import pathlib

from .image import image
from .exception import directory_image_exception

class directory_image:
    def __init__(self, target: pathlib.Path, thumbnail: int = 400) -> None:
        self.__target = target
        self.__thumbnail_size = thumbnail

        if not self.__target.is_dir():
            content = "Directory for image hosting: \""
            content = content + str(target) + "\"."

            raise directory_image_exception(content)
    
    @property
    def thumbnail_size(self) -> int:
        return self.__thumbnail_size

    @property
    def target(self) -> pathlib.Path:
        return self.__target

    def __name_full(self, image_id: int) -> str:
        return "full_" + str(image_id) + "_.png"

    def __name_thumbnail(self, image_id: int) -> str:
        return "thumbnail_" + str(image_id) + "_.webp"

    def __full_path(self, image_id: int) -> pathlib.Path:
        return self.target / pathlib.Path(self.__full_name(image_id))

    def __thumbnail_path(self, image_id: int) -> pathlib.Path:
        return self.target / pathlib.Path(self.__thumbnail_name(image_id))

    def store(self, coded: str, image_id: int) -> None:
        full = self.__full_path(image_id)
        thumbnail = self.__full_path(image_id)
        
        image(coded, self.thumbnail_size) \
        .save_full(full) \
        .save_thumbnail(thumbnail)