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

from app.application.services import TeamApplicationService, build_team_application_service
from app.bootstrap.settings import TeamServiceSettings
from app.db.session import get_db
from app.domain.repositories import (
    TeamDefinitionRepository,
    TeamRunRepository,
    TeamVersionRepository,
)
from app.schemas.team import (
    TeamCreateRequest,
    TeamResponse,
    TeamRunCreateRequest,
    TeamRunExecuteRequest,
    TeamRunExecuteResponse,
    TeamRunResponse,
    TeamRunStatusUpdateRequest,
    TeamStatusUpdateRequest,
    TeamVersionCreateRequest,
    TeamVersionResponse,
    TeamWorkerExecuteNextRequest,
    TeamWorkerExecuteNextResponse,
)

router = APIRouter()


def get_team_settings() -> TeamServiceSettings:
    return TeamServiceSettings()


def get_team_application_service(
    db: Session = Depends(get_db),
    settings: TeamServiceSettings = Depends(get_team_settings)) -> TeamApplicationService:
    return build_team_application_service(
        team_repository=TeamDefinitionRepository(db),
        team_version_repository=TeamVersionRepository(db),
        team_run_repository=TeamRunRepository(db),
        settings=settings)


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


@router.post("", response_model=TeamResponse)
def create_team(
    payload: TeamCreateRequest,
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamResponse:
    entity = service.create_team(payload)
    return TeamResponse.from_entity(entity)


@router.get("", response_model=list[TeamResponse])
def list_teams(
    service: TeamApplicationService = Depends(get_team_application_service)) -> list[TeamResponse]:
    return [TeamResponse.from_entity(item) for item in service.list_teams()]


@router.patch("/{team_id}/status", response_model=TeamResponse)
def update_team_status(
    team_id: str,
    payload: TeamStatusUpdateRequest,
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamResponse:
    entity = service.update_team_status(team_id=team_id, payload=payload)
    if entity is None:
        raise HTTPException(status_code=404, detail=f"team not found: {team_id}")
    return TeamResponse.from_entity(entity)


@router.post("/versions", response_model=TeamVersionResponse)
def create_team_version(
    payload: TeamVersionCreateRequest,
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamVersionResponse:
    try:
        entity = service.create_team_version(payload)
    except ValueError as exc:
        raise HTTPException(status_code=422, detail=str(exc)) from exc
    return TeamVersionResponse.from_entity(entity)


@router.get("/versions", response_model=list[TeamVersionResponse])
def list_team_versions(
    team_id: str = Query(...),
    service: TeamApplicationService = Depends(get_team_application_service)) -> list[TeamVersionResponse]:
    return [
        TeamVersionResponse.from_entity(item)
        for item in service.list_team_versions(team_id=team_id)
    ]


@router.post("/runs", response_model=TeamRunResponse)
def create_team_run(
    payload: TeamRunCreateRequest,
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamRunResponse:
    try:
        entity = service.create_team_run(payload)
    except ValueError as exc:
        raise HTTPException(status_code=422, detail=str(exc)) from exc
    return TeamRunResponse.from_entity(entity)


@router.get("/runs", response_model=list[TeamRunResponse])
def list_team_runs(
    team_id: str | None = Query(default=None),
    session_id: str | None = Query(default=None),
    service: TeamApplicationService = Depends(get_team_application_service)) -> list[TeamRunResponse]:
    return [
        TeamRunResponse.from_entity(item)
        for item in service.list_team_runs(
            team_id=team_id,
            session_id=session_id)
    ]


@router.post("/runs/{team_run_id}/status", response_model=TeamRunResponse)
def update_team_run_status(
    team_run_id: str,
    payload: TeamRunStatusUpdateRequest,
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamRunResponse:
    entity = service.update_team_run_status(team_run_id=team_run_id, payload=payload)
    if entity is None:
        raise HTTPException(status_code=404, detail=f"team_run not found: {team_run_id}")
    return TeamRunResponse.from_entity(entity)


@router.post("/runs/{team_run_id}/execute", response_model=TeamRunExecuteResponse)
def execute_team_run(
    team_run_id: str,
    payload: TeamRunExecuteRequest,
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamRunExecuteResponse:
    entity = service.execute_team_run(team_run_id=team_run_id, payload=payload)
    if entity is None:
        raise HTTPException(status_code=404, detail=f"team_run not found: {team_run_id}")
    output_json = entity.output_json or {}
    member_run_count = output_json.get("member_run_count")
    dry_run = output_json.get("dry_run")
    return TeamRunExecuteResponse(
        run=TeamRunResponse.from_entity(entity),
        member_run_count=member_run_count if isinstance(member_run_count, int) else 0,
        dry_run=dry_run if isinstance(dry_run, bool) else payload.dry_run)


@router.post("/workers/execute-next", response_model=TeamWorkerExecuteNextResponse)
def execute_next_worker_task(
    payload: TeamWorkerExecuteNextRequest,
    settings: TeamServiceSettings = Depends(get_team_settings),
    service: TeamApplicationService = Depends(get_team_application_service)) -> TeamWorkerExecuteNextResponse:
    result = service.execute_next_claimed_team_run(
        worker_key=payload.worker_key,
        lease_seconds=payload.lease_seconds or settings.worker_lease_seconds,
        dry_run=payload.dry_run if payload.dry_run is not None else settings.worker_dry_run)
    if result is None:
        raise HTTPException(status_code=404, detail="queued team_run not found")

    entity, released_lease_count = result
    output_json = entity.output_json or {}
    member_run_count = output_json.get("member_run_count")
    dry_run = output_json.get("dry_run")
    return TeamWorkerExecuteNextResponse(
        run=TeamRunResponse.from_entity(entity),
        member_run_count=member_run_count if isinstance(member_run_count, int) else 0,
        dry_run=dry_run if isinstance(dry_run, bool) else settings.worker_dry_run,
        released_lease_count=released_lease_count)