syntax = "proto3";

package exa.diff_action_pb;

import "exa/codeium_common_pb/codeium_common.proto";

enum UnifiedDiffLineType {
  UNIFIED_DIFF_LINE_TYPE_UNSPECIFIED = 0;
  UNIFIED_DIFF_LINE_TYPE_INSERT = 1;
  UNIFIED_DIFF_LINE_TYPE_DELETE = 2;
  UNIFIED_DIFF_LINE_TYPE_UNCHANGED = 3;
}

enum DiffChangeType {
  DIFF_CHANGE_TYPE_UNSPECIFIED = 0;
  DIFF_CHANGE_TYPE_INSERT = 1;
  DIFF_CHANGE_TYPE_DELETE = 2;
  DIFF_CHANGE_TYPE_UNCHANGED = 3;
}

enum DiffType {
  DIFF_TYPE_UNSPECIFIED = 0;
  DIFF_TYPE_UNIFIED = 1;
  DIFF_TYPE_CHARACTER = 2;
  DIFF_TYPE_COMBO = 3;

  reserved 4;
  reserved 5;
}

message UnifiedDiff {
  message UnifiedDiffLine {
    string text = 1;
    .exa.diff_action_pb.UnifiedDiffLineType type = 2;
  }

  repeated .exa.diff_action_pb.UnifiedDiff.UnifiedDiffLine lines = 3;
}

message DiffBlock {
  int32 start_line = 1;
  int32 end_line = 2;
  .exa.diff_action_pb.UnifiedDiff unified_diff = 3;
  .exa.codeium_common_pb.Language from_language = 4;
  .exa.codeium_common_pb.Language to_language = 5;
}

message CharacterDiffChange {
  string text = 1;
  .exa.diff_action_pb.DiffChangeType type = 2;
}

message CharacterDiff {
  repeated .exa.diff_action_pb.CharacterDiffChange changes = 1;
}

message ComboDiffLine {
  string text = 1;
  .exa.diff_action_pb.DiffChangeType type = 2;
  .exa.diff_action_pb.CharacterDiff character_diff = 3;
}

message ComboDiff {
  repeated .exa.diff_action_pb.ComboDiffLine lines = 1;
}

message DiffSet {
  .exa.diff_action_pb.UnifiedDiff unified_diff = 1;
  .exa.diff_action_pb.CharacterDiff character_diff = 2;
  .exa.diff_action_pb.ComboDiff combo_diff = 3;
}

message DiffList {
  repeated .exa.diff_action_pb.DiffBlock diffs = 2;
}