#!/bin/bash

set -o xtrace
set -o errexit
set -o pipefail

# Enable unbuffered output for Ansible in Jenkins.
export PYTHONUNBUFFERED=1

function test_smoke {
    openstack --debug compute service list
    openstack --debug network agent list
    openstack --debug orchestration service list
    if [[ $SCENARIO == "cephadm" ]] || [[ $SCENARIO == "zun" ]]; then
        openstack --debug volume service list
    fi
}

function create_a_volume {
    local volume_name=$1

    local attempt

    openstack volume create --size 2 $volume_name
    attempt=1
    while [[ $(openstack volume show $volume_name -f value -c status) != "available" ]]; do
        echo "Volume $volume_name not available yet"
        attempt=$((attempt+1))
        if [[ $attempt -eq 10 ]]; then
            echo "Volume $volume_name failed to become available"
            openstack volume show $volume_name
            return 1
        fi
        sleep 10
    done
}

function attach_and_detach_a_volume {
    local volume_name=$1
    local instance_name=$2

    local attempt

    openstack server add volume $instance_name $volume_name --device /dev/vdb
    attempt=1
    while [[ $(openstack volume show $volume_name -f value -c status) != "in-use" ]]; do
        echo "Volume $volume_name not attached yet"
        attempt=$((attempt+1))
        if [[ $attempt -eq 10 ]]; then
            echo "Volume failed to attach"
            openstack volume show $volume_name
            return 1
        fi
        sleep 10
    done

    openstack server remove volume $instance_name $volume_name
    attempt=1
    while [[ $(openstack volume show $volume_name -f value -c status) != "available" ]]; do
        echo "Volume $volume_name not detached yet"
        attempt=$((attempt+1))
        if [[ $attempt -eq 10 ]]; then
            echo "Volume failed to detach"
            openstack volume show $volume_name
            return 1
        fi
        sleep 10
    done
}

function delete_a_volume {
    local volume_name=$1

    local attempt
    local result

    openstack volume delete $volume_name

    attempt=1
    # NOTE(yoctozepto): This is executed outside of the `while` clause
    # *on purpose*. You see, bash is evil (TM) and will silence any error
    # happening in any "condition" clause (such as `if` or `while`) even with
    # `errexit` being set.
    result=$(openstack volume list --name $volume_name -f value -c ID)
    while [[ -n "$result" ]]; do
        echo "Volume $volume_name not deleted yet"
        attempt=$((attempt+1))
        if [[ $attempt -eq 10 ]]; then
            echo "Volume failed to delete"
            openstack volume show $volume_name
            return 1
        fi
        sleep 10
        result=$(openstack volume list --name $volume_name -f value -c ID)
    done
}

function create_instance {
    local name=$1
    openstack server create --wait --image cirros --flavor m1.tiny --key-name mykey --network demo-net ${name}
    # If the status is not ACTIVE, print info and exit 1
    if [[ $(openstack server show ${name} -f value -c status) != "ACTIVE" ]]; then
        echo "FAILED: Instance is not active"
        openstack --debug server show ${name}
        return 1
    fi
}

function delete_instance {
    local name=$1
    openstack server delete --wait ${name}
}

function create_fip {
    openstack floating ip create public1 -f value -c floating_ip_address
}

function delete_fip {
    local fip_addr=$1
    openstack floating ip delete ${fip_addr}
}

function attach_fip {
    local instance_name=$1
    local fip_addr=$2
    openstack server add floating ip ${instance_name} ${fip_addr}
}

function detach_fip {
    local instance_name=$1
    local fip_addr=$2
    openstack server remove floating ip ${instance_name} ${fip_addr}
}

function test_ssh {
    local instance_name=$1
    local fip_addr=$2
    local attempts
    attempts=12
    for i in $(seq 1 ${attempts}); do
        if ping -c1 -W1 ${fip_addr} && ssh -v -o BatchMode=yes -o StrictHostKeyChecking=no cirros@${fip_addr} hostname; then
            break
        elif [[ $i -eq ${attempts} ]]; then
            echo "Failed to access server via SSH after ${attempts} attempts"
            echo "Console log:"
            openstack console log show ${instance_name} || true
            openstack --debug server show ${instance_name}
            return 1
        else
            echo "Cannot access server - retrying"
        fi
        sleep 10
    done
}

function test_instance_boot {
    local fip_addr

    echo "TESTING: Server creation"
    create_instance kolla_boot_test
    echo "SUCCESS: Server creation"

    if [[ $SCENARIO == "cephadm" ]] || [[ $SCENARIO == "zun" ]]; then
        echo "TESTING: Cinder volume attachment"

        create_a_volume test_volume
        openstack volume show test_volume
        attach_and_detach_a_volume test_volume kolla_boot_test
        delete_a_volume test_volume

        echo "SUCCESS: Cinder volume attachment"

        if [[ $HAS_UPGRADE == 'yes' ]]; then
            echo "TESTING: Cinder volume upgrade stability (PHASE: $PHASE)"

            if [[ $PHASE == 'deploy' ]]; then
                create_a_volume durable_volume
                openstack volume show durable_volume
            elif [[ $PHASE == 'upgrade' ]]; then
                openstack volume show durable_volume
                attach_and_detach_a_volume durable_volume kolla_boot_test
                delete_a_volume durable_volume
            fi

            echo "SUCCESS: Cinder volume upgrade stability (PHASE: $PHASE)"
        fi
    fi

    echo "TESTING: Floating ip allocation"
    fip_addr=$(create_fip)
    attach_fip kolla_boot_test ${fip_addr}
    echo "SUCCESS: Floating ip allocation"

    echo "TESTING: PING&SSH to floating ip"
    test_ssh kolla_boot_test ${fip_addr}
    echo "SUCCESS: PING&SSH to floating ip"

    echo "TESTING: Floating ip deallocation"
    detach_fip kolla_boot_test ${fip_addr}
    delete_fip ${fip_addr}
    echo "SUCCESS: Floating ip deallocation"

    echo "TESTING: Server deletion"
    delete_instance kolla_boot_test
    echo "SUCCESS: Server deletion"

    if [[ $HAS_UPGRADE == 'yes' ]]; then
        echo "TESTING: Instance (Nova and Neutron) upgrade stability (PHASE: $PHASE)"

        if [[ $PHASE == 'deploy' ]]; then
            create_instance kolla_upgrade_test
            fip_addr=$(create_fip)
            attach_fip kolla_upgrade_test ${fip_addr}
            test_ssh kolla_upgrade_test ${fip_addr}  # tested to see if the instance has not just failed booting already
            echo ${fip_addr} > /tmp/kolla_ci_pre_upgrade_fip_addr
        elif [[ $PHASE == 'upgrade' ]]; then
            fip_addr=$(cat /tmp/kolla_ci_pre_upgrade_fip_addr)
            test_ssh kolla_upgrade_test ${fip_addr}
            detach_fip kolla_upgrade_test ${fip_addr}
            delete_fip ${fip_addr}
            delete_instance kolla_upgrade_test
        fi

        echo "SUCCESS: Instance (Nova and Neutron) upgrade stability (PHASE: $PHASE)"
    fi
}

function test_openstack_logged {
    . /etc/kolla/admin-openrc.sh
    . ~/openstackclient-venv/bin/activate
    test_smoke
    test_instance_boot
}

function test_openstack {
    echo "Testing OpenStack"
    log_file=/tmp/logs/ansible/test-core-openstack
    if [[ -f $log_file ]]; then
        log_file=${log_file}-upgrade
    fi
    test_openstack_logged > $log_file 2>&1
    result=$?
    if [[ $result != 0 ]]; then
        echo "Testing OpenStack failed. See ansible/test-core-openstack for details"
    else
        echo "Successfully tested OpenStack. See ansible/test-core-openstack for details"
    fi
    return $result
}

test_openstack
