#
# Aura Engine (https://gitlab.servus.at/aura/engine)
#
# Copyright (C) 2017-2020 - The Aura Engine Team.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


input_filesystem_0 = request.equeue(id="in_filesystem_0")
input_filesystem_1 = request.equeue(id="in_filesystem_1")
#input_fs = cue_cut(mksafe(request.equeue(id="fs")))


# Call engine core handler to "on_play" (e.g. to update track service)

def do_meta_filesystem(meta) =
    filename = meta["filename"]
    # artist = meta["artist"]
    # title = meta["title"]
    # print('CALLING GURU #{list.assoc(default="", "install_dir", ini)}/guru.py')
    system('#{list.assoc(default="", "install_dir", ini)}/guru.py --on_play "#{filename}" &')
end

input_filesystem_0 = on_metadata(id="in_filesystem_0", do_meta_filesystem, input_filesystem_0)
input_filesystem_1 = on_metadata(id="in_filesystem_1", do_meta_filesystem, input_filesystem_1)


def clear_items(ns) =
    ret = server.execute("#{source.id(ns)}.primary_queue")
    ret = list.hd(default="", ret)
    if ret == "" then
        log("Queue cleared.")
        (-1.)
    else
        log("There are still items in the queue, trying skip ...")
        source.skip(ns)
        (0.1)
    end
end

def clear_queue(ns) =
    add_timeout(fast=false, 0.5, {clear_items(ns)})
end

# Clear Queue 0
server.register(namespace=source.id(input_filesystem_0),
        description="Clear all items of the filesystem Queue A.",
        usage="clear",
        "clear_filesystem_0",

    fun (s) -> 
        begin 
            clear_queue(input_filesystem_0) 
            "Clearing done."     
        end
    )

# Clear Queue 1
server.register(namespace=source.id(input_filesystem_1),
        description="Clear all items of the filesystem Queue B.",
        usage="clear",
        "clear_filesystem_1",

    fun (s) -> 
        begin 
            clear_queue(input_filesystem_1) 
            "Clearing done." 
        end
    )