// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright vis.gl contributors
import { CD_HEADER_SIGNATURE, makeHashTableFromZipHeaders, parseHashTable, parseZipCDFileHeader, parseZipLocalFileHeader, searchFromTheEnd } from '@loaders.gl/zip';
import { Tiles3DArchive } from "./3d-tiles-archive-archive.js";
/**
 * Creates 3tz file handler from raw file
 * @param fileProvider raw file data
 * @param cb is called with information message during parsing
 * @returns 3tz file handler
 */
export const parse3DTilesArchive = async (fileProvider, cb) => {
    const hashCDOffset = await searchFromTheEnd(fileProvider, CD_HEADER_SIGNATURE);
    const cdFileHeader = await parseZipCDFileHeader(hashCDOffset, fileProvider);
    let hashTable;
    if (cdFileHeader?.fileName !== '@3dtilesIndex1@') {
        hashTable = await makeHashTableFromZipHeaders(fileProvider);
        cb?.('3tz doesnt contain hash file, hash info has been composed according to zip archive headers');
    }
    else {
        // cb?.('3tz contains hash file');
        const localFileHeader = await parseZipLocalFileHeader(cdFileHeader.localHeaderOffset, fileProvider);
        if (!localFileHeader) {
            throw new Error('corrupted 3tz zip archive');
        }
        const fileDataOffset = localFileHeader.fileDataOffset;
        const hashFile = await fileProvider.slice(fileDataOffset, fileDataOffset + localFileHeader.compressedSize);
        hashTable = parseHashTable(hashFile);
    }
    return new Tiles3DArchive(fileProvider, hashTable);
};