local serial = require "serialization"

local rc = {}
local service = {}
local cfg = {}
cfg.enabled = {}

local function loadConfig()
 local f = io.open("/boot/cfg/rc.cfg","rb")
 if not f then return false end
 cfg = serial.unserialize(f:read("*a")) or {}
 f:close()
 cfg.enabled = cfg.enabled or {}
 return true
end
local function saveConfig()
 local f = io.open("/boot/cfg/rc.cfg","wb")
 if not f then return false end
 f:write(serial.serialize(cfg))
 f:close()
 return true
end

function rc.load(name,force)
 if force then
  rc.stop(name)
  service[name] = nil
 end
 if service[name] then return true end
 service[name] = setmetatable({},{__index=_G})
 local f = io.open("/boot/service/"..name..".lua","rb")
 local res = load(f:read("*a"),name,"t",service[name])()
 f:close()
 return res
end

function rc.stop(name,...)
 if not service[name] then return false, "service not found" end
 service[name].stop(...)
end

function rc.start(name,...)
 rc.load(name)
 if not service[name] then return false, "service not found" end
 return service[name].start(...)
end

function rc.restart(name)
 rc.stop(name)
 rc.start(name)
end

function rc.enable(name)
 for k,v in pairs(cfg.enabled) do
  if v == name then return false end
 end
 saveConfig()
end
function rc.disable(name)
 local disabled = false
 for k,v in pairs(cfg.enabled) do
  if v == name then table.remove(cfg.enabled,k) disabled = true break end
 end
 saveConfig()
 return disabled
end

loadConfig()

for k,v in pairs(cfg.enabled) do
 rc.start(v)
end

_G.service = service

return rc