#!/usr/bin/env bash

# shellcheck disable=SC1091
. /scripts/init.sh

print_usage() {
    echo "Valid commands for valkey-start:"
    echo ""
    echo "proxy <announce-host>               start valkey proxy"
    echo "server <announce-host>              start valkey server"
    echo "sentinel <announce-host>            start valkey sentinel"
    echo ""
    echo "Such as 'valkey-start server valkey.valkey.svc' to start valkey server."
}

remove_in_file() {
    local filename="${1:?filename is required}"
    local match_regex="^\s*${2:?match regex is required} .*"
    sed -i "/$match_regex/d" "$filename"
}

get_master_info() {
    export REDISCLI_AUTH=${DRYCC_VALKEY_PASSWORD}
    command="valkey-cli -h ${DRYCC_VALKEY_SENTINEL} -p ${SENTINEL_PORT} sentinel get-master-addr-by-name drycc 2>>/dev/null"
    eval "$command"
}

start_valkey_proxy() {
    exec valkey-sentinel-proxy \
        --listen=:16379 \
        --master=drycc \
        --max-procs=4 \
        --sentinel-addr="${DRYCC_VALKEY_SENTINEL}":26379 \
        --sentinel-pass="${DRYCC_VALKEY_PASSWORD}"
}

start_valkey_server() {
    announce_ip="$1"
    VALKEY_CONFIG_FILE=/data/server/valkey.conf
    if [ ! -f ${VALKEY_CONFIG_FILE} ]; then
        cp -rf /etc/valkey/valkey-default.conf ${VALKEY_CONFIG_FILE}
    fi

    # Clean old
    remove_in_file ${VALKEY_CONFIG_FILE} masterauth
    remove_in_file ${VALKEY_CONFIG_FILE} requirepass
    remove_in_file ${VALKEY_CONFIG_FILE} replicaof
    remove_in_file ${VALKEY_CONFIG_FILE} replica-announce-ip
    remove_in_file ${VALKEY_CONFIG_FILE} replica-announce-port
    {
        printf "\nmasterauth %s" "${DRYCC_VALKEY_PASSWORD}"
        printf "\nrequirepass %s" "${DRYCC_VALKEY_PASSWORD}"
        printf "\nreplica-announce-ip %s" "${announce_ip}"
        printf "\nreplica-announce-port %s" "${SERVER_PORT}"
    } >> ${VALKEY_CONFIG_FILE}
    # Set server slaveof
    if get_master_info; then
        # shellcheck disable=SC2207
        master_info=($(get_master_info))
        if [ "${master_info[0]}" != "${announce_ip}" ]; then
            printf "\nreplicaof %s %s" "${master_info[0]}" "${master_info[1]}" >> "${VALKEY_CONFIG_FILE}"
        fi
    fi
    exec valkey-server "${VALKEY_CONFIG_FILE}"
}

start_valkey_sentinel() {
    announce_ip="$1"
    VALKEY_SENTINEL_CONFIG_FILE=/data/sentinel/valkey-sentinel.conf
    if [ ! -f ${VALKEY_SENTINEL_CONFIG_FILE} ]; then
        cp -rf /etc/valkey/valkey-sentinel-default.conf ${VALKEY_SENTINEL_CONFIG_FILE}
    fi

    # Clean old
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} masterauth
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} requirepass
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} primaryauth
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} "sentinel auth-pass"
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} "sentinel announce-ip"
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} "sentinel announce-port"
    remove_in_file ${VALKEY_SENTINEL_CONFIG_FILE} "sentinel monitor"

    # Set sentinel config
    {
        printf "\nmasterauth %s" "${DRYCC_VALKEY_PASSWORD}"
        printf "\nrequirepass %s" "${DRYCC_VALKEY_PASSWORD}"
        printf "\nprimaryauth %s" "${DRYCC_VALKEY_PASSWORD}"
        printf "\nsentinel auth-pass drycc %s" "${DRYCC_VALKEY_PASSWORD}"
        printf "\nsentinel announce-ip %s" "${announce_ip}"
        printf "\nsentinel announce-port %s" "${SENTINEL_PORT}"
    } >> ${VALKEY_SENTINEL_CONFIG_FILE}

    # Set monitor
    if get_master_info; then
        # shellcheck disable=SC2207
        master_info=($(get_master_info))
        printf "\nsentinel monitor drycc %s %s 2" "${master_info[0]}" "${master_info[1]}" >> ${VALKEY_SENTINEL_CONFIG_FILE}
    else
        printf "\nsentinel monitor drycc %s %s 2" "${announce_ip}" "${SERVER_PORT}" >> ${VALKEY_SENTINEL_CONFIG_FILE}
    fi
    exec valkey-server $VALKEY_SENTINEL_CONFIG_FILE --sentinel
}

command="$1"
if [[ ${command} == "proxy" || ${command} == "server" || ${command} == "sentinel" ]]; then
    "start_valkey_$command" "$2"
else
    print_usage
    exit 1
fi