/* @ts-self-types="./wzp_wasm.d.ts" */

/**
 * Symmetric encryption session using ChaCha20-Poly1305.
 *
 * Mirrors `wzp-crypto::session::ChaChaSession` for WASM.  Nonce derivation
 * and key setup are identical so WASM and native peers interoperate.
 */
export class WzpCryptoSession {
    __destroy_into_raw() {
        const ptr = this.__wbg_ptr;
        this.__wbg_ptr = 0;
        WzpCryptoSessionFinalization.unregister(this);
        return ptr;
    }
    free() {
        const ptr = this.__destroy_into_raw();
        wasm.__wbg_wzpcryptosession_free(ptr, 0);
    }
    /**
     * Decrypt a media payload with AAD.
     *
     * Returns plaintext on success, or throws on auth failure.
     * @param {Uint8Array} header_aad
     * @param {Uint8Array} ciphertext
     * @returns {Uint8Array}
     */
    decrypt(header_aad, ciphertext) {
        const ptr0 = passArray8ToWasm0(header_aad, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        const ptr1 = passArray8ToWasm0(ciphertext, wasm.__wbindgen_malloc);
        const len1 = WASM_VECTOR_LEN;
        const ret = wasm.wzpcryptosession_decrypt(this.__wbg_ptr, ptr0, len0, ptr1, len1);
        if (ret[3]) {
            throw takeFromExternrefTable0(ret[2]);
        }
        var v3 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
        wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        return v3;
    }
    /**
     * Encrypt a media payload with AAD (typically the 12-byte MediaHeader).
     *
     * Returns `ciphertext || poly1305_tag` (plaintext.len() + 16 bytes).
     * @param {Uint8Array} header_aad
     * @param {Uint8Array} plaintext
     * @returns {Uint8Array}
     */
    encrypt(header_aad, plaintext) {
        const ptr0 = passArray8ToWasm0(header_aad, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        const ptr1 = passArray8ToWasm0(plaintext, wasm.__wbindgen_malloc);
        const len1 = WASM_VECTOR_LEN;
        const ret = wasm.wzpcryptosession_encrypt(this.__wbg_ptr, ptr0, len0, ptr1, len1);
        if (ret[3]) {
            throw takeFromExternrefTable0(ret[2]);
        }
        var v3 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
        wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        return v3;
    }
    /**
     * Create from a 32-byte shared secret (output of `WzpKeyExchange.derive_shared_secret`).
     * @param {Uint8Array} shared_secret
     */
    constructor(shared_secret) {
        const ptr0 = passArray8ToWasm0(shared_secret, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        const ret = wasm.wzpcryptosession_new(ptr0, len0);
        if (ret[2]) {
            throw takeFromExternrefTable0(ret[1]);
        }
        this.__wbg_ptr = ret[0] >>> 0;
        WzpCryptoSessionFinalization.register(this, this.__wbg_ptr, this);
        return this;
    }
    /**
     * Current receive sequence number (for diagnostics / UI stats).
     * @returns {number}
     */
    recv_seq() {
        const ret = wasm.wzpcryptosession_recv_seq(this.__wbg_ptr);
        return ret >>> 0;
    }
    /**
     * Current send sequence number (for diagnostics / UI stats).
     * @returns {number}
     */
    send_seq() {
        const ret = wasm.wzpcryptosession_send_seq(this.__wbg_ptr);
        return ret >>> 0;
    }
}
if (Symbol.dispose) WzpCryptoSession.prototype[Symbol.dispose] = WzpCryptoSession.prototype.free;

export class WzpFecDecoder {
    __destroy_into_raw() {
        const ptr = this.__wbg_ptr;
        this.__wbg_ptr = 0;
        WzpFecDecoderFinalization.unregister(this);
        return ptr;
    }
    free() {
        const ptr = this.__destroy_into_raw();
        wasm.__wbg_wzpfecdecoder_free(ptr, 0);
    }
    /**
     * Feed a received symbol.
     *
     * Returns the decoded block (concatenated original frames, unpadded) if
     * enough symbols have been received to recover the block, or `undefined`.
     * @param {number} block_id
     * @param {number} symbol_idx
     * @param {boolean} _is_repair
     * @param {Uint8Array} data
     * @returns {Uint8Array | undefined}
     */
    add_symbol(block_id, symbol_idx, _is_repair, data) {
        const ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        const ret = wasm.wzpfecdecoder_add_symbol(this.__wbg_ptr, block_id, symbol_idx, _is_repair, ptr0, len0);
        let v2;
        if (ret[0] !== 0) {
            v2 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
            wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        }
        return v2;
    }
    /**
     * Create a new FEC decoder.
     *
     * * `block_size` — expected number of source symbols per block.
     * * `symbol_size` — padded byte size of each symbol (must match encoder).
     * @param {number} block_size
     * @param {number} symbol_size
     */
    constructor(block_size, symbol_size) {
        const ret = wasm.wzpfecdecoder_new(block_size, symbol_size);
        this.__wbg_ptr = ret >>> 0;
        WzpFecDecoderFinalization.register(this, this.__wbg_ptr, this);
        return this;
    }
}
if (Symbol.dispose) WzpFecDecoder.prototype[Symbol.dispose] = WzpFecDecoder.prototype.free;

export class WzpFecEncoder {
    __destroy_into_raw() {
        const ptr = this.__wbg_ptr;
        this.__wbg_ptr = 0;
        WzpFecEncoderFinalization.unregister(this);
        return ptr;
    }
    free() {
        const ptr = this.__destroy_into_raw();
        wasm.__wbg_wzpfecencoder_free(ptr, 0);
    }
    /**
     * Add a source symbol (audio frame).
     *
     * Returns encoded packets (all source + repair) when the block is complete,
     * or `undefined` if the block is still accumulating.
     *
     * Each returned packet carries the 3-byte header:
     *   `[block_id][symbol_idx][is_repair]` followed by `symbol_size` bytes.
     * @param {Uint8Array} data
     * @returns {Uint8Array | undefined}
     */
    add_symbol(data) {
        const ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        const ret = wasm.wzpfecencoder_add_symbol(this.__wbg_ptr, ptr0, len0);
        let v2;
        if (ret[0] !== 0) {
            v2 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
            wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        }
        return v2;
    }
    /**
     * Force-flush the current (possibly partial) block.
     *
     * Returns all source + repair symbols with headers, or empty vec if no
     * symbols have been accumulated.
     * @returns {Uint8Array}
     */
    flush() {
        const ret = wasm.wzpfecencoder_flush(this.__wbg_ptr);
        var v1 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
        wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        return v1;
    }
    /**
     * Create a new FEC encoder.
     *
     * * `block_size` — number of source symbols (audio frames) per FEC block.
     * * `symbol_size` — padded byte size of each symbol (default 256).
     * @param {number} block_size
     * @param {number} symbol_size
     */
    constructor(block_size, symbol_size) {
        const ret = wasm.wzpfecencoder_new(block_size, symbol_size);
        this.__wbg_ptr = ret >>> 0;
        WzpFecEncoderFinalization.register(this, this.__wbg_ptr, this);
        return this;
    }
}
if (Symbol.dispose) WzpFecEncoder.prototype[Symbol.dispose] = WzpFecEncoder.prototype.free;

/**
 * X25519 key exchange: generate ephemeral keypair and derive shared secret.
 *
 * Usage from JS:
 * ```js
 * const kx = new WzpKeyExchange();
 * const ourPub = kx.public_key();         // Uint8Array(32)
 * // ... send ourPub to peer, receive peerPub ...
 * const secret = kx.derive_shared_secret(peerPub); // Uint8Array(32)
 * const session = new WzpCryptoSession(secret);
 * ```
 */
export class WzpKeyExchange {
    __destroy_into_raw() {
        const ptr = this.__wbg_ptr;
        this.__wbg_ptr = 0;
        WzpKeyExchangeFinalization.unregister(this);
        return ptr;
    }
    free() {
        const ptr = this.__destroy_into_raw();
        wasm.__wbg_wzpkeyexchange_free(ptr, 0);
    }
    /**
     * Derive a 32-byte session key from the peer's public key.
     *
     * Raw DH output is expanded via HKDF-SHA256 with info="warzone-session-key",
     * matching `wzp-crypto::handshake::WarzoneKeyExchange::derive_session`.
     * @param {Uint8Array} peer_public
     * @returns {Uint8Array}
     */
    derive_shared_secret(peer_public) {
        const ptr0 = passArray8ToWasm0(peer_public, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        const ret = wasm.wzpkeyexchange_derive_shared_secret(this.__wbg_ptr, ptr0, len0);
        if (ret[3]) {
            throw takeFromExternrefTable0(ret[2]);
        }
        var v2 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
        wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        return v2;
    }
    /**
     * Generate a new random X25519 keypair.
     */
    constructor() {
        const ret = wasm.wzpkeyexchange_new();
        this.__wbg_ptr = ret >>> 0;
        WzpKeyExchangeFinalization.register(this, this.__wbg_ptr, this);
        return this;
    }
    /**
     * Our public key (32 bytes).
     * @returns {Uint8Array}
     */
    public_key() {
        const ret = wasm.wzpkeyexchange_public_key(this.__wbg_ptr);
        var v1 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
        wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
        return v1;
    }
}
if (Symbol.dispose) WzpKeyExchange.prototype[Symbol.dispose] = WzpKeyExchange.prototype.free;

function __wbg_get_imports() {
    const import0 = {
        __proto__: null,
        __wbg___wbindgen_is_function_3c846841762788c1: function(arg0) {
            const ret = typeof(arg0) === 'function';
            return ret;
        },
        __wbg___wbindgen_is_object_781bc9f159099513: function(arg0) {
            const val = arg0;
            const ret = typeof(val) === 'object' && val !== null;
            return ret;
        },
        __wbg___wbindgen_is_string_7ef6b97b02428fae: function(arg0) {
            const ret = typeof(arg0) === 'string';
            return ret;
        },
        __wbg___wbindgen_is_undefined_52709e72fb9f179c: function(arg0) {
            const ret = arg0 === undefined;
            return ret;
        },
        __wbg___wbindgen_throw_6ddd609b62940d55: function(arg0, arg1) {
            throw new Error(getStringFromWasm0(arg0, arg1));
        },
        __wbg_call_2d781c1f4d5c0ef8: function() { return handleError(function (arg0, arg1, arg2) {
            const ret = arg0.call(arg1, arg2);
            return ret;
        }, arguments); },
        __wbg_crypto_38df2bab126b63dc: function(arg0) {
            const ret = arg0.crypto;
            return ret;
        },
        __wbg_getRandomValues_c44a50d8cfdaebeb: function() { return handleError(function (arg0, arg1) {
            arg0.getRandomValues(arg1);
        }, arguments); },
        __wbg_length_ea16607d7b61445b: function(arg0) {
            const ret = arg0.length;
            return ret;
        },
        __wbg_msCrypto_bd5a034af96bcba6: function(arg0) {
            const ret = arg0.msCrypto;
            return ret;
        },
        __wbg_new_with_length_825018a1616e9e55: function(arg0) {
            const ret = new Uint8Array(arg0 >>> 0);
            return ret;
        },
        __wbg_node_84ea875411254db1: function(arg0) {
            const ret = arg0.node;
            return ret;
        },
        __wbg_process_44c7a14e11e9f69e: function(arg0) {
            const ret = arg0.process;
            return ret;
        },
        __wbg_prototypesetcall_d62e5099504357e6: function(arg0, arg1, arg2) {
            Uint8Array.prototype.set.call(getArrayU8FromWasm0(arg0, arg1), arg2);
        },
        __wbg_randomFillSync_6c25eac9869eb53c: function() { return handleError(function (arg0, arg1) {
            arg0.randomFillSync(arg1);
        }, arguments); },
        __wbg_require_b4edbdcf3e2a1ef0: function() { return handleError(function () {
            const ret = module.require;
            return ret;
        }, arguments); },
        __wbg_static_accessor_GLOBAL_8adb955bd33fac2f: function() {
            const ret = typeof global === 'undefined' ? null : global;
            return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
        },
        __wbg_static_accessor_GLOBAL_THIS_ad356e0db91c7913: function() {
            const ret = typeof globalThis === 'undefined' ? null : globalThis;
            return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
        },
        __wbg_static_accessor_SELF_f207c857566db248: function() {
            const ret = typeof self === 'undefined' ? null : self;
            return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
        },
        __wbg_static_accessor_WINDOW_bb9f1ba69d61b386: function() {
            const ret = typeof window === 'undefined' ? null : window;
            return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
        },
        __wbg_subarray_a068d24e39478a8a: function(arg0, arg1, arg2) {
            const ret = arg0.subarray(arg1 >>> 0, arg2 >>> 0);
            return ret;
        },
        __wbg_versions_276b2795b1c6a219: function(arg0) {
            const ret = arg0.versions;
            return ret;
        },
        __wbindgen_cast_0000000000000001: function(arg0, arg1) {
            // Cast intrinsic for `Ref(Slice(U8)) -> NamedExternref("Uint8Array")`.
            const ret = getArrayU8FromWasm0(arg0, arg1);
            return ret;
        },
        __wbindgen_cast_0000000000000002: function(arg0, arg1) {
            // Cast intrinsic for `Ref(String) -> Externref`.
            const ret = getStringFromWasm0(arg0, arg1);
            return ret;
        },
        __wbindgen_init_externref_table: function() {
            const table = wasm.__wbindgen_externrefs;
            const offset = table.grow(4);
            table.set(0, undefined);
            table.set(offset + 0, undefined);
            table.set(offset + 1, null);
            table.set(offset + 2, true);
            table.set(offset + 3, false);
        },
    };
    return {
        __proto__: null,
        "./wzp_wasm_bg.js": import0,
    };
}

const WzpCryptoSessionFinalization = (typeof FinalizationRegistry === 'undefined')
    ? { register: () => {}, unregister: () => {} }
    : new FinalizationRegistry(ptr => wasm.__wbg_wzpcryptosession_free(ptr >>> 0, 1));
const WzpFecDecoderFinalization = (typeof FinalizationRegistry === 'undefined')
    ? { register: () => {}, unregister: () => {} }
    : new FinalizationRegistry(ptr => wasm.__wbg_wzpfecdecoder_free(ptr >>> 0, 1));
const WzpFecEncoderFinalization = (typeof FinalizationRegistry === 'undefined')
    ? { register: () => {}, unregister: () => {} }
    : new FinalizationRegistry(ptr => wasm.__wbg_wzpfecencoder_free(ptr >>> 0, 1));
const WzpKeyExchangeFinalization = (typeof FinalizationRegistry === 'undefined')
    ? { register: () => {}, unregister: () => {} }
    : new FinalizationRegistry(ptr => wasm.__wbg_wzpkeyexchange_free(ptr >>> 0, 1));

function addToExternrefTable0(obj) {
    const idx = wasm.__externref_table_alloc();
    wasm.__wbindgen_externrefs.set(idx, obj);
    return idx;
}

function getArrayU8FromWasm0(ptr, len) {
    ptr = ptr >>> 0;
    return getUint8ArrayMemory0().subarray(ptr / 1, ptr / 1 + len);
}

function getStringFromWasm0(ptr, len) {
    ptr = ptr >>> 0;
    return decodeText(ptr, len);
}

let cachedUint8ArrayMemory0 = null;
function getUint8ArrayMemory0() {
    if (cachedUint8ArrayMemory0 === null || cachedUint8ArrayMemory0.byteLength === 0) {
        cachedUint8ArrayMemory0 = new Uint8Array(wasm.memory.buffer);
    }
    return cachedUint8ArrayMemory0;
}

function handleError(f, args) {
    try {
        return f.apply(this, args);
    } catch (e) {
        const idx = addToExternrefTable0(e);
        wasm.__wbindgen_exn_store(idx);
    }
}

function isLikeNone(x) {
    return x === undefined || x === null;
}

function passArray8ToWasm0(arg, malloc) {
    const ptr = malloc(arg.length * 1, 1) >>> 0;
    getUint8ArrayMemory0().set(arg, ptr / 1);
    WASM_VECTOR_LEN = arg.length;
    return ptr;
}

function takeFromExternrefTable0(idx) {
    const value = wasm.__wbindgen_externrefs.get(idx);
    wasm.__externref_table_dealloc(idx);
    return value;
}

let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
cachedTextDecoder.decode();
const MAX_SAFARI_DECODE_BYTES = 2146435072;
let numBytesDecoded = 0;
function decodeText(ptr, len) {
    numBytesDecoded += len;
    if (numBytesDecoded >= MAX_SAFARI_DECODE_BYTES) {
        cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
        cachedTextDecoder.decode();
        numBytesDecoded = len;
    }
    return cachedTextDecoder.decode(getUint8ArrayMemory0().subarray(ptr, ptr + len));
}

let WASM_VECTOR_LEN = 0;

let wasmModule, wasm;
function __wbg_finalize_init(instance, module) {
    wasm = instance.exports;
    wasmModule = module;
    cachedUint8ArrayMemory0 = null;
    wasm.__wbindgen_start();
    return wasm;
}

async function __wbg_load(module, imports) {
    if (typeof Response === 'function' && module instanceof Response) {
        if (typeof WebAssembly.instantiateStreaming === 'function') {
            try {
                return await WebAssembly.instantiateStreaming(module, imports);
            } catch (e) {
                const validResponse = module.ok && expectedResponseType(module.type);

                if (validResponse && module.headers.get('Content-Type') !== 'application/wasm') {
                    console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve Wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);

                } else { throw e; }
            }
        }

        const bytes = await module.arrayBuffer();
        return await WebAssembly.instantiate(bytes, imports);
    } else {
        const instance = await WebAssembly.instantiate(module, imports);

        if (instance instanceof WebAssembly.Instance) {
            return { instance, module };
        } else {
            return instance;
        }
    }

    function expectedResponseType(type) {
        switch (type) {
            case 'basic': case 'cors': case 'default': return true;
        }
        return false;
    }
}

function initSync(module) {
    if (wasm !== undefined) return wasm;


    if (module !== undefined) {
        if (Object.getPrototypeOf(module) === Object.prototype) {
            ({module} = module)
        } else {
            console.warn('using deprecated parameters for `initSync()`; pass a single object instead')
        }
    }

    const imports = __wbg_get_imports();
    if (!(module instanceof WebAssembly.Module)) {
        module = new WebAssembly.Module(module);
    }
    const instance = new WebAssembly.Instance(module, imports);
    return __wbg_finalize_init(instance, module);
}

async function __wbg_init(module_or_path) {
    if (wasm !== undefined) return wasm;


    if (module_or_path !== undefined) {
        if (Object.getPrototypeOf(module_or_path) === Object.prototype) {
            ({module_or_path} = module_or_path)
        } else {
            console.warn('using deprecated parameters for the initialization function; pass a single object instead')
        }
    }

    if (module_or_path === undefined) {
        module_or_path = new URL('wzp_wasm_bg.wasm', import.meta.url);
    }
    const imports = __wbg_get_imports();

    if (typeof module_or_path === 'string' || (typeof Request === 'function' && module_or_path instanceof Request) || (typeof URL === 'function' && module_or_path instanceof URL)) {
        module_or_path = fetch(module_or_path);
    }

    const { instance, module } = await __wbg_load(await module_or_path, imports);

    return __wbg_finalize_init(instance, module);
}

export { initSync, __wbg_init as default };