Merge pull request #181 from comit-network/dummy-payouts

cfd_protocol/src/interval.rs

@@ -6,7 +6,7 @@ use std::ops::RangeInclusive;
 mod digit_decomposition;
 
 /// Maximum supported BTC price in whole USD.
-const MAX_PRICE_DEC: u64 = (BASE as u64).pow(MAX_DIGITS as u32) - 1;
+pub const MAX_PRICE_DEC: u64 = (BASE as u64).pow(MAX_DIGITS as u32) - 1;
 
 /// Maximum number of binary digits for BTC price in whole USD.
 const MAX_DIGITS: usize = 20;

daemon/src/payout_curve.rs

@@ -1,13 +1,30 @@
 use crate::model::{Leverage, Usd};
 use anyhow::Result;
 use bdk::bitcoin;
+use cfd_protocol::interval::MAX_PRICE_DEC;
 use cfd_protocol::Payout;
 
 pub fn calculate(
-    _price: Usd,
+    price: Usd,
     _quantity: Usd,
-    _maker_payin: bitcoin::Amount,
-    (_taker_payin, _leverage): (bitcoin::Amount, Leverage),
+    maker_payin: bitcoin::Amount,
+    (taker_payin, _leverage): (bitcoin::Amount, Leverage),
 ) -> Result<Vec<Payout>> {
-    Ok(vec![])
+    let dollars = price.try_into_u64()?;
+    let payouts = vec![
+        Payout::new(
+            0..=(dollars - 10),
+            maker_payin + taker_payin,
+            bitcoin::Amount::ZERO,
+        )?,
+        Payout::new((dollars - 10)..=(dollars + 10), maker_payin, taker_payin)?,
+        Payout::new(
+            (dollars + 10)..=MAX_PRICE_DEC,
+            bitcoin::Amount::ZERO,
+            maker_payin + taker_payin,
+        )?,
+    ]
+    .concat();
+
+    Ok(payouts)
 }