# -*- coding: utf-8 -*-
from app.visa_free_config_fetchers.base_fetcher import BaseFetcher

class BLSFetcher(BaseFetcher):
    def __init__(self):
        super(BLSFetcher, self).__init__("bls")

    def fetch_free_config(self, origin, target, visa_type, vac_code=None):
        origin_clean = origin.lower().strip()
        target_clean = target.lower().strip()
        vac_clean = (vac_code or "").lower().strip()
        visa_clean = visa_type.lower().strip()

        missions = self.metadata.get("missions", {})
        mission_key = "{}_{}".format(origin_clean, target_clean)
        mission_data = missions.get(mission_key, {})

        free_config = {
            "domain": mission_data.get("domain", ""),
            "ocr_model": mission_data.get("ocr_model", "bls_v1"),
            "apt_configs": {}
        }

        vacs = self.metadata.get("vacs", {})
        vac_key = "{}_{}_{}_{}".format(origin_clean, target_clean, vac_clean, visa_clean)
        vac_info = vacs.get(vac_key, {})

        if not vac_info and vac_clean:
            for k, v in vacs.items():
                if k.startswith("{}_{}_{}".format(origin_clean, target_clean, vac_clean)):
                    vac_info = v
                    break

        if vac_info or vac_clean:
            routing_key = "slot.{}.{}.{}".format(vac_clean, target_clean, visa_clean)
            free_config["apt_configs"][routing_key] = vac_info

        return free_config