-- Migrate the force_grass to force_tiles new setting!
if storage.ocfg.spawn_general.force_tiles == nil then
    storage.ocfg.spawn_general.force_tiles = true
    log("Updating spawn_general config with new 'force_tiles' setting.")
end

-- Make sure fulgora config is set up if it is missing.
if script.active_mods["space-age"] ~= nil then
    if (storage.ocfg.surfaces_config["fulgora"] == nil) or
        (storage.ocfg.surfaces_config["fulgora"].spawn_config.fill_tile == nil) then
        storage.ocfg.surfaces_config["fulgora"] =
        {
            spawn_config = FULGORA_SPAWN_CONFIG,
            starting_items = FULGORA_STARTER_ITEMS
        }
        log("Updating fulgora config with new spawn_config and starting_items.")
    end
end

-- Refresh the Nauvis config if it is missing the new settings:
if storage.ocfg.surfaces_config["nauvis"].spawn_config.fill_tile == nil then
    storage.ocfg.surfaces_config["nauvis"] = {
        spawn_config = NAUVIS_SPAWN_CONFIG,
        starting_items = NAUVIS_STARTER_ITEMS
    }
    log("Updating nauvis config with new spawn_config and starting_items.")
end

-- New startup setting that is also cached in storage.
if storage.ocfg.gameplay.default_enable_secondary_spawns_on_other_surfaces == nil then
    storage.ocfg.gameplay.default_enable_secondary_spawns_on_other_surfaces = false
    log("Updating gameplay config with new default_enable_secondary_spawns_on_other_surfaces setting.")
end

--Make sure new planets get init'd. No harm in running this multiple times.
SeparateSpawnsInitPlanets()

-- Block spam. Highhly requested.
game.technology_notifications_enabled = false
log("Disabling technology notifications.")

-- New global teleport queue for nil characters.
if storage.nil_character_teleport_queue == nil then
    storage.nil_character_teleport_queue = {}
end

-- Make sure all existing spawns have the generated status set.
for surface_index, spawns in pairs(storage.unique_spawns) do
    for player_index, spawn in pairs(spawns) do
        if spawn.generated == nil then
            spawn.generated = true
        end
    end
end

-- Make sure any existing players current surface is tracked
for _, player in pairs(game.players) do
    if player.character then
        storage.player_surfaces[player.name] = player.character.surface.name
    end
end