syntax = "proto3";

import "pkg/gen/haskell/haskell.proto";

package github.semantic;

option (haskell.haskell_package) = "Semantic.Proto";
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 ParseTreeGraphResponse {
  repeated ParseTreeFileGraph files = 1;
}

message ParseTreeFileGraph {
  string path = 1;
  string language = 2;
  repeated TermVertex vertices = 3;
  repeated TermEdge edges = 4;
  repeated ParseError errors = 5;
}

message TermEdge {
  int32 source = 1;
  int32 target = 2;
}

message TermVertex {
  int32 vertex_id = 1;
  string term = 2;
  Span span = 3;
}

message ParseError {
  string error = 1;
}

message DiffTreeRequest {
  repeated BlobPair blobs = 1;
}

message DiffTreeTOCResponse {
  repeated TOCSummaryFile files = 1;
}

message TOCSummaryFile {
  string path = 1;
  string language = 2;
  repeated TOCSummaryChange changes = 3;
  repeated TOCSummaryError errors = 4;
}

message TOCSummaryChange {
  string category = 1;
  string term = 2;
  Span span = 3;
  ChangeType change_type = 4;
}

message TOCSummaryError {
  string error = 1;
  Span span = 2;
}

enum ChangeType {
  NONE = 0;
  ADDED = 1;
  REMOVED = 2;
  MODIFIED = 3;
}

message DiffTreeGraphResponse {
  repeated DiffTreeFileGraph files = 1;
}

message DiffTreeFileGraph {
  string path = 1;
  string language = 2;
  repeated DiffTreeVertex vertices = 3;
  repeated DiffTreeEdge edges = 4;
  repeated ParseError errors = 5;
}

message DiffTreeEdge {
  int32 source = 1;
  int32 target = 2;
}

message DiffTreeVertex {
  int32 diff_vertex_id = 1;
  oneof diff_term {
    DeletedTerm deleted = 2;
    InsertedTerm inserted = 3;
    ReplacedTerm replaced = 4;
    MergedTerm merged = 5;
  }
}

message DeletedTerm {
  string term = 1;
  Span span = 2;
}

message InsertedTerm {
  string term = 1;
  Span span = 2;
}

message ReplacedTerm {
  string before_term = 1;
  Span before_span = 2;
  string after_term = 3;
  Span after_span = 4;
}

message MergedTerm {
  string term = 1;
  Span before_span = 2;
  Span after_span = 3;
}

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

message BlobPair {
  Blob before = 1;
  Blob after = 2;
}

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;
}

message Docstring {
  string docstring = 1;
}

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

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