anypay 0.1.0

AnyPay is a payment processing platform that allows you to accept payments from multiple cryptocurrencies and fiat currencies.
Documentation 
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use super::{Plugin, Account, Address, PaymentOption, Transaction, Payment, Confirmation, Price};
use anyhow::Result;
use bigdecimal::BigDecimal;
use std::str::FromStr;

pub struct EthereumPlugin;

#[async_trait::async_trait]
impl Plugin for EthereumPlugin {
    fn currency(&self) -> &str { "ETH" }
    fn chain(&self) -> &str { "ETH" }
    fn decimals(&self) -> u8 { 18 }

    async fn build_signed_payment(&self, payment_option: &PaymentOption, mnemonic: &str) -> Result<Transaction> {
        // TODO: Implement Ethereum transaction signing using web3
        Ok(Transaction {
            txhex: "mock_eth_tx".into(),
            txid: Some("mock_eth_txid".into()),
            txkey: None,
        })
    }

    async fn verify_payment(&self, payment_option: &PaymentOption, transaction: &Transaction) -> Result<bool> {
        // TODO: Implement Ethereum transaction verification
        Ok(true)
    }

    async fn validate_address(&self, address: &str) -> Result<bool> {
        // TODO: Implement Ethereum address validation
        Ok(address.starts_with("0x") && address.len() == 42)
    }

    async fn get_transaction(&self, txid: &str) -> Result<Transaction> {
        // TODO: Implement Ethereum transaction fetching
        Ok(Transaction {
            txhex: "mock_eth_tx".into(),
            txid: Some(txid.to_string()),
            txkey: None,
        })
    }

    async fn broadcast_tx(&self, txhex: &str, txid: Option<&str>, _txkey: Option<&str>) -> Result<Transaction> {
        // TODO: Implement Ethereum transaction broadcasting
        Ok(Transaction {
            txhex: txhex.to_string(),
            txid: txid.map(String::from),
            txkey: None,
        })
    }

    async fn get_new_address(&self, _account: &Account, address: &Address) -> Result<String> {
        // TODO: Implement Ethereum address generation
        Ok(address.value.clone())
    }

    async fn transform_address(&self, address: &str) -> Result<String> {
        Ok(address.split(':').last().unwrap_or(address).to_string())
    }

    async fn get_confirmation(&self, _txid: &str) -> Result<Option<Confirmation>> {
        // TODO: Implement Ethereum confirmation checking
        Ok(Some(Confirmation {
            confirmations: 12,
            confirmed: true,
        }))
    }

    async fn get_payments(&self, txid: &str) -> Result<Vec<Payment>> {
        // TODO: Implement Ethereum payment parsing
        Ok(vec![Payment {
            chain: self.chain().to_string(),
            currency: self.currency().to_string(),
            address: "0xmock_eth_address".to_string(),
            amount: 1000000000000000000, // 1 ETH
            txid: txid.to_string(),
        }])
    }

    async fn parse_payments(&self, transaction: &Transaction) -> Result<Vec<Payment>> {
        // TODO: Implement Ethereum transaction parsing
        Ok(vec![])
    }

    async fn get_price(&self) -> Result<Price> {
        // TODO: Implement price fetching from exchange
        Ok(Price {
            currency: self.currency().to_string(),
            price: BigDecimal::from_str("2000.00")?,
            timestamp: chrono::Utc::now().timestamp(),
        })
    }
}