# backend/procurement/constants.py
"""
Константы для модуля закупок и инвентаря.
"""

from django.db import models


class ProcurementStatus(models.TextChoices):
    """Статусы заявки на закупку."""

    DRAFT = "draft", "Черновик"
    WAITING = "waiting", "Ожидает"
    PENDING = "pending", "На согласовании"
    APPROVED = "approved", "Одобрено"
    REJECTED = "rejected", "Отклонено"
    IN_PROGRESS = "in_progress", "В работе"
    COMPLETED = "completed", "Завершено"
    CANCELLED = "cancelled", "Отменено"


class UrgencyLevel(models.TextChoices):
    """Уровень срочности заявки."""

    LOW = "low", "Низкая"
    MEDIUM = "medium", "Средняя"
    HIGH = "high", "Высокая"
    CRITICAL = "critical", "Критическая"


class ProcurementFulfillmentStatus(models.TextChoices):
    """Рабочий статус исполнения заявки по позициям."""

    PENDING = "pending", "Ожидает обработки"
    PARTIALLY_ORDERED = "partially_ordered", "Заказано частично"
    ORDERED = "ordered", "Заказано"
    PARTIALLY_RECEIVED = "partially_received", "Прибыл частично"
    COMPLETED = "completed", "Выполнено"
    ISSUES = "issues", "Выполнено с проблемами"


class ProcurementItemExecutionStatus(models.TextChoices):
    """Рабочий статус отдельной позиции заявки."""

    PENDING = "pending", "Не выполнено"
    ORDERED = "ordered", "Заказано"
    REJECTED = "rejected", "Отказано"
    RECEIVED = "received", "Получено"
    COMPLETED_WITH_ISSUE = "completed_with_issue", "Выполнено с замечанием"
    EDITED = "edited", "Отредактировано"
    DEFECTIVE = "defective", "Брак / перезаказ"


def get_default_approval_step_name(
    priority: int, resolver_type: str | None = None
) -> str:
    if resolver_type == "department_head":
        return "Руководитель отдела"
    return f"Этап {priority}"


class ApprovalStatus(models.TextChoices):
    """Статус согласования."""

    PENDING = "pending", "Ожидает решения"
    APPROVED = "approved", "Одобрено"
    REJECTED = "rejected", "Отклонено"


class EquipmentStatus(models.TextChoices):
    """Статус оборудования."""

    AVAILABLE = "available", "Доступно"
    IN_USE = "in_use", "В использовании"
    MAINTENANCE = "maintenance", "На обслуживании"
    REPAIR = "repair", "В ремонте"
    RETIRED = "retired", "Списано"
    LOST = "lost", "Утеряно"


class MaintenanceType(models.TextChoices):
    """Тип технического обслуживания."""

    INSPECTION = "inspection", "Осмотр/проверка"
    MAINTENANCE = "maintenance", "Плановое ТО"
    REPAIR = "repair", "Ремонт"
    UPGRADE = "upgrade", "Модернизация"
    CLEANING = "cleaning", "Чистка"