local function getPath(projName)
    local proj = auGetProjectMeta(projName)

    local basePath = Aurora.Settings.sAbsRoot

    if (proj and proj.path) then
        basePath = proj.path
    end

    local baseProto = path.join(Aurora.Settings.sAbsCompilerWd, "ProtobufTemp")

    local targetBase = nil
    if (projName) then
        targetBase = path.join(Aurora.Settings.sAbsCompilerWd, "ProtobufTemp", projName)
    else
        targetBase = path.join(Aurora.Settings.sAbsCompilerWd, "ProtobufTemp")
    end
    
    os.mkdir(baseProto)
    os.mkdir(targetBase)

    return targetBase, basePath
end

local function addProtobufFiles(files, extended)
    local grpc = (extended or {}).grpc
    local auRPC = (extended or {}).auRPC
    local targetBase, basePath  = getPath(auGetCurrentProject())

    files = os.matchfiles(files)

    local compiledFiles = auMap(files, function(file)
        local rel = path.getrelative(basePath, file)
        return path.join(targetBase, rel:sub(1, #rel - 6)) .. ".pb.cc"
    end)

    local grpcFiles = auMap(files, function(file)
        local rel = path.getrelative(basePath, file)
        return path.join(targetBase, rel:sub(1, #rel - 6)) .. ".grpc.pb.cc"
    end)

    local auRpcFiles = auMap(files, function(file)
        local rel = path.getrelative(basePath, file)
        return path.join(targetBase, rel:sub(1, #rel - 6)) .. ".aurpc.pb.cc"
    end)

    includedirs(targetBase)

    _G.files(compiledFiles)

    if (grpc) then
        _G.files(grpcFiles)
    end

    if (auRPC) then
        _G.files(auRpcFiles)
    end

    auAddResource(files, {targetBase = targetBase, basePath = basePath, grpc = grpc, auRPC = auRPC}, path.join(Aurora.Settings.sAbsScripts, "Core", "Protobuf", "run.lua"))
end

local function includeProtobuf(projName)
    local targetBase, basePath  = getPath(projName)
    includedirs(targetBase)
end

return {
    addProtobufFiles = addProtobufFiles,
    linkProject = includeProtobuf
}