356 lines
13 KiB
Python
356 lines
13 KiB
Python
from django.conf import settings
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from django.core.exceptions import ValidationError
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from django.utils.dateparse import parse_date
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from rest_framework import permissions, status, viewsets
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from rest_framework.decorators import action
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from rest_framework.response import Response
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import secrets
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from apps.accounts.models import User
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from apps.farms.models import Cycle, Flock, Kandang, Site
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from apps.farms.serializers import CycleSerializer, FlockSerializer, KandangSerializer, SiteSerializer
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from apps.farms.services.pusat_close import PusatCloseError, notify_pusat_close_request
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from apps.operations.services.feed_sacks import (
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cleanup_opening_balance_feed_rows,
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recompute_feed_sack_in_totals,
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)
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from apps.operations.services.karung_web import (
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initial_balance_accuracy,
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pull_initial_balance_iot,
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)
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def _validation_detail(exc: ValidationError) -> str | dict:
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if hasattr(exc, "message_dict"):
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return exc.message_dict
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if hasattr(exc, "messages"):
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return "; ".join(str(m) for m in exc.messages)
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return str(exc.message) if hasattr(exc, "message") else str(exc)
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def _pusat_api_key_from_request(request) -> str | None:
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return request.headers.get("X-API-Key") or request.META.get("HTTP_X_API_KEY")
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class IsPusatCloseCallback(permissions.BasePermission):
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"""Allow only the shared pusat callback key (not session users)."""
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message = "Pusat API key required."
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def has_permission(self, request, view):
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expected = (getattr(settings, "PUSAT_API_KEY", "") or "").strip()
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if not expected:
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return False
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provided = (_pusat_api_key_from_request(request) or "").strip()
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if not provided:
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return False
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return secrets.compare_digest(provided, expected)
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def _revert_pending_close(cycle: Cycle) -> None:
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cycle.status = Cycle.STATUS_ACTIVE
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cycle.clear_close_request_fields()
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cycle.save(
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update_fields=[
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"status",
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"proposed_end_date",
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"close_requested_at",
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"close_requested_by",
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"updated_at",
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]
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)
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def _restore_pending_close(
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cycle: Cycle,
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*,
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proposed_end_date,
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close_requested_at,
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close_requested_by_id,
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) -> None:
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cycle.status = Cycle.STATUS_PENDING_CLOSE
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cycle.proposed_end_date = proposed_end_date
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cycle.close_requested_at = close_requested_at
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cycle.close_requested_by_id = close_requested_by_id
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cycle.save(
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update_fields=[
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"status",
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"proposed_end_date",
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"close_requested_at",
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"close_requested_by",
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"updated_at",
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]
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)
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class IsSuperAdminForWrite(permissions.BasePermission):
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"""Reads for any authenticated user; mutations only for superadmin.
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Staff accounts may read sites/kandangs (to pick one and create a cycle) but
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cannot create, edit, or delete them — only superadmins manage structures.
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"""
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def has_permission(self, request, view):
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if not request.user or not request.user.is_authenticated:
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return False
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if request.method in permissions.SAFE_METHODS:
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return True
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return bool(request.user.is_superuser or request.user.status == User.STATUS_SUPERADMIN)
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class SiteViewSet(viewsets.ModelViewSet):
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queryset = Site.objects.select_related("user").all()
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serializer_class = SiteSerializer
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permission_classes = [IsSuperAdminForWrite]
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def get_queryset(self):
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qs = super().get_queryset()
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user_id = self.request.query_params.get("user_id")
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if user_id:
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qs = qs.filter(user_id=user_id)
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return qs
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class KandangViewSet(viewsets.ModelViewSet):
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queryset = Kandang.objects.select_related("site").all()
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serializer_class = KandangSerializer
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permission_classes = [IsSuperAdminForWrite]
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def get_queryset(self):
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qs = super().get_queryset()
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site_id = self.request.query_params.get("site_id")
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if site_id:
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qs = qs.filter(site_id=site_id)
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return qs
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class FlockViewSet(viewsets.ModelViewSet):
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queryset = Flock.objects.select_related("kandang").all()
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serializer_class = FlockSerializer
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permission_classes = [IsSuperAdminForWrite]
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def get_queryset(self):
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qs = super().get_queryset()
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kandang_id = self.request.query_params.get("kandang_id")
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if kandang_id:
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qs = qs.filter(kandang_id=kandang_id)
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return qs
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class CycleViewSet(viewsets.ModelViewSet):
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queryset = Cycle.objects.select_related("kandang", "kandang__site", "close_requested_by").all()
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serializer_class = CycleSerializer
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def get_queryset(self):
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qs = super().get_queryset()
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params = self.request.query_params
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if params.get("kandang_id"):
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qs = qs.filter(kandang_id=params["kandang_id"])
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if params.get("status"):
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qs = qs.filter(status=params["status"])
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return qs
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@action(detail=True, methods=["post"], url_path="request-close")
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def request_close(self, request, pk=None):
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cycle = self.get_object()
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raw = request.data.get("proposed_end_date")
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proposed = parse_date(str(raw)) if raw else None
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if proposed is None:
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return Response(
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{"detail": "proposed_end_date is required (YYYY-MM-DD)."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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try:
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cycle.request_close(request.user, proposed)
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except ValidationError as exc:
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return Response({"detail": _validation_detail(exc)}, status=status.HTTP_400_BAD_REQUEST)
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try:
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notify_pusat_close_request(cycle, cancelled=False)
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except PusatCloseError as exc:
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_revert_pending_close(cycle)
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return Response(
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{"detail": exc.message},
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status=status.HTTP_502_BAD_GATEWAY,
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)
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return Response(CycleSerializer(cycle).data)
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@action(detail=True, methods=["post"], url_path="cancel-close-request")
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def cancel_close_request(self, request, pk=None):
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cycle = self.get_object()
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snapshot = {
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"proposed_end_date": cycle.proposed_end_date,
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"close_requested_at": cycle.close_requested_at,
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"close_requested_by_id": cycle.close_requested_by_id,
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}
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try:
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cycle.cancel_close_request(request.user)
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except ValidationError as exc:
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return Response({"detail": _validation_detail(exc)}, status=status.HTTP_400_BAD_REQUEST)
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try:
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notify_pusat_close_request(cycle, cancelled=True)
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except PusatCloseError as exc:
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_restore_pending_close(cycle, **snapshot)
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return Response(
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{"detail": exc.message},
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status=status.HTTP_502_BAD_GATEWAY,
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)
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return Response(CycleSerializer(cycle).data)
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@action(
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detail=True,
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methods=["post"],
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url_path="apply-close-decision",
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authentication_classes=[],
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permission_classes=[IsPusatCloseCallback],
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)
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def apply_close_decision(self, request, pk=None):
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"""Machine endpoint: pusat pushes approve/reject via shared PUSAT_API_KEY."""
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cycle = self.get_object()
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decision = str(request.data.get("decision", "")).strip().lower()
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if decision not in {"approve", "reject"}:
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return Response(
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{"detail": "decision must be 'approve' or 'reject'."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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end_date = None
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if decision == "approve":
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raw = request.data.get("end_date")
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end_date = parse_date(str(raw)) if raw else None
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if end_date is None:
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return Response(
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{"detail": "end_date is required when decision is approve."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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try:
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cycle.apply_close_decision(approved=(decision == "approve"), end_date=end_date)
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except ValidationError as exc:
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return Response({"detail": _validation_detail(exc)}, status=status.HTTP_400_BAD_REQUEST)
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return Response(CycleSerializer(cycle).data)
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@action(detail=True, methods=["get"], url_path="initial-balance-compare")
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def compare_initial_balance(self, request, pk=None):
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"""Pull IoT masuk for a date and compare against the cycle saldo awal."""
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cycle = self.get_object()
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date_str = request.query_params.get("date")
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if not date_str:
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return Response({"detail": "date is required."}, status=status.HTTP_400_BAD_REQUEST)
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balance_date = parse_date(str(date_str))
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if balance_date is None:
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return Response(
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{"detail": "date must be in YYYY-MM-DD format."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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manual_raw = request.query_params.get("manual")
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if manual_raw is None:
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feed_in_manual = cycle.feed_initial_balance
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else:
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try:
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feed_in_manual = int(manual_raw)
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except (TypeError, ValueError):
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return Response(
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{"detail": "manual must be an integer."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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iot_in, sync_error = pull_initial_balance_iot(cycle, balance_date)
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return Response(
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{
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"cycle": cycle.pk,
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"date": balance_date.isoformat(),
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"feed_initial_balance": cycle.feed_initial_balance,
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"feed_initial_balance_date": (
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cycle.feed_initial_balance_date.isoformat()
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if cycle.feed_initial_balance_date
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else None
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),
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"manual": feed_in_manual,
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"manual_total": feed_in_manual,
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"iot": iot_in,
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"accuracy": initial_balance_accuracy(feed_in_manual, iot_in),
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"sync_error": sync_error,
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}
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)
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@action(detail=True, methods=["post"], url_path="initial-balance")
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def set_initial_balance(self, request, pk=None):
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"""Save the feed-in balance for the cycle (Saldo Awal).
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Sets ``feed_initial_balance`` on the cycle (the only cycle field this
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feature writes — never during cycle creation). Opening balance is kept on
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the cycle for saldo only and is not written into daily FeedSacks rows.
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Pulls the IoT-detected "in" for that date from karung-web-admin
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``/api/combined`` and returns a manual vs IoT accuracy figure.
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"""
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cycle = self.get_object()
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date_str = request.data.get("date")
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if not date_str:
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return Response({"detail": "date is required."}, status=status.HTTP_400_BAD_REQUEST)
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balance_date = parse_date(str(date_str))
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if balance_date is None:
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return Response(
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{"detail": "date must be in YYYY-MM-DD format."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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try:
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feed_in_manual = int(request.data.get("feed_in_manual"))
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except (TypeError, ValueError):
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return Response(
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{"detail": "feed_in_manual must be an integer."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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if feed_in_manual < 0:
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return Response(
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{"detail": "feed_in_manual cannot be negative."},
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status=status.HTTP_400_BAD_REQUEST,
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)
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previous_date = cycle.feed_initial_balance_date
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previous_balance = cycle.feed_initial_balance
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cycle.feed_initial_balance = feed_in_manual
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cycle.feed_initial_balance_date = balance_date
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cycle.save(
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update_fields=["feed_initial_balance", "feed_initial_balance_date", "updated_at"]
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)
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# Pull IoT "in" at the balance date from karung-web-admin /api/combined.
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iot_in, sync_error = pull_initial_balance_iot(cycle, balance_date)
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cleanup_opening_balance_feed_rows(
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cycle,
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previous_date=previous_date,
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previous_balance=previous_balance,
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balance_date=balance_date,
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balance_amount=feed_in_manual,
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)
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recompute_feed_sack_in_totals(cycle)
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accuracy = initial_balance_accuracy(feed_in_manual, iot_in)
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return Response(
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{
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"cycle": cycle.pk,
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"date": balance_date.isoformat(),
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"feed_initial_balance": cycle.feed_initial_balance,
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"feed_initial_balance_date": (
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cycle.feed_initial_balance_date.isoformat()
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if cycle.feed_initial_balance_date
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else None
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),
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"manual": feed_in_manual,
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"manual_total": feed_in_manual,
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"iot": iot_in,
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"accuracy": accuracy,
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"sync_error": sync_error,
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}
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)
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