syntax = "proto3";

package gitks;

import "oid.proto";
import "repository.proto";

message DiffOptions {
  enum WhitespaceMode {
    DIFF_WHITESPACE_MODE_UNSPECIFIED = 0;
    DIFF_WHITESPACE_MODE_DEFAULT = 1;
    DIFF_WHITESPACE_MODE_IGNORE_ALL = 2;
    DIFF_WHITESPACE_MODE_IGNORE_CHANGE = 3;
    DIFF_WHITESPACE_MODE_IGNORE_EOL = 4;
  }

  bool recursive = 1;
  bool include_binary = 2;
  bool include_patch = 3;
  bool rename_detection = 4;
  bool copy_detection = 5;
  uint32 context_lines = 6;
  repeated string pathspec = 7;
  WhitespaceMode whitespace_mode = 8;
  uint64 max_files = 9;
  uint64 max_bytes = 10;
}

message DiffLine {
  enum LineType {
    DIFF_LINE_TYPE_UNSPECIFIED = 0;
    DIFF_LINE_TYPE_CONTEXT = 1;
    DIFF_LINE_TYPE_ADDED = 2;
    DIFF_LINE_TYPE_DELETED = 3;
    DIFF_LINE_TYPE_HUNK_HEADER = 4;
    DIFF_LINE_TYPE_NO_NEWLINE = 5;
  }

  LineType type = 1;
  int32 old_line = 2;
  int32 new_line = 3;
  bytes content = 4;
  bool truncated = 5;
}

message DiffHunk {
  string header = 1;
  uint32 old_start = 2;
  uint32 old_lines = 3;
  uint32 new_start = 4;
  uint32 new_lines = 5;
  repeated DiffLine lines = 6;
}

message DiffFile {
  enum ChangeType {
    DIFF_FILE_CHANGE_TYPE_UNSPECIFIED = 0;
    DIFF_FILE_CHANGE_TYPE_ADDED = 1;
    DIFF_FILE_CHANGE_TYPE_MODIFIED = 2;
    DIFF_FILE_CHANGE_TYPE_DELETED = 3;
    DIFF_FILE_CHANGE_TYPE_RENAMED = 4;
    DIFF_FILE_CHANGE_TYPE_COPIED = 5;
    DIFF_FILE_CHANGE_TYPE_TYPE_CHANGED = 6;
    DIFF_FILE_CHANGE_TYPE_UNMERGED = 7;
  }

  string old_path = 1;
  string new_path = 2;
  Oid old_oid = 3;
  Oid new_oid = 4;
  uint32 old_mode = 5;
  uint32 new_mode = 6;
  ChangeType change_type = 7;
  bool binary = 8;
  bool too_large = 9;
  uint32 additions = 10;
  uint32 deletions = 11;
  repeated DiffHunk hunks = 12;
  bytes patch = 13;
  double similarity = 14;
}

message DiffStats {
  uint32 additions = 1;
  uint32 deletions = 2;
  uint32 changed_files = 3;
}

message Diff {
  repeated DiffFile files = 1;
  DiffStats stats = 2;
  bool overflow = 3;
}

message GetDiffRequest {
  RepositoryHeader repository = 1;
  ObjectSelector base = 2;
  ObjectSelector head = 3;
  DiffOptions options = 4;
  Pagination pagination = 5;
}

message GetDiffResponse {
  repeated DiffFile files = 1;
  DiffStats stats = 2;
  PageInfo page_info = 3;
  bool overflow = 4;
}

message GetCommitDiffRequest {
  RepositoryHeader repository = 1;
  ObjectSelector commit = 2;
  DiffOptions options = 3;
  Pagination pagination = 4;
}

message GetPatchRequest {
  RepositoryHeader repository = 1;
  ObjectSelector base = 2;
  ObjectSelector head = 3;
  DiffOptions options = 4;
}

message GetPatchResponse {
  bytes data = 1;
}

message GetDiffStatsRequest {
  RepositoryHeader repository = 1;
  ObjectSelector base = 2;
  ObjectSelector head = 3;
  DiffOptions options = 4;
}

service DiffService {
  rpc GetDiff(GetDiffRequest) returns (GetDiffResponse);
  rpc GetCommitDiff(GetCommitDiffRequest) returns (GetDiffResponse);
  rpc GetPatch(GetPatchRequest) returns (stream GetPatchResponse);
  rpc GetDiffStats(GetDiffStatsRequest) returns (DiffStats);
}