-- The functions and variables in this file are only for use in the mod itself. Those that do real work should be local and wrapped in public functions

local debug = true

local function say(text)
    if yl_template.debug then
        core.log("action", "[MOD] yl_template : " .. text)
    end
end

local function save_path(file)
    return yl_template.worldpath .. file .. ".json"
end

local function save_json(filename, content)
    if type(filename) ~= "string" or type(content) ~= "table" then
        return false
    end
    local savepath = save_path(filename)
    local savecontent = minetest.write_json(content)
    return minetest.safe_file_write(savepath, savecontent)
end


local function load_json(filename) -- returns the saved dialog
    local savepath = save_path(filename)

    local file, err = io.open(savepath, "r")
    if err then
        return {}
    end
    io.input(file)
    local savecontent = io.read()
    local content = minetest.parse_json(savecontent)
    io.close(file)

    if type(content) ~= "table" then
        content = {}
    end

    return content
end

-- Public functions wrap the private ones, so they can be exchanged easily

function yl_template.load(filename, ...)
    return load_json(filename, ...)
end

function yl_template.save(filename, content, ...)
    return save_json(filename, content, ...)
end