local timestampMap = {}
local timestampMapCache = {}

auForEach(auBuild.args.files, function(file)
    timestampMap[file] = os.stat(file).mtime
end)

local cachePath = path.join(Aurora.Settings.sAbsCompilerWd, auBuild.args.hash) .. ".rsc"

if (os.isfile(cachePath)) then
    timestampMapCache = json.decode(io.readfile(cachePath))
end

io.writefile(cachePath, json.encode(timestampMap))

local changedFiles = {}
local unchangedFiles = {}

if (type(timestampMapCache) == "table") then
    auForEachKV(timestampMap, function(file, changed)
        if (timestampMapCache[file] == changed) then
            table.insert(unchangedFiles, file)
        else
            table.insert(changedFiles, file)
        end
    end)
else
    auForEachKV(timestampMap, function(file, changed)
        table.insert(changedFiles, file)
    end)
end

auResourceCompiler = {
    unchangedFiles = unchangedFiles,
    changedFiles = changedFiles,
    arguments = auBuild.args.ext
}

function resourceExit(exitCode)
    if (not exitCode) then
        os.remove(cachePath)
    end

    os.exit(exitCode)    
end

function resourceRun(cmd)
    if (os.host() == "windows") then
        return os.execute("call " .. cmd)
    else
        return os.execute(cmd)
    end
end

function resourceRunAndExit(cmd)
    if (os.host() == "windows") then
        resourceExit(os.execute("call " .. cmd))
    else
        resourceExit(os.execute(cmd))
    end
end

auRequireAbs(auBuild.args.script)