--[[

        usr_desc_prefix.lua v0.04 by blastbeat

        - this script adds a prefix to the desc of an user
        - you can use the prefix table to define different prefixes for different user levels

        - changelog 0.04:
          - updated script api

        - changelog 0.03:
          - some fixes

        - changelog 0.02:
          - updated script api

]]--

--// settings begin //--

local default = hub.escapeto "[ UNKNOWN ] "    -- default nick prefix
local prefix_table = {

    --// [ user_level ] = level_prefix, //--

    [ 0 ] = hub.escapeto "[ UNREG ] ",    -- use hub.escapeto to escape whitespaces
    [ 10 ] = hub.escapeto "[ GUEST ] ",
    [ 20 ] = hub.escapeto "[ REG ] ",
    [ 30 ] = hub.escapeto "[ VIP ] ",
    [ 40 ] = hub.escapeto "[ SVIP ] ",
    [ 60 ] = hub.escapeto "[ OPERATOR ] ",
    [ 80 ] = hub.escapeto "[ ADMIN ] ",
    [ 100 ] = hub.escapeto "[ HUBOWNER ] ",

}

--// settings end //--

local utf_len = utf.len
local utf_sub = utf.sub

local hub_sendtoall = hub.sendtoall

hub.setlistener( "onStart", { },    -- add prefix to already connected users
    function( )
        for sid, user in pairs( hub.getusers( ) ) do
            --if not user:isbot( ) then
                local prefix = prefix_table[ user:level( ) ] or default
                local desc = prefix .. ( user:description( ) or "" )
                user:inf( ):setnp( "DE", desc )
                hub_sendtoall( "BINF " .. sid .. " DE" .. desc .. "\n" )
            --end
        end
        return nil
    end
)

hub.setlistener( "onExit", { },    -- remove prefix on script exit
    function( )
        for sid, user in pairs( hub.getusers( ) ) do
            --if not user:isbot( ) then
                local prefix = prefix_table[ user:level( ) ] or default
                local desc = utf_sub( user:description( ), utf_len( prefix ) + 1, -1 )
                user:inf( ):setnp( "DE", desc or "" )
                hub_sendtoall( "BINF " .. sid .. " DE" .. desc .. "\n" )
            --end
        end
        return nil
    end
)

hub.setlistener( "onInf", { },    -- add prefix to incoming inf
    function( user, cmd )
        local prefix = prefix_table[ user:level( ) ] or default
        local desc = cmd:getnp "DE"
        if desc then
            local desc = prefix .. desc
            cmd:setnp( "DE", desc )
            user:inf( ):setnp( "DE", desc )
        end
        return nil
    end
)

hub.setlistener( "onConnect", { },    -- add prefix to connecting user
    function( user )
        local prefix = prefix_table[ user:level( ) ] or default
            user:inf( ):setnp( "DE", prefix .. ( user:description( ) or "" ) )
        return nil
    end 
)

hub.debug( "** Loaded usr_desc_prefix.lua **" )