import os
import subprocess as sub
from system_repository import SystemRepository
from release_type import ReleaseType

class GitRepository():

    def __init__(self):
        self.latest_commit = None
        self.system_repository = SystemRepository()

    @classmethod
    def create_from_commit_string(cls, commit_string):
        inst = cls()
        inst.latest_commit = commit_string
        return inst

    def get_latest_commit(self):
        self.latest_commit = self.system_repository.run_checked('git', 'log', '--oneline', '--format="%s %b"', '-n' + '1')

    def get_release_type_from_latest_commit(self):
        if self.latest_commit is None:
            self.get_latest_commit()

        if ReleaseType.MAJOR.name in self.latest_commit.upper():
            return ReleaseType.MAJOR
        elif ReleaseType.MINOR.name in self.latest_commit.upper():
            return ReleaseType.MINOR
        elif ReleaseType.PATCH.name in self.latest_commit.upper():
            return ReleaseType.PATCH
        elif ReleaseType.SNAPSHOT.name in self.latest_commit.upper():
            return ReleaseType.SNAPSHOT
        else:
            return None