#
# (c) 2020 Red Hat Inc.
#
# (c) 2020 Dell Inc.
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
#
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

DOCUMENTATION = """
---
name: sonic
short_description: Use sonic cliconf to run command on Dell OS10 platform
description:
  - This sonic plugin provides low level abstraction apis for
    sending and receiving CLI commands from Dell OS10 network devices.
"""

import json

from itertools import chain

from ansible.errors import AnsibleConnectionFailure
from ansible.module_utils._text import to_bytes, to_text
from ansible.module_utils.common._collections_compat import Mapping
from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import to_list
from ansible.plugins.cliconf import CliconfBase, enable_mode


class Cliconf(CliconfBase):

    def get_device_info(self):
        device_info = {}
        device_info['network_os'] = 'sonic'
        return device_info

    @enable_mode
    def edit_config(self, command):
        response = []
        self.send_command("configure terminal")
        for cmd in to_list(command):
            if isinstance(cmd, dict):
                resp = self.get(command=cmd["command"], prompt=cmd["prompt"], answer=cmd["answer"])
                response.append(resp)
            else:
                response.append(self.send_command(to_bytes(cmd)))
        self.send_command("end")
        return response

    @enable_mode
    def get_config(self, source="running", flags=None, format=None):
        if source not in ("running", "startup"):
            raise ValueError(
                "fetching configuration from %s is not supported" % source
            )
        if not flags:
            flags = []
        if source == "running":
            cmd = "show running-config "
        else:
            cmd = "show startup-config "

        cmd += " ".join(to_list(flags))
        cmd = cmd.strip()
        return self.send_command(cmd)

    def get(self, command, prompt=None, answer=None, sendonly=False, newline=True, check_all=False):
        return self.send_command(command=command, prompt=prompt, answer=answer, sendonly=sendonly, newline=newline, check_all=check_all)

    def get_capabilities(self):
        result = super(Cliconf, self).get_capabilities()
        return json.dumps(result)

    def run_commands(self, commands=None, check_rc=True):
        if commands is None:
            raise ValueError("'commands' value is required")

        responses = list()
        for cmd in to_list(commands):
            if not isinstance(cmd, Mapping):
                cmd = {'command': cmd}

            output = cmd.pop('output', None)
            if output:
                raise ValueError("'output' value %s is not supported for run_commands" % output)

            try:
                out = self.send_command(**cmd)
            except AnsibleConnectionFailure as e:
                if check_rc:
                    raise
                out = getattr(e, 'err', to_text(e))

            responses.append(out)

        return responses

    def set_cli_prompt_context(self):
        """
        Make sure we are in the operational cli mode
        :return: None
        """
        if self._connection.connected:
            self._update_cli_prompt_context(config_context=')#')