syntax = "proto3";

package github.semantic;

option ruby_package = "Semantic::Proto";

message PingRequest {
  string service = 1;
}

message PingResponse {
  string status = 1;
  string hostname = 2;
  string timestamp = 3;
  string sha = 4;
}

message ParseTreeRequest {
  repeated Blob blobs = 1;
}

message ParseTreeSymbolResponse {
  repeated File files = 1;
}

message StackGraphRequest {
  repeated Blob blobs = 1;
}

message StackGraphResponse {
  repeated StackGraphFile files = 1;
}

message ParseError {
  string error = 1;
}

message Blob {
  string content = 1;
  string path = 2;
  string language = 3;
}

message File {
  string path = 1;
  string language = 2;
  repeated Symbol symbols = 3;
  repeated ParseError errors = 4;
  string blob_oid = 5;
}

message Symbol {
  string symbol = 1;
  string kind = 2;
  string line = 3;
  Span span = 4;
  Docstring docs = 5;
  NodeType node_type = 6;
  SyntaxType syntax_type = 7;
  Span utf16_code_unit_span = 8;
  ByteRange byte_range = 9;
}

message Docstring {
  string docstring = 1;
}

message Position {
  int32 line = 1;
  int32 column = 2;
}

message Span {
  Position start = 1;
  Position end = 2;
}

message ByteRange {
  int32 start = 1;
  int32 end = 2;
}

message StackGraphFile {
  string path = 1;
  string language = 2;
  repeated StackGraphNode nodes = 3;
  repeated StackGraphPath paths = 4;
  repeated ParseError errors = 5;
}

enum NodeType {
  ROOT_SCOPE = 0;
  JUMP_TO_SCOPE = 1;
  EXPORTED_SCOPE = 2;
  DEFINITION = 3;
  REFERENCE = 4;
}

enum SyntaxType {
  FUNCTION = 0;
  METHOD = 1;
  CLASS = 2;
  MODULE = 3;
  CALL = 4;
  TYPE = 5;
  INTERFACE = 6;
  IMPLEMENTATION = 7;
}

message StackGraphNode {
  int64 id = 1;
  string name = 2;
  string line = 3;
  Span span = 4;
  SyntaxType syntax_type = 5;
  NodeType node_type = 6;
}

message StackGraphPath {
  repeated string starting_symbol_stack = 1;
  int64 starting_scope_stack_size = 2;
  int64 from = 3;
  string edges = 4;
  int64 to = 5;
  repeated int64 ending_scope_stack = 6;
  repeated string ending_symbol_stack = 7;
}