<?php

/**
 * Ethereum JSON-RPC interface
 *
 * See Ethereum API documentation for more information:
 * http://ethereum.gitbooks.io/frontier-guide/content/rpc.html
 */
namespace org;

use org\JsonRpc;

class Ethereum extends JsonRpc
{
    private function ether_request($method, $params=array())
    {
        try {
            $ret = $this->request($method, $params);
            return $ret;
        } catch (RPCException $e) {
            throw $e;
        }
    }

    private function decode_hex($input)
    {
        if (substr($input, 0, 2) == '0x') {
            $input = substr($input, 2);
        }

        if (preg_match('/[a-f0-9]+/', $input)) {
            return hexdec($input);
        }

        return $input;
    }

    public function web3_clientVersion()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function web3_sha3($input)
    {
        return $this->ether_request(__FUNCTION__, array($input));
    }

    public function net_version()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function net_listening()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function net_peerCount()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_protocolVersion()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_coinbase()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_mining()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_hashrate()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_gasPrice()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_accounts()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function personal_newAccount($passwd)
    {
        return $this->ether_request(__FUNCTION__, array($passwd));
    }

    public function personal_unlockAccount($account, $passwd)
    {
        return $this->ether_request(__FUNCTION__, array($account,$passwd));
    }

    public function eth_blockNumber($decode_hex=false)
    {
        $block = $this->ether_request(__FUNCTION__);

        if ($decode_hex) {
            $block = $this->decode_hex($block);
        }

        return $block;
    }

    public function eth_getBalance($address, $block='latest', $decode_hex=false)
    {
        $balance = $this->ether_request(__FUNCTION__, array($address, $block));

        if ($decode_hex) {
            $balance = $this->decode_hex($balance);
        }

        return $balance;
    }

    public function eth_getStorageAt($address, $at, $block='latest')
    {
        return $this->ether_request(__FUNCTION__, array($address, $at, $block));
    }

    public function eth_getTransactionCount($address, $block='latest', $decode_hex=false)
    {
        $count = $this->ether_request(__FUNCTION__, array($address, $block));

        if ($decode_hex) {
            $count = $this->decode_hex($count);
        }

        return $count;
    }

    public function eth_getBlockTransactionCountByHash($tx_hash)
    {
        return $this->ether_request(__FUNCTION__, array($tx_hash));
    }

    public function eth_getBlockTransactionCountByNumber($tx='latest')
    {
        return $this->ether_request(__FUNCTION__, array($tx));
    }

    public function eth_getUncleCountByBlockHash($block_hash)
    {
        return $this->ether_request(__FUNCTION__, array($block_hash));
    }

    public function eth_getUncleCountByBlockNumber($block='latest')
    {
        return $this->ether_request(__FUNCTION__, array($block));
    }

    public function eth_getCode($address, $block='latest')
    {
        return $this->ether_request(__FUNCTION__, array($address, $block));
    }

    public function eth_sign($address, $input)
    {
        return $this->ether_request(__FUNCTION__, array($address, $input));
    }

    // function eth_sendTransaction($transaction)
    // {
    //     if(!is_a($transaction, 'Ethereum_Transaction'))
    //     {
    //        throw new ErrorException('Transaction object expected');
    //     }
    //     else
    //     {
    //        return $this->ether_request(__FUNCTION__, $transaction->toArray());
    //     }
    // }
    public function eth_sendTransaction($account_from, $account_to, $amount)
    {
        return $this->ether_request(__FUNCTION__, array(array("from"=>$account_from,"to"=>$account_to,"value"=>'0x'.$amount, "gas" => '0x5208', "gasPrice" => '0x55ae82600'))); // "gas" => '0xc350', "gasPrice" => '0x1a13b8600'
    }

    public function eth_call($message, $block)
    {
        if (!is_a($message, 'Ethereum_Message')) {
            throw new ErrorException('Message object expected');
        } else {
            return $this->ether_request(__FUNCTION__, $message->toArray());
        }
    }

    public function eth_estimateGas($message, $block)
    {
        if (!is_a($message, 'Ethereum_Message')) {
            throw new ErrorException('Message object expected');
        } else {
            return $this->ether_request(__FUNCTION__, $message->toArray());
        }
    }

    public function eth_getBlockByHash($hash, $full_tx=true)
    {
        return $this->ether_request(__FUNCTION__, array($hash, $full_tx));
    }

    public function eth_getBlockByNumber($block='latest', $full_tx=true)
    {
        return $this->ether_request(__FUNCTION__, array($block, $full_tx));
    }

    public function eth_getTransactionByHash($hash)
    {
        return $this->ether_request(__FUNCTION__, array($hash));
    }

    public function eth_getTransactionByBlockHashAndIndex($hash, $index)
    {
        return $this->ether_request(__FUNCTION__, array($hash, $index));
    }

    public function eth_getTransactionByBlockNumberAndIndex($block, $index)
    {
        return $this->ether_request(__FUNCTION__, array($block, $index));
    }

    public function eth_getTransactionReceipt($tx_hash)
    {
        return $this->ether_request(__FUNCTION__, array($tx_hash));
    }

    public function eth_getUncleByBlockHashAndIndex($hash, $index)
    {
        return $this->ether_request(__FUNCTION__, array($hash, $index));
    }

    public function eth_getUncleByBlockNumberAndIndex($block, $index)
    {
        return $this->ether_request(__FUNCTION__, array($block, $index));
    }

    public function eth_getCompilers()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_compileSolidity($code)
    {
        return $this->ether_request(__FUNCTION__, array($code));
    }

    public function eth_compileLLL($code)
    {
        return $this->ether_request(__FUNCTION__, array($code));
    }

    public function eth_compileSerpent($code)
    {
        return $this->ether_request(__FUNCTION__, array($code));
    }

    public function eth_newFilter($filter, $decode_hex=false)
    {
        if (!is_a($filter, 'Ethereum_Filter')) {
            throw new ErrorException('Expected a Filter object');
        } else {
            $id = $this->ether_request(__FUNCTION__, $filter->toArray());

            if ($decode_hex) {
                $id = $this->decode_hex($id);
            }

            return $id;
        }
    }

    public function eth_newBlockFilter($decode_hex=false)
    {
        $id = $this->ether_request(__FUNCTION__);

        if ($decode_hex) {
            $id = $this->decode_hex($id);
        }

        return $id;
    }

    public function eth_newPendingTransactionFilter($decode_hex=false)
    {
        $id = $this->ether_request(__FUNCTION__);

        if ($decode_hex) {
            $id = $this->decode_hex($id);
        }

        return $id;
    }

    public function eth_uninstallFilter($id)
    {
        return $this->ether_request(__FUNCTION__, array($id));
    }

    public function eth_getFilterChanges($id)
    {
        return $this->ether_request(__FUNCTION__, array($id));
    }

    public function eth_getFilterLogs($id)
    {
        return $this->ether_request(__FUNCTION__, array($id));
    }

    public function eth_getLogs($filter)
    {
        if (!is_a($filter, 'Ethereum_Filter')) {
            throw new ErrorException('Expected a Filter object');
        } else {
            return $this->ether_request(__FUNCTION__, $filter->toArray());
        }
    }

    public function eth_getWork()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function eth_submitWork($nonce, $pow_hash, $mix_digest)
    {
        return $this->ether_request(__FUNCTION__, array($nonce, $pow_hash, $mix_digest));
    }

    public function db_putString($db, $key, $value)
    {
        return $this->ether_request(__FUNCTION__, array($db, $key, $value));
    }

    public function db_getString($db, $key)
    {
        return $this->ether_request(__FUNCTION__, array($db, $key));
    }

    public function db_putHex($db, $key, $value)
    {
        return $this->ether_request(__FUNCTION__, array($db, $key, $value));
    }

    public function db_getHex($db, $key)
    {
        return $this->ether_request(__FUNCTION__, array($db, $key));
    }

    public function shh_version()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function shh_post($post)
    {
        if (!is_a($post, 'Whisper_Post')) {
            throw new ErrorException('Expected a Whisper post');
        } else {
            return $this->ether_request(__FUNCTION__, $post->toArray());
        }
    }

    public function shh_newIdentinty()
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function shh_hasIdentity($id)
    {
        return $this->ether_request(__FUNCTION__);
    }

    public function shh_newFilter($to=null, $topics=array())
    {
        return $this->ether_request(__FUNCTION__, array(array('to'=>$to, 'topics'=>$topics)));
    }

    public function shh_uninstallFilter($id)
    {
        return $this->ether_request(__FUNCTION__, array($id));
    }

    public function shh_getFilterChanges($id)
    {
        return $this->ether_request(__FUNCTION__, array($id));
    }

    public function shh_getMessages($id)
    {
        return $this->ether_request(__FUNCTION__, array($id));
    }
}

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