#!/usr/bin/env perl

use strict;
use warnings;

use Config::Std		{ def_sep => '=' };
use Getopt::Std;
use Net::Twitter::Lite;
use WebService::Prowl;

my %opt;

read_config 'twitter.conf' => my %config;
getopts( 'a:dms', \%opt );

my $prowl = WebService::Prowl->new( apikey => $config{''}{'prowl_api_key'} );
$prowl->verify()
    or die $prowl->error();

my @accounts = get_accounts();
my $twitter;

foreach my $account ( sort @accounts ) {
    status( "-> $account" );
    $twitter = Net::Twitter::Lite->new(
            username => $account,
            password => $config{ $account }{'password'},
        );

    if ( !defined $config{ $account }{'skip_dm'} ) {
        check_direct_messages( $account );
    }
    if ( !defined $config{ $account }{'skip_mention'} ) {
        check_mentions( $account );
    }
}

write_config %config;
exit;



sub get_accounts {
    my @accounts;

    if ( $opt{'a'} ) {
        push @accounts, $opt{'a'};
    }
    else {
        foreach my $section ( keys %config ) {
            next if '' eq $section;
            push @accounts, $section;
        }
    }
    return @accounts;
}
sub check_direct_messages {
    my $account = shift;

    my $last_dm  = $config{ $account }{'last_dm'} || 1;
    my $dms      = $twitter->direct_messages( { since_id => $last_dm } );

    foreach my $dm ( @{ $dms } ) {
        my $from = $dm->{'sender_screen_name'};
        my $body = $dm->{'text'};
        my $id   = $dm->{'id'};

        if ( $id > $last_dm ) {
            $last_dm = $id;
        }

        my $message = sprintf "%s: %s\n", $from, $body;
        status( $message );

        $prowl->add(
                application => 'Twitter DM',
                event       => $account,
                description => $message
            );
    }

    $config{ $account }{'last_dm'} = $last_dm;
}
sub check_mentions {
    my $account = shift;

    my $last_mention = $config{ $account }{'last_mention'} || 1;
    my $mentions     = $twitter->mentions( { since_id => $last_mention } );

    foreach my $mention ( @{ $mentions } ) {
        my $from = $mention->{'user'}{'screen_name'};
        my $body = $mention->{'text'};
        my $id   = $mention->{'id'};

        if ( $id > $last_mention ) {
            $last_mention = $id;
        }

        my $message = sprintf "%s: %s\n", $from, $body;
        status( $message );

        $prowl->add(
                application => 'Twitter Mention',
                event       => $account,
                description => $message
            );
    }

    $config{ $account }{'last_mention'} = $last_mention;
}
sub status {
    my $text = shift;

    print "${text}\n" if $opt{'s'};
}