// Package workspace is the Workspace (agent sandbox / files) bounded
// context: the single shared ENKLY_WORKSPACE directory the coding agent
// reads, writes and runs commands in, and that the "Files" panel in the
// UI lets a human upload into / download from. Every path-jailing rule
// from internal/llm/sandbox.go (ResolvePath, the bash allowlist, the
// filesystem guards) is enforced here and nowhere else — no other
// service is allowed to touch the workspace volume directly.
//
// Mirrors internal/llm/tools.go (filesystem + bash tools) and
// internal/handlers/files.go / ui.go (upload, download, tree).
syntax = "proto3";

package enkly.workspace.v1;

option go_package = "enkly/gen/workspace/v1;workspacev1";

import "google/protobuf/timestamp.proto";

service WorkspaceService {
  // --- agent filesystem/bash tools (internal/llm/tools.go, sandbox.go) ---
  rpc ReadFile(ReadFileRequest) returns (ReadFileResponse);
  rpc WriteFile(WriteFileRequest) returns (WriteFileResponse);
  rpc EditFile(EditFileRequest) returns (EditFileResponse);
  rpc MultiEditFile(MultiEditFileRequest) returns (MultiEditFileResponse);
  rpc ListDirectory(ListDirectoryRequest) returns (ListDirectoryResponse);
  rpc GlobSearch(GlobSearchRequest) returns (GlobSearchResponse);
  rpc Grep(GrepRequest) returns (GrepResponse);
  rpc RunBashCommand(RunBashCommandRequest) returns (RunBashCommandResponse);

  // --- human-facing files panel (internal/handlers/files.go, ui.go) ---
  rpc UploadFile(UploadFileRequest) returns (UploadFileResponse);
  rpc DownloadFile(DownloadFileRequest) returns (DownloadFileResponse);
  rpc Tree(TreeRequest) returns (TreeResponse);
  rpc StatFile(StatFileRequest) returns (StatFileResponse); // backs deliverable cards
}

message ReadFileRequest {
  string path = 1;
  int32 offset = 2; // 0-based line offset
  int32 limit = 3;  // 0 = default (maxReadLines)
}

message ReadFileResponse {
  string content = 1;
  bool truncated = 2;
  bool is_error = 3;
  string error_message = 4;
}

message WriteFileRequest {
  string path = 1;
  string content = 2;
}

message WriteFileResponse {
  int64 bytes_written = 1;
  bool is_error = 2;
  string error_message = 3;
}

message EditFileRequest {
  string path = 1;
  string old_string = 2;
  string new_string = 3;
  bool replace_all = 4;
}

message EditFileResponse {
  string diff_preview = 1;
  int32 occurrences = 2;
  bool is_error = 3;
  string error_message = 4;
}

message TextEdit {
  string old_string = 1;
  string new_string = 2;
  bool replace_all = 3;
}

message MultiEditFileRequest {
  string path = 1;
  repeated TextEdit edits = 2;
}

message MultiEditFileResponse {
  string diff_preview = 1;
  bool is_error = 2;
  string error_message = 3;
}

message ListDirectoryRequest {
  string path = 1;
}

message ListDirectoryResponse {
  string listing = 1; // pre-rendered, matching the monolith's tool output format
  bool is_error = 2;
  string error_message = 3;
}

message GlobSearchRequest {
  string pattern = 1;
  string path = 2;
}

message GlobSearchResponse {
  // Pre-rendered exactly like every other tool's text output (a
  // newline-separated path list, "no files matched that pattern", or a
  // truncation notice) — deliberately NOT a repeated string, since that
  // would require guessing which lines are paths vs. a status message,
  // a lossy transformation the original tool output never needed.
  string output = 1;
  bool is_error = 2;
  string error_message = 3;
}

message GrepRequest {
  string pattern = 1;
  string path = 2;
  string glob = 3;
  bool case_insensitive = 4;
}

message GrepResponse {
  string output = 1;
  bool is_error = 2;
  string error_message = 3;
}

message RunBashCommandRequest {
  string command = 1;
  int32 timeout_seconds = 2; // 0 = service default
}

message RunBashCommandResponse {
  string output = 1;
  int32 exit_code = 2;
  bool is_error = 3;
  string error_message = 4;
}

message UploadFileRequest {
  string path = 1;     // destination relative path
  bytes content = 2;
}

message UploadFileResponse {
  int64 bytes_written = 1;
}

message DownloadFileRequest {
  string path = 1;
}

message DownloadFileResponse {
  bytes content = 1;
  string filename = 2;
}

message TreeRequest {
  string path = 1; // "" = workspace root
  // one_level: list only the immediate children of path (both files
  // and directories, directories included as entries in their own
  // right) instead of recursing — backs the gateway's lazy-expanding
  // file explorer panel (internal/handlers/ui.go's FileTree), where
  // each folder click fetches just that folder. false (the default)
  // recurses fully and returns only files, for the flat "Workspace
  // files" upload/download panel (internal/handlers/files.go).
  bool one_level = 2;
}

message TreeNode {
  string name = 1;
  string rel_path = 2;
  bool is_dir = 3;
  int64 size = 4;
  google.protobuf.Timestamp modified_at = 5;
  // download_url is left empty by this service — the gateway owns URL
  // construction (it knows its own public route prefix), not workspace.
}

message TreeResponse {
  repeated TreeNode nodes = 1;
}

message StatFileRequest {
  string path = 1;
}

message StatFileResponse {
  bool exists = 1;
  bool is_dir = 2;
  int64 size = 3;
  google.protobuf.Timestamp modified_at = 4;
}