// What the server sends the view.

import type { FileDiff } from "./patch.ts";

export type { FileDiff, Hunk } from "./patch.ts";

/** An id as jj shows it: the shortest unique prefix, then a few more characters. */
export type Id = { full: string; prefix: string; rest: string };

/** A commit, or jj's change, in the log. */
export type Revision = {
  /** What the view's route names it by: jj's change id or git's commit hash, or `""` for the working copy. */
  route: string;
  /** jj's change id. */
  change: Id | null;
  /** `null` for git's working tree, which is not one yet. */
  commit: Id | null;
  description: string;
  author: { name: string; email: string; timestamp: string } | null;
  /** Bookmarks, branches and tags at it. */
  refs: string[];
  workingCopy: boolean;
  empty: boolean;
  immutable: boolean;
  conflict: boolean;
};

/** A file's change as it is sent: left out, but for its key, when the view has it already. */
export type Sent = { key: string; diff: FileDiff | null };

/** A repository's recent history, and one revision's changes. */
export type Shown = {
  vcs: "jj" | "git";
  root: string;
  /** From the working copy back. */
  log: Revision[];
  revision: Revision;
  files: FileDiff[];
  /** Untracked files in git's working tree past those shown. */
  omitted: number;
};

/** What the view is sent: what it shows, but each file's change only if it did not have that already. */
export type Reply = Omit<Shown, "files"> & { files: Sent[] };