from fastapi import APIRouter, Path as PathParam, Depends
from sqlalchemy.orm import Session
from typing import List

from app.database.connection import get_db
from app.models.number import NumberCheck
from app.schemas.number import NumberRequest, DivisibilityResponse, NumberCheckResponse

router = APIRouter()


@router.get("/", summary="API Root")
def read_root():
    """Welcome message for the API."""
    return {"message": "Welcome to the Number Divisibility API"}


@router.get(
    "/divisibility/{number}",
    response_model=DivisibilityResponse,
    summary="Check divisibility (GET)",
)
def check_divisibility(
    number: int = PathParam(..., description="The number to check divisibility for"),
    db: Session = Depends(get_db),
):
    """
    Check if a number is divisible by 2 and by 3.

    Returns a JSON response with the number and booleans indicating if it's divisible by 2 and by 3.
    """
    is_divisible_by_2 = number % 2 == 0
    is_divisible_by_3 = number % 3 == 0

    # Log the check in the database
    number_check = NumberCheck(
        number=number,
        is_divisible_by_2=is_divisible_by_2,
        is_divisible_by_3=is_divisible_by_3,
    )
    db.add(number_check)
    db.commit()
    db.refresh(number_check)

    return {
        "number": number,
        "is_divisible_by_2": is_divisible_by_2,
        "is_divisible_by_3": is_divisible_by_3,
    }


@router.post(
    "/divisibility",
    response_model=DivisibilityResponse,
    summary="Check divisibility (POST)",
)
def check_divisibility_post(request: NumberRequest, db: Session = Depends(get_db)):
    """
    Check if a number is divisible by 2 and by 3 using POST request.

    Returns a JSON response with the number and booleans indicating if it's divisible by 2 and by 3.
    """
    is_divisible_by_2 = request.number % 2 == 0
    is_divisible_by_3 = request.number % 3 == 0

    # Log the check in the database
    number_check = NumberCheck(
        number=request.number,
        is_divisible_by_2=is_divisible_by_2,
        is_divisible_by_3=is_divisible_by_3,
    )
    db.add(number_check)
    db.commit()
    db.refresh(number_check)

    return {
        "number": request.number,
        "is_divisible_by_2": is_divisible_by_2,
        "is_divisible_by_3": is_divisible_by_3,
    }


@router.get(
    "/history", response_model=List[NumberCheckResponse], summary="Check history"
)
def get_check_history(db: Session = Depends(get_db)):
    """
    Get the history of number divisibility checks.

    Returns a list of all number checks.
    """
    return db.query(NumberCheck).all()


@router.get(
    "/divisibility/by3/{number}",
    response_model=DivisibilityResponse,
    summary="Check divisibility by 3 (GET)",
)
def check_divisibility_by3(
    number: int = PathParam(..., description="The number to check divisibility for"),
    db: Session = Depends(get_db),
):
    """
    Check if a number is divisible by 3.

    Returns a JSON response with the number and booleans indicating if it's divisible by 2 and by 3.
    """
    is_divisible_by_2 = number % 2 == 0
    is_divisible_by_3 = number % 3 == 0

    # Log the check in the database
    number_check = NumberCheck(
        number=number,
        is_divisible_by_2=is_divisible_by_2,
        is_divisible_by_3=is_divisible_by_3,
    )
    db.add(number_check)
    db.commit()
    db.refresh(number_check)

    return {
        "number": number,
        "is_divisible_by_2": is_divisible_by_2,
        "is_divisible_by_3": is_divisible_by_3,
    }


@router.post(
    "/divisibility/by3",
    response_model=DivisibilityResponse,
    summary="Check divisibility by 3 (POST)",
)
def check_divisibility_by3_post(request: NumberRequest, db: Session = Depends(get_db)):
    """
    Check if a number is divisible by 3 using POST request.

    Returns a JSON response with the number and booleans indicating if it's divisible by 2 and by 3.
    """
    is_divisible_by_2 = request.number % 2 == 0
    is_divisible_by_3 = request.number % 3 == 0

    # Log the check in the database
    number_check = NumberCheck(
        number=request.number,
        is_divisible_by_2=is_divisible_by_2,
        is_divisible_by_3=is_divisible_by_3,
    )
    db.add(number_check)
    db.commit()
    db.refresh(number_check)

    return {
        "number": request.number,
        "is_divisible_by_2": is_divisible_by_2,
        "is_divisible_by_3": is_divisible_by_3,
    }


@router.get("/health", summary="Health check")
def health_check():
    """
    Health check endpoint to verify the API is running.

    Returns a JSON response with status information.
    """
    return {
        "status": "healthy",
        "api_version": "1.0.0",
        "service": "Number Divisibility API",
    }