const { getApiBaseUrl } = require('./constants')

function isLocalDevUrl(url) {
  return /^https?:\/\/(127\.0\.0\.1|localhost|0\.0\.0\.0)(:\d+)?\//i.test(url)
}

function upgradeToHttpsIfNeeded(url) {
  if (/^http:\/\//i.test(url) && !isLocalDevUrl(url)) {
    return url.replace(/^http:\/\//i, 'https://')
  }
  return url
}

function resolveImageUrl(url) {
  if (!url) {
    return ''
  }
  if (/^https?:\/\//i.test(url)) {
    return upgradeToHttpsIfNeeded(url)
  }

  const baseUrl = getApiBaseUrl().replace(/\/api\/v1\/?$/, '')
  const resolved = url.startsWith('/') ? `${baseUrl}${url}` : `${baseUrl}/${url}`
  return upgradeToHttpsIfNeeded(resolved)
}

function resolveImageList(urls) {
  if (!Array.isArray(urls)) {
    return []
  }
  return urls.map((item) => resolveImageUrl(item)).filter(Boolean)
}

module.exports = {
  resolveImageUrl,
  resolveImageList,
  upgradeToHttpsIfNeeded,
  isLocalDevUrl
}