local path_src = File.GetAbsolute("./src/")
local path_out = File.GetAbsolute("./out/")
-- 创建输出目录
File.CreateFolder(path_out)

local path_key = path_src .. "key.json"

if File.IsExist(path_key) then
    local key = Crypto.GenerateKeyAes256()
    local j = {}
    j["key"] = to_string_hex(key._key)
    j["iv"] = to_string_hex(key._iv, true)
    j["tag"] = to_string(key._tag)

    -- test json
    local j1= {}
    j1["a"] = "xxx"
    j1["arr"] = {1, 2, 3}
    j["test"] = j1

    if File.SaveString(json.encode(j), path_key) then
        print(path_key .. "已保存")
    else
        print(path_key .. "保存失败")
    end
end

local str = File.GetString(path_src .. "key.json")
local j = json.decode(str)

print(j.key)
print(j.test.arr)
print(j.test.arr[1])

local key = Crypto.Aes256Key()
key._key = CreateBufferHex(j.key)
key._iv = CreateBufferHex(j.iv)
key._tag = CreateBufferHex(j.tag)

local out = Crypto.EncryptAes256(File.GetBuffer(path_src .. "apple.png"), key)

File.SaveBuffer(out, path_out .. "apple.aes256")

-- print(param._src.."->"..param._out)
print "此工具会将src文件夹的apple.png加密为 apple.aes256"

pause()