#!/usr/bin/perl

use strict;
use warnings;
use Text::CSV;
use FS::UID qw(adminsuidsetup);
use FS::cust_main_county;
use FS::Record qw(qsearch qsearchs dbh);
use DateTime::Format::Natural;
use FS::lata;
use FS::msa;
use FS::cust_main;
use FS::cust_main::Search qw(smart_search);
use FS::did_order;
use FS::did_order_item;
use FS::rate_center;
use FS::phone_avail;
use FS::did_vendor;
use FS::svc_phone;
use Data::Dumper;
use Time::HiRes qw(usleep ualarm gettimeofday tv_interval);

print "started time=".time."\n";

#### SET THESE! #################################
my $file = '/home/levinse/dids4.csv';
my $did_vendor_id = 1; 
my $dry = 0; 
my $internal_diddb_exportnum = 1; # IMPORTANT: set this to the correct exportnum or everything will go in wrong into phone_avail

# optionally set this one (probably not)
my %custname2num = (); # MyCust => 12345,
################################################

my $user = shift;
adminsuidsetup $user;

local $SIG{HUP} = 'IGNORE';
local $SIG{INT} = 'IGNORE';
local $SIG{QUIT} = 'IGNORE';
local $SIG{TERM} = 'IGNORE';
local $SIG{TSTP} = 'IGNORE';
local $SIG{PIPE} = 'IGNORE';

my $oldAutoCommit = $FS::UID::AutoCommit;
local $FS::UID::AutoCommit = 0;
my $dbh = dbh;
my $max_date = time;
my $min_date = 1262304000; # January 1st 2010
my %did_order = ();
my %rate_center = ();
my %rate_center_abbrev = ();
my %cust2pkg = ();
my %msamap = ( 
# YOU CANNOT USE THE STATE/NPA/LATA OF A DID TO TRY TO FIND ITS MSA. IT HAS 
# NOTHING IN COMMON WITH THE STATE OF THE MSA. THERE IS SIMPLY INSUFFICIENT
# DATA IN THE CSV FILE TO DETERMINE CANONICAL MSA WITHOUT THIS:
 'Washington DC' => 47900,
 'Fort Lauderdale' => 33100,
 'Cambridge' => 14460,
 'Boise' => 14260,
 'New York' => 35620,
 'Aberdeen' => 10100,
 'Bloomington' => 14020,
 'Las Vegas' => 29820,
 'Madison' => 31540,
 'Miami' => 33100,
 'Jackson' => 27140,
 'St Cloud' => 41060,
 'Stratford' => 14860,
 
# more hax upon hax (the above are unique, no issues)
 'Portland OR' => 38900, 
 'Portland ME' => 38860, 
);
my $skipto = 0; 
my $limit = 0;
my $linenum = 1;
my $debug = 0;

# cache LATA and MSA tables in one query for performance
my @latas = qsearch('lata', {});
my %latas = map { $_->latanum => $_->description } @latas;

my @msas = qsearch('msa', {});
my %msas = map { $_->msanum => $_->description } @msas;

# now add in the brain-dead LATA hacks
$latas{636} = 'BRAINERD-FARGO ND';
$latas{920} = 'CONNECTICUT';
$latas{334} = 'AUBURN-HUNTINGTON IN';
$latas{232} = 'NORTHEAST - PA';
$latas{460} = 'SOUTHEAST FL GR-EA';
$latas{952} = 'TAMPA FLORIDA';
$latas{524} = 'KANSAS CITY';

my $parser = new DateTime::Format::Natural( 'time_zone' => 'local' );
sub parsedt {
    my ($dt,$min,$max) = (shift,shift,shift);
    $dt = "$dt 00:00:00";
    my $epoch = $parser->parse_datetime($dt);
    warn "dt='$dt' min=$min max=$max epoch=$epoch\n";
    return $epoch->epoch 
        if ($parser->success && $epoch->epoch >= $min && $epoch->epoch <= $max);
    fatal("invalid date $dt (min=$min, max=$max)");
}

sub msatest {
    my ($their,$our) = (shift,shift);
    my $a = $our;
    $a =~ s/,.*?$//;
    return 1 if $a eq $their;
    return 1 if ($our =~ /^([\w\s]+)-/ && $1 eq $their);
    0;
}

sub trim {
    my $str = shift;
    $str =~ s/^\s+|\s+$//g;
    $str;
}

sub suffer {
    my $linenum = shift;
    my @columns = @_;

    my $did = trim($columns[0]);
    my $npa = trim($columns[1]);
    my $state = trim($columns[2]);
    my $rate_center_abbrev = trim($columns[3]);
    my $rate_center = trim($columns[4]);
    my $customer = trim($columns[5]);
    my $submitted = parsedt(trim($columns[7]),$min_date,$max_date);

    my $ordernum = trim($columns[8]);
    return if $ordernum eq 'Unknown'; 

    my $confirmed = parsedt(trim($columns[9]),$submitted,$max_date);

    # sometimes, we're in a non-Y2K-compliant bullshit format, differing from
    # all the other dates. Other times, we randomly change formats multiple times
    # in the middle of the file for absolutely no reason...wtf
    my $received = trim($columns[10]); 
    if ( $received =~ /^(\d{1,2})\/(\d{1,2})\/(\d{2})$/ ) {
        $received = $2."/".$1."/20".$3;
    } elsif ( $received !~ /^\d{2}\/\d{2}\/\d{4}$/ ) {
        fatal("invalid received date $received");
    }
    if ( $ordernum == 300383 ) { # another hack due to bad data
        $received = parsedt($received,1,$max_date) 
    } else {
        $received = parsedt($received,$confirmed,$max_date);
    }

    my $latanum = trim($columns[12]);
    my $latadesc = trim($columns[13]);
    my $msadesc = trim($columns[14]);

    fatal("invalid DID and/or NPA or NPA doesn't match DID")
        unless ($did =~ /^(\d{3})\d{7}$/ && $npa == $1);
    fatal("invalid state, order #, LATA #, or LATA description")
        unless ($state =~ /^[A-Z]{2}$/  && ($ordernum =~ /^\d+$/ || $ordernum eq 'Test') # more hacks
                                        && $latanum =~ /^\d{3}$/ 
                                        && $latadesc =~ /^[\w\s\-]+$/);


    ### LATA ###

    fatal("no lata found for latanum $latanum") unless exists($latas{$latanum});

    # unsurprisingly, our idea of a LATA name doesn't always match their idea 
    # of the same. Specifically, they randomly expand the state portion and
    # abbreviate it arbitrarily

    my $ourdesc = $latas{$latanum};

    # strip off the fixed state abbreviation portion in ours
    $ourdesc =~ s/ ..$//;
    
    # strip off the variable state abbreviation (or full name) portion in theirs
    $latadesc =~ s/\s\w+$// unless uc($ourdesc) eq uc($latadesc); # yeah...long story :(

    fatal("their LATA description '$latadesc' doesn't match our LATA description '$ourdesc'")
        unless (uc($ourdesc) eq uc($latadesc) || $latanum == 460);


    ### MSA ###

    my $msanum = -1;
    
    # XXX: no idea what the MSA is for Danbury, so discard it for now and deal with it manually/later
    $msadesc = '' if $msadesc eq 'Danbury';

    # hax on hax
    $msadesc = 'Portland OR' if ($msadesc eq 'Portland' && $state eq 'OR');
    $msadesc = 'Portland ME' if ($msadesc eq 'Portland' && $state eq 'ME');

    # not everything in their file has a MSA
    if ( $msadesc =~ /^[\w\s]+$/ ) {

        # their idea of a MSA differs from our idea of it
        if ( exists($msamap{$msadesc}) ) {
            $msanum = $msamap{$msadesc};
        }
        else {
            my @msa = grep { msatest($msadesc,$_->description) } @msas;
            fatal("multiple MSA matches for '$msadesc'") if(scalar(@msa) > 1);
            $msanum = $msa[0]->msanum if scalar(@msa) == 1;
            $msamap{$msadesc} = $msanum if $msanum != -1;
        }
        fatal("msa $msadesc not found") if $msanum == -1;
        warn "$msadesc matched msanum $msanum for line $linenum\n" if $debug;
    }


    ### RATE CENTER ###
    
    if ( exists $rate_center{$rate_center} ) {
        fatal("rate center abbreviation for '$rate_center' doesn't exist or doesn't match '$rate_center_abbrev'")
            unless ( exists $rate_center_abbrev{$rate_center} &&
                      $rate_center_abbrev{$rate_center} eq $rate_center_abbrev);
    } else {
        print "creating new rate center '$rate_center' '$rate_center_abbrev'\n";
        my $rc = new FS::rate_center{ description => $rate_center };
        my $error = $rc->insert;
        fatal("can't insert rate center '$rate_center' '$rate_center_abbrev': $error") 
            if $error;
        $rate_center{$rate_center} = $rc->ratecenternum;
        $rate_center_abbrev{$rate_center} = $rate_center_abbrev;
    }
    my $ratecenternum = $rate_center{$rate_center};
   

    my $order = order($ordernum,$submitted,$confirmed,$received,$customer);
    my $order_item = order_item($order,$npa,$latanum,$state,$msanum,$ratecenternum);
    my $phone_avail = phone_avail($order,$state,$did,$rate_center,$latanum,$msanum);
    provision($did,$customer,$phone_avail) if $customer ne 'Stock';
    
    warn "Pass $linenum\n" if $debug;

    my $time = time;
    print "Done $linenum time=$time\n" if ($linenum % 100 == 0);
}

sub phone_avail {
    my ($order,$state,$did,$rate_center,$latanum,$msanum) 
                                        = (shift,shift,shift,shift,shift,shift);
    $did =~ /^(\d{3})(\d{3})(\d{4})$/;
    my $npa = $1;
    my $nxx = $2;
    my $station = $3;
    my %hash = (
        exportnum   => $internal_diddb_exportnum,
        countrycode => '1',
        state       => $state,
        npa         => $npa,
        nxx         => $nxx,
        station     => $station,
        name        => $rate_center,
        rate_center_abbrev => $rate_center_abbrev{$rate_center},
        ordernum    => $order->ordernum,
        latanum     => $latanum,
    );
    $hash{'msanum'} = $msanum if $msanum != -1;
    
    my $pa = new FS::phone_avail{ %hash };
    my $error = $pa->insert;
    fatal("can't insert phone_avail: $error") if $error;

    $pa;
}

sub order_item {
    my($order,$npa,$latanum,$state,$msanum,$ratecenternum) 
                                        = (shift,shift,shift,shift,shift,shift);
    my %msa = ();
    $msa{'msanum'} = $msanum if $msanum != -1;
    my $oi;
    my @order_item = $order->did_order_item; 
    foreach my $order_item ( @order_item ) {
        if($order_item->npa == $npa 
            && $order_item->latanum == $latanum 
            && $order_item->state eq $state 
            && $order_item->ratecenternum == $ratecenternum
            && (!$order_item->msanum || $order_item->msanum == $msanum)  ) {
            fatal("Multiple order items") if $oi;
            $oi = $order_item;
        }
    }
    
    if($oi) {
        $oi->quantity($oi->quantity+1);
        my $error = $oi->replace;
        fatal("can't replace order item: $error") if $error;
    } else {
        $oi = new FS::did_order_item{ ordernum   => $order->ordernum,
                                     npa        => $npa,
                                     latanum    => $latanum,
                                     state      => $state,
                                     quantity   => 1,
                                     ratecenternum => $ratecenternum,
                                     %msa, };
        my $error = $oi->insert;
        fatal("can't insert order item: $error") if $error;
    }

    fatal("wtf2") unless $oi;

    $oi;
}

sub order {
    my($vendor_order_id,$submitted,$confirmed,$received,$customer) 
                                            = (shift,shift,shift,shift,shift);
    
    my %cust = ();
    if ( $customer ne 'Stock' ) {
        if ( exists($custname2num{$customer}) ) {
            $cust{'custnum'} = $custname2num{$customer};
        } else {
            print "new customer case for '$customer'\n";
            my @cust_main = smart_search('search' => $customer);
            fatal(scalar(@cust_main) . " customers found for $customer") 
                unless scalar(@cust_main) == 1;
            my $cust_main = $cust_main[0];
            
            $cust{'custnum'} = $cust_main->custnum;
            $custname2num{$customer} = $cust_main->custnum; 
            $cust2pkg{$cust_main->custnum} = {};
            
            my @pkgs = $cust_main->ncancelled_pkgs;
            fatal("no packages") unless scalar(@pkgs);

            foreach my $pkg ( @pkgs ) {
                my @avail_part_svc = $pkg->available_part_svc;
                my @svcpart;
                foreach my $avail_part_svc ( @avail_part_svc ) {
                    if ($avail_part_svc->svcdb eq 'svc_phone') {
                        push @svcpart, $avail_part_svc->svcpart;
                    }
                }
                fatal("multiple svc_phone services") if scalar(@svcpart) > 1;
                fatal("multiple packages with svc_phone services") 
                    if (exists $cust2pkg{$cust_main->custnum}->{pkgnum}
                            && scalar(@svcpart));
                if(scalar(@svcpart) == 1) {
                    $cust2pkg{$cust_main->custnum}->{pkgnum} = $pkg->pkgnum;
                    $cust2pkg{$cust_main->custnum}->{svcpart} = $svcpart[0];
                }
            }

            fatal("no pkg/svc") 
                unless (exists $cust2pkg{$cust_main->custnum}->{pkgnum}
                        && exists $cust2pkg{$cust_main->custnum}->{svcpart});
        }
    }

    my $o;
    if( exists $did_order{$vendor_order_id} ) {
        $o = $did_order{$vendor_order_id};
#       warn "$submitted $confirmed $received $vendor_order_id".Dumper($o);
        fatal("vendor order #$vendor_order_id - order data differs from one item to another")
            unless ( ( abs($o->submitted-$submitted) < 5
                        || $o->vendor_order_id == 293011) # yet another bad data hack
                    && abs($o->confirmed-$confirmed) < 5
                    && abs($o->received-$received) < 5 
                   );
#        fatal("customer mismatch for vendor order #$vendor_order_id")
#           unless (    ($o->custnum && $cust{'custnum'} 
#                        && ($o->custnum == $cust{'custnum'} 
#                         || $vendor_order_id eq '293745' || $vendor_order_id eq '300001')
#                     )
#                    ||
#                   (!$o->custnum && !exists($cust{'custnum'}))
#             );
    } else {
        $o = new FS::did_order{ vendornum       => $did_vendor_id,
                                vendor_order_id => $vendor_order_id,
                                submitted       => $submitted,
                                confirmed       => $confirmed,
                                received        => $received,
                                %cust,          };
        my $error = $o->insert;
        fatal("can't insert vendor order #$vendor_order_id: $error") if $error;
        $did_order{$vendor_order_id} = $o;
    }

    fatal("wtf") unless $o;
    $o;
}

sub provision {
    my($did,$customer,$phone_avail) = (shift,shift,shift);

    local $FS::svc_Common::noexport_hack = 1;
    # because of the above, we now need to do the internal did db
    # export's job ourselves (set the svcnum for the DID in phone_avail)

    fatal("customer not found") unless exists $cust2pkg{$custname2num{$customer}};

    my $svc_phone = new FS::svc_phone({
            pkgnum  => $cust2pkg{$custname2num{$customer}}->{pkgnum},
            svcpart => $cust2pkg{$custname2num{$customer}}->{svcpart},
            countrycode => 1,
            phonenum    => $did,
        });
    
    # XXX: THIS LINE CAUSES PERFORMANCE TO DEGRADE
    # -unattaching the exports has no effect
    # -after each successive call, the time taken to complete 100 rows becomes greater
    # -commenting out this call results in a constant time taken to complete 100 rows
    my $error = $svc_phone->insert;

    fatal("can't insert svc_phone: $error") if $error;

    $phone_avail->svcnum($svc_phone->svcnum);
    $error = $phone_avail->replace;
    fatal("can't replace phone_avail: $error") if $error;

    '';
}

sub fatal {
    my $msg = shift;
    $dbh->rollback if $oldAutoCommit;
    die $msg;
}

my $csv = new Text::CSV;
open (CSV, "<", $file) or die $!;
print "Starting main loop time=".time."\n";
while (<CSV>) {
    if ( $linenum == 1 ) { # skip header
        $linenum++;
        next;
    }

    if( $skipto > $linenum ) { # debug stuff
        $linenum++;
        next;
    }

    last if $limit > 0 && $limit <= $linenum;

    # kept getting these errors for many lines:
    # "EIQ - Binary character inside quoted field, binary off"
    $_ =~ s/[^[:ascii:]]//g;

    if ($csv->parse($_)) {
        my @columns = $csv->fields();
        suffer($linenum,@columns);
    } else {
        my $err = $csv->error_diag . "(" . $csv->error_input . ")";
        print "WARNING: failed to parse line $linenum: " . $csv->error_diag
            . " (" . $csv->error_input . ")\n";
    }
    $linenum++;
}
close CSV;

fatal("COMMIT ABORTED DUE TO DRY RUN BEING ON") if $dry;
$dbh->commit or die $dbh->errstr if $oldAutoCommit;