web/apps/scandic-web/services/dataCache/DistributedCache/generateCacheKey/getPrefix.ts

import { env } from "@/env/server"

import { getBranchPrefix } from "./getBranchPrefix"

export function getPrefix(): string {
  if (process.env.NODE_ENV === "development") {
    const devPrefix = process.env.USER || process.env.USERNAME || "dev"
    return `${devPrefix}`
  }

  const branch = env.BRANCH.trim()
  const gitSha = env.GIT_SHA?.trim().substring(0, 7)

  if (!branch && !gitSha) {
    throw new Error("Unable to getPrefix, BRANCH and GIT_SHA must be set")
  }

  if (!branch) {
    throw new Error("Unable to getPrefix, BRANCH must be set")
  }

  if (!gitSha) {
    throw new Error("Unable to getPrefix, GIT_SHA must be set")
  }

  const prefixTokens = [getBranchPrefix(branch), gitSha].filter(Boolean)

  return prefixTokens.join(":")
}