import init from './rpack_bg.wasm?init';
let wasm

let cachedUint8ArrayMemory0 = null;

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

async function initWasm() {
    if(wasm) {
        return null
    }
    const instance = await init()
    wasm = instance.exports;
    return;
}

let WASM_VECTOR_LEN = 0;

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

let cachedDataViewMemory0 = null;

function getDataViewMemory0() {
    if (cachedDataViewMemory0 === null || cachedDataViewMemory0.buffer.detached === true || (cachedDataViewMemory0.buffer.detached === undefined && cachedDataViewMemory0.buffer !== wasm.memory.buffer)) {
        cachedDataViewMemory0 = new DataView(wasm.memory.buffer);
    }
    return cachedDataViewMemory0;
}

function getArrayU8FromWasm0(ptr, len) {
    ptr = ptr >>> 0;
    return getUint8ArrayMemory0().subarray(ptr / 1, ptr / 1 + len);
}
/**
* @param {Uint8Array} datas
* @returns {Promise<Uint8Array>}
*/
export async function encodeRPack(datas) {
    await initWasm();
    try {
        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
        const ptr0 = passArray8ToWasm0(datas, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        wasm.encode(retptr, ptr0, len0);
        var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
        var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
        var v2 = getArrayU8FromWasm0(r0, r1).slice();
        wasm.__wbindgen_free(r0, r1 * 1, 1);
        return v2;
    } finally {
        wasm.__wbindgen_add_to_stack_pointer(16);
    }
}

/**
* @param {Uint8Array} datas
* @returns {Promise<Uint8Array>}
*/
export async function decodeRPack(datas) {
    await initWasm();
    try {
        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
        const ptr0 = passArray8ToWasm0(datas, wasm.__wbindgen_malloc);
        const len0 = WASM_VECTOR_LEN;
        wasm.decode(retptr, ptr0, len0);
        var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
        var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
        var v2 = getArrayU8FromWasm0(r0, r1).slice();
        wasm.__wbindgen_free(r0, r1 * 1, 1);
        return v2;
    } finally {
        wasm.__wbindgen_add_to_stack_pointer(16);
    }
}