local result_items_list = {}

--Get all craftable items in game
script.on_load(function()
    
    local item_prototypes = prototypes.get_item_filtered({})
    local recipes = prototypes.get_recipe_filtered({})
    local valid_recipes = {}

    for recipe_name, recipe in pairs(recipes) do
        if not recipe.hidden_from_player_crafting then
            valid_recipes[recipe_name] = true 
        end
    end

    for _, item_prototype in pairs(item_prototypes) do
        local name = item_prototype.name

        if valid_recipes[name] or string.find(name, "ore") then
            table.insert(result_items_list, name)
        end
    
    end
end)

--Debug output
script.on_load(function()
    print( "Mod loaded")
    print( valid_recipes[0])
    print( result_items_list[0])
end)

--Give random item on ore mined
script.on_event(defines.events.on_player_mined_entity, function(event)
    local entity = event.entity
    if entity and entity.valid and entity.type == "resource" then

        event.buffer.clear()
        
        local item_count = math.random(1, 10)
        local item_name = result_items_list[math.random(0, #result_items_list)]
        local player = game.get_player(event.player_index)
        
        local quality_enabled = script.active_mods["quality"] or false
        local quality = nil

        if quality_enabled then
            quality = "normal"
        end

        if player.can_insert{name = item_name, count = item_count, quality = quality} then
            player.insert{name = item_name, count = item_count, quality = quality}
        else
            message(player, "inventory-full")
        end

    end
end)