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

/**
 * Derive a keypair from a BIP39 mnemonic at a hardened derivation path.
 *
 * Lattice keys have no public derivability, so there is no soft-junction
 * equivalent and the crate rejects any unhardened path outright. The Quantus
 * convention is:
 *
 * ```text
 * m/44'/189189'/<account>'/0'/<0 for ML-DSA-87 | 1 for ML-DSA-65>'
 * ```
 *
 * with the account index at the third level and the *scheme* carried in the
 * trailing index. That is unusual, and it is what `quantus-cli` and the mobile
 * wallet already use — deriving anything else produces addresses no other
 * Quantus tool can find.
 *
 * The seeding matters as much as the path. This goes mnemonic → 64-byte BIP39
 * seed → HMAC-SHA512 chain keyed with the literal string `"Dilithium seed"`.
 * Substrate's own `mnemonicToMiniSecret` is a *different* derivation and is the
 * default reach in the polkadot-js codebase; using it here would yield a
 * well-formed key for an account nobody owns.
 *
 * * mnemonic: BIP39 phrase, 12/15/18/21/24 words
 * * password: BIP39 passphrase; empty string for none
 * * path: hardened derivation path, e.g. `m/44'/189189'/0'/0'/1'`
 * * scheme: 0 for ML-DSA-87, 1 for ML-DSA-65
 *
 * * returned vector is the secret key followed by the public key, as
 *   `ext_mldsa_from_seed` returns.
 * @param {string} mnemonic
 * @param {string} password
 * @param {string} path
 * @param {number} scheme
 * @returns {Uint8Array}
 */
export function ext_mldsa_derive(mnemonic, password, path, scheme) {
    const ptr0 = passStringToWasm0(mnemonic, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
    const len0 = WASM_VECTOR_LEN;
    const ptr1 = passStringToWasm0(password, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
    const len1 = WASM_VECTOR_LEN;
    const ptr2 = passStringToWasm0(path, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
    const len2 = WASM_VECTOR_LEN;
    const ret = wasm.ext_mldsa_derive(ptr0, len0, ptr1, len1, ptr2, len2, scheme);
    if (ret[3]) {
        throw takeFromExternrefTable0(ret[2]);
    }
    var v4 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
    wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
    return v4;
}

/**
 * Generate a keypair from 32 bytes of entropy.
 *
 * This is FIPS 204 `ML-DSA.KeyGen_internal` with no Quantus-specific step: the
 * crate expands the seed as `SHAKE256(seed ‖ k ‖ ℓ)`, so the parameter set is
 * absorbed into the expansion and the same 32 bytes yield independent keys per
 * scheme. That is why the dev accounts (`[0u8; 32]`, `[1u8; 32]`, `[2u8; 32]`)
 * and HD-derived accounts can share this one entry point.
 *
 * * seed: UIntArray with 32 elements
 * * scheme: 0 for ML-DSA-87, 1 for ML-DSA-65
 *
 * * returned vector is the secret key followed by the public key, matching the
 *   ordering `ext_ed_from_seed` uses. Split it at the secret length from
 *   `ext_mldsa_sizes`.
 * @param {Uint8Array} seed
 * @param {number} scheme
 * @returns {Uint8Array}
 */
export function ext_mldsa_from_seed(seed, scheme) {
    const ptr0 = passArray8ToWasm0(seed, wasm.__wbindgen_malloc);
    const len0 = WASM_VECTOR_LEN;
    const ret = wasm.ext_mldsa_from_seed(ptr0, len0, scheme);
    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;
}

/**
 * Whether `scheme` names a parameter set this build supports.
 *
 * `dispatch!` falls back to ML-DSA-87 for anything unrecognised, which is the
 * right default but a poor way to discover a typo. Callers that accept a scheme
 * from storage or from a user should check here first.
 * @param {number} scheme
 * @returns {boolean}
 */
export function ext_mldsa_is_scheme(scheme) {
    const ret = wasm.ext_mldsa_is_scheme(scheme);
    return ret !== 0;
}

/**
 * Sign a message under a FIPS 204 context.
 *
 * Signing is deterministic — no hedging randomness — because that is what the
 * runtime does (`hedge: None`), and a wallet that hedged would produce a
 * different signature each time for the same input, which makes the
 * byte-for-byte agreement tests in quantus/wasm#2 impossible to write.
 *
 * `ctx` is domain separation and it is **not** optional in practice: extrinsics
 * on spec >= 148 are verified under `QUANTUS_EXTRINSIC`, earlier specs under the
 * empty context, and a signature made under the wrong one is valid, rejected by
 * the chain, and indistinguishable locally. The caller chooses; this function
 * does not guess.
 *
 * * secret: UIntArray, secret-key length for the scheme
 * * public: UIntArray, public-key length for the scheme
 * * message: arbitrary length UIntArray
 * * ctx: UIntArray, at most 255 elements; empty for no context
 * * scheme: 0 for ML-DSA-87, 1 for ML-DSA-65
 *
 * * returned vector is the signature alone. The runtime's wire format is
 *   `signature ‖ public`; concatenating is the caller's job because only the
 *   caller knows whether it wants the wire form or the bare signature.
 * @param {Uint8Array} secret
 * @param {Uint8Array} _public
 * @param {Uint8Array} message
 * @param {Uint8Array} ctx
 * @param {number} scheme
 * @returns {Uint8Array}
 */
export function ext_mldsa_sign(secret, _public, message, ctx, scheme) {
    const ptr0 = passArray8ToWasm0(secret, wasm.__wbindgen_malloc);
    const len0 = WASM_VECTOR_LEN;
    const ptr1 = passArray8ToWasm0(_public, wasm.__wbindgen_malloc);
    const len1 = WASM_VECTOR_LEN;
    const ptr2 = passArray8ToWasm0(message, wasm.__wbindgen_malloc);
    const len2 = WASM_VECTOR_LEN;
    const ptr3 = passArray8ToWasm0(ctx, wasm.__wbindgen_malloc);
    const len3 = WASM_VECTOR_LEN;
    const ret = wasm.ext_mldsa_sign(ptr0, len0, ptr1, len1, ptr2, len2, ptr3, len3, scheme);
    if (ret[3]) {
        throw takeFromExternrefTable0(ret[2]);
    }
    var v5 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
    wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
    return v5;
}

/**
 * Key and signature sizes for a parameter set, as
 * `[public, secret, signature, signature_with_public]`.
 *
 * Exported so that nothing on the JS side has to hardcode 1952/4032/3309/5261 or
 * 2592/4896/4627/7219. Those numbers are consensus-critical — the runtime reads a
 * fixed-size array off the wire — and a JS constant that drifted from the crate
 * would mis-frame every byte after the signature while looking entirely healthy.
 * Ask the crate instead.
 *
 * * scheme: 0 for ML-DSA-87, 1 for ML-DSA-65
 *
 * * returned vector is four u32 lengths, little-endian, 16 bytes total.
 * @param {number} scheme
 * @returns {Uint8Array}
 */
export function ext_mldsa_sizes(scheme) {
    const ret = wasm.ext_mldsa_sizes(scheme);
    var v1 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
    wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
    return v1;
}

/**
 * Verify a signature against a message and public key under a context.
 *
 * * public: UIntArray, public-key length for the scheme
 * * message: arbitrary length UIntArray
 * * signature: UIntArray, signature length for the scheme
 * * ctx: UIntArray, at most 255 elements; empty for no context
 * * scheme: 0 for ML-DSA-87, 1 for ML-DSA-65
 * @param {Uint8Array} _public
 * @param {Uint8Array} message
 * @param {Uint8Array} signature
 * @param {Uint8Array} ctx
 * @param {number} scheme
 * @returns {boolean}
 */
export function ext_mldsa_verify(_public, message, signature, ctx, scheme) {
    const ptr0 = passArray8ToWasm0(_public, wasm.__wbindgen_malloc);
    const len0 = WASM_VECTOR_LEN;
    const ptr1 = passArray8ToWasm0(message, wasm.__wbindgen_malloc);
    const len1 = WASM_VECTOR_LEN;
    const ptr2 = passArray8ToWasm0(signature, wasm.__wbindgen_malloc);
    const len2 = WASM_VECTOR_LEN;
    const ptr3 = passArray8ToWasm0(ctx, wasm.__wbindgen_malloc);
    const len3 = WASM_VECTOR_LEN;
    const ret = wasm.ext_mldsa_verify(ptr0, len0, ptr1, len1, ptr2, len2, ptr3, len3, scheme);
    return ret !== 0;
}

/**
 * Poseidon2-over-Goldilocks hash of arbitrary bytes.
 *
 * This is the account-id derivation. On Substrate an `AccountId32` *is* the
 * public key; on Quantus it is `hash_bytes(public_key)`, which is why a Quantus
 * signature has to carry its public key along — the address cannot give it back.
 *
 * `qp_poseidon_core::hash_bytes` is `IdentifyAccount for DilithiumSigner` in the
 * runtime, so this is the same function the chain uses to decide who signed
 * something, reached through the same crate rather than a port of it.
 *
 * * data: arbitrary length UIntArray
 *
 * * returned vector is 32 bytes.
 * @param {Uint8Array} data
 * @returns {Uint8Array}
 */
export function ext_poseidon_hash(data) {
    const ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
    const len0 = WASM_VECTOR_LEN;
    const ret = wasm.ext_poseidon_hash(ptr0, len0);
    var v2 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
    wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
    return v2;
}
function __wbg_get_imports() {
    const import0 = {
        __proto__: null,
        __wbg_Error_67e7344beaa85059: function(arg0, arg1) {
            const ret = Error(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,
        "./quantus_crypto_bg.js": import0,
    };
}

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

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

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

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 passStringToWasm0(arg, malloc, realloc) {
    if (realloc === undefined) {
        const buf = cachedTextEncoder.encode(arg);
        const ptr = malloc(buf.length, 1) >>> 0;
        getUint8ArrayMemory0().subarray(ptr, ptr + buf.length).set(buf);
        WASM_VECTOR_LEN = buf.length;
        return ptr;
    }

    let len = arg.length;
    let ptr = malloc(len, 1) >>> 0;

    const mem = getUint8ArrayMemory0();

    let offset = 0;

    for (; offset < len; offset++) {
        const code = arg.charCodeAt(offset);
        if (code > 0x7F) break;
        mem[ptr + offset] = code;
    }
    if (offset !== len) {
        if (offset !== 0) {
            arg = arg.slice(offset);
        }
        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;
        const view = getUint8ArrayMemory0().subarray(ptr + offset, ptr + len);
        const ret = cachedTextEncoder.encodeInto(arg, view);

        offset += ret.written;
        ptr = realloc(ptr, len, offset, 1) >>> 0;
    }

    WASM_VECTOR_LEN = offset;
    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));
}

const cachedTextEncoder = new TextEncoder();

if (!('encodeInto' in cachedTextEncoder)) {
    cachedTextEncoder.encodeInto = function (arg, view) {
        const buf = cachedTextEncoder.encode(arg);
        view.set(buf);
        return {
            read: arg.length,
            written: buf.length
        };
    };
}

let WASM_VECTOR_LEN = 0;

let wasmModule, wasmInstance, wasm;
function __wbg_finalize_init(instance, module) {
    wasmInstance = instance;
    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 (!module.ok) {
            throw new Error(`failed to fetch Wasm: ${module.status} ${module.statusText} fetching '${module.url}'`);
        }

        if (typeof WebAssembly.instantiateStreaming === 'function') {
            try {
                return await WebAssembly.instantiateStreaming(module, imports);
            } catch (e) {
                const validResponse = 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('quantus_crypto_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 };