api.ts

function createURLBuilder(basepath: string, useTrailingSlash = true) {
  // Strip all trailing slashes from the basepath.
  // We handle slashes when building URLs.
  basepath = basepath.replace(/\/*$/, '')

  return function buildURL(...subPaths: string[] | [...string[], string | URLSearchParams]) {
    let params
    if (subPaths.at(-1) instanceof URLSearchParams) {
      params = subPaths.pop()
    }
    if (subPaths.some((path) => String(path).includes('/'))) {
      throw new Error('Subpaths must not contain slashes')
    }
    const subPath = subPaths.length > 0 ? '/' + subPaths.join('/') : ''
    const url = basepath + subPath + (useTrailingSlash ? '/' : '')
    return params ? url + `?${params}` : url
  }
}

export const createTankURL = createURLBuilder(import.meta.env.VUE_APP_API_TANK, false)
export const createSteeringURL = createURLBuilder(import.meta.env.VUE_APP_API_STEERING)