module("luci.controller.AdGuardHome",package.seeall)
nixio=require"nixio"
local uci=require"luci.model.uci".cursor()
function index()
entry({"admin", "services", "AdGuardHome"},
		alias("admin", "services", "AdGuardHome", "base"),
		_("AdGuard Home"), 10).dependent = true
	entry({"admin","services","AdGuardHome","base"},cbi("AdGuardHome/base"),_("Base Setting"),1).leaf = true
    entry({"admin","services","AdGuardHome","log"},form("AdGuardHome/log"),_("Log"),2).leaf = true
	entry({"admin","services","AdGuardHome","manual"},cbi("AdGuardHome/manual"),_("Manual Config"),3).leaf = true
    entry({"admin","services","AdGuardHome","status"},call("act_status")).leaf=true
	entry({"admin", "services", "AdGuardHome", "check"}, call("check_update"))
	entry({"admin", "services", "AdGuardHome", "doupdate"}, call("do_update"))
	entry({"admin", "services", "AdGuardHome", "getlog"}, call("get_log"))
	entry({"admin", "services", "AdGuardHome", "dodellog"}, call("do_dellog"))
end 

function act_status()
	local e={}
	binpath=uci:get("AdGuardHome","AdGuardHome","binpath")
	e.running=luci.sys.call("pgrep "..binpath.." >/dev/null")==0
	luci.http.prepare_content("application/json")
	luci.http.write_json(e)
end
function do_update()
	nixio.fs.writefile("/var/run/lucilogpos","0")
	luci.sys.exec("(touch /var/run/update_core ; sh /usr/share/AdGuardHome/update_core.sh >/tmp/AdGuardHome_update.log;rm /var/run/update_core) &")
	luci.http.prepare_content("application/json")
	luci.http.write('')
end
function get_log()
	local logfile=uci:get("AdGuardHome","AdGuardHome","logfile")
	if (logfile==nil) then
	luci.http.write("no log available\n")
	return
	elseif (logfile=="syslog") then
		if not nixio.fs.access("/var/run/AdGuardHomesyslog") then
			luci.sys.exec("(/usr/share/AdGuardHome/getsyslog.sh &); sleep 1;")
		end
		logfile="/tmp/AdGuardHometmp.log"
		nixio.fs.writefile("/var/run/AdGuardHomesyslog","1")
	end
	luci.http.prepare_content("text/plain; charset=utf-8")
	logpos=nixio.fs.readfile("/var/run/lucilogpos")
	if (logpos ~= nil) then
		fdp=tonumber(logpos)
	else
		fdp=0
	end
	f=io.open(logfile, "r+")
	f:seek("set",fdp)
	a=f:read(2048000)
	if (a==nil) then
		a=""
	end
	fdp=f:seek()
	nixio.fs.writefile("/var/run/lucilogpos",tostring(fdp))
	f:close()
	luci.http.write(a)
end
function do_dellog()
	logfile=uci:get("AdGuardHome","AdGuardHome","logfile")
	nixio.fs.writefile(logfile,"")
	luci.http.prepare_content("application/json")
	luci.http.write('')
end
function check_update()
	luci.http.prepare_content("text/plain; charset=utf-8")
	logpos=nixio.fs.readfile("/var/run/lucilogpos")
	if (logpos ~= nil) then
	fdp=tonumber(logpos)
	else
	fdp=0
	end
	f=io.open("/tmp/AdGuardHome_update.log", "r+")
	f:seek("set",fdp)
	a=f:read(2048000)
	if (a==nil) then
	a=""
	end
	fdp=f:seek()
	nixio.fs.writefile("/var/run/lucilogpos",tostring(fdp))
	f:close()
if nixio.fs.access("/var/run/update_core") then
	luci.http.write(a)
else
	luci.http.write(a.."\0")
end
end