from fastapi import APIRouter, Depends, Query
from sqlalchemy import text
from sqlalchemy.orm import Session

from core_domain import ServiceHealth
from app.application.services import RuntimeApplicationService
from app.db.session import get_db
from app.domain.repositories import NodeRunRepository, WorkflowRunRepository
from app.schemas.run import RunBootstrapResponse, RunCreateRequest, NodeRunResponse, WorkflowRunResponse

router = APIRouter()


def get_runtime_application_service(db: Session = Depends(get_db)) -> RuntimeApplicationService:
    return RuntimeApplicationService(
        workflow_run_repository=WorkflowRunRepository(db),
        node_run_repository=NodeRunRepository(db),
    )


@router.get("/health", response_model=ServiceHealth)
def health_check(db: Session = Depends(get_db)) -> ServiceHealth:
    db.execute(text("SELECT 1"))
    return ServiceHealth(service="runtime-service", status="ok", database="ok")


@router.post("/runs", response_model=RunBootstrapResponse)
def create_run(
    payload: RunCreateRequest,
    service: RuntimeApplicationService = Depends(get_runtime_application_service),
) -> RunBootstrapResponse:
    workflow_run, initial_node = service.create_run(payload)
    return RunBootstrapResponse(
        run=WorkflowRunResponse.from_entity(workflow_run),
        initial_node=NodeRunResponse.from_entity(initial_node) if initial_node else None,
    )


@router.get("/runs", response_model=list[WorkflowRunResponse])
def list_runs(
    tenant_id: str = Query(...),
    session_id: str | None = Query(default=None),
    service: RuntimeApplicationService = Depends(get_runtime_application_service),
) -> list[WorkflowRunResponse]:
    return [
        WorkflowRunResponse.from_entity(item)
        for item in service.list_runs(tenant_id=tenant_id, session_id=session_id)
    ]


@router.get("/node-runs", response_model=list[NodeRunResponse])
def list_node_runs(
    tenant_id: str = Query(...),
    run_id: str = Query(...),
    service: RuntimeApplicationService = Depends(get_runtime_application_service),
) -> list[NodeRunResponse]:
    return [
        NodeRunResponse.from_entity(item)
        for item in service.list_node_runs(tenant_id=tenant_id, run_id=run_id)
    ]