import {IFileValue, IParam, IParamDto} from "./param.js";

import {IResultErrorDto} from "./result";

export interface UploadResponseDto {

FileId: string

FileName: string,

FileExt: string

}

export class FileValue {

constructor(

public readonly name: string,

public readonly fileId: string

) {}

}

export default class FileParam implements IParam {

/**

* Single file conversion parameter class.

*

* @param name - parameter name.

* @param file - value.

* @param host - ConvertApi server domain.

*/

constructor(

public readonly name: string,

public readonly file: File | FileValue | URL,

public readonly host: string

) {}

public value(): Promise<string> {

if (this.file instanceof FileValue) {

return Promise.resolve(this.file.fileId)

} else {

let uploadUrl = `https://${this.host}/upload?`

let response = this.file instanceof URL

? fetch(`${uploadUrl}url=${encodeURIComponent(this.file.href)}`, <RequestInit>{ method: 'POST' })

: fetch(`${uploadUrl}filename=${encodeURIComponent(this.file.name)}`, <RequestInit>{ method: 'POST', body: this.file })

return response

.then(r => r.ok ? r.json() : Promise.reject(<IResultErrorDto>{Code: 5007, Message: `Unable to upload the file`}))

.then(obj => obj.FileId)

}

}

public get dto(): Promise<IParamDto> {

return this.value().then( v => <IParamDto>{

Name: this.name,

FileValue: <IFileValue>{ Id: v }

})

}

}