package Mod::APIvelo;
#
# SPDX-License-Identifier: AGPL-3.0-or-later
# Copyright (c) Rainer Gümpelein, TeilRad GmbH
#
#Server for velofaktur
#
#curl -d  '{"Typ":"Statusmeldung","Station":8,"Slot":1,"Fahrzeug":{"Buchbar":false,"Id":"200008","LadezustandBatterie":"75"}}'  -H "Content-Type: application/json" -X POST https://shareeapp-fr01.copri4.de/APIvelo
#
#ATTENTION
##In DB context $q->escapeHTML must always done by API
#
#use lib qw(/var/www/copri4/shareeapp-fr01/src);
use warnings;
use strict;
use POSIX;
use Exporter;
our @ISA = qw (Exporter);

#use POSIX;
use CGI;
use Apache2::Const -compile => qw(OK );
use JSON;
use Scalar::Util qw(looks_like_number);
use Config::General;

use Lib::Config;
use Mod::DBtank;
use Mod::Basework;
use Mod::APIfunc;
use Mod::APIjsonclient;
use Data::Dumper;

sub handler {
 my ($r) = @_;
 my $q = new CGI;
 my $json = JSON->new->allow_nonref;
 my $cf = new Config;
 my $dbt = new DBtank;
 my $bw = new Basework;


 my %varenv = $cf->envonline();
 my $now_dt = strftime "%Y-%m-%d %H:%M:%S", localtime;
 my $lang="de";
 my $owner=182;#velofactur API 
 my $debug=1;
 my $user_agent = $q->user_agent();
 my $dbh = "";

 $bw->log("APIvelo POST:\n--> user-agent: '$user_agent' to syshost: $varenv{syshost}\n",$q,"");

print $q->header(-type => "application/json", -charset => "utf-8", -'Access-Control-Allow-Origin' => "*");

open(FILE,">>$varenv{logdir}/APIvelo.log") if($debug);
print FILE "\n*** $now_dt user-agent: '$user_agent' to syshost: $varenv{syshost}\n" if($debug);
print FILE "<=== veloDUMP\n " . Dumper($q) . "\n" if($debug);
print FILE "<=== DUMP postdata:\n " . Dumper($q->param('POSTDATA')) . "\n" if($debug);

my $jrout = "seems to be not valid";
eval {
  my $response_in = decode_json( $q->param('POSTDATA'));


  #- int19=bike charge
  #- int27=velofactur bike ID
  #- int28=station_lock_state (station lock velofactur)
  #- int29=velofactur Buchbar (true|false)
  #- int30=velofactur station ID
  #- int31=velofactur slot ID
  #- txt25=velofactur last station message (error or success)

  my $jrout = $json->pretty->encode({ fakturjson => $response_in });
  print FILE "<=== JSON POST from velofactur:\n$jrout\n" if($debug);
  
  my $record_cc = { c_id => 0 };

  if($response_in->{Typ} eq "Statusmeldung" && $response_in->{Fahrzeug}->{Id} =~ /(\d+)/){
    my $velo_id = $1;
    print FILE "condition: : $response_in->{Typ} && $response_in->{Fahrzeug}->{Id}\n" if($debug);
    my $pref_cc = {
        table           => "content",
        fetch           => "one",
        template_id     => "205",
        int27         => $velo_id,
        };

    #loop operators to get velofactur bike Id
    while (my ($mandant_conf, $value) = each %{ $dbt->{operator} }) {
     if($value->{database}->{dbname} && $value->{hwtype} eq "velofactur"){
      my $rows = 0;

      my $sharee_operator = $value->{database}->{dbname}; 
      my $dbh_operator = $dbt->dbconnect_extern($sharee_operator);
      $record_cc = $dbt->fetch_record($dbh_operator,$pref_cc);

      if($record_cc->{c_id}){
      	my $update_cc = {
                table   =>      "content",
                mtime   =>      "now()",
                owner   =>      "$owner",
      	};

	#$update_cc->{int28} = 0;#where is the key=value for station_lock_state? Buchbar?	
      	$update_cc->{int19} = $response_in->{Fahrzeug}->{LadezustandBatterie} if(looks_like_number($response_in->{Fahrzeug}->{LadezustandBatterie}));
      	$update_cc->{int27} = $1 if($response_in->{Fahrzeug}->{Id} && $response_in->{Fahrzeug}->{Id} =~ /(\d+)/);
      	$update_cc->{int30} = $1 if($response_in->{Station} && $response_in->{Station} =~ /(\d+)/);
      	$update_cc->{int31} = $1 if($response_in->{Slot} && $response_in->{Slot} =~ /(\d+)/);
      	$update_cc->{txt25} = $response_in->{Status} if($response_in->{Status});

	#velofactur false|true boeelan
  	#set bike_state to maintanance 
	#only if saved! velofactur Buchbar_state = true and bike_state = available
      	$update_cc->{int10} = 4 if($update_cc->{int29} == 1 && $update_cc->{int10} == 1);
      	$update_cc->{int29} = 0;

	if($response_in->{Fahrzeug}->{Buchbar}){
	  #set bike_state to available 
	  #only if saved! velofactur Buchbar_state = false and bike_state = maintanance
      	  $update_cc->{int10} = 1 if($update_cc->{int29} == 0 && $update_cc->{int10} == 4);
      	  $update_cc->{int29} = 1;
	}

      	$rows = $dbt->update_record($dbh_operator,$update_cc,$record_cc);
      	$bw->log("velofactur updates dbname: $sharee_operator, c_id=$record_cc->{c_id} by fakturjson $response_in->{Typ} | rows:$rows",$update_cc,"");
      	print FILE "---> velofactur updates dbname: $sharee_operator, c_id=$record_cc->{c_id}  by fakturjson $response_in->{Typ} | rows:$rows\n" . Dumper($update_cc) . "\n" if($debug);
      }
     }
    }

    ############
    #stdout printed JSON to velofactur endpoint
    my %jsonout;
    $jsonout{Typ} = "sharee Befehlsmeldung";
    $jsonout{Status} = "DONE";

    foreach my $resp (keys (%{ $response_in })) {
      #print $resp . ":" . $response_in->{$resp} . "\n";
      $jsonout{$resp} = $response_in->{$resp} if($resp eq "Id");
    }
    my $rest_json = $json->pretty->encode(\%jsonout);
    print $rest_json;
    ############
 
  }else{
    print FILE "condition anywhere an for selftests\n" if($debug);
    print $jrout;
  }

 

};
if ($@){
  print FILE "failure! can not decode POST json, POSTDATA:\n" . Dumper($q->param('POSTDATA')) . "\n" if($debug);
  warn $@;
}

close(FILE) if($debug);
return Apache2::Const::OK;
}
1;