syntax = "proto3";

package sanderling.driver.v1;

option go_package = "github.com/priyanshujain/sanderling/proto/driverpb;driverpb";
option java_package = "dev.sanderling.driver.v1";
option java_multiple_files = true;

service Driver {
  rpc Launch(LaunchRequest) returns (Empty);
  rpc Terminate(Empty) returns (Empty);

  rpc Tap(Point) returns (Empty);
  rpc TapSelector(Selector) returns (Empty);
  rpc InputText(Text) returns (Empty);
  rpc Swipe(SwipeRequest) returns (Empty);
  rpc PressKey(PressKeyRequest) returns (Empty);

  rpc Screenshot(Empty) returns (Image);
  rpc Hierarchy(Empty) returns (HierarchyJSON);
  rpc RecentLogs(RecentLogsRequest) returns (LogEntries);

  rpc WaitForIdle(Duration) returns (Empty);
  rpc Health(Empty) returns (HealthStatus);
  rpc Metrics(MetricsRequest) returns (MetricsResponse);
}

message Empty {}

message LaunchRequest {
  string bundle_id = 1;
  bool clear_state = 2;
  map<string, string> env = 3;
}

message Point {
  int32 x = 1;
  int32 y = 2;
}

message Text {
  string value = 1;
}

message Selector {
  string value = 1;
}

message Image {
  bytes png = 1;
  int32 width = 2;
  int32 height = 3;
}

message HierarchyJSON {
  string json = 1;
}

message Duration {
  int64 millis = 1;
}

message HealthStatus {
  bool ready = 1;
  string version = 2;
  string platform = 3;
}

message SwipeRequest {
  Point from = 1;
  Point to = 2;
  int64 duration_millis = 3;
}

message PressKeyRequest {
  // Logical key name. Supported: "back", "home", "enter", "tab", "up",
  // "down", "left", "right".
  string key = 1;
}

message RecentLogsRequest {
  // Lower bound as unix-epoch milliseconds; entries at or after this are
  // returned.
  int64 since_unix_millis = 1;
  // Minimum level: "E", "W", or "I". Empty defaults to "E".
  string level_at_least = 2;
}

message LogEntries {
  repeated LogEntry entries = 1;
}

message LogEntry {
  int64 unix_millis = 1;
  string level = 2;
  string tag = 3;
  string message = 4;
}

message MetricsRequest {
  string bundle_id = 1;
}

message MetricsResponse {
  double cpu_percent = 1;
  int64 heap_bytes = 2;
  int64 total_memory_bytes = 3;
}