#Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# FIXME Can we use the same test against BBSim and Hardware?

*** Settings ***
Documentation     Test various end-to-end scenarios
Suite Setup       Setup Suite
Test Setup        Setup
Test Teardown     Teardown
Suite Teardown    Teardown Suite
Library           Collections
Library           String
Library           OperatingSystem
Library           XML
Library           RequestsLibrary
Library           ../../libraries/DependencyLibrary.py
Resource          ../../libraries/onos.robot
Resource          ../../libraries/voltctl.robot
Resource          ../../libraries/utils.robot
Resource          ../../libraries/k8s.robot
Resource          ../../variables/variables.robot

*** Variables ***
${POD_NAME}       flex-ocp-cord
${KUBERNETES_CONF}    ${KUBERNETES_CONFIGS_DIR}/${POD_NAME}.conf
${KUBERNETES_CONFIGS_DIR}    ~/pod-configs/kubernetes-configs
#${KUBERNETES_CONFIGS_DIR}    ${KUBERNETES_CONFIGS_DIR}/${POD_NAME}.conf
${KUBERNETES_YAML}    ${KUBERNETES_CONFIGS_DIR}/${POD_NAME}.yml
${HELM_CHARTS_DIR}    ~/helm-charts
${VOLTHA_POD_NUM}    8
${NAMESPACE}   voltha
# For below variable value, using deployment name as using grep for
# parsing radius pod name, we can also use full radius pod name
${RESTART_POD_NAME}   radius
${timeout}        60s
${of_id}          0
${logical_id}     0
${has_dataplane}    True
${external_libs}    True
${teardown_device}    False

*** Test Cases ***
Sanity E2E Test for OLT/ONU on POD
    [Documentation]    Validates E2E Ping Connectivity and object states for the given scenario:
    ...    Validate successful authentication/DHCP/E2E ping for the tech profile that is used
    [Tags]    sanity    test1
    [Teardown]    NONE
    ${of_id}=    Wait Until Keyword Succeeds    ${timeout}    15s    Validate OLT Device in ONOS    ${olt_serial_number}
    Set Global Variable    ${of_id}

    FOR    ${I}    IN RANGE    0    ${num_onus}
        ${src}=    Set Variable    ${hosts.src[${I}]}
        ${dst}=    Set Variable    ${hosts.dst[${I}]}

        Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device        ENABLED    ACTIVE    REACHABLE
        ...    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed

        ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
        ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
        ...    ${of_id}
        Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${k8s_node_ip}
        ...    ${ONOS_SSH_PORT}    ${onu_port}
        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate Authentication    True
        ...    ${src['dp_iface_name']}    wpa_supplicant.conf    ${src['ip']}    ${src['user']}    ${src['pass']}
        ...    ${src['container_type']}    ${src['container_name']}
        Wait Until Keyword Succeeds    ${timeout}    2s    Verify ONU in AAA-Users    ${k8s_node_ip}
        ...    ${ONOS_SSH_PORT}     ${onu_port}
        Wait Until Keyword Succeeds    ${timeout}    2s    Execute ONOS CLI Command    ${k8s_node_ip}
        ...    ${ONOS_SSH_PORT}    volt-add-subscriber-access ${of_id} ${onu_port}
        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate DHCP and Ping    True
        ...    True    ${src['dp_iface_name']}    ${src['s_tag']}    ${src['c_tag']}    ${dst['dp_iface_ip_qinq']}
        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
        ...    ${dst['dp_iface_name']}    ${dst['ip']}    ${dst['user']}    ${dst['pass']}    ${dst['container_type']}
        ...    ${dst['container_name']}
        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
        ...    Validate Subscriber DHCP Allocation    ${k8s_node_ip}    ${ONOS_SSH_PORT}    ${onu_port}
    END

Test Disable and Enable ONU
    [Documentation]    Validates E2E Ping Connectivity and object states for the given scenario:
    ...    Assuming that test1 was executed where all the ONUs are authenticated/DHCP/pingable
    ...    Perform disable on the ONUs and validate that the pings do not succeed
    ...    Perform enable on the ONUs and validate that the pings are successful
    [Tags]    functional    test2
    [Setup]    None
    #[Teardown]    None

    FOR    ${I}    IN RANGE    0    ${num_onus}
        ${src}=    Set Variable    ${hosts.src[${I}]}
        ${dst}=    Set Variable    ${hosts.dst[${I}]}

        ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
        ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
        ...    ${of_id}
        Disable Device    ${onu_device_id}
        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    60s    2s    Check Ping    False    ${dst['dp_iface_ip_qinq']}    
        ...    ${src['dp_iface_name']}    ${src['ip']}    ${src['user']}    ${src['pass']}   ${src['container_type']}    ${src['container_name']}
        Enable Device    ${onu_device_id}
        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
        ...    Validate Subscriber DHCP Allocation    ${k8s_node_ip}    ${ONOS_SSH_PORT}    ${onu_port}
        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    60s    2s    Check Ping    True    ${dst['dp_iface_ip_qinq']}    
        ...    ${src['dp_iface_name']}    ${src['ip']}    ${src['user']}    ${src['pass']}   ${src['container_type']}    ${src['container_name']}
    END

Check OLT/ONU Authentication After Radius Pod Restart
    [Documentation]    After radius restart, validates eapol flows and dhcp allocation
    ...    and validates onu in onos
    [Tags]    functional    test3
    [Setup]   NONE
    Wait Until Keyword Succeeds    ${timeout}    15s    Restart Pod    ${NAMESPACE}    ${RESTART_POD_NAME}

    FOR    ${I}    IN RANGE    0    ${num_onus}
        ${src}=    Set Variable    ${hosts.src[${I}]}
        ${dst}=    Set Variable    ${hosts.dst[${I}]}


        ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
        ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
        ...    ${of_id}
        Wait Until Keyword Succeeds    ${timeout}    2s    Verify Eapol Flows Added For ONU    ${k8s_node_ip}
        ...    ${ONOS_SSH_PORT}    ${onu_port}
        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate Authentication    True
        ...    ${src['dp_iface_name']}    wpa_supplicant.conf    ${src['ip']}    ${src['user']}    ${src['pass']}
        ...    ${src['container_type']}    ${src['container_name']}
        Wait Until Keyword Succeeds    ${timeout}    2s    Verify ONU in AAA-Users    ${k8s_node_ip}
        ...    ${ONOS_SSH_PORT}     ${onu_port}
        Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate DHCP and Ping    True
        ...    True    ${src['dp_iface_name']}    ${src['s_tag']}    ${src['c_tag']}    ${dst['dp_iface_ip_qinq']}
        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
        ...    ${dst['dp_iface_name']}    ${dst['ip']}    ${dst['user']}    ${dst['pass']}    ${dst['container_type']}
        ...    ${dst['container_name']}
        Wait Until Keyword Succeeds    ${timeout}    2s    Run Keyword And Continue On Failure
        ...    Validate Subscriber DHCP Allocation    ${k8s_node_ip}    ${ONOS_SSH_PORT}    ${onu_port}
    END

*** Keywords ***
Setup Suite
    [Documentation]    Setup the whole test suite
    # BBSim sanity test doesn't need these imports from other repositories
    Run Keyword If    ${external_libs}    Import Library
    ...    ${CURDIR}/../../../voltha/tests/atests/common/testCaseUtils.py
    Run Keyword If    ${external_libs}    Import Resource
    ...    ${CURDIR}/../../../cord-tester/src/test/cord-api/Framework/Subscriber.robot
    Run Keyword If    ${external_libs}    Import Resource
    ...    ${CURDIR}/../../../cord-tester/src/test/cord-api/Framework/OLT.robot
    Run Keyword If    ${external_libs}    Import Resource
    ...    ${CURDIR}/../../../cord-tester/src/test/cord-api/Framework/DHCP.robot
    Run Keyword If    ${external_libs}    Import Resource
    ...    ${CURDIR}/../../../cord-tester/src/test/cord-api/Framework/Kubernetes.robot
    Set Global Variable    ${KUBECTL_CONFIG}    export KUBECONFIG=%{KUBECONFIG}
    Set Global Variable    ${export_kubeconfig}    export KUBECONFIG=${KUBERNETES_CONF}
    Set Global Variable    ${VOLTCTL_CONFIG}    export VOLTCONFIG=%{VOLTCONFIG}
    ${k8s_node_ip}=    Evaluate    ${nodes}[0].get("ip")
    ${k8s_node_user}=    Evaluate    ${nodes}[0].get("user")
    ${k8s_node_pass}=    Evaluate    ${nodes}[0].get("pass")
    Check CLI Tools Configured
    ${onos_auth}=    Create List    karaf    karaf
    ${HEADERS}    Create Dictionary    Content-Type=application/json
    Create Session    ONOS    http://${k8s_node_ip}:${ONOS_REST_PORT}    auth=${ONOS_AUTH}
    ${olt_ip}=    Evaluate    ${olts}[0].get("ip")
    ${olt_user}=    Evaluate    ${olts}[0].get("user")
    ${olt_pass}=    Evaluate    ${olts}[0].get("pass")
    ${olt_serial_number}=    Evaluate    ${olts}[0].get("serial")
    ${num_onus}=    Get Length    ${hosts.src}
    ${num_onus}=    Convert to String    ${num_onus}
    Set Suite Variable    ${num_onus}
    Set Suite Variable    ${olt_serial_number}
    Set Suite Variable    ${olt_ip}
    Set Suite Variable    ${olt_user}
    Set Suite Variable    ${olt_pass}
    Set Suite Variable    ${k8s_node_ip}
    Set Suite Variable    ${k8s_node_user}
    Set Suite Variable    ${k8s_node_pass}
    @{container_list}=    Create List    adapter-open-olt    adapter-open-onu    voltha-api-server
    ...    voltha-ro-core    voltha-rw-core-11    voltha-rw-core-12    voltha-ofagent
    Set Suite Variable    ${container_list}
    ${datetime}=    Get Current Date
    Set Suite Variable    ${datetime}

Setup
    [Documentation]    Pre-test Setup
    #test for empty device list
    ${length}=    Test Empty Device List
    Should Be Equal As Integers  ${length}     0
    #create/preprovision device
    ${olt_device_id}=    Create Device    ${olt_ip}    ${OLT_PORT}
    Set Suite Variable    ${olt_device_id}
    #validate olt states
    Wait Until Keyword Succeeds    ${timeout}    5s    Validate OLT Device    PREPROVISIONED    UNKNOWN    UNKNOWN
    ...    ${EMPTY}    ${olt_device_id}
    Enable Device    ${olt_device_id}
    Wait Until Keyword Succeeds    ${timeout}    5s    Validate OLT Device    ENABLED    ACTIVE    REACHABLE
    ...    ${olt_serial_number}
    ${logical_id}=    Get Logical Device ID From SN    ${olt_serial_number}
    Set Suite Variable    ${logical_id}

Teardown
    [Documentation]    kills processes and cleans up interfaces on src+dst servers
    Get Device Output from Voltha    ${olt_device_id}
    #Get Logical Device Output from Voltha    ${logical_id}
    Run Keyword If    ${external_libs}    Get ONOS Status    ${k8s_node_ip}
    Run Keyword If    ${has_dataplane}    Clean Up Linux
    Run Keyword If    ${external_libs}    Log Kubernetes Containers Logs Since Time    ${datetime}    ${container_list}

Teardown Suite
    [Documentation]    Clean up device if desired
    Run Keyword If    ${teardown_device}    Delete Device and Verify
    ${length}=    Run Keyword If    ${teardown_device}    Run Keyword And Return    Test Empty Device List
    Run Keyword If    ${teardown_device}    Should Be Equal As Integers    ${length}    0
    Run Keyword If    ${teardown_device}    Execute ONOS CLI Command    ${k8s_node_ip}    ${ONOS_SSH_PORT}
    ...    device-remove ${of_id}


Clean Up Linux
    [Documentation]    Kill processes and clean up interfaces on src+dst servers
    FOR    ${I}    IN RANGE    0    ${num_onus}
        ${src}=    Set Variable    ${hosts.src[${I}]}
        ${dst}=    Set Variable    ${hosts.dst[${I}]}
        Run Keyword And Ignore Error    Kill Linux Process    [w]pa_supplicant    ${src['ip']}
        ...    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
        Run Keyword And Ignore Error    Kill Linux Process    [d]hclient    ${src['ip']}
        ...    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
        Run Keyword If    '${dst['ip']}' != '${None}'    Run Keyword And Ignore Error
        ...    Kill Linux Process    [d]hcpd    ${dst['ip']}    ${dst['user']}
        ...    ${dst['pass']}    ${dst['container_type']}    ${dst['container_name']}
        Delete IP Addresses from Interface on Remote Host    ${src['dp_iface_name']}    ${src['ip']}
        ...    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
        Run Keyword If    '${dst['ip']}' != '${None}'    Delete Interface on Remote Host
        ...    ${dst['dp_iface_name']}.${src['s_tag']}    ${dst['ip']}    ${dst['user']}    ${dst['pass']}
        ...    ${dst['container_type']}    ${dst['container_name']}
    END

Delete Device and Verify
    [Documentation]    Disable -> Delete devices via voltctl and verify its removed
    ${rc}    ${output}=    Run and Return Rc and Output    ${VOLTCTL_CONFIG}; voltctl device disable ${olt_device_id}
    Should Be Equal As Integers    ${rc}    0
    Wait Until Keyword Succeeds    ${timeout}    5s    Validate OLT Device    DISABLED    UNKNOWN    REACHABLE
    ...    ${olt_serial_number}
    ${rc}    ${output}=    Run and Return Rc and Output    ${VOLTCTL_CONFIG}; voltctl device delete ${olt_device_id}
    Should Be Equal As Integers    ${rc}    0
    Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device Removed    ${olt_device_id}