#!/usr/bin/env bash

set -eu
script_name=$0

die() {
    echo >&2 "$@"
    exit 1
}

about() {
    die "usage: $script_name [make | load | clean]"
}

#shellcheck disable=SC1007
THIS_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
cd "${THIS_DIR}"
#shellcheck disable=SC1090
. ./.environment.sh

# you have not removed set -u above, have you?

[ -z "${TEST_DIR-}" ] && die "\$TEST_DIR must be defined."
[ -z "${LOCAL_DIR-}" ] && die "\$LOCAL_DIR must be defined."
[ -z "${CSCLI-}" ] && die "\$CSCLI must be defined."
[ -z "${LOCAL_INIT_DIR-}" ] && die "\$LOCAL_INIT_DIR must be defined."
[ -z "${PLUGIN_DIR-}" ] && die "\$PLUGIN_DIR must be defined."
[ -z "${DB_BACKEND-}" ] && die "\$DB_BACKEND must be defined."

if [ ! -f "${CSCLI}" ]; then
    die "${CSCLI} is missing. Please build (with 'make bats-build') or install it."
fi

REL_CONFIG_DIR="etc/crowdsec"
REL_DATA_DIR="var/lib/crowdsec/data"

DATA_DIR="${LOCAL_DIR}/${REL_DATA_DIR}"
export DATA_DIR
CONFIG_DIR="${LOCAL_DIR}/${REL_CONFIG_DIR}"
export CONFIG_DIR

remove_init_data() {
    rm -rf -- "${LOCAL_DIR:?}/${REL_CONFIG_DIR}"/* "${LOCAL_DIR:?}/${REL_DATA_DIR:?}"/*
}

config_generate() {
    mkdir -p "${CONFIG_DIR}"

    cp ../config/acquis.yaml \
       ../config/profiles.yaml \
       ../config/simulation.yaml \
       ../config/local_api_credentials.yaml \
       ../config/online_api_credentials.yaml \
       "${CONFIG_DIR}/"

    cp ../plugins/notifications/*/{http,email,slack,splunk,dummy}.yaml \
       "${CONFIG_DIR}/notifications/"

    yq '
    .common.daemonize=false |
    del(.common.pid_dir) |
    .common.log_dir=strenv(LOG_DIR) |
    .config_paths.config_dir=strenv(CONFIG_DIR) |
    .config_paths.data_dir=strenv(DATA_DIR) |
    .config_paths.simulation_path=strenv(CONFIG_DIR)+"/simulation.yaml" |
    .config_paths.hub_dir=strenv(CONFIG_DIR)+"/hub/" |
    .config_paths.index_path=strenv(CONFIG_DIR)+"/hub/.index.json" |
    .config_paths.notification_dir=strenv(CONFIG_DIR)+"/notifications/" |
    .config_paths.plugin_dir=strenv(PLUGIN_DIR) |
    .crowdsec_service.acquisition_path=strenv(CONFIG_DIR)+"/acquis.yaml" |
    .db_config.db_path=strenv(DATA_DIR)+"/crowdsec.db" |
    .api.client.credentials_path=strenv(CONFIG_DIR)+"/local_api_credentials.yaml" |
    .api.server.profiles_path=strenv(CONFIG_DIR)+"/profiles.yaml" |
    .api.server.console_path=strenv(CONFIG_DIR)+"/console.yaml" |
    .api.server.online_client.credentials_path=strenv(CONFIG_DIR)+"/online_api_credentials.yaml"
    ' <../config/config.yaml >"${CONFIG_DIR}/config.yaml"
}

make_init_data() {
    remove_init_data

    mkdir -p "${DATA_DIR}"
    mkdir -p "${CONFIG_DIR}/notifications"
    mkdir -p "${CONFIG_DIR}/hub"
    mkdir -p "${CONFIG_DIR}/patterns"
    cp -ax "../config/patterns" "${CONFIG_DIR}/"
    config_generate
    # XXX errors from instance-db should be reported...
    ./instance-db config-yaml
    ./instance-db setup

    "${CSCLI}" machines add githubciXXXXXXXXXXXXXXXXXXXXXXXX --auto
    "${CSCLI}" capi register --schmilblick githubciXXXXXXXXXXXXXXXXXXXXXXXX
    "${CSCLI}" hub update
    "${CSCLI}" collections install crowdsecurity/linux

    "${TEST_DIR}/instance-crowdsec" start
    "${CSCLI}" lapi status
    "${TEST_DIR}/instance-crowdsec" stop

    mkdir -p "${LOCAL_INIT_DIR}"

    ./instance-db dump "${LOCAL_INIT_DIR}/database"
    echo "${DB_BACKEND}" > "${LOCAL_INIT_DIR}/.backend"

    tar -C "${LOCAL_DIR}" --create \
        --exclude "$REL_DATA_DIR"/crowdsec.db \
        --file "${LOCAL_INIT_DIR}/init-config-data.tar" "$REL_CONFIG_DIR" "$REL_DATA_DIR"

    remove_init_data
}

load_init_data() {
    if [ ! -f "${LOCAL_INIT_DIR}/init-config-data.tar" ]; then
        die "Initial data not found; did you run '$script_name make' ?"
    fi

    dump_backend="$(cat "${LOCAL_INIT_DIR}/.backend")"
    if [ "$DB_BACKEND" != "$dump_backend" ]; then
        die "Can't run with backend '$DB_BACKEND' because the test data was build with '$dump_backend'"
    fi

    remove_init_data

    tar -C "${LOCAL_DIR}" --extract --file "${LOCAL_INIT_DIR}/init-config-data.tar"
    ./instance-db restore "${LOCAL_INIT_DIR}/database"
}


# ---------------------------

[ $# -lt 1 ] && about

./assert-crowdsec-not-running

case "$1" in
    make)
        make_init_data
        ;;
    load)
        load_init_data
        ;;
    clean)
        remove_init_data
        ;;
    *)
        about
        ;;
esac;