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'use strict'
const { Blob, File } = require('node:buffer')
const { kState } = require('./symbols')
const { webidl } = require('./webidl')
// TODO(@KhafraDev): remove
class FileLike {
constructor (blobLike, fileName, options = {}) {
// TODO: argument idl type check
// The File constructor is invoked with two or three parameters, depending
// on whether the optional dictionary parameter is used. When the File()
// constructor is invoked, user agents must run the following steps:
// 1. Let bytes be the result of processing blob parts given fileBits and
// options.
// 2. Let n be the fileName argument to the constructor.
const n = fileName
// 3. Process FilePropertyBag dictionary argument by running the following
// substeps:
// 1. If the type member is provided and is not the empty string, let t
// be set to the type dictionary member. If t contains any characters
// outside the range U+0020 to U+007E, then set t to the empty string
// and return from these substeps.
// TODO
const t = options.type
// 2. Convert every character in t to ASCII lowercase.
// TODO
// 3. If the lastModified member is provided, let d be set to the
// lastModified dictionary member. If it is not provided, set d to the
// current date and time represented as the number of milliseconds since
// the Unix Epoch (which is the equivalent of Date.now() [ECMA-262]).
const d = options.lastModified ?? Date.now()
// 4. Return a new File object F such that:
// F refers to the bytes byte sequence.
// F.size is set to the number of total bytes in bytes.
// F.name is set to n.
// F.type is set to t.
// F.lastModified is set to d.
this[kState] = {
blobLike,
name: n,
type: t,
lastModified: d
}
}
stream (...args) {
webidl.brandCheck(this, FileLike)
return this[kState].blobLike.stream(...args)
}
arrayBuffer (...args) {
webidl.brandCheck(this, FileLike)
return this[kState].blobLike.arrayBuffer(...args)
}
slice (...args) {
webidl.brandCheck(this, FileLike)
return this[kState].blobLike.slice(...args)
}
text (...args) {
webidl.brandCheck(this, FileLike)
return this[kState].blobLike.text(...args)
}
get size () {
webidl.brandCheck(this, FileLike)
return this[kState].blobLike.size
}
get type () {
webidl.brandCheck(this, FileLike)
return this[kState].blobLike.type
}
get name () {
webidl.brandCheck(this, FileLike)
return this[kState].name
}
get lastModified () {
webidl.brandCheck(this, FileLike)
return this[kState].lastModified
}
get [Symbol.toStringTag] () {
return 'File'
}
}
webidl.converters.Blob = webidl.interfaceConverter(Blob)
// If this function is moved to ./util.js, some tools (such as
// rollup) will warn about circular dependencies. See:
// https://github.com/nodejs/undici/issues/1629
function isFileLike (object) {
return (
(object instanceof File) ||
(
object &&
(typeof object.stream === 'function' ||
typeof object.arrayBuffer === 'function') &&
object[Symbol.toStringTag] === 'File'
)
)
}
module.exports = { FileLike, isFileLike }
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