#!/bin/bash

defaultNNTP="news.aioe.org"
defaultGroups="comp.emulators.apple2:\ncomp.sys.apple2:\ncomp.sys.apple2.comm:\ncomp.sys.apple2.marketplace:\ncomp.sys.apple2.programmer:\ncomp.sys.apple2.usergroups:"

if [[ ! $(dpkg -l tin 2> /dev/null | grep '^ii') ]]; then
    echo "Installing Tin newsreader..."
    sudo apt-get -y update
    sudo apt-get -y install tin &> /dev/null
    sudo apt-get -y clean
fi        

if [[ $1 == "-h" || $1 == "--help" ]]; then
    echo "Usage: a2news [-s nntpServerAddress] [-m postingEmailAddress] [otherTinOptions]"
    echo "  note: for full options, instead use 'tin'"
    exit 1
fi

while [[ $1 == "-s" || $1 == "-m" ]]; do    
    if [[ $1 == "-s" && $2 ]]; then
        nntpServer=$2
        shift
        shift
    fi
    
    if [[ $1 == "-m" && $2 ]]; then
        emailAddress=$2
        shift
        shift
    fi
done

mkdir -p ~/.tin

if [[ ! -f ~/.newsrc ]]; then
    IFS=''; echo -e "$defaultGroups" > ~/.newsrc
fi

if [[ $nntpServer || ! -f ~/.tin/nntp.server ]]; then
    [[ ! $nntpServer ]] && nntpServer="$defaultNNTP"
    echo "$nntpServer" > ~/.tin/nntp.server
else
    nntpServer=$(cat ~/.tin/nntp.server)
fi

if [[ $emailAddress || ! -f ~/.tin/tinrc ]]; then
    while [[ ! $emailAddress || ! $(grep "@" <<< $emailAddress) || ! $(grep "\." <<< $emailAddress) ]]; do
        echo -n "Enter the email address you want to post as: "
        read
        emailAddress=$REPLY
    done
    if [[ -f ~/.tin/tinrc ]]; then
        sed -i "s/^mail_address=.*$/mail_address=$emailAddress/" ~/.tin/tinrc
    else
        echo "mail_address=$emailAddress" > ~/.tin/tinrc
    fi
fi

NNTPSERVER=$nntpServer tin -r "$@"