// Copyright 2016-2017, Pulumi Corporation.  All rights reserved.

syntax = "proto3";

import "google/protobuf/struct.proto";

package lumirpc;

// LanguageRuntime is the interface that the planning monitor uses to drive execution of an interpreter responsible
// for confguring and creating resource objects.
service LanguageRuntime {
    rpc Run(RunRequest) returns (RunResponse) {}
}

// RunRequest asks the interpreter to execute a program.
message RunRequest {
    string pwd = 1;                 // the program's working directory.
    string program = 2;             // the path to the program to execute.
    repeated string args = 3;       // any arguments to pass to the program.
    map<string, string> config = 4; // the configuration variables to apply before running.
    bool dryRun = 5;                // true if we're only doing a dryrun (plan).
    int32 parallel = 6;             // the degree of parallelism for resource operations (<=1 for serial).
}

// RunResponse is the response back from the interpreter/source back to the monitor.
message RunResponse {
    string error = 1; // an unhandled error if any occurred.
}

// ResourceMonitor is the interface a source uses to talk back to the planning monitor orchestrating the execution.
service ResourceMonitor {
    rpc NewResource(NewResourceRequest) returns (NewResourceResponse) {}
}

// NewResourceRequest contains information about a resource object that was newly allocated.
message NewResourceRequest {
    string type = 1;                   // the type of the object allocated.
    string name = 2;                   // the name, for URN purposes, of the object.
    google.protobuf.Struct object = 3; // an object produced by the interpreter/source.
}

// NewResourceResponse reflects back the properties initialized during creation, if applicable.
message NewResourceResponse {
    string id = 1;                     // the unique ID assigned by the provider.
    string urn = 2;                    // the URN assigned by the fabric.
    google.protobuf.Struct object = 3; // the resulting object properties, including provider defaults.
    bool stable = 4;                   // if true, the object's state is stable and may be trusted not to change.
}