import pathlib

class DiskPaths:
    STORAGE_HOSTS_PATH = pathlib.Path("/var/opt/instant-workstation/storage-hosts")

    def __init__(self, request):
        self.persistence_type = request['persistence_type']
        self.storage_host = request['storage_host']
        self.workstation = request['workstation']
        self.user_id = request['user_id']

    @property
    def nvram_filename(self):
        return f"{self.workstation_key}_NVRAM.img"

    @property
    def nvram_path(self):
        return self.storage_host_path / 'firmware' / self.nvram_filename

    @property
    def nvram_target_filename(self):
        return f"{self.user_id}_{self.nvram_filename}"

    @property
    def nvram_target_path(self):
        return self.storage_host_path / self.persistence_type / self.nvram_target_filename

    @property
    def storage_host_path(self):
        return self.STORAGE_HOSTS_PATH / self.storage_host

    @property
    def target_filename(self):
        return f"{self.user_id}_{self.template_filename}"

    @property
    def target_path(self):
        return self.storage_host_path / self.persistence_type / self.target_filename

    @property
    def template_filename(self): 
        return f"{self.workstation_key}.qcow2"

    @property
    def template_path(self):
        return self.storage_host_path / 'template' / self.template_filename

    @property
    def workstation_key(self):
        return (
            f"{self.workstation['name']}_"
            f"{self.workstation['version']}_"
            f"{self.workstation['cpu']}_"
            f"{self.workstation['bitness']}_"
            f"{self.workstation['endianness']}"
        )