def main():
    argument_spec = mso_argument_spec()
    argument_spec.update(
        schema=dict(type='str', required=True),
        site=dict(type='str', required=True),
        template=dict(type='str', required=True),
        vrf=dict(type='str', required=True),
        region=dict(type='str', required=True),
        cidr=dict(type='str', required=True),
        subnet=dict(type='str', aliases=[
            'ip'
        ]),  # This parameter is not required for querying all objects
        zone=dict(type='str', aliases=['name']),
        state=dict(type='str',
                   default='present',
                   choices=['absent', 'present', 'query']),
    )

    module = AnsibleModule(
        argument_spec=argument_spec,
        supports_check_mode=True,
        required_if=[
            ['state', 'absent', ['subnet']],
            ['state', 'present', ['subnet', 'zone']],
        ],
    )

    schema = module.params.get('schema')
    site = module.params.get('site')
    template = module.params.get('template')
    vrf = module.params.get('vrf')
    region = module.params.get('region')
    cidr = module.params.get('cidr')
    subnet = module.params.get('subnet')
    zone = module.params.get('zone')
    state = module.params.get('state')

    mso = MSOModule(module)

    # Get schema_id
    schema_obj = mso.get_obj('schemas', displayName=schema)
    if not schema_obj:
        mso.fail_json(
            msg="Provided schema '{0}' does not exist".format(schema))

    schema_path = 'schemas/{id}'.format(**schema_obj)
    schema_id = schema_obj.get('id')

    # Get site
    site_id = mso.lookup_site(site)

    # Get site_idx
    sites = [(s.get('siteId'), s.get('templateName'))
             for s in schema_obj.get('sites')]
    if (site_id, template) not in sites:
        mso.fail_json(
            msg=
            "Provided site/template '{0}-{1}' does not exist. Existing sites/templates: {2}"
            .format(site, template, ', '.join(sites)))

    # Schema-access uses indexes
    site_idx = sites.index((site_id, template))
    # Path-based access uses site_id-template
    site_template = '{0}-{1}'.format(site_id, template)

    # Get VRF
    vrf_ref = mso.vrf_ref(schema_id=schema_id, template=template, vrf=vrf)
    vrfs = [v.get('vrfRef') for v in schema_obj.get('sites')[site_idx]['vrfs']]
    if vrf_ref not in vrfs:
        mso.fail_json(
            msg="Provided vrf '{0}' does not exist. Existing vrfs: {1}".format(
                vrf, ', '.join(vrfs)))
    vrf_idx = vrfs.index(vrf_ref)

    # Get Region
    regions = [
        r.get('name')
        for r in schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx]['regions']
    ]
    if region not in regions:
        mso.fail_json(
            msg="Provided region '{0}' does not exist. Existing regions: {1}".
            format(region, ', '.join(regions)))
    region_idx = regions.index(region)

    # Get CIDR
    cidrs = [
        c.get('ip') for c in schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx]
        ['regions'][region_idx]['cidrs']
    ]
    if cidr not in cidrs:
        mso.fail_json(
            msg="Provided CIDR IP '{0}' does not exist. Existing CIDR IPs: {1}"
            .format(cidr, ', '.join(cidrs)))
    cidr_idx = cidrs.index(cidr)

    # Get Subnet
    subnets = [
        s.get('ip') for s in schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx]
        ['regions'][region_idx]['cidrs'][cidr_idx]['subnets']
    ]
    if subnet is not None and subnet in subnets:
        subnet_idx = subnets.index(subnet)
        # FIXME: Changes based on index are DANGEROUS
        subnet_path = '/sites/{0}/vrfs/{1}/regions/{2}/cidrs/{3}/subnets/{4}'.format(
            site_template, vrf, region, cidr_idx, subnet_idx)
        mso.existing = schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx][
            'regions'][region_idx]['cidrs'][cidr_idx]['subnets'][subnet_idx]

    if state == 'query':
        if subnet is None:
            mso.existing = schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx][
                'regions'][region_idx]['cidrs'][cidr_idx]['subnets']
        elif not mso.existing:
            mso.fail_json(msg="Subnet IP '{subnet}' not found".format(
                subnet=subnet))
        mso.exit_json()

    subnets_path = '/sites/{0}/vrfs/{1}/regions/{2}/cidrs/{3}/subnets'.format(
        site_template, vrf, region, cidr_idx)
    ops = []

    mso.previous = mso.existing
    if state == 'absent':
        if mso.existing:
            mso.sent = mso.existing = {}
            ops.append(dict(op='remove', path=subnet_path))

    elif state == 'present':

        payload = dict(
            ip=subnet,
            zone=zone,
        )

        mso.sanitize(payload, collate=True)

        if mso.existing:
            ops.append(dict(op='replace', path=subnet_path, value=mso.sent))
        else:
            ops.append(dict(op='add', path=subnets_path + '/-',
                            value=mso.sent))

        mso.existing = mso.proposed

    if not module.check_mode:
        mso.request(schema_path, method='PATCH', data=ops)

    mso.exit_json()
def main():
    argument_spec = mso_argument_spec()
    argument_spec.update(
        schema=dict(type='str', required=True),
        site=dict(type='str', required=True),
        template=dict(type='str', required=True),
        vrf=dict(type='str', required=True),
        region=dict(type='str', aliases=['name']),  # This parameter is not required for querying all objects
        state=dict(type='str', default='present', choices=['absent', 'present', 'query']),
    )

    module = AnsibleModule(
        argument_spec=argument_spec,
        supports_check_mode=True,
        required_if=[
            ['state', 'absent', ['region']],
            ['state', 'present', ['region']],
        ],
    )

    schema = module.params.get('schema')
    site = module.params.get('site')
    template = module.params.get('template')
    vrf = module.params.get('vrf')
    region = module.params.get('region')
    state = module.params.get('state')

    mso = MSOModule(module)

    # Get schema_id
    schema_obj = mso.get_obj('schemas', displayName=schema)
    if not schema_obj:
        mso.fail_json(msg="Provided schema '{0}' does not exist".format(schema))

    schema_path = 'schemas/{id}'.format(**schema_obj)
    schema_id = schema_obj.get('id')

    # Get site
    site_id = mso.lookup_site(site)

    # Get site_idx
    sites = [(s.get('siteId'), s.get('templateName')) for s in schema_obj.get('sites')]
    if (site_id, template) not in sites:
        mso.fail_json(msg="Provided site/template '{0}-{1}' does not exist. Existing sites/templates: {2}".format(site, template, ', '.join(sites)))

    # Schema-access uses indexes
    site_idx = sites.index((site_id, template))
    # Path-based access uses site_id-template
    site_template = '{0}-{1}'.format(site_id, template)

    # Get VRF
    vrf_ref = mso.vrf_ref(schema_id=schema_id, template=template, vrf=vrf)
    vrfs = [v.get('vrfRef') for v in schema_obj.get('sites')[site_idx]['vrfs']]
    if vrf_ref not in vrfs:
        mso.fail_json(msg="Provided vrf '{0}' does not exist. Existing vrfs: {1}".format(vrf, ', '.join(vrfs)))
    vrf_idx = vrfs.index(vrf_ref)

    # Get Region
    regions = [r.get('name') for r in schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx]['regions']]
    if region is not None and region in regions:
        region_idx = regions.index(region)
        region_path = '/sites/{0}/vrfs/{1}/regions/{2}'.format(site_template, vrf, region)
        mso.existing = schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx]['regions'][region_idx]

    if state == 'query':
        if region is None:
            mso.existing = schema_obj.get('sites')[site_idx]['vrfs'][vrf_idx]['regions']
        elif not mso.existing:
            mso.fail_json(msg="Region '{region}' not found".format(region=region))
        mso.exit_json()

    regions_path = '/sites/{0}/vrfs/{1}/regions'.format(site_template, vrf)
    ops = []

    mso.previous = mso.existing
    if state == 'absent':
        if mso.existing:
            mso.sent = mso.existing = {}
            ops.append(dict(op='remove', path=region_path))

    elif state == 'present':

        payload = dict(
            name=region,
        )

        mso.sanitize(payload, collate=True)

        if mso.existing:
            ops.append(dict(op='replace', path=region_path, value=mso.sent))
        else:
            ops.append(dict(op='add', path=regions_path + '/-', value=mso.sent))

        mso.existing = mso.proposed

    if not module.check_mode:
        mso.request(schema_path, method='PATCH', data=ops)

    mso.exit_json()