#=============================================================================
# FILE: vimshell_history.py
# AUTHOR: Shougo Matsushita <Shougo.Matsu at gmail.com>
# License: MIT license  {{{
#     Permission is hereby granted, free of charge, to any person obtaining
#     a copy of this software and associated documentation files (the
#     "Software"), to deal in the Software without restriction, including
#     without limitation the rights to use, copy, modify, merge, publish,
#     distribute, sublicense, and/or sell copies of the Software, and to
#     permit persons to whom the Software is furnished to do so, subject to
#     the following conditions:
#
#     The above copyright notice and this permission notice shall be included
#     in all copies or substantial portions of the Software.
#
#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
#     OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
#     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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#     TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
#     SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#=============================================================================

import re
import deoplete.util

from .base import Base

class Source(Base):
    def __init__(self, vim):
        Base.__init__(self, vim)

        self.name = 'vimshell_history'
        self.mark = '[history]'
        self.filetypes = ['vimshell']
        self.is_bytepos = True
        self.rank = 500
        self.max_pattern_length = -1

    def get_complete_position(self, context):
        if not self.vim.call('vimshell#check_prompt'):
            return -1
        return self.vim.call('vimshell#get_prompt_length')

    def gather_candidates(self, context):
        return self.vim.call('vimshell#history#read')