#
# Copyright (C) 2008-2014 Sebastien Helleu <flashcode@flashtux.org>
# Copyright (C) 2010-2015 Nils Görs <weechatter@arcor.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Set WeeChat and plugins options interactively.
#
# History:
#
# 2016-02-06, Sebastien Helleu <flashcode@flashtux.org>:
#     version 4.1: remove debug print
# 2015-12-24, Sebastien Helleu <flashcode@flashtux.org>:
#     version 4.0: add support of parent options (inherited values in irc servers)
#                  with WeeChat >= 1.4
# 2015-05-16, Sebastien Helleu <flashcode@flashtux.org>:
#     version 3.9: fix cursor position when editing an option with WeeChat >= 1.2
# 2015-05-02, arza <arza@arza.us>:
#     version 3.8: don't append "null" to /set when setting an undefined setting
# 2015-05-01, nils_2 <weechatter@arcor.de>:
#     version 3.7: fix two perl warnings (reported by t3chguy)
# 2014-09-30, arza <arza@arza.us>:
#     version 3.6: fix current line counter when options aren't found
# 2014-06-03, nils_2 <weechatter@arcor.de>:
#     version 3.5: add new option "use_mute"
# 2014-01-30, stfn <stfnmd@gmail.com>:
#     version 3.4: add new options "color_value_diff" and "color_value_diff_selected"
# 2014-01-16, luz <ne.tetewi@gmail.com>:
#     version 3.3: fix bug with column alignment in iset buffer when option
#                  name contains unicode characters
# 2013-08-03, Sebastien Helleu <flashcode@flashtux.org>:
#     version 3.2: allow "q" as input in iset buffer to close it
# 2013-07-14, Sebastien Helleu <flashcode@flashtux.org>:
#     version 3.1: remove unneeded calls to iset_refresh() in mouse callback
#                  (faster mouse actions when lot of options are displayed),
#                  fix bug when clicking on a line after the last option displayed
# 2013-04-30, arza <arza@arza.us>:
#     version 3.0: simpler title, fix refresh on unset
# 2012-12-16, nils_2 <weechatter@arcor.de>:
#     version 2.9: fix focus window with iset buffer on mouse click
# 2012-08-25, nils_2 <weechatter@arcor.de>:
#     version 2.8: most important key and mouse bindings for iset buffer added to title-bar (idea The-Compiler)
# 2012-07-31, nils_2 <weechatter@arcor.de>:
#     version 2.7: add combined option and value search (see /help iset)
#                : add exact value search (see /help iset)
#                : fix problem with metacharacter in value search
#                : fix use of uninitialized value for unset option and reset value of option
# 2012-07-25, nils_2 <weechatter@arcor.de>:
#     version 2.6: switch to iset buffer (if existing) when command /iset is called with arguments
# 2012-03-17, Sebastien Helleu <flashcode@flashtux.org>:
#     version 2.5: fix check of sections when creating config file
# 2012-03-09, Sebastien Helleu <flashcode@flashtux.org>:
#     version 2.4: fix reload of config file
# 2012-02-02, nils_2 <weechatter@arcor.de>:
#     version 2.3: fixed: refresh problem with new search results and cursor was outside window.
#                : add: new option "current_line" in title bar
#     version 2.2: fixed: refresh error when toggling plugins description
# 2011-11-05, nils_2 <weechatter@arcor.de>:
#     version 2.1: use own config file (iset.conf), fix own help color (used immediately)
# 2011-10-16, nils_2 <weechatter@arcor.de>:
#     version 2.0: add support for left-mouse-button and more sensitive mouse gesture (for integer/color options)
#                  add help text for mouse support
# 2011-09-20, Sebastien Helleu <flashcode@flashtux.org>:
#     version 1.9: add mouse support, fix iset buffer, fix errors on first load under FreeBSD
# 2011-07-21, nils_2 <weechatter@arcor.de>:
#     version 1.8: added: option "show_plugin_description" (alt+p)
#                  fixed: typos in /help iset (lower case for alt+'x' keys)
# 2011-05-29, nils_2 <weechatter@arcor.de>:
#     version 1.7: added: version check for future needs
#                  added: new option (scroll_horiz) and usage of scroll_horiz function (weechat >= 0.3.6 required)
#                  fixed: help_bar did not pop up immediately using key-shortcut
# 2011-02-19, nils_2 <weechatter@arcor.de>:
#     version 1.6: added: display of all possible values in help bar (show_help_extra_info)
#                  fixed: external user options never loaded when starting iset first time
# 2011-02-13, Sebastien Helleu <flashcode@flashtux.org>:
#     version 1.5: use new help format for command arguments
# 2011-02-03, nils_2 <weechatter@arcor.de>:
#     version 1.4: fixed: restore value filter after /upgrade using buffer local variable.
# 2011-01-14, nils_2 <weechatter@arcor.de>:
#     version 1.3: added function to search for values (option value_search_char).
#                  code optimization.
# 2010-12-26, Sebastien Helleu <flashcode@flashtux.org>:
#     version 1.2: improve speed of /upgrade when iset buffer is open,
#                  restore filter used after /upgrade using buffer local variable,
#                  use /iset filter argument if buffer is open.
# 2010-11-21, drubin <drubin+weechat@smartcube.co.za>:
#     version 1.1.1: fix bugs with cursor position
# 2010-11-20, nils_2 <weechatter@arcor.de>:
#     version 1.1: cursor position set to value
# 2010-08-03, Sebastien Helleu <flashcode@flashtux.org>:
#     version 1.0: move misplaced call to infolist_free()
# 2010-02-02, rettub <rettub@gmx.net>:
#     version 0.9: turn all the help stuff off if option 'show_help_bar' is 'off',
#                  new key binding <alt>-<v> to toggle help_bar and help stuff on/off
# 2010-01-30, nils_2 <weechatter@arcor.de>:
#     version 0.8: fix error when option does not exist
# 2010-01-24, Sebastien Helleu <flashcode@flashtux.org>:
#     version 0.7: display iset bar only on iset buffer
# 2010-01-22, nils_2 <weechatter@arcor.de> and drubin:
#     version 0.6: add description in a bar, fix singular/plural bug in title bar,
#                  fix selected line when switching buffer
# 2009-06-21, Sebastien Helleu <flashcode@flashtux.org>:
#     version 0.5: fix bug with iset buffer after /upgrade
# 2009-05-02, Sebastien Helleu <flashcode@flashtux.org>:
#     version 0.4: sync with last API changes
# 2009-01-04, Sebastien Helleu <flashcode@flashtux.org>:
#     version 0.3: open iset buffer when /iset command is executed
# 2009-01-04, Sebastien Helleu <flashcode@flashtux.org>:
#     version 0.2: use null values for options, add colors, fix refresh bugs,
#                  use new keys to reset/unset options, sort options by name,
#                  display number of options in buffer's title
# 2008-11-05, Sebastien Helleu <flashcode@flashtux.org>:
#     version 0.1: first official version
# 2008-04-19, Sebastien Helleu <flashcode@flashtux.org>:
#     script creation

use strict;

my $PRGNAME = "iset";
my $VERSION = "4.1";
my $DESCR   = "Interactive Set for configuration options";
my $AUTHOR  = "Sebastien Helleu <flashcode\@flashtux.org>";
my $LICENSE = "GPL3";
my $LANG    = "perl";
my $ISET_CONFIG_FILE_NAME = "iset";

my $iset_config_file;
my $iset_buffer = "";
my $wee_version_number = 0;
my @iset_focus = ();
my @options_names = ();
my @options_parent_names = ();
my @options_types = ();
my @options_values = ();
my @options_default_values = ();
my @options_parent_values = ();
my @options_is_null = ();
my $option_max_length = 0;
my $current_line = 0;
my $filter = "*";
my $description = "";
my $options_name_copy = "";
my $iset_filter_title = "";
# search modes: 0 = index() on value, 1 = grep() on value, 2 = grep() on option, 3 = grep on option & value
my $search_mode = 2;
my $search_value = "";
my $help_text_keys = "alt + space: toggle, +/-: increase/decrease, enter: change, ir: reset, iu: unset, v: toggle help bar";
my $help_text_mouse = "Mouse: left: select, right: toggle/set, right + drag left/right: increase/decrease";
my %options_iset;

my %mouse_keys = ("\@chat(perl.$PRGNAME):button1" => "hsignal:iset_mouse",
                  "\@chat(perl.$PRGNAME):button2*" => "hsignal:iset_mouse",
                  "\@chat(perl.$PRGNAME):wheelup" => "/repeat 5 /iset **up",
                  "\@chat(perl.$PRGNAME):wheeldown" => "/repeat 5 /iset **down");


sub iset_title
{
    if ($iset_buffer ne "")
    {
        my $current_line_counter = "";
        if (weechat::config_boolean($options_iset{"show_current_line"}) == 1)
        {
            if (@options_names eq 0)
            {
                $current_line_counter = "0/";
            }
            else
            {
                $current_line_counter = ($current_line + 1) . "/";
            }
        }
        my $show_filter = "";
        if ($search_mode eq 0)
        {
            $iset_filter_title = "(value) ";
            $show_filter = $search_value;
            if ( substr($show_filter,0,1) eq weechat::config_string($options_iset{"value_search_char"}) )
            {
                $show_filter = substr($show_filter,1,length($show_filter));
            }
        }
        elsif ($search_mode eq 1)
        {
            $iset_filter_title = "(value) ";
            $show_filter = "*".$search_value."*";
        }
        elsif ($search_mode eq 2)
        {
            $iset_filter_title = "";
            $filter = "*" if ($filter eq "");
            $show_filter = $filter;
        }
        elsif ($search_mode eq 3)
        {
            $iset_filter_title = "(option) ";
            $show_filter = $filter
                            .weechat::color("default")
                            ." / (value) "
                            .weechat::color("yellow")
                            ."*".$search_value."*";
        }
        weechat::buffer_set($iset_buffer, "title",
                             $iset_filter_title
                            .weechat::color("yellow")
                            .$show_filter
                            .weechat::color("default")." | "
                            .$current_line_counter
                            .@options_names
                            ." | "
                            .$help_text_keys
                            ." | "
                            .$help_text_mouse);
    }
}

sub iset_create_filter
{
    $filter = $_[0];
    if ( $search_mode == 3 )
    {
        my @cmd_array = split(/ /,$filter);
        my $array_count = @cmd_array;
        $filter = $cmd_array[0];
        $filter = $cmd_array[0] . " " . $cmd_array[1] if ( $array_count >2 );
    }
    $filter = "$1.*" if ($filter =~ /f (.*)/); # search file
    $filter = "*.$1.*" if ($filter =~ /s (.*)/); # search section
    if ((substr($filter, 0, 1) ne "*") && (substr($filter, -1, 1) ne "*"))
    {
        $filter = "*".$filter."*";
    }
    if ($iset_buffer ne "")
    {
        weechat::buffer_set($iset_buffer, "localvar_set_iset_filter", $filter);
    }
}

sub iset_buffer_input
{
    my ($data, $buffer, $string) = ($_[0], $_[1], $_[2]);

    # string begins with space?
    return weechat::WEECHAT_RC_OK if (substr($string, 0, 1 ) eq " ");

    if ($string eq "q")
    {
        weechat::buffer_close($buffer);
        return weechat::WEECHAT_RC_OK;
    }
    $search_value = "";
    my @cmd_array = split(/ /,$string);
    my $array_count = @cmd_array;
    my $string2 = substr($string, 0, 1);
    if ($string2 eq weechat::config_string($options_iset{"value_search_char"})
    or (defined $cmd_array[0] and $cmd_array[0] eq weechat::config_string($options_iset{"value_search_char"}).weechat::config_string($options_iset{"value_search_char"})) )
    {
        $search_mode = 1;
        $search_value = substr($string, 1);
        iset_get_values($search_value);
        if ($iset_buffer ne "")
        {
            weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $search_value);
        }
    }
    else
    {
        $search_mode = 2;
        if ( $array_count >= 2 and $cmd_array[0] ne "f" or $cmd_array[0] ne "s")
        {
            if ( defined $cmd_array[1] and substr($cmd_array[1], 0, 1) eq weechat::config_string($options_iset{"value_search_char"})
            or defined $cmd_array[2] and substr($cmd_array[2], 0, 1) eq weechat::config_string($options_iset{"value_search_char"}) )
            {
                $search_mode = 3;
                $search_value = substr($cmd_array[1], 1);  # cut value_search_char
                $search_value = substr($cmd_array[2], 1) if ( $array_count > 2);  # cut value_search_char
            }
        }
        if ( $search_mode == 3)
        {
            iset_create_filter($string);
            iset_get_options($search_value);
        }else
        {
            iset_create_filter($string);
            iset_get_options("");
        }
    }
    weechat::buffer_set($iset_buffer, "localvar_set_iset_search_mode", $search_mode);
    weechat::buffer_clear($buffer);
    $current_line = 0;
    iset_refresh();
    return weechat::WEECHAT_RC_OK;
}

sub iset_buffer_close
{
    $iset_buffer = "";

    return weechat::WEECHAT_RC_OK;
}

sub iset_init
{
    $current_line = 0;
    $iset_buffer = weechat::buffer_search($LANG, $PRGNAME);
    if ($iset_buffer eq "")
    {
        $iset_buffer = weechat::buffer_new($PRGNAME, "iset_buffer_input", "", "iset_buffer_close", "");
    }
    else
    {
        my $new_filter = weechat::buffer_get_string($iset_buffer, "localvar_iset_filter");
        $search_mode = weechat::buffer_get_string($iset_buffer, "localvar_iset_search_mode");
        $search_value = weechat::buffer_get_string($iset_buffer, "localvar_iset_search_value");
        $filter = $new_filter if ($new_filter ne "");
    }
    if ($iset_buffer ne "")
    {
        weechat::buffer_set($iset_buffer, "type", "free");
        iset_title();
        weechat::buffer_set($iset_buffer, "key_bind_ctrl-L",        "/iset **refresh");
        weechat::buffer_set($iset_buffer, "key_bind_meta2-A",       "/iset **up");
        weechat::buffer_set($iset_buffer, "key_bind_meta2-B",       "/iset **down");
        weechat::buffer_set($iset_buffer, "key_bind_meta2-23~",     "/iset **left");
        weechat::buffer_set($iset_buffer, "key_bind_meta2-24~" ,    "/iset **right");
        weechat::buffer_set($iset_buffer, "key_bind_meta- ",        "/iset **toggle");
        weechat::buffer_set($iset_buffer, "key_bind_meta-+",        "/iset **incr");
        weechat::buffer_set($iset_buffer, "key_bind_meta--",        "/iset **decr");
        weechat::buffer_set($iset_buffer, "key_bind_meta-imeta-r",  "/iset **reset");
        weechat::buffer_set($iset_buffer, "key_bind_meta-imeta-u",  "/iset **unset");
        weechat::buffer_set($iset_buffer, "key_bind_meta-ctrl-J",   "/iset **set");
        weechat::buffer_set($iset_buffer, "key_bind_meta-ctrl-M",   "/iset **set");
        weechat::buffer_set($iset_buffer, "key_bind_meta-meta2-1~", "/iset **scroll_top");
        weechat::buffer_set($iset_buffer, "key_bind_meta-meta2-4~", "/iset **scroll_bottom");
        weechat::buffer_set($iset_buffer, "key_bind_meta-v",        "/iset **toggle_help");
        weechat::buffer_set($iset_buffer, "key_bind_meta-p",        "/iset **toggle_show_plugin_desc");
        weechat::buffer_set($iset_buffer, "localvar_set_iset_filter", $filter);
        weechat::buffer_set($iset_buffer, "localvar_set_iset_search_mode", $search_mode);
        weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $search_value);
    }
}

sub iset_get_options
{
    my $var_value = $_[0];
    $var_value = "" if (not defined $var_value);
    $var_value = lc($var_value);
    $search_value = $var_value;
    @iset_focus = ();
    @options_names = ();
    @options_parent_names = ();
    @options_types = ();
    @options_values = ();
    @options_default_values = ();
    @options_parent_values = ();
    @options_is_null = ();
    $option_max_length = 0;
    my %options_internal = ();
    my $i = 0;
    my $key;
    my $iset_struct;
    my %iset_struct;

    weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $var_value) if ($search_mode == 3);

    my $infolist = weechat::infolist_get("option", "", $filter);
    while (weechat::infolist_next($infolist))
    {
        $key = sprintf("%08d", $i);
        my $name = weechat::infolist_string($infolist, "full_name");
        my $parent_name = weechat::infolist_string($infolist, "parent_name");
        next if (weechat::config_boolean($options_iset{"show_plugin_description"}) == 0 and index ($name, "plugins.desc.") != -1);
        my $type = weechat::infolist_string($infolist, "type");
        my $value = weechat::infolist_string($infolist, "value");
        my $default_value = weechat::infolist_string($infolist, "default_value");
        my $parent_value;
        if ($parent_name && (($wee_version_number < 0x00040300) || (weechat::infolist_search_var($infolist, "parent_value"))))
        {
            $parent_value = weechat::infolist_string($infolist, "parent_value");
        }
        my $is_null = weechat::infolist_integer($infolist, "value_is_null");
        if ($search_mode == 3)
        {
            my $value = weechat::infolist_string($infolist, "value");
            if ( grep /\Q$var_value/,lc($value) )
            {
                $options_internal{$name}{"parent_name"} = $parent_name;
                $options_internal{$name}{"type"} = $type;
                $options_internal{$name}{"value"} = $value;
                $options_internal{$name}{"default_value"} = $default_value;
                $options_internal{$name}{"parent_value"} = $parent_value;
                $options_internal{$name}{"is_null"} = $is_null;
                $option_max_length = length($name) if (length($name) > $option_max_length);
                $iset_struct{$key} = $options_internal{$name};
                push(@iset_focus, $iset_struct{$key});
            }
        }
        else
        {
            $options_internal{$name}{"parent_name"} = $parent_name;
            $options_internal{$name}{"type"} = $type;
            $options_internal{$name}{"value"} = $value;
            $options_internal{$name}{"default_value"} = $default_value;
            $options_internal{$name}{"parent_value"} = $parent_value;
            $options_internal{$name}{"is_null"} = $is_null;
            $option_max_length = length($name) if (length($name) > $option_max_length);
            $iset_struct{$key} = $options_internal{$name};
            push(@iset_focus, $iset_struct{$key});
        }
        $i++;
    }
    weechat::infolist_free($infolist);

    foreach my $name (sort keys %options_internal)
    {
        push(@options_names, $name);
        push(@options_parent_names, $options_internal{$name}{"parent_name"});
        push(@options_types, $options_internal{$name}{"type"});
        push(@options_values, $options_internal{$name}{"value"});
        push(@options_default_values, $options_internal{$name}{"default_value"});
        push(@options_parent_values, $options_internal{$name}{"parent_value"});
        push(@options_is_null, $options_internal{$name}{"is_null"});
    }
}

sub iset_get_values
{
    my $var_value = $_[0];
    $var_value = lc($var_value);
    if (substr($var_value,0,1) eq weechat::config_string($options_iset{"value_search_char"}) and $var_value ne weechat::config_string($options_iset{"value_search_char"}))
    {
        $var_value = substr($var_value,1,length($var_value));
        $search_mode = 0;
    }
    iset_search_values($var_value,$search_mode);
    weechat::buffer_set($iset_buffer, "localvar_set_iset_search_mode", $search_mode);
    weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $var_value);
    $search_value = $var_value;
}
sub iset_search_values
{
    my ($var_value,$search_mode) = ($_[0],$_[1]);
    @options_names = ();
    @options_parent_names = ();
    @options_types = ();
    @options_values = ();
    @options_default_values = ();
    @options_parent_values = ();
    @options_is_null = ();
    $option_max_length = 0;
    my %options_internal = ();
    my $i = 0;
    my $infolist = weechat::infolist_get("option", "", "*");
    while (weechat::infolist_next($infolist))
    {
        my $name = weechat::infolist_string($infolist, "full_name");
        my $parent_name = weechat::infolist_string($infolist, "parent_name");
        next if (weechat::config_boolean($options_iset{"show_plugin_description"}) == 0 and index ($name, "plugins.desc.") != -1);
        my $type = weechat::infolist_string($infolist, "type");
        my $is_null = weechat::infolist_integer($infolist, "value_is_null");
        my $value = weechat::infolist_string($infolist, "value");
        my $default_value = weechat::infolist_string($infolist, "default_value");
        my $parent_value;
        if ($parent_name && (($wee_version_number < 0x00040300) || (weechat::infolist_search_var($infolist, "parent_value"))))
        {
            $parent_value = weechat::infolist_string($infolist, "parent_value");
        }
        if ($search_mode)
        {
            if ( grep /\Q$var_value/,lc($value) )
            {
                $options_internal{$name}{"parent_name"} = $parent_name;
                $options_internal{$name}{"type"} = $type;
                $options_internal{$name}{"value"} = $value;
                $options_internal{$name}{"default_value"} = $default_value;
                $options_internal{$name}{"parent_value"} = $parent_value;
                $options_internal{$name}{"is_null"} = $is_null;
                $option_max_length = length($name) if (length($name) > $option_max_length);
            }
        }
        else
        {
#            if ($value =~ /\Q$var_value/si)
            if (lc($value) eq $var_value)
            {
                $options_internal{$name}{"parent_name"} = $parent_name;
                $options_internal{$name}{"type"} = $type;
                $options_internal{$name}{"value"} = $value;
                $options_internal{$name}{"default_value"} = $default_value;
                $options_internal{$name}{"parent_value"} = $parent_value;
                $options_internal{$name}{"is_null"} = $is_null;
                $option_max_length = length($name) if (length($name) > $option_max_length);
            }
        }
        $i++;
    }
    weechat::infolist_free($infolist);
    foreach my $name (sort keys %options_internal)
    {
        push(@options_names, $name);
        push(@options_parent_names, $options_internal{$name}{"parent_name"});
        push(@options_types, $options_internal{$name}{"type"});
        push(@options_values, $options_internal{$name}{"value"});
        push(@options_default_values, $options_internal{$name}{"default_value"});
        push(@options_parent_values, $options_internal{$name}{"parent_value"});
        push(@options_is_null, $options_internal{$name}{"is_null"});
    }
}

sub iset_refresh_line
{
    if ($iset_buffer ne "")
    {
        my $y = $_[0];
        if ($y <= $#options_names)
        {
            return if (! defined($options_types[$y]));
            my $format = sprintf("%%s%%s%%s %%s %%-7s %%s %%s%%s%%s");
            my $padding;
            if ($wee_version_number >= 0x00040200)
            {
                $padding = " " x ($option_max_length - weechat::strlen_screen($options_names[$y]));
            }
            else
            {
                $padding = " " x ($option_max_length - length($options_names[$y]));
            }
            my $around = "";
            $around = "\"" if ((!$options_is_null[$y]) && ($options_types[$y] eq "string"));

            my $color1 = weechat::color(weechat::config_color($options_iset{"color_option"}));
            my $color2 = weechat::color(weechat::config_color($options_iset{"color_type"}));
            my $color3 = "";
            my $color4 = "";
            if ($options_is_null[$y])
            {
                $color3 = weechat::color(weechat::config_color($options_iset{"color_value_undef"}));
                $color4 = weechat::color(weechat::config_color($options_iset{"color_value"}));
            }
            elsif ($options_values[$y] ne $options_default_values[$y])
            {
                $color3 = weechat::color(weechat::config_color($options_iset{"color_value_diff"}));
            }
            else
            {
                $color3 = weechat::color(weechat::config_color($options_iset{"color_value"}));
            }
            if ($y == $current_line)
            {
                $color1 = weechat::color(weechat::config_color($options_iset{"color_option_selected"}).",".weechat::config_color($options_iset{"color_bg_selected"}));
                $color2 = weechat::color(weechat::config_color($options_iset{"color_type_selected"}).",".weechat::config_color($options_iset{"color_bg_selected"}));
                if ($options_is_null[$y])
                {
                    $color3 = weechat::color(weechat::config_color($options_iset{"color_value_undef_selected"}).",".weechat::config_color($options_iset{"color_bg_selected"}));
                    $color4 = weechat::color(weechat::config_color($options_iset{"color_value_selected"}).",".weechat::config_color($options_iset{"color_bg_selected"}));
                }
                elsif ($options_values[$y] ne $options_default_values[$y])
                {
                    $color3 = weechat::color(weechat::config_color($options_iset{"color_value_diff_selected"}).",".weechat::config_color($options_iset{"color_bg_selected"}));
                }
                else
                {
                    $color3 = weechat::color(weechat::config_color($options_iset{"color_value_selected"}).",".weechat::config_color($options_iset{"color_bg_selected"}));
                }
            }
            my $value = $options_values[$y];
            if ($options_is_null[$y])
            {
                $value = "null";
                if ($options_parent_names[$y])
                {
                    if (defined $options_parent_values[$y])
                    {
                        my $around_parent = "";
                        $around_parent = "\"" if ($options_types[$y] eq "string");
                        $value .= $color1." -> ".$color4.$around_parent.$options_parent_values[$y].$around_parent;
                    }
                    else
                    {
                        $value .= $color1." -> ".$color3."null";
                    }
                }
            }
            my $strline = sprintf($format,
                                  $color1, $options_names[$y], $padding,
                                  $color2, $options_types[$y],
                                  $color3, $around, $value, $around);
            weechat::print_y($iset_buffer, $y, $strline);
        }
    }
}

sub iset_refresh
{
    iset_title();
    if (($iset_buffer ne "") && ($#options_names >= 0))
    {
        foreach my $y (0 .. $#options_names)
        {
            iset_refresh_line($y);
        }
    }

    weechat::bar_item_update("isetbar_help") if (weechat::config_boolean($options_iset{"show_help_bar"}) == 1);
}

sub iset_full_refresh
{
    $iset_buffer = weechat::buffer_search($LANG, $PRGNAME);
    if ($iset_buffer ne "")
    {
        weechat::buffer_clear($iset_buffer) unless defined $_[0]; # iset_full_refresh(1) does a full refresh without clearing buffer
        # search for "*" in $filter.
        if ($filter =~ m/\*/ and $search_mode == 2)
        {
            iset_get_options("");
        }
        else
        {
            if ($search_mode == 0)
            {
                $search_value = "=" . $search_value;
                iset_get_values($search_value);
            }
            elsif ($search_mode == 1)
            {
                iset_get_values($search_value);
            }
            elsif ($search_mode == 3)
            {
                iset_create_filter($filter);
                iset_get_options($search_value);
            }
        }
        if (weechat::config_boolean($options_iset{"show_plugin_description"}) == 1)
        {
            iset_set_current_line($current_line);
        }else
        {
            $current_line = $#options_names if ($current_line > $#options_names);
        }
        iset_refresh();
        weechat::command($iset_buffer, "/window refresh");
    }
}

sub iset_set_current_line
{
    my $new_current_line = $_[0];
    if ($new_current_line >= 0)
    {
        my $old_current_line = $current_line;
        $current_line = $new_current_line;
        $current_line = $#options_names if ($current_line > $#options_names);
        if ($old_current_line != $current_line)
        {
            iset_refresh_line($old_current_line);
            iset_refresh_line($current_line);
            weechat::bar_item_update("isetbar_help") if (weechat::config_boolean($options_iset{"show_help_bar"}) == 1);
        }
    }
}

sub iset_signal_window_scrolled_cb
{
    my ($data, $signal, $signal_data) = ($_[0], $_[1], $_[2]);
    if ($iset_buffer ne "")
    {
        my $infolist = weechat::infolist_get("window", $signal_data, "");
        if (weechat::infolist_next($infolist))
        {
            if (weechat::infolist_pointer($infolist, "buffer") eq $iset_buffer)
            {
                my $old_current_line = $current_line;
                my $new_current_line = $current_line;
                my $start_line_y = weechat::infolist_integer($infolist, "start_line_y");
                my $chat_height = weechat::infolist_integer($infolist, "chat_height");
                $new_current_line += $chat_height if ($new_current_line < $start_line_y);
                $new_current_line -= $chat_height if ($new_current_line >= $start_line_y + $chat_height);
                $new_current_line = $start_line_y if ($new_current_line < $start_line_y);
                $new_current_line = $start_line_y + $chat_height - 1 if ($new_current_line >= $start_line_y + $chat_height);
                iset_set_current_line($new_current_line);
            }
        }
        weechat::infolist_free($infolist);
    }

    return weechat::WEECHAT_RC_OK;
}

sub iset_get_window_number
{
    if ($iset_buffer ne "")
    {
        my $window = weechat::window_search_with_buffer($iset_buffer);
        return "-window ".weechat::window_get_integer ($window, "number")." " if ($window ne "");
    }
    return "";
}

sub iset_check_line_outside_window
{
    if ($iset_buffer ne "")
    {
        undef my $infolist;
        if ($wee_version_number >= 0x00030500)
        {
            my $window = weechat::window_search_with_buffer($iset_buffer);
            $infolist = weechat::infolist_get("window", $window, "") if $window;
        }
        else
        {
            $infolist = weechat::infolist_get("window", "", "current");
        }
        if ($infolist)
        {
            if (weechat::infolist_next($infolist))
            {
                my $start_line_y = weechat::infolist_integer($infolist, "start_line_y");
                my $chat_height = weechat::infolist_integer($infolist, "chat_height");
                my $window_number = "";
                if ($wee_version_number >= 0x00030500)
                {
                    $window_number = "-window ".weechat::infolist_integer($infolist, "number")." ";
                }
                if ($start_line_y > $current_line)
                {
                    weechat::command($iset_buffer, "/window scroll ".$window_number."-".($start_line_y - $current_line));
                }
                else
                {
                    if ($start_line_y <= $current_line - $chat_height)
                    {
                        weechat::command($iset_buffer, "/window scroll ".$window_number."+".($current_line - $start_line_y - $chat_height + 1));

                    }
                }
            }
            weechat::infolist_free($infolist);
        }
    }
}

sub iset_get_option_name_index
{
    my $option_name = $_[0];
    my $index = 0;
    while ($index <= $#options_names)
    {
        return -1 if ($options_names[$index] gt $option_name);
        return $index if ($options_names[$index] eq $option_name);
        $index++;
    }
    return -1;
}

sub iset_refresh_option
{
    my $option_name = $_[0];
    my $index = $_[1];
    my $infolist = weechat::infolist_get("option", "", $option_name);
    if ($infolist)
    {
        weechat::infolist_next($infolist);
        if (weechat::infolist_fields($infolist))
        {
            $options_parent_names[$index] = weechat::infolist_string($infolist, "parent_name");
            $options_types[$index] = weechat::infolist_string($infolist, "type");
            $options_values[$index] = weechat::infolist_string($infolist, "value");
            $options_default_values[$index] = weechat::infolist_string($infolist, "default_value");
            $options_is_null[$index] = weechat::infolist_integer($infolist, "value_is_null");
            $options_parent_values[$index] = undef;
            if ($options_parent_names[$index]
                && (($wee_version_number < 0x00040300) || (weechat::infolist_search_var($infolist, "parent_value"))))
            {
                $options_parent_values[$index] = weechat::infolist_string($infolist, "parent_value");
            }
            iset_refresh_line($index);
            iset_title() if ($option_name eq "iset.look.show_current_line");
        }
        else
        {
            iset_full_refresh(1);  # if not found, refresh fully without clearing buffer
            weechat::print_y($iset_buffer, $#options_names + 1, "");
        }
        weechat::infolist_free($infolist);
    }
}

sub iset_config_cb
{
    my ($data, $option_name, $value) = ($_[0], $_[1], $_[2]);

    if ($iset_buffer ne "")
    {
        return weechat::WEECHAT_RC_OK if (weechat::info_get("weechat_upgrading", "") eq "1");

        my $index = iset_get_option_name_index($option_name);
        if ($index >= 0)
        {
            # refresh info about changed option
            iset_refresh_option($option_name, $index);
            # refresh any other option having this changed option as parent
            foreach my $i (0 .. $#options_names)
            {
                if ($options_parent_names[$i] eq $option_name)
                {
                    iset_refresh_option($options_names[$i], $i);
                }
            }
        }
        else
        {
            iset_full_refresh() if ($option_name ne "weechat.bar.isetbar.hidden");
        }
    }

    return weechat::WEECHAT_RC_OK;
}

sub iset_set_option
{
    my ($option, $value) = ($_[0],$_[1]);
    if (defined $option and defined $value)
    {
        $option = weechat::config_get($option);
        weechat::config_option_set($option, $value, 1) if ($option ne "");
    }
}

sub iset_reset_option
{
    my $option = $_[0];
    if (defined $option)
    {
        $option = weechat::config_get($option);
        weechat::config_option_reset($option, 1) if ($option ne "");
    }
}

sub iset_unset_option
{
    my $option = $_[0];
    if (defined $option)
    {
        $option = weechat::config_get($option);
        weechat::config_option_unset($option) if ($option ne "");
    }
}


sub iset_cmd_cb
{
    my ($data, $buffer, $args) = ($_[0], $_[1], $_[2]);
    my $filter_set = 0;
#    $search_value = "";
    if (($args ne "") && (substr($args, 0, 2) ne "**"))
    {
        my @cmd_array = split(/ /,$args);
        my $array_count = @cmd_array;
        if (substr($args, 0, 1) eq weechat::config_string($options_iset{"value_search_char"})
        or (defined $cmd_array[0] and $cmd_array[0] eq weechat::config_string($options_iset{"value_search_char"}).weechat::config_string($options_iset{"value_search_char"})) )
        {
            $search_mode = 1;
            my $search_value = substr($args, 1);  # cut value_search_char
            if ($iset_buffer ne "")
            {
                weechat::buffer_clear($iset_buffer);
                weechat::command($iset_buffer, "/window refresh");
            }
            weechat::buffer_set($iset_buffer, "localvar_set_iset_search_mode", $search_mode);
            weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $search_value);
            iset_init();
            iset_get_values($search_value);
            iset_refresh();
            weechat::buffer_set($iset_buffer, "display", "1");
#            $filter = $var_value;
            return weechat::WEECHAT_RC_OK;
        }
        else
        {
            # f/s option =value
            # option =value
            $search_mode = 2;
            if ( $array_count >= 2 and $cmd_array[0] ne "f" or $cmd_array[0] ne "s")
            {
                if ( defined $cmd_array[1] and substr($cmd_array[1], 0, 1) eq weechat::config_string($options_iset{"value_search_char"})
                or defined $cmd_array[2] and substr($cmd_array[2], 0, 1) eq weechat::config_string($options_iset{"value_search_char"}) )
                {
                    $search_mode = 3;
                    $search_value = substr($cmd_array[1], 1);  # cut value_search_char
                    $search_value = substr($cmd_array[2], 1) if ( $array_count > 2);  # cut value_search_char
                }
            }
            iset_create_filter($args);
            $filter_set = 1;
            my $ptrbuf = weechat::buffer_search($LANG, $PRGNAME);
            if ($ptrbuf eq "")
            {
                iset_init();
                iset_get_options($search_value);
                iset_full_refresh();
                weechat::buffer_set(weechat::buffer_search($LANG, $PRGNAME), "display", "1");
                weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $search_value);
                weechat::buffer_set($iset_buffer, "localvar_set_iset_search_mode", $search_mode);
                return weechat::WEECHAT_RC_OK;
            }
            else
            {
                iset_get_options($search_value);
                iset_full_refresh();
                weechat::buffer_set($ptrbuf, "display", "1");
            }
        }
    weechat::buffer_set($iset_buffer, "localvar_set_iset_search_mode", $search_mode);
    weechat::buffer_set($iset_buffer, "localvar_set_iset_search_value", $search_value);
    }
    if ($iset_buffer eq "")
    {
        iset_init();
        iset_get_options("");
        iset_refresh();
    }
    else
    {
#        iset_get_options($search_value);
        iset_full_refresh() if ($filter_set);
    }

    if ($args eq "")
    {
        weechat::buffer_set($iset_buffer, "display", "1");
    }
    else
    {
        if ($args eq "**refresh")
        {
            iset_full_refresh();
        }
        if ($args eq "**up")
        {
            if ($current_line > 0)
            {
                $current_line--;
                iset_refresh_line($current_line + 1);
                iset_refresh_line($current_line);
                iset_check_line_outside_window();
            }
        }
        if ($args eq "**down")
        {
            if ($current_line < $#options_names)
            {
                $current_line++;
                iset_refresh_line($current_line - 1);
                iset_refresh_line($current_line);
                iset_check_line_outside_window();
            }
        }
        if ($args eq "**left" && $wee_version_number >= 0x00030600)
        {
            weechat::command($iset_buffer, "/window scroll_horiz ".iset_get_window_number()."-".weechat::config_integer($options_iset{"scroll_horiz"})."%");
        }
        if ($args eq "**right" && $wee_version_number >= 0x00030600)
        {
            weechat::command($iset_buffer, "/window scroll_horiz ".iset_get_window_number().weechat::config_integer($options_iset{"scroll_horiz"})."%");
        }
        if ($args eq "**scroll_top")
        {
            my $old_current_line = $current_line;
            $current_line = 0;
            iset_refresh_line ($old_current_line);
            iset_refresh_line ($current_line);
            iset_title();
            weechat::command($iset_buffer, "/window scroll_top ".iset_get_window_number());
        }
        if ($args eq "**scroll_bottom")
        {
            my $old_current_line = $current_line;
            $current_line = $#options_names;
            iset_refresh_line ($old_current_line);
            iset_refresh_line ($current_line);
            iset_title();
            weechat::command($iset_buffer, "/window scroll_bottom ".iset_get_window_number());
        }
        if ($args eq "**toggle")
        {
            if ($options_types[$current_line] eq "boolean")
            {
                iset_set_option($options_names[$current_line], "toggle");
            }
        }
        if ($args eq "**incr")
        {
            if (($options_types[$current_line] eq "integer")
                || ($options_types[$current_line] eq "color"))
            {
                iset_set_option($options_names[$current_line], "++1");
            }
        }
        if ($args eq "**decr")
        {
            if (($options_types[$current_line] eq "integer")
                || ($options_types[$current_line] eq "color"))
            {
                iset_set_option($options_names[$current_line], "--1");
            }
        }
        if ($args eq "**reset")
        {
            iset_reset_option($options_names[$current_line]);
        }
        if ($args eq "**unset")
        {
            iset_unset_option($options_names[$current_line]);
        }
        if ($args eq "**toggle_help")
        {
            if (weechat::config_boolean($options_iset{"show_help_bar"})  == 1)
            {
                weechat::config_option_set($options_iset{"show_help_bar"},0,1);
                iset_show_bar(0);
            }
            else
            {
                weechat::config_option_set($options_iset{"show_help_bar"},1,1);
                iset_show_bar(1);
            }
        }
        if ($args eq "**toggle_show_plugin_desc")
        {
            if (weechat::config_boolean($options_iset{"show_plugin_description"}) == 1)
            {
                weechat::config_option_set($options_iset{"show_plugin_description"},0,1);
                iset_full_refresh();
                iset_check_line_outside_window();
                iset_title();
            }
            else
            {
                weechat::config_option_set($options_iset{"show_plugin_description"},1,1);
                iset_full_refresh();
                iset_check_line_outside_window();
                iset_title();
            }
        }
        if ($args eq "**set")
        {
            my $quote = "";
            my $value = $options_values[$current_line];
            if ($options_is_null[$current_line])
            {
                $value = "";
            }
            else
            {
                $quote = "\"" if ($options_types[$current_line] eq "string");
            }
            $value = " ".$quote.$value.$quote if ($value ne "" or $quote ne "");

            my $set_command = "/set";
            my $start_index = 5;
            if (weechat::config_boolean($options_iset{"use_mute"}) == 1)
            {
                $set_command = "/mute ".$set_command;
                $start_index += 11;
            }
            $set_command = $set_command." ".$options_names[$current_line].$value;
            my $pos_space = index($set_command, " ", $start_index);
            if ($pos_space < 0)
            {
                $pos_space = 9999;
            }
            else
            {
                $pos_space = $pos_space + 1;
                $pos_space = $pos_space + 1 if ($quote ne "");
            }
            weechat::buffer_set($iset_buffer, "input", $set_command);
            weechat::buffer_set($iset_buffer, "input_pos", "".$pos_space);
        }
    }
    weechat::bar_item_update("isetbar_help") if (weechat::config_boolean($options_iset{"show_help_bar"}) == 1);
    return weechat::WEECHAT_RC_OK;
}

sub iset_get_help
{
    my ($redraw) = ($_[0]);

    return '' if (weechat::config_boolean($options_iset{"show_help_bar"}) == 0);

    if (not defined $options_names[$current_line])
    {
        return "No option selected. Set a new filter using command line (use '*' to see all options)";
    }
    if ($options_name_copy eq $options_names[$current_line] and not defined $redraw)
    {
        return $description;
    }
    $options_name_copy = $options_names[$current_line];
    my $optionlist ="";
    $optionlist = weechat::infolist_get("option", "", $options_names[$current_line]);
    weechat::infolist_next($optionlist);
    my $full_name = weechat::infolist_string($optionlist,"full_name");
    my $option_desc = "";
    my $option_default_value = "";
    my $option_range = "";
    my $possible_values = "";
    my $re = qq(\Q$full_name);
    if (grep (/^$re$/,$options_names[$current_line]))
    {
        $option_desc = weechat::infolist_string($optionlist, "description_nls");
        $option_desc = weechat::infolist_string($optionlist, "description") if ($option_desc eq "");
        $option_desc = "No help found" if ($option_desc eq "");
        $option_default_value = weechat::infolist_string($optionlist, "default_value");
        $possible_values = weechat::infolist_string($optionlist, "string_values") if (weechat::infolist_string($optionlist, "string_values") ne "");
        if ((weechat::infolist_string($optionlist, "type") eq "integer") && ($possible_values eq ""))
        {
            $option_range = weechat::infolist_integer($optionlist, "min")
                ." .. ".weechat::infolist_integer($optionlist, "max");
        }
    }
    weechat::infolist_free($optionlist);
    iset_title();

    $description = weechat::color(weechat::config_color($options_iset{"color_help_option_name"})).$options_names[$current_line]
        .weechat::color("bar_fg").": "
        .weechat::color(weechat::config_color($options_iset{"color_help_text"})).$option_desc;

    # show additional infos like default value and possible values

    if (weechat::config_boolean($options_iset{"show_help_extra_info"}) == 1)
    {
        $description .=
            weechat::color("bar_delim")." ["
            .weechat::color("bar_fg")."default: "
            .weechat::color("bar_delim")."\""
            .weechat::color(weechat::config_color($options_iset{"color_help_default_value"})).$option_default_value
            .weechat::color("bar_delim")."\"";
        if ($option_range ne "")
        {
            $description .= weechat::color("bar_fg").", values: ".$option_range;
        }
        if ($possible_values ne "")
        {
            $possible_values =~ s/\|/", "/g;      # replace '|' to '", "'
            $description .= weechat::color("bar_fg").", values: ". "\"" . $possible_values . "\"";

        }
        $description .= weechat::color("bar_delim")."]";
    }
    return $description;
}

sub iset_check_condition_isetbar_cb
{
    my ($data, $modifier, $modifier_data, $string) = ($_[0], $_[1], $_[2], $_[3]);
    my $buffer = weechat::window_get_pointer($modifier_data, "buffer");
    if ($buffer ne "")
    {
        if ((weechat::buffer_get_string($buffer, "plugin") eq $LANG)
            && (weechat::buffer_get_string($buffer, "name") eq $PRGNAME))
        {
            return "1";
        }
    }
    return "0";
}

sub iset_show_bar
{
    my $show = $_[0];
    my $barhidden = weechat::config_get("weechat.bar.isetbar.hidden");
    if ($barhidden)
    {
        if ($show)
        {
            if (weechat::config_boolean($options_iset{"show_help_bar"}) == 1)
            {
                if (weechat::config_boolean($barhidden))
                {
                    weechat::config_option_set($barhidden, 0, 1);
                }
            }
        }
        else
        {
            if (!weechat::config_boolean($barhidden))
            {
                weechat::config_option_set($barhidden, 1, 1);
            }
        }
    }
}

sub iset_signal_buffer_switch_cb
{
    my $buffer_pointer = $_[2];
    my $show_bar = 0;
    $show_bar = 1 if (weechat::buffer_get_integer($iset_buffer, "num_displayed") > 0);
    iset_show_bar($show_bar);
    iset_check_line_outside_window() if ($buffer_pointer eq $iset_buffer);
    return weechat::WEECHAT_RC_OK;
}

sub iset_item_cb
{
    return iset_get_help();
}

sub iset_upgrade_ended
{
    iset_full_refresh();
}

sub iset_end
{
    # when script is unloaded, we hide bar
    iset_show_bar(0);
}

# -------------------------------[ mouse support ]-------------------------------------

sub hook_focus_iset_cb
{
    my %info = %{$_[1]};
    my $bar_item_line = int($info{"_bar_item_line"});
    undef my $hash;
    if (($info{"_buffer_name"} eq $PRGNAME) && $info{"_buffer_plugin"} eq $LANG && ($bar_item_line >= 0) && ($bar_item_line <= $#iset_focus))
    {
        $hash = $iset_focus[$bar_item_line];
    }
    else
    {
        $hash = {};
        my $hash_focus = $iset_focus[0];
        foreach my $key (keys %$hash_focus)
        {
            $hash->{$key} = "?";
        }
    }
    return $hash;
}

# _chat_line_y contains selected line
sub iset_hsignal_mouse_cb
{
    my ($data, $signal, %hash) = ($_[0], $_[1], %{$_[2]});

    return weechat::WEECHAT_RC_OK unless (@options_types);

    if ($hash{"_buffer_name"} eq $PRGNAME && ($hash{"_buffer_plugin"} eq $LANG))
    {
        if ($hash{"_key"} eq "button1")
        {
            iset_set_current_line($hash{"_chat_line_y"});
        }
        elsif ($hash{"_key"} eq "button2")
        {
            if ($options_types[$hash{"_chat_line_y"}] eq "boolean")
            {
                iset_set_option($options_names[$hash{"_chat_line_y"}], "toggle");
                iset_set_current_line($hash{"_chat_line_y"});
            }
            elsif ($options_types[$hash{"_chat_line_y"}] eq "string")
            {
                iset_set_current_line($hash{"_chat_line_y"});
                weechat::command("", "/$PRGNAME **set");
            }
        }
        elsif ($hash{"_key"} eq "button2-gesture-left" or $hash{"_key"} eq "button2-gesture-left-long")
        {
            if ($options_types[$hash{"_chat_line_y"}] eq "integer" or ($options_types[$hash{"_chat_line_y"}] eq "color"))
            {
                iset_set_current_line($hash{"_chat_line_y"});
                my $distance = distance($hash{"_chat_line_x"},$hash{"_chat_line_x2"});
                weechat::command("", "/repeat $distance /$PRGNAME **decr");
            }
        }
        elsif ($hash{"_key"} eq "button2-gesture-right" or $hash{"_key"} eq "button2-gesture-right-long")
        {
            if ($options_types[$hash{"_chat_line_y"}] eq "integer" or ($options_types[$hash{"_chat_line_y"}] eq "color"))
            {
                iset_set_current_line($hash{"_chat_line_y"});
                my $distance = distance($hash{"_chat_line_x"},$hash{"_chat_line_x2"});
                weechat::command("", "/repeat $distance /$PRGNAME **incr");
            }
        }
    }
    window_switch();
}

sub window_switch
{
    my $current_window = weechat::current_window();
    my $dest_window = weechat::window_search_with_buffer(weechat::buffer_search("perl","iset"));
    return 0 if ($dest_window eq "" or $current_window eq $dest_window);

    my $infolist = weechat::infolist_get("window", $dest_window, "");
    weechat::infolist_next($infolist);
    my $number = weechat::infolist_integer($infolist, "number");
    weechat::infolist_free($infolist);
    weechat::command("","/window " . $number);
}

sub distance
{
    my ($x1,$x2) = ($_[0], $_[1]);
    my $distance;
    $distance = $x1 - $x2;
    $distance = abs($distance);
    if ($distance > 0)
    {
        use integer;
        $distance  =  $distance / 3;
        $distance = 1 if ($distance == 0);
    }
    elsif ($distance == 0)
    {
        $distance = 1;
    }
    return $distance;
}

# -----------------------------------[ config ]---------------------------------------

sub iset_config_init
{
    $iset_config_file = weechat::config_new($ISET_CONFIG_FILE_NAME,"iset_config_reload_cb","");
    return if ($iset_config_file eq "");

    # section "color"
    my $section_color = weechat::config_new_section($iset_config_file,"color", 0, 0, "", "", "", "", "", "", "", "", "", "");
    if ($section_color eq "")
    {
        weechat::config_free($iset_config_file);
        return;
    }
    $options_iset{"color_option"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "option", "color", "Color for option name in iset buffer", "", 0, 0,
        "default", "default", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_option_selected"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "option_selected", "color", "Color for selected option name in iset buffer", "", 0, 0,
        "white", "white", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_type"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "type", "color", "Color for option type (integer, boolean, string)", "", 0, 0,
        "brown", "brown", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_type_selected"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "type_selected", "color", "Color for selected option type (integer, boolean, string)", "", 0, 0,
        "yellow", "yellow", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_value"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "value", "color", "Color for option value", "", 0, 0,
        "cyan", "cyan", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_value_selected"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "value_selected", "color", "Color for selected option value", "", 0, 0,
        "lightcyan", "lightcyan", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_value_diff"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "value_diff", "color", "Color for option value different from default", "", 0, 0,
        "magenta", "magenta", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_value_diff_selected"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "value_diff_selected", "color", "Color for selected option value different from default", "", 0, 0,
        "lightmagenta", "lightmagenta", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_value_undef"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "value_undef", "color", "Color for option value undef", "", 0, 0,
        "green", "green", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_value_undef_selected"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "value_undef_selected", "color", "Color for selected option value undef", "", 0, 0,
        "lightgreen", "lightgreen", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_bg_selected"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "bg_selected", "color", "Background color for current selected option", "", 0, 0,
        "red", "red", 0, "", "", "full_refresh_cb", "", "", "");
    $options_iset{"color_help_option_name"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "help_option_name", "color", "Color for option name in help-bar", "", 0, 0,
        "white", "white", 0, "", "", "bar_refresh", "", "", "");
    $options_iset{"color_help_text"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "help_text", "color", "Color for option description in help-bar", "", 0, 0,
        "default", "default", 0, "", "", "bar_refresh", "", "", "");
    $options_iset{"color_help_default_value"} = weechat::config_new_option(
        $iset_config_file, $section_color,
        "help_default_value", "color", "Color for default option value in help-bar", "", 0, 0,
        "green", "green", 0, "", "", "bar_refresh", "", "", "");

    # section "help"
    my $section_help = weechat::config_new_section($iset_config_file,"help", 0, 0, "", "", "", "", "", "", "", "", "", "");
    if ($section_help eq "")
    {
        weechat::config_free($iset_config_file);
        return;
    }
    $options_iset{"show_help_bar"} = weechat::config_new_option(
        $iset_config_file, $section_help,
        "show_help_bar", "boolean", "Show help bar", "", 0, 0,
        "on", "on", 0, "", "", "toggle_help_cb", "", "", "");
    $options_iset{"show_help_extra_info"} = weechat::config_new_option(
        $iset_config_file, $section_help,
        "show_help_extra_info", "boolean", "Show additional information in help bar (default value, max./min. value) ", "", 0, 0,
        "on", "on", 0, "", "", "", "", "", "");
    $options_iset{"show_plugin_description"} = weechat::config_new_option(
        $iset_config_file, $section_help,
        "show_plugin_description", "boolean", "Show plugin description in iset buffer", "", 0, 0,
        "off", "off", 0, "", "", "full_refresh_cb", "", "", "");

    # section "look"
    my $section_look = weechat::config_new_section($iset_config_file, "look", 0, 0, "", "", "", "", "", "", "", "", "", "");
    if ($section_look eq "")
    {
        weechat::config_free($iset_config_file);
        return;
    }
    $options_iset{"value_search_char"} = weechat::config_new_option(
        $iset_config_file, $section_look,
        "value_search_char", "string", "Trigger char to tell iset to search for value instead of option (for example: =red)", "", 0, 0,
        "=", "=", 0, "", "", "", "", "", "");
    $options_iset{"scroll_horiz"} = weechat::config_new_option(
        $iset_config_file, $section_look,
        "scroll_horiz", "integer", "scroll content of iset buffer n%", "", 1, 100,
        "10", "10", 0, "", "", "", "", "", "");
    $options_iset{"show_current_line"} = weechat::config_new_option(
        $iset_config_file, $section_look,
        "show_current_line", "boolean", "show current line in title bar.", "", 0, 0,
        "on", "on", 0, "", "", "", "", "", "");
    $options_iset{"use_mute"} = weechat::config_new_option(
        $iset_config_file, $section_look,
        "use_mute", "boolean", "/mute command will be used in input bar", "", 0, 0,
        "off", "off", 0, "", "", "", "", "", "");
}

sub iset_config_reload_cb
{
    my ($data,$config_file) = ($_[0], $_[1]);
    return weechat::config_reload($config_file)
}

sub iset_config_read
{
    return weechat::config_read($iset_config_file) if ($iset_config_file ne "");
}

sub iset_config_write
{
    return weechat::config_write($iset_config_file) if ($iset_config_file ne "");
}

sub full_refresh_cb
{
    iset_full_refresh();
    return weechat::WEECHAT_RC_OK;
}

sub bar_refresh
{
    iset_get_help(1);
    weechat::bar_item_update("isetbar_help") if (weechat::config_boolean($options_iset{"show_help_bar"}) == 1);
    return weechat::WEECHAT_RC_OK;
}

sub toggle_help_cb
{
    my $value = weechat::config_boolean($options_iset{"show_help_bar"});
    iset_show_bar($value);
    return weechat::WEECHAT_RC_OK;
}

# -----------------------------------[ main ]-----------------------------------------

weechat::register($PRGNAME, $AUTHOR, $VERSION, $LICENSE,
                  $DESCR, "iset_end", "");

$wee_version_number = weechat::info_get("version_number", "") || 0;

iset_config_init();
iset_config_read();

weechat::hook_command($PRGNAME, "Interactive set", "f <file> || s <section> || [=][=]<text>",
                      "f file   : show options for a file\n".
                      "s section: show options for a section\n".
                      "text     : show options with 'text' in name\n".
                      weechat::config_string($options_iset{"value_search_char"})."text    : show options with 'text' in value\n".
                      weechat::config_string($options_iset{"value_search_char"}).weechat::config_string($options_iset{"value_search_char"})."text   : show options with exact 'text' in value\n\n".
                      "Keys for iset buffer:\n".
                      "f11,f12        : move iset content left/right\n".
                      "up,down        : move one option up/down\n".
                      "pgup,pdwn      : move one page up/down\n".
                      "home,end       : move to first/last option\n".
                      "ctrl+'L'       : refresh options and screen\n".
                      "alt+space      : toggle boolean on/off\n".
                      "alt+'+'        : increase value (for integer or color)\n".
                      "alt+'-'        : decrease value (for integer or color)\n".
                      "alt+'i',alt+'r': reset value of option\n".
                      "alt+'i',alt+'u': unset option\n".
                      "alt+enter      : set new value for option (edit it with command line)\n".
                      "text,enter     : set a new filter using command line (use '*' to see all options)\n".
                      "alt+'v'        : toggle help bar on/off\n".
                      "alt+'p'        : toggle option \"show_plugin_description\" on/off\n".
                      "\n".
                      "Mouse actions:\n".
                      "wheel up/down                 : move cursor up/down\n".
                      "left button                   : select an option from list\n".
                      "right button                  : toggle boolean (on/off) or set a new value for option (edit it with command line)\n".
                      "right button + drag left/right: increase/decrease value (for integer or color)\n".
                      "\n".
                      "Examples:\n".
                      "  show options for file 'weechat'\n".
                      "    /iset f weechat\n".
                      "  show options for file 'irc'\n".
                      "    /iset f irc\n".
                      "  show options for section 'look'\n".
                      "    /iset s look\n".
                      "  show all options with text 'nicklist' in name\n".
                      "    /iset nicklist\n".
                      "  show all values which contain 'red'. ('" . weechat::config_string($options_iset{"value_search_char"}) . "' is a trigger char).\n".
                      "    /iset ". weechat::config_string($options_iset{"value_search_char"}) ."red\n".
                      "  show all values which hit 'off'. ('" . weechat::config_string($options_iset{"value_search_char"}) . weechat::config_string($options_iset{"value_search_char"}) . "' is a trigger char).\n".
                      "    /iset ". weechat::config_string($options_iset{"value_search_char"}) . weechat::config_string($options_iset{"value_search_char"}) ."off\n".
                      "  show options for file 'weechat' which contains value 'off'\n".
                      "    /iset f weechat ".weechat::config_string($options_iset{"value_search_char"})."off\n".
                      "",
                      "", "iset_cmd_cb", "");
weechat::hook_signal("upgrade_ended", "iset_upgrade_ended", "");
weechat::hook_signal("window_scrolled", "iset_signal_window_scrolled_cb", "");
weechat::hook_signal("buffer_switch", "iset_signal_buffer_switch_cb","");
weechat::bar_item_new("isetbar_help", "iset_item_cb", "");
weechat::bar_new("isetbar", "on", "0", "window", "", "top", "horizontal",
                 "vertical", "3", "3", "default", "cyan", "default", "1",
                 "isetbar_help");
weechat::hook_modifier("bar_condition_isetbar", "iset_check_condition_isetbar_cb", "");
weechat::hook_config("*", "iset_config_cb", "");
$iset_buffer = weechat::buffer_search($LANG, $PRGNAME);
iset_init() if ($iset_buffer ne "");

if ($wee_version_number >= 0x00030600)
{
    weechat::hook_focus("chat", "hook_focus_iset_cb", "");
    weechat::hook_hsignal($PRGNAME."_mouse", "iset_hsignal_mouse_cb", "");
    weechat::key_bind("mouse", \%mouse_keys);
}
