#!/usr/bin/python3
import json
import os
import sys


def migrate_common_lib(values):
    delete_keys = [
        'wgUDPPort', 'webUIPort', 'hostNetwork', 'cpuLimit', 'memLimit',
        'dnsConfig', 'environmentVariables', 'appVolumeMounts',
        'extraAppVolumeMounts', 'wgeasy', 'enableResourceLimits',
    ]

    values.update({
        # Migrate Network
        'wgNetwork': {
            'udpPort': values['wgUDPPort'],
            'webPort': values['webUIPort'],
            'hostNetwork': values['hostNetwork'],
        },
        # Migrate Resources
        'resources': {
            'limits': {
                'cpu': values.get('cpuLimit', '4000m'),
                'memory': values.get('memLimit', '8Gi'),
            }
        },
        # Migrate DNS
        'podOptions': {
            'dnsConfig': {
                'options': [
                    {'name': opt['name'], 'value': opt['value']}
                    for opt in values.get('dnsConfig', {}).get('options', [])
                ]
            }
        },
        # Migrate Config
        'wgConfig': {
            'host': values['wgeasy']['host'],
            'password': values['wgeasy'].get('password', ''),
            'keepAlive': values['wgeasy']['keep_alive'],
            'clientMTU': values['wgeasy']['client_mtu'],
            'clientAddressRange': values['wgeasy']['client_address_range'],
            'clientDNSServer': values['wgeasy']['client_dns_server'],
            'allowedIPs': values['wgeasy']['allowed_ips'],
            'additionalEnvs': values.get('environmentVariables', []),
        },
        # Migrate Storage
        'wgStorage': {
            'config': {
                'type': 'hostPath',
                'hostPathConfig': {
                    'hostPath': values['appVolumeMounts']['config']['hostPath']
                },
            } if values['appVolumeMounts']['config']['hostPathEnabled'] else {
                'type': 'ixVolume',
                'ixVolumeConfig': {
                    'datasetName': values['appVolumeMounts']['config']['datasetName'],
                },
            },
            'additionalStorages': [
                {
                    'type': 'hostPath',
                    'hostPathConfig': {'hostPath': e['hostPath']},
                    'mountPath': e['mountPath'],
                }
                for e in values.get('extraAppVolumeMounts', [])
            ],
        },
    })

    for k in delete_keys:
        values.pop(k, None)

    return values

def migrate(values):
    if not 'wgeasy' in values.keys():
        return values


    return migrate_common_lib(values)



if __name__ == '__main__':
    if len(sys.argv) != 2:
        exit(1)

    if os.path.exists(sys.argv[1]):
        with open(sys.argv[1], 'r') as f:
            print(json.dumps(migrate(json.loads(f.read()))))