#!/usr/bin/python2

from subprocess import check_output
import json
import sys
import os.path

COLLECTOR_VERSION_KEY = "collector_version"
COLLECTOR_VERSION = 1

def execWebAPI(api, version, method, **kwargs):
    cmd = ["/usr/syno/bin/synowebapi", "--exec"]
    cmd.append("api=" + api)
    cmd.append("version=" + str(version))
    cmd.append("method=" + method)
    for key, val in kwargs.items():
        cmd.append('{0}={1}'.format(key, json.dumps(val)))
    try:
        with open('/dev/null', 'w') as null_fp:
            raw_resp = check_output(cmd, stderr=null_fp)
        return json.loads(raw_resp)
    except Exception as e:
        return False

def keystore_explore():
    store_list = []

    j_data = execWebAPI('SYNO.Core.Share.KeyManager.Store', 1, 'explore')
    if not j_data:
        return False

    try:
        store_list = j_data['data']['stores']
    except Exception as e:
        pass

    return (0 != len(store_list))

def keystore_get():
    output = {
        "enable": False,
        "reject_after_boot": False
    }

    # function enable check
    if keystore_explore():
        output['enable'] = True
    else:
        return output

    j_data = execWebAPI('SYNO.Core.Share.KeyManager.Store', 1, 'get')
    if not j_data:
        return output

    try:
        output['reject_after_boot'] = j_data['data']['eject_after_boot']
    except Exception as e:
        pass

    return output

def keys_get():
    output = {
        "total_count": 0,
        "cypher_passphrase": 0,
        "cypher_machinekey": 0,
        "mount_on_boot": 0
    }

    j_data = execWebAPI('SYNO.Core.Share.KeyManager.Key', 1, 'list')
    if not j_data:
        return output

    try:
        keys = j_data['data']['keys']

        for k in keys:
            if k['encrypt_type'] == 1:
                output['cypher_machinekey'] += 1
            else:
                output['cypher_passphrase'] += 1

            if k['auto_mount']:
                output['mount_on_boot'] += 1

            output['total_count'] += 1
    except Exception as e:
        pass

    return output

def main():
    ''' Result output
    {
        "keystore":
        {
            "enable": Boolean,
            "reject_after_boot": Boolean
        },
        "keys":
        {
            "total_count": Int,
            "cypher_passphrase": Int,
            "cypher_machinekey": Int,
            "mount_on_boot": Int
        }
        COLLECTOR_VERSION_KEY: COLLECTOR_VERSION
    }
    '''
    result = {
        COLLECTOR_VERSION_KEY: COLLECTOR_VERSION,
        'keystore': {
            "enable": False,
            "reject_after_boot": False
        },
        'keys': {
            "total_count": 0,
            "cypher_passphrase": 0,
            "cypher_machinekey": 0,
            "mount_on_boot": 0
        }
    }

    result['keystore'] = keystore_get()
    result['keys'] = keys_get()
    sys.stdout.write(json.dumps(result))

if __name__ == '__main__':
    main()