--[[
 $Id$

 Copyright © 2012, 2017 VideoLAN and AUTHORS

 Authors: Ludovic Fauvet <etix@videolan.org>
          Pierre Ynard

 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 2 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, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
--]]

-- Probe function.
function probe()
    return ( vlc.access == "http" or vlc.access == "https" )
        and string.match( vlc.path, "^www%.liveleak%.com/view" )
end

-- Util function
function find( haystack, needle )
    local _,_,r = string.find( haystack, needle )
    return r
end

-- Parse function.
function parse()
    local p = {}
    local title
    local art
    local video

    while true do
        line = vlc.readline()
        if not line then break end

        -- Try to find the title
        if string.match( line, '<span class="section_title"' ) then
            title = find( line, '<span class="section_title"[^>]*>(.-)<' )
            title = vlc.strings.resolve_xml_special_chars( title )
        end

        -- Try to find the art
        if not art then
            art = string.match( line, '<meta property="og:image" content="([^"]+)"' )
        end

        -- Try to find the video
        if not video and string.match( line, '<source ' ) then
            -- Apparently the two formats are listed HD first, SD second
            local prefres = vlc.var.inherit( nil, 'preferred-resolution' )
            for src in string.gmatch( line, '<source src="([^"]+)"' ) do
                video = src

                if prefres < 0 then
                    break
                end
                local height = tonumber( string.match( src, '_(%d+)p%.mp4' ) )
                if ( not height ) or height <= prefres then
                    break
                end
            end
        end

    end
    if video then
        table.insert( p, { path = video; name = title; arturl = art; } )
    end
    return p
end