import type { StorageFile } from '@/interface/response/storage'

const API_URI = import.meta.env.VITE_API_URI_CONFIG

export async function getDocumentList(volume: string, id: string) {
  const res = await fetch(`${API_URI}/document/${volume}/${id}`, {
    headers: {
      Accept: 'application/json',
    },
  })

  if (res && res.ok) {
    return (await res.json()) as StorageFile
  }
  return false
}

export async function getDocumentInfo(
  volume: string,
  id: string,
  file: string
) {
  const res = await fetch(`${API_URI}/document/${volume}/${id}/${file}`, {
    headers: {
      Accept: 'application/json',
    },
  })

  if (res && res.ok) {
    return (await res.json()) as StorageFile & { downloadUrl: string }
  }
  return false
}

const util = {
  formatBytes: (bytes: number, decimals = 2) => {
    if (!+bytes) return '0 Bytes'

    const k = 1024
    const dm = decimals < 0 ? 0 : decimals
    const sizes = [
      'Bytes',
      'KiB',
      'MiB',
      'GiB',
      'TiB',
      'PiB',
      'EiB',
      'ZiB',
      'YiB',
    ]
    const i = Math.floor(Math.log(bytes) / Math.log(k))

    return `${parseFloat((bytes / Math.pow(k, i)).toFixed(dm))} ${sizes[i]}`
  },
  download: async (url: string, name?: string) => {
    await fetch(url, {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
      },
    })
      .then((res) => res.blob())
      .then((blob) => {
        const a = document.createElement('a')
        a.href = window.URL.createObjectURL(blob)
        a.download = name ?? 'download'
        a.click()
        a.remove()
      })
  },
}

const doc = {
  list: getDocumentList,
  info: getDocumentInfo,
  util,
}

export default doc