from typing import Any

from fastapi import APIRouter, Body, Depends
from sqlalchemy.orm import Session

from app.api.schemas import AttributeDefinitionIn, page, parse_page
from app.domain.serialize import jsonable
from app.errors import AppError
from app.persistence.db import get_session
from app.persistence.repositories import CatalogRepository
from app.services.ingestion_service import IngestionService

router = APIRouter(prefix="/api/v1")


@router.post("/attribute-definitions", status_code=201)
def create_attribute_definition(payload: AttributeDefinitionIn, session: Session = Depends(get_session)):
    definition = IngestionService(session).create_definition(payload.model_dump())
    return jsonable(definition.__dict__)


@router.get("/attribute-definitions")
def list_attribute_definitions(limit: int = 50, offset: int = 0, session: Session = Depends(get_session)):
    limit, offset = parse_page(limit, offset)
    items, total = CatalogRepository(session).list_definitions(limit, offset)
    return page([jsonable(item.__dict__) for item in items], limit, offset, total)


@router.get("/sources")
def list_sources(session: Session = Depends(get_session)):
    items = CatalogRepository(session).list_sources()
    return {
        "items": [{"id": item.id, "name": item.name, "adapter_type": item.adapter_type} for item in items],
        "limit": len(items),
        "offset": 0,
        "total": len(items),
    }


@router.get("/scoring-models/{version}")
def get_scoring_model(version: str, session: Session = Depends(get_session)):
    model = CatalogRepository(session).get_scoring_model(version)
    if model is None:
        raise AppError(404, "NOT_FOUND", "scoring model not found", {"version": version})
    return {
        "version": model.version,
        "algorithm_id": model.algorithm_id,
        "definition": model.definition,
        "definition_hash": model.definition_hash,
    }


@router.post("/profiles", status_code=201)
def create_profile(payload: dict[str, Any] = Body(...), session: Session = Depends(get_session)):
    if not isinstance(payload, dict):
        raise AppError(422, "PROFILE_INVALID", "profile must be an object")
    row = IngestionService(session).create_profile(payload)
    return {
        "id": row.id,
        "version": row.version,
        "name": row.name,
        "category": row.category,
        "scoring_version": row.scoring_version,
        "definition": row.definition,
        "definition_hash": row.definition_hash,
        "created_at": row.created_at,
    }


@router.get("/profiles")
def list_profiles(limit: int = 50, offset: int = 0, session: Session = Depends(get_session)):
    limit, offset = parse_page(limit, offset)
    items, total = CatalogRepository(session).list_profiles(limit, offset)
    return page(
        [
            {
                "id": row.id,
                "version": row.version,
                "name": row.name,
                "category": row.category,
                "scoring_version": row.scoring_version,
                "definition_hash": row.definition_hash,
                "created_at": row.created_at,
            }
            for row in items
        ],
        limit,
        offset,
        total,
    )


@router.get("/profiles/{profile_id}")
def get_profile(profile_id: str, version: int | None = None, session: Session = Depends(get_session)):
    if version is None:
        raise AppError(422, "VERSION_REQUIRED", "query parameter version is required")
    profile = CatalogRepository(session).get_profile(profile_id, version)
    if profile is None:
        raise AppError(404, "NOT_FOUND", "profile version not found")
    return profile.definition