--   This file is part of Reno desktop.
--
--  Reno desktop 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.
--
--  Reno desktop 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 Reno desktop. If not, see <https://www.gnu.org/licenses/>. 
-- XFCE style autostart system with a system to automatically kill children just to fuck over Steam. (now with SMЯT targeting software package!)
local awful = require("awful")
local gears = require("gears")
local gfs = gears.filesystem
local menu_utils = require("menubar.utils")
local hide_ids = {}
local related_ids = {}
local settings = config.autostart
local stop_checking = false
-- I know this is linux specific, blame Steam for creating a triple-forking launcher with no startup id.
-- I love the fact that valve is supportive of linux and thinks it's the future of gaming and all that
-- but you could've just done the due diligence and, yk, maybe research how things work with XDG?
-- P.S. if you know how to make this function work in similar vein on BSD, feel free to contribute
local function is_child_of(pid,related)
    related = related or pid
    local ppidfile = io.open("/proc/"..tostring(pid).."/status","rb")
    if not ppidfile then return false end
    local ppid = ppidfile:read("*a"):match("PPid:%s*(%d+)")
    ppidfile:close()
    if (not ppid) or (ppid == "1") then return false end
    if hide_ids[tonumber(ppid)] then
        related_ids[related] = tonumber(ppid)
        return true
    else
        return is_child_of(ppid,related)
    end
end
-- Play whack-a-mole with the clients that match ids to hide
-- NO MORE MR NICE GUY, until the user EXPLICITLY activates the client,
-- it's being hidden.
local callback = function(c)
    if not settings.minimize_enable then return end
    if stop_checking then return end
    gears.timer.delayed_call(function()
        local kill_later = false
        if c.pid and hide_ids[c.pid] then
            kill_later = true
        end
        if c.startup_id and hide_ids[c.startup_id] then
            kill_later = true
        end
        if c.pid and is_child_of(c.pid) then
            kill_later = true
        end
        if kill_later then
            c.minimized = true
        end
    end)
end
client.connect_signal("focus",callback)
client.connect_signal("manage",callback)
-- if the client has been mouse pressed we no longer hide it or any of its siblings - user needs the client to be active.
client.connect_signal("request::activate",function(c,reason)
    if (reason ~= "mouse_click") and (reason ~= "tasklist") then
        return
    end
    if c.pid then
        hide_ids[c.pid] = nil
        if related_ids[c.pid] then
            hide_ids[related_ids[c.pid]] = nil
        end
    end
    if c.startup_id then
        hide_ids[c.startup_id] = nil
    end
end)
-- this ain't happy hour - stop hitting everything in sight.
gears.timer {
    timeout = settings.minimize_timeout or 30,
    autostart = true,
    single_shot = true,
    callback = function()
        stop_checking = true
        hide_ids = {}
    end
}
local stdir = os.getenv("XDG_RUNTIME_DIR").."/.awesome_startup/"
gfs.make_directories(stdir)
awful.spawn.with_line_callback("find "..gfs.get_xdg_config_home().."autostart/ -name *.desktop",{
    stdout = function(line)
        local data = menu_utils.parse_desktop_file(line)
        if (data.RunHook == "0") or (data.RunHook == nil) then
            if not gfs.file_readable(stdir..line:match("[^/]*$")) then
                local npid,nsnid = awful.spawn(data.Exec:gsub("%%%w",""))
                io.open(stdir..line:match("[^/]*$"),"w"):write(npid):close()
                if data.Hidden then
                    if npid then
                        hide_ids[npid] = true
                    end
                    if nsnid then
                        hide_ids[nsnid] = true
                    end
                end
            end
        end
    end
})