import { FormData, file_default } from './chunk-MOQBTK7U.mjs';

var s=0,S={START_BOUNDARY:s++,HEADER_FIELD_START:s++,HEADER_FIELD:s++,HEADER_VALUE_START:s++,HEADER_VALUE:s++,HEADER_VALUE_ALMOST_DONE:s++,HEADERS_ALMOST_DONE:s++,PART_DATA_START:s++,PART_DATA:s++,END:s++},f=1,F={PART_BOUNDARY:f,LAST_BOUNDARY:f*=2},LF=10,CR=13,SPACE=32,HYPHEN=45,COLON=58,A=97,Z=122,lower=c=>c|32,noop=()=>{},MultipartParser=class{constructor(boundary){this.index=0,this.flags=0,this.onHeaderEnd=noop,this.onHeaderField=noop,this.onHeadersEnd=noop,this.onHeaderValue=noop,this.onPartBegin=noop,this.onPartData=noop,this.onPartEnd=noop,this.boundaryChars={},boundary=`\r
--`+boundary;let ui8a=new Uint8Array(boundary.length);for(let i=0;i<boundary.length;i++)ui8a[i]=boundary.charCodeAt(i),this.boundaryChars[ui8a[i]]=!0;this.boundary=ui8a,this.lookbehind=new Uint8Array(this.boundary.length+8),this.state=S.START_BOUNDARY;}write(data){let i=0,length_=data.length,previousIndex=this.index,{lookbehind,boundary,boundaryChars,index,state,flags}=this,boundaryLength=this.boundary.length,boundaryEnd=boundaryLength-1,bufferLength=data.length,c,cl,mark=name=>{this[name+"Mark"]=i;},clear=name=>{delete this[name+"Mark"];},callback=(callbackSymbol,start,end,ui8a)=>{(start===void 0||start!==end)&&this[callbackSymbol](ui8a&&ui8a.subarray(start,end));},dataCallback=(name,clear2)=>{let markSymbol=name+"Mark";markSymbol in this&&(clear2?(callback(name,this[markSymbol],i,data),delete this[markSymbol]):(callback(name,this[markSymbol],data.length,data),this[markSymbol]=0));};for(i=0;i<length_;i++)switch(c=data[i],state){case S.START_BOUNDARY:if(index===boundary.length-2){if(c===HYPHEN)flags|=F.LAST_BOUNDARY;else if(c!==CR)return;index++;break}else if(index-1===boundary.length-2){if(flags&F.LAST_BOUNDARY&&c===HYPHEN)state=S.END,flags=0;else if(!(flags&F.LAST_BOUNDARY)&&c===LF)index=0,callback("onPartBegin"),state=S.HEADER_FIELD_START;else return;break}c!==boundary[index+2]&&(index=-2),c===boundary[index+2]&&index++;break;case S.HEADER_FIELD_START:state=S.HEADER_FIELD,mark("onHeaderField"),index=0;case S.HEADER_FIELD:if(c===CR){clear("onHeaderField"),state=S.HEADERS_ALMOST_DONE;break}if(index++,c===HYPHEN)break;if(c===COLON){if(index===1)return;dataCallback("onHeaderField",!0),state=S.HEADER_VALUE_START;break}if(cl=lower(c),cl<A||cl>Z)return;break;case S.HEADER_VALUE_START:if(c===SPACE)break;mark("onHeaderValue"),state=S.HEADER_VALUE;case S.HEADER_VALUE:c===CR&&(dataCallback("onHeaderValue",!0),callback("onHeaderEnd"),state=S.HEADER_VALUE_ALMOST_DONE);break;case S.HEADER_VALUE_ALMOST_DONE:if(c!==LF)return;state=S.HEADER_FIELD_START;break;case S.HEADERS_ALMOST_DONE:if(c!==LF)return;callback("onHeadersEnd"),state=S.PART_DATA_START;break;case S.PART_DATA_START:state=S.PART_DATA,mark("onPartData");case S.PART_DATA:if(previousIndex=index,index===0){for(i+=boundaryEnd;i<bufferLength&&!(data[i]in boundaryChars);)i+=boundaryLength;i-=boundaryEnd,c=data[i];}if(index<boundary.length)boundary[index]===c?(index===0&&dataCallback("onPartData",!0),index++):index=0;else if(index===boundary.length)index++,c===CR?flags|=F.PART_BOUNDARY:c===HYPHEN?flags|=F.LAST_BOUNDARY:index=0;else if(index-1===boundary.length)if(flags&F.PART_BOUNDARY){if(index=0,c===LF){flags&=~F.PART_BOUNDARY,callback("onPartEnd"),callback("onPartBegin"),state=S.HEADER_FIELD_START;break}}else flags&F.LAST_BOUNDARY&&c===HYPHEN?(callback("onPartEnd"),state=S.END,flags=0):index=0;if(index>0)lookbehind[index-1]=c;else if(previousIndex>0){let _lookbehind=new Uint8Array(lookbehind.buffer,lookbehind.byteOffset,lookbehind.byteLength);callback("onPartData",0,previousIndex,_lookbehind),previousIndex=0,mark("onPartData"),i--;}break;case S.END:break;default:throw new Error(`Unexpected state entered: ${state}`)}dataCallback("onHeaderField"),dataCallback("onHeaderValue"),dataCallback("onPartData"),this.index=index,this.state=state,this.flags=flags;}end(){if(this.state===S.HEADER_FIELD_START&&this.index===0||this.state===S.PART_DATA&&this.index===this.boundary.length)this.onPartEnd();else if(this.state!==S.END)throw new Error("MultipartParser.end(): stream ended unexpectedly")}};function _fileName(headerValue){let m=headerValue.match(/\bfilename=("(.*?)"|([^()<>@,;:\\"/[\]?={}\s\t]+))($|;\s)/i);if(!m)return;let match=m[2]||m[3]||"",filename=match.slice(match.lastIndexOf("\\")+1);return filename=filename.replace(/%22/g,'"'),filename=filename.replace(/&#(\d{4});/g,(m2,code)=>String.fromCharCode(code)),filename}async function toFormData(Body,ct){if(!/multipart/i.test(ct))throw new TypeError("Failed to fetch");let m=ct.match(/boundary=(?:"([^"]+)"|([^;]+))/i);if(!m)throw new TypeError("no or bad content-type header, no multipart boundary");let parser=new MultipartParser(m[1]||m[2]),headerField,headerValue,entryValue,entryName,contentType,filename,entryChunks=[],formData=new FormData,onPartData=ui8a=>{entryValue+=decoder.decode(ui8a,{stream:!0});},appendToFile=ui8a=>{entryChunks.push(ui8a);},appendFileToFormData=()=>{let file=new file_default(entryChunks,filename,{type:contentType});formData.append(entryName,file);},appendEntryToFormData=()=>{formData.append(entryName,entryValue);},decoder=new TextDecoder("utf-8");decoder.decode(),parser.onPartBegin=function(){parser.onPartData=onPartData,parser.onPartEnd=appendEntryToFormData,headerField="",headerValue="",entryValue="",entryName="",contentType="",filename=null,entryChunks.length=0;},parser.onHeaderField=function(ui8a){headerField+=decoder.decode(ui8a,{stream:!0});},parser.onHeaderValue=function(ui8a){headerValue+=decoder.decode(ui8a,{stream:!0});},parser.onHeaderEnd=function(){if(headerValue+=decoder.decode(),headerField=headerField.toLowerCase(),headerField==="content-disposition"){let m2=headerValue.match(/\bname=("([^"]*)"|([^()<>@,;:\\"/[\]?={}\s\t]+))/i);m2&&(entryName=m2[2]||m2[3]||""),filename=_fileName(headerValue),filename&&(parser.onPartData=appendToFile,parser.onPartEnd=appendFileToFormData);}else headerField==="content-type"&&(contentType=headerValue);headerValue="",headerField="";};for await(let chunk of Body)parser.write(chunk);return parser.end(),formData}

export { toFormData };