_id:
status = request_agent_command(
node.node_code,
"accounting_cash_payment_cache_status",
{
**_accounting_storage_payload(selected_client, _financial_year_for_date(date.fromisoformat(start_text))),
"job_id": str(job_id),
},
timeout_seconds=20,
)
if status.get("ok"):
cache_job = (status.get("result") or {}).get("job")
else:
command_error = str(status.get("error") or "Could not read cash-payment cache status.")
if analyze and job_id and cache_job and cache_job.get("status") == "completed":
result = request_agent_command(
node.node_code,
"accounting_cash_payment_cache_analyze",
{
**_accounting_storage_payload(selected_client, _financial_year_for_date(date.fromisoformat(start_text))),
"job_id": str(job_id),
"cash_limit": float(setting.cash_limit),
"split_window_days": int(setting.split_window_days),
"near_limit_percent": float(setting.near_limit_percent),
},
timeout_seconds=120,
)
if result.get("ok"):
review = (result.get("result") or {}).get("cash_payment_review")
else:
command_error = str(result.get("error") or "Cash payment SQLite analysis failed.")
except Exception as exc:
command_error = str(exc)
return _render(
request,
db,
user,
title="Cash Payment Compliance Review",
clients=clients,
selected_client=selected_client,
storage_node=node,
agent_online=online,
live_result=live_result,
selected_tally_guid=str(tally_guid or ""),
date_from=start_text,
date_to=end_text,
setting=setting,
review=review,
cache_job=cache_job,
active_job_id=str(job_id or ""),
saved=bool(saved),
command_error=command_error,
allocation_plan=None,
allocation_input={"total_amount": "", "party_name": "", "expense_ledger": "", "source_payments": ""},
page_mode="compliance",
)
finally:
db.close()
@router.post("/cache/start")
async def start_cash_payment_cache(request: Request):
form = await request.form()
validate_csrf(request, str(form.get("csrf_token") or ""))
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return JSONResponse({"ok": False, "error": "Access denied."}, status_code=403)
clients, scope = _visible_clients(db, request, user)
try:
client_id = int(form.get("client_id") or 0)
except Exception:
client_id = 0
selected_client = next((row for row in clients if int(row.id) == client_id), None)
if not selected_client:
return JSONResponse({"ok": False, "error": "Select a valid client."}, status_code=400)
tally_guid = str(form.get("tally_guid") or "").strip()
date_from = str(form.get("date_from") or "").strip()
date_to = str(form.get("date_to") or "").strip()
try:
parsed_from = date.fromisoformat(date_from)
parsed_to = date.fromisoformat(date_to)
if parsed_to < parsed_from:
raise ValueError("To date cannot be before From date.")
except Exception as exc:
return JSONResponse({"ok": False, "error": str(exc)}, status_code=400)
if not tally_guid:
return JSONResponse({"ok": False, "error": "Select a mapped Tally company."}, status_code=400)
node = get_active_storage_node_for_branch(db, scope.tenant_id, scope.branch_id)
if not node or not _node_online(node):
return JSONResponse({"ok": False, "error": "ERP Local Agent is offline."}, status_code=409)
setting = _setting(db, _tenant_id(request, user))
try:
result = request_agent_command(
node.node_code,
"accounting_cash_payment_cache_start",
{
**_accounting_storage_payload(selected_client, _financial_year_for_date(parsed_from)),
"tally_guid": tally_guid,
"date_from": date_from,
"date_to": date_to,
"cash_limit": float(setting.cash_limit),
"split_window_days": int(setting.split_window_days),
"near_limit_percent": float(setting.near_limit_percent),
"tally_pause_seconds": 3.0,
"requested_by_user_id": int(user.id),
},
timeout_seconds=30,
)
except Exception as exc:
return JSONResponse({"ok": False, "error": str(exc)}, status_code=502)
if not result.get("ok"):
return JSONResponse({"ok": False, "error": str(result.get("error") or "Could not start Tally extraction.")}, status_code=409)
return JSONResponse({"ok": True, **(result.get("result") or {})})
finally:
db.close()
@router.post("/cache/cancel")
async def cancel_cash_payment_cache(request: Request):
form = await request.form()
validate_csrf(request, str(form.get("csrf_token") or ""))
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return JSONResponse({"ok": False, "error": "Access denied."}, status_code=403)
clients, scope = _visible_clients(db, request, user)
try:
client_id = int(form.get("client_id") or 0)
except Exception:
client_id = 0
selected_client = next((row for row in clients if int(row.id) == client_id), None)
if not selected_client:
return JSONResponse({"ok": False, "error": "Select a valid client."}, status_code=400)
job_id = str(form.get("job_id") or "").strip()
date_from = str(form.get("date_from") or "").strip()
if not job_id:
return JSONResponse({"ok": False, "error": "Extraction job id is required."}, status_code=400)
try:
parsed_from = date.fromisoformat(date_from)
except Exception:
return JSONResponse({"ok": False, "error": "Valid extraction From date is required."}, status_code=400)
node = get_active_storage_node_for_branch(db, scope.tenant_id, scope.branch_id)
if not node or not _node_online(node):
return JSONResponse({"ok": False, "error": "ERP Local Agent is offline."}, status_code=409)
result = request_agent_command(
node.node_code,
"accounting_cash_payment_cache_cancel",
{
**_accounting_storage_payload(selected_client, _financial_year_for_date(parsed_from)),
"job_id": job_id,
},
timeout_seconds=15,
)
if not result.get("ok"):
return JSONResponse({"ok": False, "error": str(result.get("error") or "Could not cancel extraction.")}, status_code=409)
return JSONResponse({"ok": True, **(result.get("result") or {})})
except Exception as exc:
return JSONResponse({"ok": False, "error": str(exc)}, status_code=502)
finally:
db.close()
@router.get("/cache/progress")
def cash_payment_cache_progress(request: Request, client_id: int, job_id: str, date_from: str):
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return JSONResponse({"ok": False, "error": "Access denied."}, status_code=403)
clients, scope = _visible_clients(db, request, user)
selected_client = next((row for row in clients if int(row.id) == int(client_id)), None)
if not selected_client:
return JSONResponse({"ok": False, "error": "Client not found."}, status_code=404)
node = get_active_storage_node_for_branch(db, scope.tenant_id, scope.branch_id)
if not node or not _node_online(node):
return JSONResponse({"ok": False, "error": "ERP Local Agent is offline."}, status_code=409)
try:
fy = _financial_year_for_date(date.fromisoformat(date_from))
result = request_agent_command(
node.node_code,
"accounting_cash_payment_cache_status",
{**_accounting_storage_payload(selected_client, fy), "job_id": str(job_id)},
timeout_seconds=20,
)
except Exception as exc:
return JSONResponse({"ok": False, "error": str(exc)}, status_code=502)
if not result.get("ok"):
return JSONResponse({"ok": False, "error": str(result.get("error") or "Could not read extraction progress.")}, status_code=409)
return JSONResponse({"ok": True, **(result.get("result") or {})})
finally:
db.close()
@router.get("/allocation")
def cash_payment_allocation(
request: Request,
client_id: int | None = None,
error: str = "",
):
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return response
clients, scope = _visible_clients(db, request, user)
selected_client = next((row for row in clients if client_id and int(row.id) == int(client_id)), None)
setting = _setting(db, _tenant_id(request, user))
node = get_active_storage_node_for_branch(db, scope.tenant_id, scope.branch_id)
return _render(
request,
db,
user,
title="Cash Payment Entry Allocation",
clients=clients,
selected_client=selected_client,
storage_node=node,
agent_online=_node_online(node),
live_result=None,
selected_tally_guid="",
date_from="",
date_to="",
setting=setting,
review=None,
cache_job=None,
active_job_id="",
saved=False,
command_error=error or "",
allocation_plan=None,
allocation_input={"total_amount": "", "party_name": "", "expense_ledger": "", "source_payments": ""},
page_mode="allocation",
)
finally:
db.close()
@router.post("/settings")
async def save_cash_payment_settings(request: Request):
form = await request.form()
validate_csrf(request, str(form.get("csrf_token") or ""))
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return response
tenant_id = _tenant_id(request, user)
setting = _setting(db, tenant_id)
old = {
"cash_limit": setting.cash_limit,
"effective_from": setting.effective_from.isoformat() if setting.effective_from else None,
"split_window_days": setting.split_window_days,
"near_limit_percent": setting.near_limit_percent,
"max_allocation_days": setting.max_allocation_days,
}
try:
cash_limit = _parse_money(str(form.get("cash_limit") or ""), "Cash payment limit")
effective_from = date.fromisoformat(str(form.get("effective_from") or ""))
split_window_days = int(form.get("split_window_days") or 3)
near_limit_percent = float(form.get("near_limit_percent") or 80)
max_allocation_days = int(form.get("max_allocation_days") or 5)
if not 1 <= split_window_days <= 31:
raise ValueError("Split-payment review window must be between 1 and 31 days.")
if not 1 <= near_limit_percent <= 100:
raise ValueError("Near-limit percentage must be between 1 and 100.")
if not 1 <= max_allocation_days <= 366:
raise ValueError("Maximum source-date allocation window must be between 1 and 366 days.")
except Exception as exc:
return RedirectResponse(url="/tools/accounting/cash-payments?error=" + quote(str(exc)), status_code=303)
setting.cash_limit = cash_limit
setting.effective_from = effective_from
setting.split_window_days = split_window_days
setting.near_limit_percent = near_limit_percent
setting.max_allocation_days = max_allocation_days
setting.updated_by_user_id = int(user.id)
setting.updated_at_utc = datetime.utcnow()
db.commit()
try:
write_audit_log(
db,
actor=user,
request=request,
action="accounting.cash_payment_rule.updated",
entity_type="CashPaymentRuleSetting",
entity_id=int(setting.id),
entity_name="Cash Payment Compliance Settings",
target_tenant_id=int(tenant_id),
details={
"before": old,
"after": {
"cash_limit": setting.cash_limit,
"effective_from": setting.effective_from.isoformat(),
"split_window_days": setting.split_window_days,
"near_limit_percent": setting.near_limit_percent,
"max_allocation_days": setting.max_allocation_days,
},
},
)
except Exception:
db.rollback()
client_id = str(form.get("client_id") or "").strip()
suffix = f"&client_id={client_id}" if client_id else ""
return RedirectResponse(url=f"/tools/accounting/cash-payments?saved=1{suffix}", status_code=303)
finally:
db.close()
@router.post("/allocation-plan")
async def cash_payment_allocation_plan(request: Request):
form = await request.form()
validate_csrf(request, str(form.get("csrf_token") or ""))
db = CommonSessionLocal()
try:
user, response = _require_partner(request, db, "accounting.tally.view")
if response:
return response
clients, scope = _visible_clients(db, request, user)
client_id = int(form.get("client_id") or 0)
selected_client = next((row for row in clients if int(row.id) == client_id), None)
if not selected_client:
return _denied()
setting = _setting(db, _tenant_id(request, user))
total_amount_text = str(form.get("total_amount") or "")
party_name = str(form.get("party_name") or "").strip()
expense_ledger = str(form.get("expense_ledger") or "").strip()
source_payments = str(form.get("source_payments") or "")
try:
total_amount = _parse_money(total_amount_text, "Total cash payment")
plan = _allocation_plan(source_payments, total_amount, float(setting.cash_limit), int(setting.max_allocation_days))
except Exception as exc:
plan = {"entries": [], "errors": [str(exc)], "status": "manual_review", "source_dates_only": True}
node = get_active_storage_node_for_branch(db, scope.tenant_id, scope.branch_id)
return _render(
request,
db,
user,
title="Cash Payment Compliance Review",
clients=clients,
selected_client=selected_client,
storage_node=node,
agent_online=_node_online(node),
live_result=None,
selected_tally_guid="",
date_from="",
date_to="",
setting=setting,
review=None,
cache_job=None,
active_job_id="",
saved=False,
command_error="",
allocation_plan=plan,
allocation_input={
"total_amount": total_amount_text,
"party_name": party_name,
"expense_ledger": expense_ledger,
"source_payments": source_payments,
},
page_mode="allocation",
)
finally:
db.close()