# pylint: disable=C0111,R0903

"""Print the branch and git status for the
currently focused window.

Requires:
    * xcwd
    * Python module 'pygit2'
"""

import os
import pygit2

import core.module
import core.widget

import util.cli

class Module(core.module.Module):
    def __init__(self, config):
        super().__init__(config, [])

        self.__error = False

    def hidden(self):
        return self.__error

    def update(self):
        state = {}
        new_widgets = []
        try:
            directory = util.cli.execute("xcwd").strip()
            directory = self.__get_git_root(directory)
            repo = pygit2.Repository(directory)

            new_widgets.append(core.widget.Widget(name='git.main', full_text=repo.head.shorthand))

            for filepath, flags in repo.status().items():
                if flags == pygit2.GIT_STATUS_WT_NEW or \
                    flags == pygit2.GIT_STATUS_INDEX_NEW:
                    state['new'] = True
                if flags == pygit2.GIT_STATUS_WT_DELETED or \
                    flags == pygit2.GIT_STATUS_INDEX_DELETED:
                    state['deleted'] = True
                if flags == pygit2.GIT_STATUS_WT_MODIFIED or \
                    flags == pygit2.GIT_STATUS_INDEX_MODIFIED:
                    state['modified'] = True
            self.__error = False
            if 'new' in state:
                new_widgets.append(core.widget.Widget(name='git.new'))
            if 'modified' in state:
                new_widgets.append(core.widget.Widget(name='git.modified'))
            if 'deleted' in state:
                new_widgets.append(core.widget.Widget(name='git.deleted'))

            self.widgets().clear()
            self.widget(new_widgets)
            
        except Exception as e:
            self.__error = True

    def state(self, widget):
        return widget.name.split('.')[1]

    def __get_git_root(self, directory):
        while len(directory) > 1:
            if os.path.exists(os.path.join(directory, ".git")):
                return directory
            directory = "/".join(directory.split("/")[0:-1])
        return "/" 

# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4