#!/usr/bin/perl

use strict;
use warnings;
use Date::Parse;
use FS::UID qw( adminsuidsetup );
use FS::Record qw( qsearchs );
use FS::cust_pkg;
use FS::msg_template;

adminsuidsetup shift or die 'Usage: cust_main-email_and_rebill username\n';

my $DRY_RUN = 1;
my $msgnum = 17;

my $sep1 = str2time('9/1/2017');
my $aug15 = str2time('8/15/2017') + 1802;

my $msg_template = qsearchs('msg_template', { 'msgnum' => $msgnum } )
  or die "unknown msg_template $msgnum\n";

while (<>) {
  chomp;
  my $pkgnum = $_;

  #find the package
  my $cust_pkg = qsearchs('cust_pkg', { 'pkgnum'=>$pkgnum } )
    or die "pkgnum $pkgnum not found\n";

  #reset its next bill date back to sep 1
  $cust_pkg->set('bill', $sep1);
  unless ( $DRY_RUN ) {
    warn "updating cust_pkg $pkgnum bill to $sep1\n";
    my $error = $cust_pkg->replace;
    die $error if $error;
  } else {
    warn "DRY RUN: would update cust_pkg $pkgnum bill to $sep1\n";
  }

  #customer
  my $cust_main = $cust_pkg->cust_main;
  my $custnum = $cust_main->custnum;

  #send the custoemr a notice
  unless ( $DRY_RUN ) {
    warn "emailing msg_template $msgnum to customer $custnum\n";
    $msg_template->send( 'cust_main' => $cust_main,
                         'object'    => $cust_main,
                       );
  } else {
    warn "DRY RUN: emailing msg_template $msgnum to customer $custnum\n";
  }

  #bill the package
  unless ( $DRY_RUN ) {
    warn "billing customer $custnum for package $pkgnum as of $sep1\n";
    $cust_main->bill( 'time'         => $sep1,
                      'invoice_time' => $aug15,
                      'pkg_list'     => [ $cust_pkg ],
                    );
  } else {
    warn "DRY RUN: billing customer $custnum for package $pkgnum as of $sep1\n";
  }

  #something about removing their pending batch payment??
  #hmm, there doesn't appear to be anything in a batch
  #dating the invoices aug 15th will ensure payments for them are batched

  #events will take care of the rest...

}

1;