102 lines
2.5 KiB
Lua
102 lines
2.5 KiB
Lua
local diskDrive = peripheral.find("drive")
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local function getFilePath()
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if diskDrive and diskDrive.isDiskPresent() then
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local path = diskDrive.getMountPath()
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if path then
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return fs.combine(path, "data.tbl")
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end
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end
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return nil
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end
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local function loadData()
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local path = getFilePath()
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if path and fs.exists(path) then
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local file = fs.open(path, "r")
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local content = file.readAll()
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file.close()
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local parsed
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if content then
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parsed = textutils.unserialize(content)
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end
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return parsed or {}
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end
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return {}
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end
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local function saveData(data)
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local path = getFilePath()
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if path then
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local file = fs.open(path, "w")
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file.write(textutils.serialize(data))
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file.close()
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return true
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end
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return false
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end
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local function generateGuid()
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local template ='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
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return string.gsub(template, '[xy]', function (c)
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local v = (c == 'x') and math.random(0, 0xf) or math.random(8, 0xb)
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return string.format('%x', v)
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end)
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end
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local function getValue(key)
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local data = loadData()
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for _, item in ipairs(data) do
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if item.Key == key then
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return item.Value
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end
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end
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return nil
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end
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local function updateValue(key, value)
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local data = loadData()
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for _, item in ipairs(data) do
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if item.Key == key then
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item.Value = value
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saveData(data)
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return true
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end
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end
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return false
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end
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local function writeValue(key, value)
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local data = loadData()
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local guid = generateGuid()
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table.insert(data, { GeneratedGuid = guid, Key = key, Value = value })
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saveData(data)
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return guid
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end
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local function initialize()
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local monitor = peripheral.find("monitor")
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if monitor then monitor.write("Initializing Data Storage...") end
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if diskDrive and diskDrive.isDiskPresent() then
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if monitor then monitor.write("Disk detected. Initializing data storage.") end
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local path = getFilePath()
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if path and not fs.exists(path) then
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saveData({})
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end
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return true
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end
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return false
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end
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local function getRead(key)
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local value = getValue(key)
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if value then
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return value
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end
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print("Enter value for " .. key .. ":")
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local input = read()
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writeValue(key, input)
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return input
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end
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return { getValue = getValue, updateValue = updateValue, writeValue = writeValue, initialize = initialize, getRead = getRead } |