| 1 | 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{\n\tArchive,\n\tArchiveDir,\n\tArchiveHdi,\n\tcreateArchiveByFileExtension\n} from '@shockpkg/archive-files';\nimport fse from 'fs-extra';\n\n/**\n * Projector constructor.\n *\n * @param path Output path.\n */\nexport abstract class Projector extends Object {\n\t/**\n\t * Path to hdiutil binary.\n\t */\n\tpublic hdiutil: string | null = null;\n\n\t/**\n\t * Output path.\n\t */\n\tpublic readonly path: string;\n\n\tconstructor(path: string) {\n\t\tsuper();\n\n\t\tthis.path = path;\n\t}\n\n\t/**\n\t * The movie appended marker.\n\t *\n\t * @returns Hex string.\n\t */\n\tpublic get movieAppendMarker() {\n\t\treturn '563412FA';\n\t}\n\n\t/**\n\t * Get the player file or directory as an Archive instance.\n\t *\n\t * @param path File path.\n\t * @returns Archive instance.\n\t */\n\tpublic async openAsArchive(path: string): Promise<Archive> {\n\t\tconst stat = await fse.stat(path);\n\t\tif (stat.isDirectory()) {\n\t\t\treturn new ArchiveDir(path);\n\t\t}\n\t\tif (!stat.isFile()) {\n\t\t\tthrow new Error(`Archive path not file or directory: ${path}`);\n\t\t}\n\n\t\tconst r = createArchiveByFileExtension(path);\n\t\tif (!r) {\n\t\t\tthrow new Error(`Archive file type unknown: ${path}`);\n\t\t}\n\n\t\tif (r instanceof ArchiveHdi) {\n\t\t\tconst {hdiutil} = this;\n\t\t\tif (hdiutil) {\n\t\t\t\tr.mounterMac.hdiutil = hdiutil;\n\t\t\t}\n\t\t\tr.nobrowse = true;\n\t\t}\n\t\treturn r;\n\t}\n\n\t/**\n\t * Write out projector with player and file.\n\t *\n\t * @param player Player path.\n\t * @param movieFile Movie file.\n\t */\n\tpublic async withFile(player: string, movieFile: string | null) {\n\t\tconst movieData = movieFile ? await fse.readFile(movieFile) : null;\n\t\tawait this.withData(player, movieData);\n\t}\n\n\t/**\n\t * Write out projector with player and data.\n\t *\n\t * @param player Player path.\n\t * @param movieData Movie data.\n\t */\n\tpublic async withData(player: string, movieData: Readonly<Buffer> | null) {\n\t\tawait this._checkOutput();\n\t\tawait this._writePlayer(player);\n\t\tawait this._modifyPlayer();\n\t\tawait this._writeMovie(movieData);\n\t}\n\n\t/**\n\t * Check that output path is valid, else throws.\n\t */\n\tprotected async _checkOutput() {\n\t\tif (await fse.pathExists(this.path)) {\n\t\t\tthrow new Error(`Output path already exists: ${this.path}`);\n\t\t}\n\t}\n\n\t/**\n\t * Append movie data to a file.\n\t * Format string characters:\n\t * - d: Movie data.\n\t * - m: Marker bytes.\n\t * - s: Size, 32LE.\n\t * - S: Size, 32BE.\n\t * - l: Size, 64LE.\n\t * - L: Size, 64BE.\n\t *\n\t * @param file File to append to.\n\t * @param data Movie data.\n\t * @param format Format string.\n\t */\n\tprotected async _appendMovieData(\n\t\tfile: string,\n\t\tdata: Readonly<Buffer>,\n\t\tformat: string\n\t) {\n\t\tconst buffers: Readonly<Buffer>[] = [];\n\t\tfor (const c of format) {\n\t\t\tswitch (c) {\n\t\t\t\tcase 'd': {\n\t\t\t\t\tbuffers.push(data);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tcase 'm': {\n\t\t\t\t\tbuffers.push(Buffer.from(this.movieAppendMarker, 'hex'));\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tcase 's': {\n\t\t\t\t\tconst b = Buffer.alloc(4);\n\t\t\t\t\tb.writeUInt32LE(data.length, 0);\n\t\t\t\t\tbuffers.push(b);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tcase 'S': {\n\t\t\t\t\tconst b = Buffer.alloc(4);\n\t\t\t\t\tb.writeUInt32BE(data.length, 0);\n\t\t\t\t\tbuffers.push(b);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tcase 'l': {\n\t\t\t\t\t// 64-bit, just write 32-bit, SWF cannot be larger.\n\t\t\t\t\tconst b = Buffer.alloc(8, 0);\n\t\t\t\t\tb.writeUInt32LE(data.length, 0);\n\t\t\t\t\tbuffers.push(b);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tcase 'L': {\n\t\t\t\t\t// 64-bit, just write 32-bit, SWF cannot be larger.\n\t\t\t\t\tconst b = Buffer.alloc(8, 0);\n\t\t\t\t\tb.writeUInt32BE(data.length, 4);\n\t\t\t\t\tbuffers.push(b);\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tdefault: {\n\t\t\t\t\tthrow new Error(`Unknown format string character: ${c}`);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tconst stat = await fse.stat(file);\n\t\tif (!stat.isFile()) {\n\t\t\tthrow new Error(`Path not a file: ${file}`);\n\t\t}\n\n\t\tconst fd = await fse.open(file, 'a');\n\t\ttry {\n\t\t\tfor (const b of buffers) {\n\t\t\t\t// eslint-disable-next-line no-await-in-loop\n\t\t\t\tawait fse.appendFile(fd, b);\n\t\t\t}\n\t\t}\n\t\tfinally {\n\t\t\tawait fse.close(fd);\n\t\t}\n\t}\n\n\t/**\n\t * Projector file extension.\n\t *\n\t * @returns File extension.\n\t */\n\tpublic abstract get extension(): string;\n\n\t/**\n\t * Write the projector player.\n\t *\n\t * @param player Player path.\n\t */\n\tprotected abstract _writePlayer(player: string): Promise<void>;\n\n\t/**\n\t * Modify the projector player.\n\t */\n\tprotected abstract _modifyPlayer(): Promise<void>;\n\n\t/**\n\t * Write out the projector movie file.\n\t *\n\t * @param movieData Movie data or null.\n\t */\n\tprotected abstract _writeMovie(\n\t\tmovieData: Readonly<Buffer> | null\n\t): Promise<void>;\n}\n"],"file":"projector.js","sourceRoot":"../src"} |