export interface Commit {
  hash: string;
  short: string;
  parents: string[];
  author: string;
  time: number;
  subject: string;
}

export interface Ref {
  /** Full name, e.g. `refs/heads/main`. */
  name: string;
  target: string;
}

export interface RepoData {
  root: string;
  commits: Commit[];
  refs: Ref[];
  head_ref: string | null;
  head: string | null;
}

export type RefKind = "local" | "remote" | "tag";

export interface FilterRule {
  pattern: string;
  /** `hide` hides matching refs; `only` shows only refs that match some `only` rule. */
  mode: "hide" | "only";
}

export interface FilterState {
  /** Full ref names hidden with the eye toggle. */
  hidden: string[];
  rules: FilterRule[];
}

/** A commit as shown on screen, with its parent edges after collapsing. */
export interface DisplayRow {
  commit: Commit;
  parents: { hash: string; dotted: boolean }[];
  /** Set on the first row of a collapsed run: how many commits are hidden below it. */
  hiddenCount?: number;
}

export interface Segment {
  /** Column numbers; y is 0 (row top), 0.5 (row middle) or 1 (row bottom). */
  x1: number;
  y1: number;
  x2: number;
  y2: number;
  color: number;
  dotted: boolean;
}

export interface LaidOutRow {
  col: number;
  color: number;
  segments: Segment[];
}

export interface ChangedFile {
  /** One letter: A added, M modified, D deleted, R renamed, C copied, T type changed. */
  status: string;
  path: string;
  old_path: string | null;
  /** Line counts; null for binary files. */
  added: number | null;
  deleted: number | null;
}

export interface CommitDetails {
  hash: string;
  author: string;
  author_email: string;
  author_time: number;
  committer: string;
  committer_email: string;
  commit_time: number;
  parents: string[];
  message: string;
  files: ChangedFile[];
}