#!/usr/bin/env bash
set +u
set -e
# set -x
base_dir=$(
    cd "$(dirname "$0")"
    pwd
)
cd $base_dir

# ./auto_del_log.sh
function log_warn() {
    local date=$(date "+%Y-%m-%d-%H:%M:%S")
    local para=$1
    echo "[WARN] $date $1" | tee -a "./log/run_log"

}

function log_info() {
    local date=$(date "+%Y-%m-%d-%H:%M:%S")
    local para=$1
    echo "[INFO] $date $1" | tee -a "./log/run_log"
}

function log_err() {
    local date=$(date "+%Y-%m-%d-%H:%M:%S")
    local para=$1
    echo "[ERROR] $date $1" | tee -a "./log/run_log"
}

node_exporter_log_path="./log/node_exporter/"
postgres_exporter_log_path="./log/postgres_exporter/"


# node_exporter section
if ps -auxc | grep "node_exporter" | grep -v grep > /dev/null; then
    log_info "node_exporter 已在运行"
elif [[ ! -f "./lib/node_exporter" ]]; then
    log_info "no node_exporter found, skip"
else

    if [[ ! -d $node_exporter_log_path ]]; then
        mkdir -p "$node_exporter_log_path"
    fi

    log_node_exporter_file="node_exporter_$(date "+%Y-%m-%d-%H:%M:%S").log"
    ./lib/node_exporter &>> "${node_exporter_log_path}${log_node_exporter_file}" &
    sleep 1
    log_info "node_exporter 启动成功！"
fi

# postgres_exporter section
if ps -auxc | grep "postgres_exporter" | grep -v grep > /dev/null; then
    log_info "postgres_exporter 已在运行"
elif [[ ! -f "./lib/postgres_exporter" ]]; then
    log_info "no postgres_exporter found, skip"
else

    if [[ ! -d $postgres_exporter_log_path ]]; then
        mkdir -p "$postgres_exporter_log_path"
    fi
    #todo 输入用户名和密码
    export DATA_SOURCE_NAME=postgresql://username:password@localhost:5432/?sslmode=disable
    log_postgres_exporter_file="postgres_exporter_$(date "+%Y-%m-%d-%H:%M:%S").log"
    ./lib/postgres_exporter  --web.listen-address=:9187  &>> "${postgres_exporter_log_path}${log_postgres_exporter_file}" &
    sleep 1
    log_info "postgres_exporter 启动成功！"
fi