export type GitSource = {
  resolver: "git";
  repository: string;
  commit: string;
};

export type LockedResourceKind = "interface" | "package";

export type LockedResource = {
  kind: LockedResourceKind;
  binding: string;
  source: GitSource;
};

export type QuixosRepositoryLock = {
  formatVersion: 1;
  quixos: GitSource;
  resources: LockedResource[];
};

export type NixGitInput = {
  type: "git";
  url: string;
  ref: string;
  rev: string;
};

export const RETENTION_TAG_PREFIX = "refs/tags/quixos-reachability/";

export const retentionTagForCommit = (commit: string): string =>
  `${RETENTION_TAG_PREFIX}${commit.toLowerCase()}`;

export const nixGitInput = (source: GitSource): NixGitInput => ({
  type: "git",
  url: source.repository,
  ref: retentionTagForCommit(source.commit),
  rev: source.commit.toLowerCase(),
});