from __future__ import annotations

import argparse
import json
from time import sleep

from app.db.bootstrap import create_all_tables
from app.db.models import CampaignJob, JobQueueStatus, JobSendStatus
from app.db.session import SessionLocal
from app.mailer.sending.jobs import append_sent_for_job, send_campaign_job
from app.security.api_keys import authenticate_api_key
from app.settings import settings


def main() -> None:
    parser = argparse.ArgumentParser(description="Process queued campaign jobs directly, without a Celery worker.")
    parser.add_argument("--campaign-id", required=True)
    parser.add_argument("--api-key", default=settings.dev_bootstrap_api_key)
    parser.add_argument("--limit", type=int, default=0, help="Maximum jobs to process; 0 means all queued jobs")
    parser.add_argument("--dry-run", action="store_true", help="Validate/send path without SMTP delivery or status mutation to SENT")
    parser.add_argument("--no-rate-limit", action="store_true")
    parser.add_argument("--append-sent", action="store_true", help="After successful SMTP delivery, immediately run IMAP append-to-Sent in this CLI process")
    parser.add_argument("--json", action="store_true")
    args = parser.parse_args()

    create_all_tables()
    results = []
    with SessionLocal() as session:
        api_key = authenticate_api_key(session, args.api_key)
        if not api_key:
            raise SystemExit("Invalid API key")
        query = (
            session.query(CampaignJob)
            .filter(
                CampaignJob.tenant_id == api_key.tenant_id,
                CampaignJob.campaign_id == args.campaign_id,
                CampaignJob.queue_status == JobQueueStatus.QUEUED.value,
                CampaignJob.send_status.in_([JobSendStatus.QUEUED.value, JobSendStatus.FAILED_TEMPORARY.value]),
            )
            .order_by(CampaignJob.entry_index.asc())
        )
        if args.limit > 0:
            query = query.limit(args.limit)
        jobs = query.all()
        for job in jobs:
            try:
                result = send_campaign_job(session, job_id=job.id, dry_run=args.dry_run, use_rate_limit=not args.no_rate_limit)
                result_dict = result.as_dict()
                if args.append_sent and result.status == "sent":
                    append_result = append_sent_for_job(session, job_id=job.id, dry_run=args.dry_run)
                    result_dict["imap_append"] = append_result.as_dict()
                results.append(result_dict)
                if not args.json:
                    line = f"{job.entry_index}: {result.status} ({job.recipient_email})"
                    if "imap_append" in result_dict:
                        line += f"; IMAP: {result_dict['imap_append']['status']}"
                    print(line)
            except Exception as exc:
                results.append({"job_id": job.id, "status": "error", "error": str(exc)})
                if not args.json:
                    print(f"{job.entry_index}: ERROR {exc} ({job.recipient_email})")
                # Continue with the next job; individual attempts/statuses are recorded.
                sleep(0.1)
        if args.json:
            print(json.dumps({"processed": len(results), "results": results}, indent=2))
        elif not jobs:
            print("No queued jobs found")


if __name__ == "__main__":
    main()