#!/bin/bash

# Install and start the **Tuskar** service

# library code (equivalent to lib/tuskar)
# ---------
# - install_tuskarclient
# - install_tuskar
# - configure_tuskarclient
# - configure_tuskar
# - init_tuskar
# - start_tuskar
# - stop_tuskar
# - cleanup_tuskar

# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace

# Functions
# ---------

# Test if any Tuskar services are enabled
# is_tuskar_enabled
function is_tuskar_enabled {
    [[ ,${ENABLED_SERVICES} =~ ,"tuskar-" ]] && return 0
    return 1
}

# cleanup_tuskar() - Remove residual data files, anything left over from previous
# runs that a clean run would need to clean up
function cleanup_tuskar {
    sudo rm -rf $TUSKAR_AUTH_CACHE_DIR
}

# configure_tuskar() - Set config files, create data dirs, etc
function configure_tuskar {
    if [[ ! -d $TUSKAR_CONF_DIR ]]; then
        sudo mkdir -p $TUSKAR_CONF_DIR
    fi
    sudo chown $STACK_USER $TUSKAR_CONF_DIR
    # remove old config files
    rm -f $TUSKAR_CONF_DIR/tuskar-*.conf

    TUSKAR_POLICY_FILE=$TUSKAR_CONF_DIR/policy.json

    cp $TUSKAR_DIR/etc/tuskar/policy.json $TUSKAR_POLICY_FILE
    cp $TUSKAR_DIR/etc/tuskar/tuskar.conf.sample $TUSKAR_CONF

    # common options
    iniset $TUSKAR_CONF database connection `database_connection_url tuskar`

    # logging
    iniset $TUSKAR_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
    iniset $TUSKAR_CONF DEFAULT use_syslog $SYSLOG
    if [ "$LOG_COLOR" == "True" ] && [ "$SYSLOG" == "False" ]; then
        # Add color to logging output
        setup_colorized_logging $TUSKAR_CONF DEFAULT tenant user
    fi

    configure_auth_token_middleware $TUSKAR_CONF tuskar $TUSKAR_AUTH_CACHE_DIR

    if is_ssl_enabled_service "key"; then
        iniset $TUSKAR_CONF clients_keystone ca_file $SSL_BUNDLE_FILE
    fi

    iniset $TUSKAR_CONF tuskar_api bind_port $TUSKAR_API_PORT

}

# init_tuskar() - Initialize database
function init_tuskar {

    # (re)create tuskar database
    recreate_database tuskar

    tuskar-dbsync --config-file $TUSKAR_CONF
    create_tuskar_cache_dir
}

# create_tuskar_cache_dir() - Part of the init_tuskar() process
function create_tuskar_cache_dir {
    # Create cache dirs
    sudo mkdir -p $TUSKAR_AUTH_CACHE_DIR
    sudo chown $STACK_USER $TUSKAR_AUTH_CACHE_DIR
}

# install_tuskar() - Collect source and prepare
function install_tuskar {
    setup_develop $TUSKAR_DIR
}

# start_tuskar() - Start running processes, including screen
function start_tuskar {
    run_process tuskar-api "tuskar-api --config-file=$TUSKAR_CONF"
}

# stop_tuskar() - Stop running processes
function stop_tuskar {
    # Kill the screen windows
    local serv
    for serv in tuskar-api; do
        stop_process $serv
    done
}

# create_tuskar_accounts() - Set up common required tuskar accounts
function create_tuskar_accounts {
    # migrated from files/keystone_data.sh
    local service_tenant=$(openstack project list | awk "/ $SERVICE_TENANT_NAME / { print \$2 }")
    local admin_role=$(openstack role list | awk "/ admin / { print \$2 }")

    local tuskar_user=$(get_or_create_user "tuskar" \
        "$SERVICE_PASSWORD" $service_tenant)
    get_or_add_user_role $admin_role $tuskar_user $service_tenant

    if [[ "$KEYSTONE_CATALOG_BACKEND" = 'sql' ]]; then

        local tuskar_service=$(get_or_create_service "tuskar" \
                "management" "Tuskar Management Service")
        get_or_create_endpoint $tuskar_service \
            "$REGION_NAME" \
            "$SERVICE_PROTOCOL://$TUSKAR_API_HOST:$TUSKAR_API_PORT" \
            "$SERVICE_PROTOCOL://$TUSKAR_API_HOST:$TUSKAR_API_PORT" \
            "$SERVICE_PROTOCOL://$TUSKAR_API_HOST:$TUSKAR_API_PORT"
    fi
}

# Main dispatcher
if [[ "$1" == "source" ]]; then
    # Initial source, do nothing as functions sourced
    # are below rather than in lib/tuskar
    echo_summary "source extras tuskar"
elif [[ "$1" == "stack" && "$2" == "install" ]]; then
    echo_summary "Installing Tuskar"
    install_tuskar
elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
    echo_summary "Configuring Tuskar"
    configure_tuskar
    if is_service_enabled key; then
        create_tuskar_accounts
    fi
elif [[ "$1" == "stack" && "$2" == "extra" ]]; then
    echo_summary "Initializing Tuskar"
    init_tuskar
    start_tuskar
fi

if [[ "$1" == "unstack" ]]; then
    stop_tuskar
fi

# Restore xtrace
$XTRACE

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