ows-cli 1.3.0

use crate::commands::read_passphrase;
use crate::CliError;
use ows_core::ChainType;

/// Concrete WalletAccess backed by ows-lib.
struct OwsLibWallet {
    wallet_name: String,
    passphrase: String,
}

impl ows_pay::WalletAccess for OwsLibWallet {
    fn supported_chains(&self) -> Vec<ChainType> {
        if let Ok(info) = ows_lib::get_wallet(&self.wallet_name, None) {
            let mut chains = Vec::new();
            for acct in &info.accounts {
                let ns = acct.chain_id.split(':').next().unwrap_or("");
                if let Some(ct) = ChainType::from_namespace(ns) {
                    if !chains.contains(&ct) {
                        chains.push(ct);
                    }
                }
            }
            if chains.is_empty() {
                vec![ChainType::Evm]
            } else {
                chains
            }
        } else {
            vec![ChainType::Evm]
        }
    }

    fn account(&self, network: &str) -> Result<ows_pay::Account, ows_pay::PayError> {
        let info = ows_lib::get_wallet(&self.wallet_name, None).map_err(|e| {
            ows_pay::PayError::new(ows_pay::PayErrorCode::WalletNotFound, e.to_string())
        })?;
        let ns = network.split(':').next().unwrap_or("eip155");
        let acct = info
            .accounts
            .iter()
            .find(|a| a.chain_id.starts_with(&format!("{ns}:")))
            .ok_or_else(|| {
                ows_pay::PayError::new(
                    ows_pay::PayErrorCode::WalletNotFound,
                    format!("no {ns} account in wallet"),
                )
            })?;
        Ok(ows_pay::Account {
            address: acct.address.clone(),
        })
    }

    fn sign_payload(
        &self,
        scheme: &str,
        network: &str,
        payload: &str,
    ) -> Result<String, ows_pay::PayError> {
        match scheme {
            "exact" => {
                // EIP-712 typed data signing.
                // ows_lib::sign_typed_data accepts both names ("base") and CAIP-2 IDs.
                let result = ows_lib::sign_typed_data(
                    &self.wallet_name,
                    network,
                    payload,
                    Some(&self.passphrase),
                    None,
                    None,
                )
                .map_err(|e| {
                    ows_pay::PayError::new(ows_pay::PayErrorCode::SigningFailed, e.to_string())
                })?;
                Ok(format!("0x{}", result.signature))
            }
            other => Err(ows_pay::PayError::new(
                ows_pay::PayErrorCode::ProtocolUnknown,
                format!("unsupported payment scheme: {other}"),
            )),
        }
    }
}

/// `ows pay request <url> --wallet <name> [--method GET] [--body '{}']`
pub fn run(
    url: &str,
    wallet_name: &str,
    method: &str,
    body: Option<&str>,
    skip_passphrase: bool,
) -> Result<(), CliError> {
    let passphrase = if skip_passphrase {
        String::new()
    } else {
        read_passphrase().to_string()
    };

    let wallet = OwsLibWallet {
        wallet_name: wallet_name.to_string(),
        passphrase,
    };

    let rt =
        tokio::runtime::Runtime::new().map_err(|e| CliError::InvalidArgs(format!("tokio: {e}")))?;

    let result = rt.block_on(ows_pay::pay(&wallet, url, method, body))?;

    if result.status < 400 {
        if let Some(ref payment) = result.payment {
            if !payment.amount.is_empty() {
                eprintln!(
                    "Paid {} on {} via {}",
                    payment.amount, payment.network, result.protocol
                );
            } else {
                eprintln!("Paid via {}", result.protocol);
            }
        }
    } else {
        eprintln!("HTTP {}", result.status);
    }

    println!("{}", result.body);
    Ok(())
}

/// `ows pay discover [--query <search>] [--limit N] [--offset N]`
pub fn discover(
    query: Option<&str>,
    limit: Option<u64>,
    offset: Option<u64>,
) -> Result<(), CliError> {
    let rt =
        tokio::runtime::Runtime::new().map_err(|e| CliError::InvalidArgs(format!("tokio: {e}")))?;

    let result = rt.block_on(ows_pay::discover(query, limit, offset))?;

    if result.services.is_empty() {
        eprintln!("No services found.");
        return Ok(());
    }

    eprintln!(
        "Showing {}-{} of {} services:\n",
        result.offset + 1,
        result.offset + result.services.len() as u64,
        result.total,
    );
    for svc in &result.services {
        println!(
            "  {:>8}  {:<8}  {}",
            svc.price, svc.network, svc.description
        );
        println!("  {:>8}  {:8}  {}", "", "", svc.url);
        println!();
    }

    Ok(())
}