from __future__ import annotations
from typing import Literal, Optional, Dict, Any


class RouterAgent:
    """Simple router that decides the next step in the pipeline."""

    def route(self, payload: Dict[str, Any]) -> Literal["profile", "job", "resume", "cover", "review"]:
        # Basic heuristics based on provided payload
        if payload.get("cv_text") and not payload.get("profile"):
            return "profile"
        if payload.get("job_posting") and not payload.get("job_analysis"):
            return "job"
        if payload.get("profile") and payload.get("job_analysis") and not payload.get("resume_draft"):
            return "resume"
        if payload.get("resume_draft") and not payload.get("cover_letter_draft"):
            return "cover"
        return "review"