#!/bin/bash

cat <<-EOF
#!/bin/bash
#=========================================
# Author   : Colben
# Create   : $(date +"%F %R")
#=========================================

set -euo pipefail
export LANG=en_US.UTF-8
trap Quit EXIT

PID_FILE=/tmp/\$(basename \${0%.sh}).pid

if [ -t 0 ]; then
    function Print { echo -e "\033[32;1m\$(date +'[%F %T]') \$*\033[0m"; }
    function Warn { echo -e "\033[33;1m\$(date +'[%F %T]') \$*\033[0m"; }
    function Error { echo -e "\033[31;1m\$(date +'[%F %T]') \$*\033[0m"; exit 1; }
else
    #exec &> \$(dirname \$0).out
    function Print { echo -e "\$(date +'[%F %T] INFO') \$*"; }
    function Warn { echo -e "\$(date +'[%F %T] WARN') \$*"; }
    function Error { echo -e "\$(date +'[%F %T] ERRRO') \$*"; exit 1; }
fi

function Quit {
    local exitCode=\$?
    rm -f \$PID_FILE
    [ 0 -ne \$exitCode ] && Error Failed to xxxx!
    [ -z "\${END:-}" ] && echo && Error Interrupted manually!
    Print Succeeded to xxxx.
}

function Func1 {
    Print Func1 ...
}

function Func2 {
    Print Func2 ...
}

function Main {
    [ -e "\$PID_FILE" ] && Error Pid file \$PID_FILE already exists, quit!
    echo \$\$ > \$PID_FILE
    Print Main ...
    Func1
    Func2
    END=1
}

# Start here
Main
EOF