# Copyright (C) 2020-2024 Soleta Networks <opengnsys@soleta.eu>
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the
# Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

import argparse

from cli.utils import *

class OgRepo():

    @staticmethod
    def list_repos(rest):
        res = rest.get('/repositories')
        if not res:
            return 1
        print_json(res.text)
        return 0

    @staticmethod
    def _add_repo(rest, parsed_args):
        payload = {
            'addr': parsed_args.ip,
            'name': parsed_args.name,
        }
        res = rest.post('/repository/add', payload=payload)
        if not res:
            return 1
        return 0

    @staticmethod
    def _add_repo_ip(rest, parsed_args):
        for ip in parsed_args.ip:
            if not check_address(ip):
                print(f'Invalid IP address: {ip}')
                return 1

        res = rest.get('/repositories')
        target_repo = None
        for repo in res.json()['repositories']:
            if repo['id'] == parsed_args.id:
                target_repo = repo
                break

        if not target_repo:
            print('Invalid repository id specified')
            return 1

        for ip in parsed_args.ip:
            if ip in target_repo['addr']:
                print(f'The repository already contains the address {ip}')
                return 1

        payload = {
            'id': parsed_args.id,
            'addr': target_repo['addr'] + parsed_args.ip,
            'name': target_repo['name'],
        }
        res = rest.post('/repository/update', payload=payload)
        if not res:
            return 1
        return 0

    @staticmethod
    def add_repo(rest, args):
        parser = argparse.ArgumentParser(prog='ogcli add repo')

        # Mutually exclusive group for adding new repo or adding address to existing repo
        group = parser.add_mutually_exclusive_group(required=True)
        group.add_argument('--name',
                           nargs='?',
                           help='name of the repository')
        group.add_argument('--id',
                           type=int,
                           help='repo id (list repos using "ogcli list repos")')
        parser.add_argument('--ip',
                            nargs='+',
                            required=True,
                            help='IP list separated by spaces')

        parsed_args = parser.parse_args(args)

        if parsed_args.name:
            OgRepo._add_repo(rest, parsed_args)
        elif parsed_args.id:
            OgRepo._add_repo_ip(rest, parsed_args)

    @staticmethod
    def update_repo(rest, args):
        parser = argparse.ArgumentParser(prog='ogcli update repo')
        parser.add_argument('--id',
                            type=int,
                            nargs='?',
                            required=True,
                            help='repo id (list repos using "ogcli list repos")')
        parser.add_argument('--ip',
                            nargs='+',
                            required=True,
                            help='IP list separated by spaces')
        parser.add_argument('--name',
                            nargs='?',
                            required=True,
                            help='name of the repository')
        parsed_args = parser.parse_args(args)
        payload = {
            'id': parsed_args.id,
            'addr': parsed_args.ip,
            'name': parsed_args.name,
        }

        res = rest.post('/repository/update', payload=payload)
        if not res:
            return 1
        return 0

    @staticmethod
    def _delete_repo_ip(rest, parsed_args):
        for ip in parsed_args.ip:
            if not check_address(ip):
                print(f'Invalid IP address: {ip}')
                return 1

        res = rest.get('/repositories')
        target_repo = None
        for repo in res.json()['repositories']:
            if repo['id'] == parsed_args.id:
                target_repo = repo
                break

        if not target_repo:
            print('Invalid repository id specified')
            return 1

        for ip in parsed_args.ip:
            if ip not in target_repo['addr']:
                print(f'Invalid address {ip}: The repository has the following IPs: {target_repo["addr"]}')
                return 1

            target_repo['addr'].remove(ip)

        payload = {
            'id': parsed_args.id,
            'addr': target_repo['addr'],
            'name': target_repo['name'],
        }
        res = rest.post('/repository/update', payload=payload)
        if not res:
            return 1
        return 0

    @staticmethod
    def _delete_repo(rest, parsed_args):
        payload = {'id': parsed_args.id}
        res = rest.post('/repository/delete', payload=payload)
        if not res:
            return 1
        return 0

    @staticmethod
    def delete_repo(rest, args):
        parser = argparse.ArgumentParser(prog='ogcli delete repo')

        parser.add_argument('--id',
                            type=int,
                            required=True,
                            help='repo id (list repos using "ogcli list repos")')

        # --ip is optional; if provided, the IP will be removed, otherwise,
        # the repo will be deleted
        parser.add_argument('--ip',
                            nargs='+',
                            help='IP address to remove from the repository')

        parsed_args = parser.parse_args(args)

        if parsed_args.ip:
            OgRepo._delete_repo_ip(rest, parsed_args)
        else:
            OgRepo._delete_repo(rest, parsed_args)

    @staticmethod
    def set_repo(rest, args):
        parser = argparse.ArgumentParser(prog='ogcli set repo')
        parser.add_argument('--id',
                            type=int,
                            nargs='?',
                            required=True,
                            help='repo id (list repos using "ogcli list repos")')
        group = parser.add_argument_group('clients', 'Target client arguments')
        group.add_argument('--room-id',
                           type=int,
                           action='append',
                           default=[],
                           required=False,
                           help='Clients from a given room id')
        group.add_argument('--client-ip',
                           action='append',
                           default=[],
                           required=False,
                           help='Any valid client ip address')
        parsed_args = parser.parse_args(args)

        res = rest.get('/scopes')
        scopes = res.json()
        ips = set()

        for room in parsed_args.room_id:
            room_scope = scope_lookup(room, 'room', scopes)
            ips.update(ips_in_scope(room_scope))
        for l in parsed_args.client_ip:
            ips.add(l)
        if not ips:
            print('No valid clients specified.')
            return 1

        payload = {'id': parsed_args.id, 'clients': list(ips)}
        res = rest.post('/client/repo', payload=payload)
        if not res:
            return 1
        return 0