makeInterface.ts

import type {LibzipEmscriptenModule} from './emscripten';

const number64 = [
  `number`, // low
  `number`, // high
] as const;

export type Libzip = ReturnType<typeof makeInterface>;

export enum Errors {
  ZIP_ER_OK = 0,
  ZIP_ER_MULTIDISK = 1,
  ZIP_ER_RENAME = 2,
  ZIP_ER_CLOSE = 3,
  ZIP_ER_SEEK = 4,
  ZIP_ER_READ = 5,
  ZIP_ER_WRITE = 6,
  ZIP_ER_CRC = 7,
  ZIP_ER_ZIPCLOSED = 8,
  ZIP_ER_NOENT = 9,
  ZIP_ER_EXISTS = 10,
  ZIP_ER_OPEN = 11,
  ZIP_ER_TMPOPEN = 12,
  ZIP_ER_ZLIB = 13,
  ZIP_ER_MEMORY = 14,
  ZIP_ER_CHANGED = 15,
  ZIP_ER_COMPNOTSUPP = 16,
  ZIP_ER_EOF = 17,
  ZIP_ER_INVAL = 18,
  ZIP_ER_NOZIP = 19,
  ZIP_ER_INTERNAL = 20,
  ZIP_ER_INCONS = 21,
  ZIP_ER_REMOVE = 22,
  ZIP_ER_DELETED = 23,
  ZIP_ER_ENCRNOTSUPP = 24,
  ZIP_ER_RDONLY = 25,
  ZIP_ER_NOPASSWD = 26,
  ZIP_ER_WRONGPASSWD = 27,
  ZIP_ER_OPNOTSUPP = 28,
  ZIP_ER_INUSE = 29,
  ZIP_ER_TELL = 30,
  ZIP_ER_COMPRESSED_DATA = 31,
}

export const makeInterface = (emZip: LibzipEmscriptenModule) => ({
  // Those are getters because they can change after memory growth
  get HEAPU8() {
    return emZip.HEAPU8;
  },

  errors: Errors,

  SEEK_SET: 0,
  SEEK_CUR: 1,
  SEEK_END: 2,

  ZIP_CHECKCONS: 4,
  ZIP_EXCL: 2,
  ZIP_RDONLY: 16,

  ZIP_FL_OVERWRITE: 8192,
  ZIP_FL_COMPRESSED: 4,

  ZIP_OPSYS_DOS: 0x00,
  ZIP_OPSYS_AMIGA: 0x01,
  ZIP_OPSYS_OPENVMS: 0x02,
  ZIP_OPSYS_UNIX: 0x03,
  ZIP_OPSYS_VM_CMS: 0x04,
  ZIP_OPSYS_ATARI_ST: 0x05,
  ZIP_OPSYS_OS_2: 0x06,
  ZIP_OPSYS_MACINTOSH: 0x07,
  ZIP_OPSYS_Z_SYSTEM: 0x08,
  ZIP_OPSYS_CPM: 0x09,
  ZIP_OPSYS_WINDOWS_NTFS: 0x0a,
  ZIP_OPSYS_MVS: 0x0b,
  ZIP_OPSYS_VSE: 0x0c,
  ZIP_OPSYS_ACORN_RISC: 0x0d,
  ZIP_OPSYS_VFAT: 0x0e,
  ZIP_OPSYS_ALTERNATE_MVS: 0x0f,
  ZIP_OPSYS_BEOS: 0x10,
  ZIP_OPSYS_TANDEM: 0x11,
  ZIP_OPSYS_OS_400: 0x12,
  ZIP_OPSYS_OS_X: 0x13,

  ZIP_CM_DEFAULT: -1,
  ZIP_CM_STORE: 0,
  ZIP_CM_DEFLATE: 8,

  uint08S: emZip._malloc(1),
  uint32S: emZip._malloc(4),

  malloc: emZip._malloc,
  free: emZip._free,

  getValue: emZip.getValue,

  openFromSource: emZip.cwrap(`zip_open_from_source`, `number`, [`number`, `number`, `number`]),
  close: emZip.cwrap(`zip_close`, `number`, [`number`]),
  discard: emZip.cwrap(`zip_discard`, null, [`number`]),

  getError: emZip.cwrap(`zip_get_error`, `number`, [`number`]),
  getName: emZip.cwrap(`zip_get_name`, `string`, [`number`, `number`, `number`]),
  getNumEntries: emZip.cwrap(`zip_get_num_entries`, `number`, [`number`, `number`]),

  delete: emZip.cwrap(`zip_delete`, `number`, [`number`, `number`]),

  statIndex: emZip.cwrap(`zip_stat_index`, `number`, [`number`, ...number64, `number`, `number`]),

  fopenIndex: emZip.cwrap(`zip_fopen_index`, `number`, [`number`, ...number64, `number`]),

  fread: emZip.cwrap(`zip_fread`, `number`, [`number`, `number`, `number`, `number`]),
  fclose: emZip.cwrap(`zip_fclose`, `number`, [`number`]),

  dir: {
    add: emZip.cwrap(`zip_dir_add`, `number`, [`number`, `string`]),
  },

  file: {
    add: emZip.cwrap(`zip_file_add`, `number`, [`number`, `string`, `number`, `number`]),
    getError: emZip.cwrap(`zip_file_get_error`, `number`, [`number`]),
    getExternalAttributes: emZip.cwrap(`zip_file_get_external_attributes`, `number`, [`number`, ...number64, `number`, `number`, `number`]),
    setExternalAttributes: emZip.cwrap(`zip_file_set_external_attributes`, `number`, [`number`, ...number64, `number`, `number`, `number`]),
    setMtime: emZip.cwrap(`zip_file_set_mtime`, `number`, [`number`, ...number64, `number`, `number`]),
    setCompression: emZip.cwrap(`zip_set_file_compression`, `number`, [`number`, ...number64, `number`, `number`]),
  },

  ext: {
    countSymlinks: emZip.cwrap(`zip_ext_count_symlinks`, `number`, [`number`]),
  },

  error: {
    initWithCode: emZip.cwrap(`zip_error_init_with_code`, null, [`number`, `number`]),
    strerror: emZip.cwrap(`zip_error_strerror`, `string`, [`number`]),
  },

  name: {
    locate: emZip.cwrap(`zip_name_locate`, `number`, [`number`, `string`, `number`]),
  },

  source: {
    fromUnattachedBuffer: emZip.cwrap(`zip_source_buffer_create`, `number`, [`number`, ...number64, `number`, `number`]),
    fromBuffer: emZip.cwrap(`zip_source_buffer`, `number`, [`number`, `number`, ...number64, `number`]),
    free: emZip.cwrap(`zip_source_free`, null, [`number`]),
    keep: emZip.cwrap(`zip_source_keep`, null, [`number`]),
    open: emZip.cwrap(`zip_source_open`, `number`, [`number`]),
    close: emZip.cwrap(`zip_source_close`, `number`, [`number`]),
    seek: emZip.cwrap(`zip_source_seek`, `number`, [`number`, ...number64, `number`]),
    tell: emZip.cwrap(`zip_source_tell`, `number`, [`number`]),
    read: emZip.cwrap(`zip_source_read`, `number`, [`number`, `number`, `number`]),
    error: emZip.cwrap(`zip_source_error`, `number`, [`number`]),
  },

  struct: {
    statS: emZip.cwrap(`zipstruct_statS`, `number`, []),
    statSize: emZip.cwrap(`zipstruct_stat_size`, `number`, [`number`]),
    statCompSize: emZip.cwrap(`zipstruct_stat_comp_size`, `number`, [`number`]),
    statCompMethod: emZip.cwrap(`zipstruct_stat_comp_method`, `number`, [`number`]),
    statMtime: emZip.cwrap(`zipstruct_stat_mtime`, `number`, [`number`]),
    statCrc: emZip.cwrap(`zipstruct_stat_crc`, `number`, [`number`]),

    errorS: emZip.cwrap(`zipstruct_errorS`, `number`, []),
    errorCodeZip: emZip.cwrap(`zipstruct_error_code_zip`, `number`, [`number`]),
  },
} as const);