# --
# Copyright (C) 2001-2017 OTRS AG, http://otrs.com/
# --
# This software comes with ABSOLUTELY NO WARRANTY. For details, see
# the enclosed file COPYING for license information (AGPL). If you
# did not receive this file, see http://www.gnu.org/licenses/agpl.txt.
# --

package Kernel::Modules::CustomerPreferences;

use strict;
use warnings;

sub new {
    my ( $Type, %Param ) = @_;

    # allocate new hash for object
    my $Self = {%Param};
    bless( $Self, $Type );

    # check all needed objects
    for (
        qw(ParamObject DBObject QueueObject LayoutObject ConfigObject LogObject SessionObject UserObject)
        )
    {
        if ( !$Self->{$_} ) {
            $Self->{LayoutObject}->FatalError( Message => "Got no $_!" );
        }
    }

    # get params
    $Self->{Want} = $Self->{ParamObject}->GetParam( Param => 'Want' ) || '';

    return $Self;
}

sub Run {
    my ( $Self, %Param ) = @_;

    # ------------------------------------------------------------ #
    # update preferences
    # ------------------------------------------------------------ #
    if ( $Self->{Subaction} eq 'Update' ) {

        # challenge token check for write action
        $Self->{LayoutObject}->ChallengeTokenCheck( Type => 'Customer' );

        # check group param
        my $Group = $Self->{ParamObject}->GetParam( Param => 'Group' ) || '';
        if ( !$Group ) {
            return $Self->{LayoutObject}->ErrorScreen( Message => 'Param Group is required!' );
        }

        # check preferences setting
        my %Preferences = %{ $Self->{ConfigObject}->Get('CustomerPreferencesGroups') };
        if ( !$Preferences{$Group} ) {
            return $Self->{LayoutObject}->ErrorScreen( Message => "No such config for $Group" );
        }

        # get user data
        my %UserData = $Self->{UserObject}->CustomerUserDataGet( User => $Self->{UserLogin} );
        my $Module = $Preferences{$Group}->{Module};
        if ( !$Self->{MainObject}->Require($Module) ) {
            return $Self->{LayoutObject}->FatalError();
        }
        my $Object = $Module->new(
            %{$Self},
            ConfigItem => $Preferences{$Group},
            Debug      => $Self->{Debug},
        );

        # log loaded module
        if ( $Self->{Debug} > 1 ) {
            $Self->{LogObject}->Log(
                Priority => 'debug',
                Message  => "Module: $Module loaded!",
            );
        }
        my @Params = $Object->Param( UserData => \%UserData );
        my %GetParam;
        for my $ParamItem (@Params) {
            my @Array = $Self->{ParamObject}->GetArray(
                Param => $ParamItem->{Name},
                Raw   => $ParamItem->{Raw} || 0,
            );
            $GetParam{ $ParamItem->{Name} } = \@Array;
        }
        my $Message  = '';
        my $Priority = '';
        if (
            $Object->Run(
                GetParam => \%GetParam,
                UserData => \%UserData
            )
            )
        {
            $Message = $Object->Message();
        }
        else {
            $Priority = 'Error';
            $Message  = $Object->Error();
        }

        # check redirect
        my $RedirectURL = $Self->{ParamObject}->GetParam( Param => 'RedirectURL' );
        if ($RedirectURL) {
            return $Self->{LayoutObject}->Redirect(
                OP => $RedirectURL,
            );
        }

        # redirect
        return $Self->{LayoutObject}->Redirect(
            OP => "Action=CustomerPreferences;Priority=$Priority;Message=$Message",
        );
    }

    # ------------------------------------------------------------ #
    # show preferences
    # ------------------------------------------------------------ #
    else {
        my $Output = $Self->{LayoutObject}->CustomerHeader( Title => 'Preferences' );
        $Output .= $Self->{LayoutObject}->CustomerNavigationBar();

        # get param
        my $Message  = $Self->{ParamObject}->GetParam( Param => 'Message' )  || '';
        my $Priority = $Self->{ParamObject}->GetParam( Param => 'Priority' ) || '';

        # add notification
        if ( $Message && $Priority eq 'Error' ) {
            $Output .= $Self->{LayoutObject}->Notify(
                Priority => $Priority,
                Info     => $Message,
            );
        }
        elsif ($Message) {
            $Output .= $Self->{LayoutObject}->Notify(
                Priority => 'Success',
                Info     => $Message,
            );
        }

        # get user data
        my %UserData = $Self->{UserObject}->CustomerUserDataGet( User => $Self->{UserLogin} );
        $Output .= $Self->CustomerPreferencesForm( UserData => \%UserData );
        $Output .= $Self->{LayoutObject}->CustomerFooter();
        return $Output;
    }
}

sub CustomerPreferencesForm {
    my ( $Self, %Param ) = @_;

    $Self->{LayoutObject}->Block(
        Name => 'Body',
        Data => \%Param,
    );

    my @Groups = @{ $Self->{ConfigObject}->Get('CustomerPreferencesView') };

    COLUMN:
    for my $Column (@Groups) {

        next COLUMN if !$Column;

        my %Data;
        my %Preferences = %{ $Self->{ConfigObject}->Get('CustomerPreferencesGroups') };

        GROUP:
        for my $Group ( sort keys %Preferences ) {

            next GROUP if !$Group;

            my $PreferencesGroup = $Preferences{$Group};

            next GROUP if !$PreferencesGroup;
            next GROUP if ref $PreferencesGroup ne 'HASH';

            $PreferencesGroup->{Column} ||= '';
            $PreferencesGroup->{Prio}   ||= 9999;

            next GROUP if $PreferencesGroup->{Column} ne $Column;

            if ( $Data{ $PreferencesGroup->{Prio} } ) {

                COUNT:
                for ( 1 .. 151 ) {

                    $PreferencesGroup->{Prio}++;

                    if ( !$Data{ $PreferencesGroup->{Prio} } ) {
                        $Data{ $PreferencesGroup->{Prio} } = $Group;
                        last COUNT;
                    }
                }
            }

            $Data{ $PreferencesGroup->{Prio} } = $Group;
        }

        $Self->{LayoutObject}->Block(
            Name => 'Head',
            Data => {
                Header => $Column,
            },
        );

        # sort
        for my $Key ( sort keys %Data ) {
            $Data{ sprintf( "%07d", $Key ) } = $Data{$Key};
            delete $Data{$Key};
        }

        # show each preferences setting
        PRIO:
        for my $Prio ( sort keys %Data ) {
            my $Group = $Data{$Prio};
            next PRIO if !$Self->{ConfigObject}->{CustomerPreferencesGroups}->{$Group};

            my %Preference = %{ $Self->{ConfigObject}->{CustomerPreferencesGroups}->{$Group} };
            next PRIO if !$Preference{Active};

            # load module
            my $Module = $Preference{Module} || 'Kernel::Output::HTML::CustomerPreferencesGeneric';
            if ( !$Self->{MainObject}->Require($Module) ) {
                return $Self->{LayoutObject}->FatalError();
            }
            my $Object = $Module->new(
                %{$Self},
                ConfigItem => $Preferences{$Group},
                Debug      => $Self->{Debug},
            );
            my @Params = $Object->Param( UserData => $Param{UserData} );
            next PRIO if !@Params;

            # show item
            $Self->{LayoutObject}->Block(
                Name => 'Item',
                Data => {
                    Group => $Group,
                    %Preference,
                },
            );
            for my $ParamItem (@Params) {
                if ( ref $ParamItem->{Data} eq 'HASH' || ref $Preference{Data} eq 'HASH' ) {
                    $ParamItem->{Option} = $Self->{LayoutObject}->BuildSelection(
                        %Preference, %{$ParamItem},
                    );
                }
                $Self->{LayoutObject}->Block(
                    Name => 'Block',
                    Data => { %Preference, %{$ParamItem}, },
                );
                $Self->{LayoutObject}->Block(
                    Name => $ParamItem->{Block} || $Preference{Block} || 'Option',
                    Data => { %Preference, %{$ParamItem}, },
                );
            }
        }
    }

    # create & return output
    return $Self->{LayoutObject}->Output(
        TemplateFile => 'CustomerPreferences',
        Data         => \%Param
    );
}

1;
