"""
DTOs (Data Transfer Objects) para módulo de partes/componentes
Reemplaza schemas.py siguiendo enfoque DDD y estilo NestJS
"""

from datetime import datetime
from decimal import Decimal
from typing import Optional

from pydantic import BaseModel, Field


class PartCreateDTO(BaseModel):
    """DTO para crear una parte"""

    client_id: int = Field(..., description="Client key")
    part_number: str = Field(..., max_length=49, description="Part number")
    fraction: Optional[str] = Field(None, max_length=10, description="Tariff fraction")
    description_spanish: Optional[str] = Field(
        None, max_length=500, description="Description in Spanish"
    )
    description_english: Optional[str] = Field(
        None, max_length=500, description="Description in English"
    )
    part_class: Optional[str] = Field(None, max_length=8, description="Part class")
    unit_of_measure: Optional[str] = Field(
        None, max_length=5, description="Unit of measure"
    )
    commercial_part_number: Optional[str] = Field(
        None, max_length=70, description="Commercial part number"
    )
    country_of_origin: Optional[str] = Field(
        None, max_length=3, description="Country of origin code"
    )

    # Pricing and currency
    unit_cost: Optional[Decimal] = Field(None, description="Unit cost")
    currency_type: Optional[str] = Field(
        None, max_length=2, description="Currency type"
    )
    currency_key: Optional[str] = Field(None, max_length=3, description="Currency key")

    # Weight information
    unit_weight: Optional[Decimal] = Field(None, description="Unit weight")
    weight_type: Optional[str] = Field(None, max_length=6, description="Weight type")

    # Classification and regulatory
    us_fraction: Optional[str] = Field(
        None, max_length=16, description="US tariff fraction"
    )
    fda_key: Optional[str] = Field(None, max_length=20, description="FDA key")
    fcc_key: Optional[str] = Field(None, max_length=30, description="FCC key")
    license_code: Optional[str] = Field(None, max_length=3, description="License code")
    eccn: Optional[str] = Field(
        None, max_length=20, description="Export Control Classification Number"
    )
    export_code: Optional[str] = Field(None, max_length=2, description="Export code")
    exclusion_symbol: Optional[str] = Field(
        None, max_length=19, description="Exclusion symbol"
    )

    # Additional information
    supplier: Optional[str] = Field(None, max_length=14, description="Supplier")
    alternate_unit_measure: Optional[str] = Field(
        None, max_length=14, description="Alternate unit of measure"
    )
    added_value: Optional[Decimal] = Field(None, description="Added value")

    # Status and media
    is_active: Optional[bool] = Field(None, description="Enabled/Disabled status")
    creation_date: Optional[int] = Field(None, description="Creation date")
    part_photo: Optional[str] = Field(
        None, max_length=255, description="Part photo URL"
    )

    class Config:
        from_attributes = True


class PartUpdateDTO(BaseModel):
    """DTO para actualizar una parte"""

    fraction: Optional[str] = Field(None, max_length=10, description="Tariff fraction")
    description_spanish: Optional[str] = Field(
        None, max_length=500, description="Description in Spanish"
    )
    description_english: Optional[str] = Field(
        None, max_length=500, description="Description in English"
    )
    part_class: Optional[str] = Field(None, max_length=8, description="Part class")
    unit_of_measure: Optional[str] = Field(
        None, max_length=5, description="Unit of measure"
    )
    commercial_part_number: Optional[str] = Field(
        None, max_length=70, description="Commercial part number"
    )
    country_of_origin: Optional[str] = Field(
        None, max_length=3, description="Country of origin code"
    )

    # Pricing and currency
    unit_cost: Optional[Decimal] = Field(None, description="Unit cost")
    currency_type: Optional[str] = Field(
        None, max_length=2, description="Currency type"
    )
    currency_key: Optional[str] = Field(None, max_length=3, description="Currency key")

    # Weight information
    unit_weight: Optional[Decimal] = Field(None, description="Unit weight")
    weight_type: Optional[str] = Field(None, max_length=6, description="Weight type")

    # Classification and regulatory
    us_fraction: Optional[str] = Field(
        None, max_length=16, description="US tariff fraction"
    )
    fda_key: Optional[str] = Field(None, max_length=20, description="FDA key")
    fcc_key: Optional[str] = Field(None, max_length=30, description="FCC key")
    license_code: Optional[str] = Field(None, max_length=3, description="License code")
    eccn: Optional[str] = Field(
        None, max_length=20, description="Export Control Classification Number"
    )
    export_code: Optional[str] = Field(None, max_length=2, description="Export code")
    exclusion_symbol: Optional[str] = Field(
        None, max_length=19, description="Exclusion symbol"
    )

    # Additional information
    supplier: Optional[str] = Field(None, max_length=14, description="Supplier")
    alternate_unit_measure: Optional[str] = Field(
        None, max_length=14, description="Alternate unit of measure"
    )
    added_value: Optional[Decimal] = Field(None, description="Added value")

    # Status and media
    is_active: Optional[bool] = Field(None, description="Enabled/Disabled status")
    part_photo: Optional[str] = Field(
        None, max_length=255, description="Part photo URL"
    )

    class Config:
        from_attributes = True


class PartResponseDTO(BaseModel):
    """DTO para respuesta de parte"""

    client_id: int
    part_number: str
    fraction: Optional[str] = None
    description_spanish: Optional[str] = None
    description_english: Optional[str] = None
    part_class: Optional[str] = None
    unit_of_measure: Optional[str] = None
    commercial_part_number: Optional[str] = None
    country_of_origin: Optional[str] = None

    # Pricing and currency
    unit_cost: Optional[Decimal] = None
    currency_type: Optional[str] = None
    currency_key: Optional[str] = None

    # Weight information
    unit_weight: Optional[Decimal] = None
    weight_type: Optional[str] = None

    # Classification and regulatory
    us_fraction: Optional[str] = None
    fda_key: Optional[str] = None
    fcc_key: Optional[str] = None
    license_code: Optional[str] = None
    eccn: Optional[str] = None
    export_code: Optional[str] = None
    exclusion_symbol: Optional[str] = None

    # Additional information
    supplier: Optional[str] = None
    alternate_unit_measure: Optional[str] = None
    added_value: Optional[Decimal] = None

    # Status and dates
    is_active: Optional[bool] = None
    creation_date: Optional[int] = None
    modification_date: Optional[int] = None
    modification_date_iso: Optional[datetime] = None

    # Media
    part_photo: Optional[str] = None

    class Config:
        from_attributes = True


class PartBasicDTO(BaseModel):
    """DTO para información básica de parte"""

    client_id: int
    part_number: str
    description_spanish: Optional[str] = None
    description_english: Optional[str] = None
    part_class: Optional[str] = None
    unit_cost: Optional[Decimal] = None
    currency_key: Optional[str] = None
    is_active: Optional[bool] = None

    class Config:
        from_attributes = True


class PartListDTO(BaseModel):
    """DTO para lista de partes"""

    parts: list[PartBasicDTO]
    total: int
    page: int
    size: int

    class Config:
        from_attributes = True


class PartSearchDTO(BaseModel):
    """DTO para búsqueda de partes"""

    client_id: Optional[int] = Field(None, description="Filter by client key")
    part_number: Optional[str] = Field(None, description="Search by part number")
    description: Optional[str] = Field(None, description="Search in descriptions")
    fraction: Optional[str] = Field(None, description="Filter by tariff fraction")
    supplier: Optional[str] = Field(None, description="Filter by supplier")
    enabled_only: bool = Field(False, description="Show only enabled parts")

    class Config:
        from_attributes = True