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from airflow.hooks.base import BaseHook
from azure.mgmt.containerinstance.models import AzureFileVolume, Volume


class AzureContainerVolumeHook(BaseHook):
    """
    A hook which wraps an Azure Volume.

    :param wasb_conn_id: connection id of a Azure storage account of
        which file shares should be mounted
    :type wasb_conn_id: str
    """

    def __init__(self, wasb_conn_id: str = "wasb_default") -> None:
        super().__init__()
        self.conn_id = wasb_conn_id

    def get_storagekey(self) -> str:
        """Get Azure File Volume storage key"""
        conn = self.get_connection(self.conn_id)
        service_options = conn.extra_dejson

        if "connection_string" in service_options:
            for keyvalue in service_options["connection_string"].split(";"):
                key, value = keyvalue.split("=", 1)
                if key == "AccountKey":
                    return value
        return conn.password

    def get_file_volume(
        self,
        mount_name: str,
        share_name: str,
        storage_account_name: str,
        read_only: bool = False,
    ) -> Volume:
        """Get Azure File Volume"""
        return Volume(
            name=mount_name,
            azure_file=AzureFileVolume(
                share_name=share_name,
                storage_account_name=storage_account_name,
                read_only=read_only,
                storage_account_key=self.get_storagekey(),
            ),
        )