"""
Pydantic models for Trial Balance (Balanță de Verificare)
Maps to Oracle VBAL table
"""
from pydantic import BaseModel, Field
from typing import Optional, List
from decimal import Decimal

class TrialBalanceItem(BaseModel):
    """
    Individual trial balance record from VBAL table
    """
    cont: str = Field(description="Număr cont contabil")
    dcont: str = Field(description="Denumire cont")
    sold_precedent_debit: Decimal = Field(description="Sold precedent debit", decimal_places=2)
    sold_precedent_credit: Decimal = Field(description="Sold precedent credit", decimal_places=2)
    rulaj_lunar_debit: Decimal = Field(description="Rulaj lunar debit", decimal_places=2)
    rulaj_lunar_credit: Decimal = Field(description="Rulaj lunar credit", decimal_places=2)
    sold_final_debit: Decimal = Field(description="Sold final debit", decimal_places=2)
    sold_final_credit: Decimal = Field(description="Sold final credit", decimal_places=2)

    class Config:
        from_attributes = True


class TrialBalanceFilters(BaseModel):
    """
    Filters applied to trial balance data
    """
    luna: int = Field(description="Luna (1-12)")
    an: int = Field(description="An")
    cont_filter: Optional[str] = Field(default=None, description="Filtru număr cont (partial match)")
    denumire_filter: Optional[str] = Field(default=None, description="Filtru denumire cont (partial match, case-insensitive)")


class TrialBalancePagination(BaseModel):
    """
    Pagination metadata
    """
    total_items: int = Field(description="Total number of items")
    total_pages: int = Field(description="Total number of pages")
    current_page: int = Field(description="Current page number")
    page_size: int = Field(description="Items per page")


class TrialBalanceResponse(BaseModel):
    """
    Complete response for trial balance endpoint
    """
    success: bool = Field(default=True, description="Request success status")
    data: dict = Field(description="Trial balance data with items, pagination, and filters")

    class Config:
        schema_extra = {
            "example": {
                "success": True,
                "data": {
                    "items": [
                        {
                            "cont": "4111",
                            "dcont": "Furnizori interni",
                            "sold_precedent_debit": 0.00,
                            "sold_precedent_credit": 15000.00,
                            "rulaj_lunar_debit": 5000.00,
                            "rulaj_lunar_credit": 8000.00,
                            "sold_final_debit": 0.00,
                            "sold_final_credit": 18000.00
                        }
                    ],
                    "pagination": {
                        "total_items": 150,
                        "total_pages": 3,
                        "current_page": 1,
                        "page_size": 50
                    },
                    "filters_applied": {
                        "luna": 11,
                        "an": 2025,
                        "cont_filter": None,
                        "denumire_filter": "furnizori"
                    }
                }
            }
        }