#!/usr/bin/perl

use strict;
use warnings;
use Time::HiRes qw(usleep nanosleep);
use File::Spec::Functions;

use autodie qw(:all);
use DBI;

use Data::Dumper;

use Date::Manip::DM5;
use Supporters;
use Encode qw(encode decode);
use Email::MIME::RFC2047::Encoder;
use utf8;
use IPC::Shareable;

require 'bean-query-daemon-lib.pl';

my $TOTAL_GROUPS = 1;

binmode STDOUT, ":utf8";

######################################################################
sub GetMostInformalName ($$) {
  my($sp, $id) = @_;
  my($pa) = $sp->getBestPostalAddress($id);
  return $pa->{first_name} if (defined $pa and defined $pa->{first_name} and $pa->{first_name} !~ /^\s*$/);
  my $displayName = $sp->getDisplayName($id);
  return $displayName;
}
######################################################################
my %SEEN_SERVERS;
sub EmailControlledByGoogle ($) {
  my($email) = @_;
  my $isGoogle = 0;
  die "$email that is unparasable" unless ($email =~ /^\s*[^@]+@(\S+)\s*$/);
  my $domain = $1;
  if (not defined $SEEN_SERVERS{$domain}) {
    my $isFound = 0;
    open(my $fh , "-|", '/usr/bin/host', '-t', 'mx', $domain);
    while (my $line = <$fh>) {
      if ($line =~ /(gmail|google|googlemail)/i) {
        $isFound = 1;
      }
    }
    $SEEN_SERVERS{$domain} = $isFound;
  }
  return ($SEEN_SERVERS{$domain});
}
######################################################################

my $encoder = Email::MIME::RFC2047::Encoder->new();

my $TODAY = UnixDate(ParseDate("today"), '%Y-%m-%d');
my $FORTY_FIVE_DAYS_AGO = UnixDate(ParseDate("45 days ago"), '%Y-%m-%d');
my $SIXTY_DAYS_AGO = UnixDate(ParseDate("60 days ago"), '%Y-%m-%d');
my $NINETY_DAYS_AGO = UnixDate(ParseDate("90 days ago"), '%Y-%m-%d');
my $ONE_AND_HALF_YEARS_AGO = UnixDate(ParseDate("18 months ago"), '%Y-%m-%d');
my $ONE_YEAR_AGO = UnixDate(ParseDate("12 months ago"), '%Y-%m-%d');
my $NINE_MONTHS_AGO = UnixDate(ParseDate("9 months ago"), '%Y-%m-%d');
my $FIFTEEN_MONTHS_AGO = UnixDate(ParseDate("15 months ago"), '%Y-%m-%d');
my $NINETEEN_MONTHS_AGO = UnixDate(ParseDate("19 months ago"), '%Y-%m-%d');
my $THREE_TWENTY_DAYS_AGO = UnixDate(ParseDate("320 days ago"), '%Y-%m-%d');
my $THREE_MONTHS_AGO = UnixDate(ParseDate("3 months ago"), '%Y-%m-%d');
my $FY_2019_FUNDRAISER_START = UnixDate(ParseDate("2019-11-26 08:00"), '%Y-%m-%d');
my $VIZIO_ANNOUNCE_DATE = UnixDate(ParseDate("2021-10-19 00:01"), '%Y-%m-%d');
my $MARCH_1_2020 = UnixDate(ParseDate("2020-03-01 08:00"), '%Y-%m-%d');
my $MARCH_1_2023 = UnixDate(ParseDate("2023-03-01 08:00"), '%Y-%m-%d');
my $JAN_15_2022 = UnixDate(ParseDate("2022-01-15 23:59"), '%Y-%m-%d');
my $JUL_11_2023 = UnixDate(ParseDate("2023-07-11 23:59"), '%Y-%m-%d');
my $JAN_15_2023 = UnixDate(ParseDate("2023-01-15 23:59"), '%Y-%m-%d');
my $NOV_19_2018 = UnixDate(ParseDate("2018-11-19 08:00"), '%Y-%m-%d');
my $NOV_20_2019 = UnixDate(ParseDate("2018-11-20 08:00"), '%Y-%m-%d');
my $JAN_31_2019 = UnixDate(ParseDate("2019-01-31 08:00"), '%Y-%m-%d');
my $NOV_24_2020 = UnixDate(ParseDate("2020-11-24 00:00"), '%Y-%m-%d');
my $DEC_8_2020 = UnixDate(ParseDate("2020-12-08 00:00"), '%Y-%m-%d');
my $DEC_22_2020 = UnixDate(ParseDate("2020-12-22 00:00"), '%Y-%m-%d');
my $NOV_20_2020 = UnixDate(ParseDate("2020-11-20 00:00"), '%Y-%m-%d');
my $NOV_20_2022 = UnixDate(ParseDate("2022-11-20 00:00"), '%Y-%m-%d');
my $JAN_20_2019 = UnixDate(ParseDate("2019-01-20 08:00"), '%Y-%m-%d');
my $JAN_15_2020 = UnixDate(ParseDate("2020-01-15 08:00"), '%Y-%m-%d');
my $JAN_31_2021 = UnixDate(ParseDate("2021-01-31 20:00"), '%Y-%m-%d');
my $JAN_31_2022 = UnixDate(ParseDate("2022-01-31 20:00"), '%Y-%m-%d');
my $JAN_15_2019 = UnixDate(ParseDate("2019-01-15 08:00"), '%Y-%m-%d');
my $JAN_16_2023 = UnixDate(ParseDate("2023-01-16 08:00"), '%Y-%m-%d');
my $JAN_1_2024 = UnixDate(ParseDate("2024-01-01 08:00"), '%Y-%m-%d');
my $JAN_1_2020 = UnixDate(ParseDate("2020-01-01 08:00"), '%Y-%m-%d');
my $JAN_1_2021 = UnixDate(ParseDate("2021-01-01 08:00"), '%Y-%m-%d');
my $JAN_1_2022 = UnixDate(ParseDate("2022-01-01 08:00"), '%Y-%m-%d');
my $JAN_1_2023 = UnixDate(ParseDate("2023-01-01 00:00"), '%Y-%m-%d');
my $JUN_1_2017 = UnixDate(ParseDate("2017-06-01 08:00"), '%Y-%m-%d');
my $JAN_31_2017 = UnixDate(ParseDate("2017-01-31 08:00"), '%Y-%m-%d');
my $START_OF_CY_2020_FUNDRAISER = UnixDate(ParseDate("2020-11-24 00:00"), '%Y-%m-%d');
my $MAR_1_2020 = UnixDate(ParseDate("2020-03-01 08:00"), '%Y-%m-%d');
my $MAR_1_2019 = UnixDate(ParseDate("2019-03-01 08:00"), '%Y-%m-%d');
my $MAR_1_2016 = UnixDate(ParseDate("2016-03-01 08:00"), '%Y-%m-%d');
my $OCT_1_2020 = UnixDate(ParseDate("2020-10-01 08:00"), '%Y-%m-%d');
my $END_LAST_YEAR = '2020-12-31';
my $OCT_19_2021 = UnixDate(ParseDate("2021-10-19 08:00"), '%Y-%m-%d');
my $NOV_2_2021 = UnixDate(ParseDate("2021-11-02 08:00"), '%Y-%m-%d');
my $NOV_21_2021 = UnixDate(ParseDate("2021-11-21 08:00"), '%Y-%m-%d');
my $NOV_22_2022 = UnixDate(ParseDate("2022-11-22 08:00"), '%Y-%m-%d');
my $OCT_1_2023 = UnixDate(ParseDate("2023-10-01 08:00"), '%Y-%m-%d');


if (@ARGV < 6) {
  print STDERR "usage: $0 <SUPPORTERS_SQLITE_DB_FILE> <FROM_ADDRESS> <EMAIL_TEMPLATE_SUFFIX> <BAD_ADDRESS_LIST_FILE> <MONTHLY_SEARCH_REGEX> <ANNUAL_SEARCH_REGEX>  <GLUE> <VERBOSE>\n";
  exit 1;
}

my($SUPPORTERS_SQLITE_DB_FILE, $FROM_ADDDRESS, $EMAIL_TEMPLATE_SUFFIX, $BAD_ADDRESS_LIST_FILE, $MONTHLY_SEARCH_REGEX, $ANNUAL_SEARCH_REGEX, $GLUE, $VERBOSE) = @ARGV;
$VERBOSE = 0 if not defined $VERBOSE;

my %groupLines;
foreach my $group (1 .. $TOTAL_GROUPS) {
  $groupLines{$group} = [];
  my %ff = ($group => "group-${group}$EMAIL_TEMPLATE_SUFFIX",
            "${group}-no-html", "no-html-group-${group}$EMAIL_TEMPLATE_SUFFIX");
  foreach my $subgroup (sort keys %ff) {
    open(my $emailFH, "<", $ff{$subgroup});
    binmode $emailFH, ":utf8";
    @{$groupLines{$subgroup}} = <$emailFH>;
    close $emailFH;
  }
}
foreach my $group (($TOTAL_GROUPS+1) ... 999) {
  my $file = "group-${group}" . $EMAIL_TEMPLATE_SUFFIX;
  die "$file exists but you didn't include it in any groups" if -f $file;
}
my %skip = ();
sub update_skips {
  my $skips = shift;
  my $source_filename = shift;
  open(my $skipFH, '<', $source_filename);
  while (my $email = <$skipFH>) {
    next if $email =~ /^\s*#/;
    chomp $email;
    $skips->{$email} = $source_filename;
  }
  close $skipFH;
}
if (defined $BAD_ADDRESS_LIST_FILE) {
  update_skips(\%skip, $BAD_ADDRESS_LIST_FILE);
}
$GLUE = "BeAn" unless defined $GLUE and $GLUE !~ /^\s*$/;

BeancountQueryInitialize($GLUE);
my $dbh = DBI->connect("dbi:SQLite:dbname=$SUPPORTERS_SQLITE_DB_FILE", "", "",
                               { RaiseError => 1, sqlite_unicode => 1 })
  or die $DBI::errstr;

my $fileName = BeancountQuerySubmit(<<SUPPORTESR_DB_READ
SELECT ANY_META("program") as program, date, ANY_META("entity") as entity, NUMBER(COST(position))
    WHERE account ~ "^Income" AND ANY_META("project") ~ "Conservancy"
      AND ANY_META("program") ~ "Conservancy:(Supporters?|Sustainers?|Match Pledge):" AND NOT ANY_META("entity") ~ "^\\s*\$"
SUPPORTESR_DB_READ
                                        , 'text');
open(my $fh, "<", $fileName);

my $sp = new Supporters($dbh, $fh, { monthly => $MONTHLY_SEARCH_REGEX, annual => $ANNUAL_SEARCH_REGEX});


my %groupCounts;
for my $ii (0 .. $TOTAL_GROUPS) { $groupCounts{$ii} = 0; }

my(@supporterIds) = $sp->findDonor({});
open(my $idsInUSAFH, "<", catfile($ENV{CONSERVANCY_REPOSITORY}, 'Fundraising/Supporters/',
                                 'donor-ids-we-expect-are-probably-usa.txt'));
my %idsKnownToBeInUSA;
while (my $idInUSA = <$idsInUSAFH>) {
  chomp $idInUSA;
  $idsKnownToBeInUSA{$idInUSA} = 1;
}
close $idsInUSAFH;

my $totalSupportersSent = 0;

MAIN_SUPPORTER_LOOP:
foreach my $id (sort { $a <=> $b } @supporterIds) {
  next unless $sp->isSupporter($id);
  my $donorType = lc($sp->getType($id));
  my $expiresOn = $sp->supporterExpirationDate($id);
  my $isLapsed = ( (not defined $expiresOn) or $expiresOn lt $TODAY);
  my $amount = $sp->donorTotalGaveInPeriod(donorId => $id);
  my $lastGaveDate = $sp->donorLastGave($id);
  my $firstGaveDate = $sp->donorFirstGave($id);
  my $nineMonthsSinceFirstGave = UnixDate(DateCalc(ParseDate($firstGaveDate), "+ 9 months"), '%Y-%m-%d');
  # Compute "likely USA"
  my $likelyUSA = 0;
  my(%postalAddresses) = $sp->getPostalAddresses($id);
  $likelyUSA = 1 if defined $idsKnownToBeInUSA{$id};
  if (not $likelyUSA) {
    foreach my $pid (sort {$a <=> $b} keys %postalAddresses) {
      my $postalAddress = $postalAddresses{$pid};
      if (defined $postalAddress and (not defined $postalAddress->{country} or $postalAddress->{country} =~ /^\s*$/ or
                                      $postalAddress->{country} =~ /^\s*(United\s*States|U[\s\.]*S[\s\.]*A[\s\.]*|U\s*S)\s*$/mi)) {
        $likelyUSA = 1;
      }
    }
  }
  my $group = 0;
  my $specialContact = "";
  my $annualRenewalText = " ";
  # if (not $sp->emailOk($id)) {
  #   print "NOT-SENT: SUPPORTER $id: supporter is unsubscribed from mass emails.\n";
  #   $groupCounts{0}++;
  #   next;
  # }
  # Set up emails first in case we want to use it in the group tests below
  my %emails;
  my $emailP = $sp->getPreferredEmailAddress($id);
  if (defined $emailP) {
    $emails{$emailP} = {};
  } else {
    %emails = $sp->getEmailAddresses($id);
  }
  my @badEmails;
  my $atLeastOneSkipHere = 0;
  foreach my $email (keys %emails) {
    if (defined $skip{$email}) {
      $atLeastOneSkipHere = 1;
      delete $emails{$email};
      push(@badEmails, $email);
    }
  }
  if (scalar(keys %emails) <= 0) {
    print "NOT-SENT: SUPPORTER $id: these email address(es) is/were bad: ",
      join(",", @badEmails), "\n";
    $group = 0; $groupCounts{$group}++;
    next;
  }
  my(@emails) = keys(%emails);
  if (not defined $lastGaveDate) {
    print "NOT-SENT: SUPPORTER $id: WARNING: very strange, this $donorType donor has never given at all, so not emailing because of that\n";
    $group = 0;
    $groupCounts{$group}++;
    next;
  } elsif (not defined $firstGaveDate) {
    print "NOT-SENT: SUPPORTER $id: WARNING: very strange, this $donorType donor has never given at all, so not emailing because of that\n";
    $group = 0;
    $groupCounts{$group}++;
    next;
  }
  if (not $sp->emailOk($id)) {
    my $req = $sp->getRequest({donorId => $id, requestType => 'contact-setting'});
    $group = 0; $groupCounts{$group}++;
    if (defined $req and defined $req->{requestConfiguration} and
        $req->{requestConfiguration} eq 'only-one-annual-renewal-notice')  {
      print "NOT-SENT: SUPPORTER $id: has requested only one annual-renewal notice, and this mailing is not that.\n";
      next;
    } else {
      print "NOT-SENT: SUPPORTER $id: has requested no email contact ($req->{requestConfiguration}) so no email will be sent.\n";
      next;
    }
    print "NOT-SENT: SUPPORTER $id: WARNING: WEIRD ERROR THAT WE COULD NOT FIGURE OUT WHY THIS ONE WANTED NO EMAIL?  BUT WE DID NOT SEND\n";
    next;
  }
  if ($lastGaveDate ge $NOV_22_2022 and $lastGaveDate le $JAN_16_2023) {
    $group = 1;
  } elsif ($lastGaveDate ge $NOV_2_2021 and $lastGaveDate le $JAN_15_2022) {
    $group = 1;
  } elsif ($lastGaveDate le $NOV_22_2022) {
    $group = 0; # Gave really really recently, don't send
    $groupCounts{$group}++;
    print "NOT-SENT: SUPPORTER $id: supporter gave too long ago, skipping\n";
    next;
  } elsif ($lastGaveDate ge $JAN_16_2023) {
    $group = 0; # Gave really really recently, don't send
    $groupCounts{$group}++;
    print "NOT-SENT: SUPPORTER $id: supporter gave to recently, skipping.\n";
    next;
   } else {
    BeancountQueryComplete();
    die "Supporter $id: not in a group, donor type \"$donorType\" who last gave on \"$lastGaveDate\"";
  }
  if ($group <= 0) {
    print "NOT-SENT: SUPPORTER $id: WARNING: Fit in no specified group: Type: $donorType, Last Gave: $lastGaveDate, $firstGaveDate, $likelyUSA, @emails\n";
    $groupCounts{0}++;
    next;
  }
  $expiresOn = "" if not defined $expiresOn;
  my $rtTicket = $sp->_getDonorField('rt_ticket', $id);
  $rtTicket = "" if not defined $rtTicket;
  $rtTicket = "[sfconservancy.org #$rtTicket]" if $rtTicket ne "";
  foreach my $emailTo (@emails) {
    my $displayName = $sp->getDisplayName($id);
    my $fullEmailLine = "";
    if (defined $displayName) { $fullEmailLine .= $encoder->encode_phrase($displayName) . " "; }
    $fullEmailLine .= "<$emailTo>";
    my $thisEmailGroup = $group;
    $thisEmailGroup = "${group}-no-html" if (EmailControlledByGoogle($emailTo));

    open(my $sendmailFH, "|-", '/usr/sbin/sendmail', '-f', $FROM_ADDDRESS, '-oi', '-oem', '--', $emailTo);
    binmode $sendmailFH, ":utf8";
    print $sendmailFH "To: $fullEmailLine\n";
    $displayName = GetMostInformalName($sp, $id);
    foreach my $line (@{$groupLines{$thisEmailGroup}}) {
      if (not defined $displayName or $displayName =~ /^\s*$/ ) {
        BeancountQueryComplete();
        die "no displayname for this item";
      }
      my $thisLine = $line;   # Note: This is needed, apparently $line is by reference?
      $thisLine =~ s/FIXME_DISPLAYNAME/$displayName/g;
      $thisLine =~ s/FIXME_SUPPORTER_ID/$id/g;
      $thisLine =~ s/FIXME_RT_TICKET_DESCRIPTOR/$rtTicket/g;
      $thisLine =~ s/FIXME_ANNUAL_ONLY/$annualRenewalText/g;
      print $sendmailFH $thisLine;
    }
    close $sendmailFH;
    usleep(41000);
    $groupCounts{$thisEmailGroup}++;
  }
  $totalSupportersSent++;
  print "SENT: SUPPORTER $id: Group $group: $specialContact", " Count: ", scalar(@emails), ": ";
  my $moreThanOneEmail = 0;
  foreach my $email (sort {$a cmp $b } @emails) {
    print ", " if $moreThanOneEmail; $moreThanOneEmail++;
    print $email;
    if (EmailControlledByGoogle($email)) { print " (NO-HTML VERSION)"; }
  }
  print "\n";
}
BeancountQueryComplete();
print "\n\n";
my $totalSent = 0;
foreach my $group (sort keys %groupCounts) {
  print "TOTAL IN GROUP $group: $groupCounts{$group}\n";
  no warnings 'numeric';
  $totalSent += $groupCounts{$group} if $group > 0;
}
print "\n\nTOTAL EMAILS SENT:     $totalSent\n";
print     "TOTAL SUPPORTERS SENT: $totalSupportersSent\n";
print "\nNOTE: For Sustainers with more than one valid email address on file, they are counted for each email sent.  That's why two totals above\n";

###############################################################################
#
# Local variables:
# compile-command: "perl -c send-supporter-emails-by-category.plx"
# End: