@oddjs/odd/src/fs/link.ts

ODD SDK

import * as DagPB from "@ipld/dag-pb"
import { CID } from "multiformats/cid"
import { PBLink } from "@ipld/dag-pb"

import { HardLink, SimpleLink } from "./types.js"
import { decodeCID, encodeCID } from "../common/cid.js"


type HasName = { name: string }


export const arrToMap = <T extends HasName>(arr: T[]): { [ name: string ]: T } => {
  return arr.reduce((acc, cur) => {
    acc[ cur.name ] = cur
    return acc
  }, {} as { [ name: string ]: T })
}

export const fromDAGLink = (link: PBLink): SimpleLink => {
  const name = link.Name || ""
  const cid = link.Hash
  const size = link.Tsize || 0
  return { name, cid, size }
}

export const make = (name: string, cid: CID, isFile: boolean, size: number): HardLink => {
  return {
    name,
    cid: encodeCID(cid),
    size,
    isFile
  }
}

export const toDAGLink = (link: SimpleLink): PBLink => {
  const { name, cid, size } = link
  return DagPB.createLink(name, size, decodeCID(cid))
}