#!/bin/bash

# NOT compatible with Rocky9 !!! Ruby gem versions...

dir="/usr/src/m2"

. /usr/src/m2/framework/bash_functions.sh
. /etc/profile.d/rvm.sh

VERSION="1.1.0"

# based on https://outhereinthefield.wordpress.com/2015/06/14/scripting-gmail-download-and-saving-the-attachments-with-fetchmail-procmail-and-munpack/

install_packets() {
    local cur_dir=$(pwd)
    #local mpack_version="1.6-2"
    local rar_version="5.6.0"
    local mail_gem_version="2.7.1"
    local mechanize_gem_version="2.7.4"
    local nokogiri_gem_version="1.6.8"

    # http://trac.kolmisoft.com/trac/ticket/17659 
    if [[ $ROCKY9 == 1 ]]; then 
        rvm use ruby-3.2.2
        # newer gems required for link_attachment_downloader.rb 
        nokogiri_gem_version="1.16.0" 
        mechanize_gem_version="2.10.0"
        yum -y install fetchmail procmail nano unzip wget util-linux

        ripMIME needs to be cloned and installed manaully
        git clone https://github.com/inflex/ripMIME.git
        cd "$cur_dir/ripMIME"
        make
        make install
        rm -rf "$cur_dir/ripMIME"
        cd "$cur_dir"
    else
        yum -y install fetchmail procmail nano unzip wget util-linux ripmime
    fi 

    report "Checking gems. This can take some time..." 3

    if ! rvm @global do gem list mail | grep -Fq $mail_gem_version; then
        rvm @global do gem install mail -v $mail_gem_version
    fi

    if ! rvm @global do gem list nokogiri | grep -Fq $nokogiri_gem_version; then
        rvm @global do gem install nokogiri -v $nokogiri_gem_version -- --use-system-libraries
    fi

    if ! rvm @global do gem list mechanize | grep -Fq $mechanize_gem_version; then
        rvm @global do gem install mechanize -v $mechanize_gem_version
    fi

    #install mpac (munpack)
    cd /usr/src

    # if ! rpm -qa | grep -Fq mpack-$mpack_version; then

    #     wget --no-check-certificate http://www.kolmisoft.com/packets/mpack-$mpack_version.el6.rf.x86_64.rpm
    #     rpm -Uvh mpack*
    # fi

    # Install rar
    if [ ! -e /usr/src/rarlinux-x64-$rar_version.tar.gz ]; then
        wget https://www.rarlab.com/rar/rarlinux-x64-$rar_version.tar.gz
        tar -zxvf rarlinux-x64-$rar_version.tar.gz &> /dev/null
        cp -v rar/rar rar/unrar /usr/local/bin/
    fi

    cd "$cur_dir"
}

update_source() {
    cp -fr $dir/helpers/email2tariff/get_mail.sh /home/email2tariff/
    cp -fr $dir/helpers/email2tariff/email_source_parser.rb /home/email2tariff/
    cp -fr $dir/helpers/email2tariff/link_attachment_downloader.rb /home/email2tariff/
    cp -fr $dir/helpers/email2tariff/email2tariff_cron /etc/cron.d/
    cp -fr $dir/gui/cronjobs/m2_tariff_import_actions /etc/cron.d/

    apache_listen_on_https=$(netstat -antp  | grep -F http | grep -cF :443)

    if (( apache_listen_on_https > 0)); then
            sed -i 's#http:#https:#' /etc/cron.d/m2_tariff_import_actions
    fi

    chmod 777 /home/email2tariff/email_source_parser.rb
    chmod 777 /home/email2tariff/link_attachment_downloader.rb
    chmod 0644 /etc/cron.d/email2tariff_cron
    chmod 0644 /etc/cron.d/m2_tariff_import_actions

    service crond restart > /dev/null
    # global logrotate handles it now
    #add_logrotate_if_not_present "/var/log/m2/email2tariff.log" "email2tariff"

}

install_configs() {
    cp -fr $dir/helpers/email2tariff/.fetchmailrc /root
    cp -fr $dir/helpers/email2tariff/.procmailrc /home/email2tariff
    # Contains password in cleartext
    chmod 700 /root/.fetchmailrc

    report "Enter correct email username and password into /root/.fetchmailrc" 3
    report "If using different mail provider than gmail, change other details accordingly" 3
}

report "Starting email2tariff installation/update" 3

#  A bit of explanation for the folders:
#    • landing is where we first move new mails from procmail’s Maildir prior extracting the attachments
#    • extract is where we will perform attachment extraction
#    • store is the final destination of the attachments
#    • archive is where the mail files are stored after the process is done. If you want to reprocess certain files, just move it back to landing

mkdir -p /home/email2tariff/Maildir/process/{landing,extract,store,archive}

# Set confline with current date -12 h to account for posible timezone diferences
confline_date=$(date +'%Y-%m-%d %H:%M:%S' -d '12 hour ago');
set_confline "Email2tariff_start_date" "$confline_date"

install_packets
update_source

if [ ! -e /root/.fetchmailrc ]; then
    install_configs
fi

report "Email2Tariff installation/update has been completed" 3