from __future__ import annotations

import os
from datetime import datetime
from zoneinfo import ZoneInfo

from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException

from jobs.daily_pipeline import run_pipeline
from jobs.resolve_predictions import run_resolution_job
from api.auth import require_pipeline_guid

router = APIRouter(prefix="/scheduler", tags=["scheduler"])

IST = ZoneInfo("Asia/Kolkata")


@router.get("/status")
def scheduler_status():
    return {
        "timezone": "Asia/Kolkata",
        "scheduled_time": "16:00",
        "pipeline": [
            "market-data",
            "prediction",
            "resolution",
            "metrics",
            "retrain-check",
        ],
        "current_time_ist": datetime.now(IST).isoformat(),
    }


@router.post("/run-now", dependencies=[Depends(require_pipeline_guid)])
def run_now(background_tasks: BackgroundTasks):
    if os.getenv("ALLOW_MANUAL_PIPELINE", "false").lower() != "true":
        raise HTTPException(
            status_code=403,
            detail="Manual pipeline execution is disabled.",
        )

    background_tasks.add_task(run_pipeline)

    return {
        "status": "started",
        "message": "Daily production pipeline queued.",
        "order": [
            "market-data",
            "prediction",
            "resolution",
            "metrics",
            "retrain-check",
        ],
    }


@router.post("/resolve-now", dependencies=[Depends(require_pipeline_guid)])
def resolve_now(background_tasks: BackgroundTasks):
    """Queue the locked prediction-resolution job without running the pipeline."""
    background_tasks.add_task(run_resolution_job)
    return {
        "status": "started",
        "message": "Prediction resolution queued.",
    }