from typing import Optional, List, Dict

from .constants import *
from ....format.config import Config
from ....format.git_version_info import GitVersionInfo
from ...build.enums import *


class FileVersionInfo(Config):
    def __init__(self):
        self._relative_name: Optional[str] = None
        self._file_hash: Optional[str] = None
        self._sources_hash: Optional[str] = None

        #  Meta properties actually not needed for build itself
        self._git_version_info: Optional[GitVersionInfo] = None
        self._build_time: Optional[str] = None

    def set_from_json(self, content: Optional[Dict]):
        filled_content = self._fill_keys(content)
        self._relative_name = filled_content[JSON_RELATIVE_NAME]
        self._file_hash = filled_content[JSON_FILE_HASH]
        self._sources_hash = filled_content[JSON_SOURCES_HASH]
        self._build_time = filled_content[JSON_BUILD_TIME]
        self._git_version_info = GitVersionInfo.from_json(
            filled_content[JSON_GIT_VERSION_INFO]
        )

    def to_json(self) -> Dict:
        return {
            JSON_RELATIVE_NAME: self._relative_name,
            JSON_FILE_HASH: self._file_hash,
            JSON_SOURCES_HASH: self._sources_hash,
            JSON_BUILD_TIME: self._build_time,
            JSON_GIT_VERSION_INFO: self.git_version_info.to_json()
        }

    @property
    def file_hash(self) -> str:
        if self._file_hash is None:
            return DEFAULT_HASH
        else:
            return self._file_hash

    @file_hash.setter
    def file_hash(self, file_hash: str):
        self._file_hash = file_hash

    @property
    def sources_hash(self) -> str:
        if self._sources_hash is None:
            return DEFAULT_HASH
        else:
            return self._sources_hash

    @sources_hash.setter
    def sources_hash(self, sources_hash: str):
        self._sources_hash = sources_hash

    @property
    def relative_name(self) -> str:
        if self._relative_name is None:
            return NO_RELATIVE_NAME
        else:
            return self._relative_name

    @relative_name.setter
    def relative_name(self, relative_name: str):
        self._relative_name = relative_name

    @property
    def git_version_info(self) -> GitVersionInfo:
        if self._git_version_info is None:
            return GitVersionInfo()
        else:
            return self._git_version_info

    @git_version_info.setter
    def git_version_info(self, git_version_info: GitVersionInfo):
        self._git_version_info = git_version_info

    @property
    def build_time(self) -> str:
        if self._build_time is None:
            return NO_BUILD_TIME
        else:
            return self._build_time

    @build_time.setter
    def build_time(self, build_time: str):
        self._build_time = build_time


class VersionInfo(Config):
    def __init__(self):
        self._pytex_dir_type: Optional[PyTeXRootDirType] = None
        self._files: Optional[List[FileVersionInfo]] = None

    def set_from_json(self, content: Optional[Dict]):
        filled_content: Dict = self._fill_keys(content)
        self._pytex_dir_type = None  # TODO
        self._files = [
            FileVersionInfo.from_json(entry)
            for entry in filled_content[JSON_FILE_VERSIONS]
        ]

    def to_json(self) -> Dict:
        return {
            JSON_FILE_VERSIONS: [
                file_version_info.to_json()
                for file_version_info in self.files
            ]
        }

    @property
    def pytex_dir_type(self) -> PyTeXRootDirType:
        if self._pytex_dir_type is None:
            return PyTeXRootDirType.PYTEX_SOURCE
        else:
            return self._pytex_dir_type

    @pytex_dir_type.setter
    def pytex_dir_type(self, pytex_dir_type: PyTeXRootDirType):
        self._pytex_dir_type = pytex_dir_type

    @property
    def files(self) -> List[FileVersionInfo]:
        if self._files is None:
            return []
        else:
            return self._files

    @files.setter
    def files(self, files: List[FileVersionInfo]):
        self._files = files