use alkanes_runtime::{declare_alkane, message::MessageDispatch, runtime::AlkaneResponder};
use alkanes_support::response::CallResponse;

#[derive(Default)]
pub struct Token;

#[derive(MessageDispatch)]
enum TokenMessage {
    #[opcode(0)]
    Initialize,
    #[opcode(77)]
    Exchange,
    #[opcode(103)]
    GetSigner,
}

impl AlkaneResponder for Token {}

declare_alkane!(Token, TokenMessage);

ICO — Alkanes Token Sale (Dual-Payment + Treasury Split) · orddao

opcodes
  0  Initialize     owner ‖ cap ‖ founder ‖ price_btc ‖ price_diesel ‖ end_block ‖ treasury ‖ name ‖ symbol
  1  Buy            amount_u64_le — mints from the public-sale pool (cap − founder)
  3  CloseSale      owner sig — permanently ends the sale
  4  WithdrawDiesel owner sig — sweeps accrued DIESEL to the owner
  …  views: GetSold · GetCap · GetPriceBtc · GetTreasury · GetState

// BTC routes straight to your treasury — the contract never custodies it
let tx = self.transaction_object()?;
let paid: u64 = tx.output.iter()
    .filter(|o| o.script_pubkey.as_bytes() == treasury_spk)
    .map(|o| o.value.to_sat()).sum();
ensure!(paid >= amount * price_btc, "insufficient BTC to treasury");