84 lines
3.3 KiB
Python
84 lines
3.3 KiB
Python
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import re
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import uuid
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from django.db import transaction
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from apps.account.models import User
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from apps.banker.models import Contact
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from apps.messaging.api.services import BulkMessageService
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from apps.messaging.models import Channel
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from apps.orders.models import Order, OrderStage, OrderStageLog
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_FIELD_PATTERN = re.compile(r"\{(.*?)\}")
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class OrderStageService:
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@staticmethod
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def _render(order: Order, stage: OrderStage, extra_input_value: str = "") -> str:
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body = stage.template.body if stage.template else ""
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values = {
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"نام": order.customer_name,
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"شماره": order.customer_phone,
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"کد پیگیری": order.tracking_code,
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"مرحله": stage.label,
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"ورودی": extra_input_value,
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}
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return _FIELD_PATTERN.sub(lambda m: values.get(m.group(1), m.group(0)), body)
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@staticmethod
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def _upsert_contact(user: User, order: Order) -> Contact:
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contact = Contact.objects.filter(user=user, phone=order.customer_phone).first()
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if contact:
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return contact
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return Contact.objects.create(
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id=str(uuid.uuid4()), user=user, name=order.customer_name, phone=order.customer_phone
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)
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@staticmethod
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@transaction.atomic
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def advance(user: User, order_id: str, extra_input_value: str = "") -> Order:
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order = Order.objects.select_for_update().get(pk=order_id, user=user)
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if order.is_completed:
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raise ValueError("این سفارش قبلا به آخرین مرحله رسیده است.")
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stages = list(OrderStage.objects.filter(user=user).order_by("sort_order"))
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if not stages:
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raise ValueError("اول باید حداقل یک مرحله برای پیگیری سفارش تعریف کنی.")
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if order.current_stage_id is None:
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next_stage = stages[0]
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else:
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current_index = next((i for i, s in enumerate(stages) if s.id == order.current_stage_id), None)
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if current_index is None or current_index + 1 >= len(stages):
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raise ValueError("این سفارش قبلا به آخرین مرحله رسیده است.")
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next_stage = stages[current_index + 1]
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extra_input_value = (extra_input_value or "").strip()
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if next_stage.requires_extra_input and not extra_input_value:
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label = next_stage.extra_input_label or "ورودی این مرحله"
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raise ValueError(f"برای این مرحله باید «{label}» را وارد کنی.")
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contact = OrderStageService._upsert_contact(user, order)
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rendered = OrderStageService._render(order, next_stage, extra_input_value)
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if rendered:
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BulkMessageService.create_and_dispatch(
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user=user,
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channels=[Channel.SMS],
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contact_ids=[contact.id],
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body_override=rendered,
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)
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order.current_stage = next_stage
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order.is_completed = next_stage.id == stages[-1].id
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order.save(update_fields=["current_stage", "is_completed", "updated_at"])
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OrderStageLog.objects.create(
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id=str(uuid.uuid4()),
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order=order,
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stage=next_stage,
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stage_label=next_stage.label,
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message_body=rendered,
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extra_input_value=extra_input_value,
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)
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return order
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