#!/usr/bin/perl

use Modern::Perl;

use CGI qw ( -utf8 );

use C4::Auth qw( checkauth );
use C4::Output;
use DateTime;

use C4::Calendar;
use Koha::DateUtils qw( dt_from_string );

my $input = CGI->new;
my $op    = $input->param('op') // q{};
my $dbh   = C4::Context->dbh();

checkauth( $input, 0, { tools => 'edit_calendar' }, 'intranet' );

our $branchcode = $input->param('showBranchName');
my $originalbranchcode = $branchcode;
our $weekday     = $input->param('showWeekday');
our $day         = $input->param('showDay');
our $month       = $input->param('showMonth');
our $year        = $input->param('showYear');
our $title       = $input->param('showTitle');
our $description = $input->param('showDescription');
our $holidaytype = $input->param('showHolidayType');
my $datecancelrange_dt = eval { dt_from_string( scalar $input->param('datecancelrange') ) };
my $calendardate       = sprintf( "%04d-%02d-%02d", $year, $month, $day );
our $showoperation = $input->param('showOperation');
my $allbranches = $input->param('allBranches');

$title || ( $title = '' );
if ($description) {
    $description =~ s/\r/\\r/g;
    $description =~ s/\n/\\n/g;
} else {
    $description = '';
}

# We make an array with holiday's days
our @holiday_list;
if ($datecancelrange_dt) {
    my $first_dt = DateTime->new( year => $year, month => $month, day => $day );

    for ( my $dt = $first_dt->clone() ; $dt <= $datecancelrange_dt ; $dt->add( days => 1 ) ) {
        push @holiday_list, $dt->clone();
    }
}

if ( $op eq 'cud-edit' && $allbranches ) {
    my $libraries = Koha::Libraries->search;
    while ( my $library = $libraries->next ) {
        edit_holiday(
            $showoperation, $library->branchcode, $weekday, $day, $month, $year, $title, $description,
            $holidaytype,   @holiday_list
        );
    }
} elsif ( $op eq 'cud-edit' ) {
    edit_holiday(
        $showoperation, $branchcode, $weekday, $day, $month, $year, $title, $description, $holidaytype,
        @holiday_list
    );
}

print $input->redirect("/cgi-bin/koha/tools/holidays.pl?branch=$originalbranchcode&calendardate=$calendardate");

sub edit_holiday {
    ( $showoperation, $branchcode, $weekday, $day, $month, $year, $title, $description, $holidaytype, @holiday_list ) =
        @_;
    my $calendar = C4::Calendar->new( branchcode => $branchcode );

    if ( $showoperation eq 'exception' ) {
        $calendar->insert_exception_holiday(
            day         => $day,
            month       => $month,
            year        => $year,
            title       => $title,
            description => $description
        );
    } elsif ( $showoperation eq 'exceptionrange' ) {
        if (@holiday_list) {
            foreach my $date (@holiday_list) {
                $calendar->insert_exception_holiday(
                    day         => $date->{local_c}->{day},
                    month       => $date->{local_c}->{month},
                    year        => $date->{local_c}->{year},
                    title       => $title,
                    description => $description
                );
            }
        }
    } elsif ( $showoperation eq 'cud-edit' ) {
        if ( $holidaytype eq 'weekday' ) {
            my $isHoliday = $calendar->isHoliday( $day, $month, $year );
            if ($isHoliday) {
                $calendar->ModWeekdayholiday(
                    weekday     => $weekday,
                    title       => $title,
                    description => $description
                );
            } else {
                $calendar->insert_week_day_holiday(
                    weekday     => $weekday,
                    title       => $title,
                    description => $description
                );
            }
        } elsif ( $holidaytype eq 'daymonth' ) {
            my $isHoliday = $calendar->isHoliday( $day, $month, $year );
            if ($isHoliday) {
                $calendar->ModDaymonthholiday(
                    day         => $day,
                    month       => $month,
                    title       => $title,
                    description => $description
                );
            } else {
                $calendar->insert_day_month_holiday(
                    day         => $day,
                    month       => $month,
                    title       => $title,
                    description => $description
                );
            }
        } elsif ( $holidaytype eq 'ymd' ) {
            my $isHoliday = $calendar->isHoliday( $day, $month, $year );
            if ($isHoliday) {
                $calendar->ModSingleholiday(
                    day         => $day,
                    month       => $month,
                    year        => $year,
                    title       => $title,
                    description => $description
                );
            } else {
                $calendar->insert_single_holiday(
                    day         => $day,
                    month       => $month,
                    year        => $year,
                    title       => $title,
                    description => $description
                );
            }
        } elsif ( $holidaytype eq 'exception' ) {
            my $isHoliday = $calendar->isHoliday( $day, $month, $year );
            if ($isHoliday) {
                $calendar->ModExceptionholiday(
                    day         => $day,
                    month       => $month,
                    year        => $year,
                    title       => $title,
                    description => $description
                );
            } else {
                $calendar->insert_exception_holiday(
                    day         => $day,
                    month       => $month,
                    year        => $year,
                    title       => $title,
                    description => $description
                );
            }
        }
    } elsif ( $showoperation eq 'cud-delete' ) {
        $calendar->delete_holiday(
            weekday => $weekday,
            day     => $day,
            month   => $month,
            year    => $year
        );
    } elsif ( $showoperation eq 'deleterange' ) {
        if (@holiday_list) {
            foreach my $date (@holiday_list) {
                $calendar->delete_holiday_range(
                    weekday => $weekday,
                    day     => $date->{local_c}->{day},
                    month   => $date->{local_c}->{month},
                    year    => $date->{local_c}->{year}
                );
            }
        }
    } elsif ( $showoperation eq 'deleterangerepeat' ) {
        if (@holiday_list) {
            foreach my $date (@holiday_list) {
                $calendar->delete_holiday_range_repeatable(
                    weekday => $weekday,
                    day     => $date->{local_c}->{day},
                    month   => $date->{local_c}->{month}
                );
            }
        }
    } elsif ( $showoperation eq 'deleterangerepeatexcept' ) {
        if (@holiday_list) {
            foreach my $date (@holiday_list) {
                $calendar->delete_exception_holiday_range(
                    weekday => $weekday,
                    day     => $date->{local_c}->{day},
                    month   => $date->{local_c}->{month},
                    year    => $date->{local_c}->{year}
                );
            }
        }
    }
}