local mod_storage = minetest.get_mod_storage();

-- The path to this mod, for including files
local modpath = minetest.get_modpath("cartographer");

-- The API object
cartographer = {
    scan_queue = {},
};
_cartographer = {
    maps = minetest.deserialize(mod_storage:get_string("maps")) or {},
    next_map_id = mod_storage:get_int("next_map_id"),

    materials_by_name = {},
    materials_by_group = {},
};

if _cartographer.next_map_id == 0 then
    _cartographer.next_map_id = 1;
end

local map_data = {
    generated = minetest.deserialize(mod_storage:get_string("map")) or {},
}

local function save()
    mod_storage:set_string("maps", minetest.serialize(_cartographer.maps));
    mod_storage:set_int("next_map_id", _cartographer.next_map_id);
    mod_storage:set_string("map", minetest.serialize(map_data.generated));
end
minetest.register_on_shutdown(save);
minetest.register_on_leaveplayer(save);

local function periodic_save()
    save();
    minetest.after(60, periodic_save);
end
minetest.after(60, periodic_save);

local chunk_size = 16;
local chunk = {
    to = function(coord)
        return math.floor(coord / chunk_size);
    end,

    from = function(coord)
        return math.floor(coord * chunk_size);
    end
};

local biome_lookup = {};
local marker_lookup = {};

-- Includes
cartographer.skin = loadfile(modpath .. "/skin_api.lua") ();
cartographer.gui = loadfile(modpath .. "/formspec.lua") ();
loadfile(modpath .. "/scanner.lua") (map_data, chunk);
loadfile(modpath .. "/map_api.lua") (chunk, biome_lookup, marker_lookup);
loadfile(modpath .. "/items.lua") (chunk, marker_lookup, cartographer.gui, cartographer.skin);
loadfile(modpath .. "/map_formspec.lua") (map_data);
loadfile(modpath .. "/commands.lua") ();
loadfile(modpath .. "/table.lua") (_cartographer.materials_by_name, _cartographer.materials_by_group, cartographer.gui, cartographer.skin);