snarkos-toolkit 1.3.11

A developer toolkit for a decentralized operating system
Documentation 
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// Copyright (C) 2019-2021 Aleo Systems Inc.
// This file is part of the snarkOS library.

// The snarkOS library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// The snarkOS library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with the snarkOS library. If not, see <https://www.gnu.org/licenses/>.

use crate::{
    account::{Address, PrivateKey},
    dpc::{
        Record,
        TransactionKernel as TransactionKernelNative,
        TransactionKernelBuilder as TransactionKernelBuilderNative,
    },
};

use rand::{rngs::StdRng, SeedableRng};
use std::str::FromStr;
use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub struct TransactionKernelBuilder {
    pub(crate) builder: TransactionKernelBuilderNative,
}

#[wasm_bindgen]
impl TransactionKernelBuilder {
    #[wasm_bindgen(constructor)]
    pub fn new() -> Self {
        Self {
            builder: TransactionKernelBuilderNative::new(),
        }
    }

    #[wasm_bindgen]
    pub fn add_input(self, private_key: &str, record: &str) -> Self {
        let private_key = PrivateKey::from_str(private_key).unwrap();
        let record = Record::from_str(record).unwrap();

        Self {
            builder: self.builder.add_input(private_key, record).unwrap(),
        }
    }

    #[wasm_bindgen]
    pub fn add_output(self, address: &str, amount: u64) -> Self {
        let recipient = Address::from_str(address).unwrap();

        Self {
            builder: self.builder.add_output(recipient, amount).unwrap(),
        }
    }

    #[wasm_bindgen]
    pub fn network_id(self, network_id: u8) -> Self {
        let builder = self.builder;
        Self {
            builder: builder.network_id(network_id),
        }
    }

    #[wasm_bindgen]
    pub fn build(&self) -> TransactionKernel {
        let rng = &mut StdRng::from_entropy();

        TransactionKernel {
            transaction_kernel: self.builder.build(rng).unwrap(),
        }
    }
}

#[wasm_bindgen]
pub struct TransactionKernel {
    pub(crate) transaction_kernel: TransactionKernelNative,
}

#[wasm_bindgen]
impl TransactionKernel {
    #[wasm_bindgen]
    pub fn from_string(offline_transaction: &str) -> Self {
        let transaction_kernel = TransactionKernelNative::from_str(offline_transaction).unwrap();
        Self { transaction_kernel }
    }

    #[wasm_bindgen]
    pub fn to_string(&self) -> String {
        format!(
            "TransactionKernel {{ transaction_kernel: {} }}",
            self.transaction_kernel
        )
    }
}