From 02b6285c1bdd7e4035e65763e983e9d691102688 Mon Sep 17 00:00:00 2001
From: James <james@prestwi.ch>
Date: Wed, 10 Dec 2025 12:13:32 -0500
Subject: [PATCH] feat: parmigiana

---
 Cargo.toml        |  6 +++---
 src/utils/calc.rs | 21 ++++++++++++++++-----
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index a2ef6ea..0df72c4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "init4-bin-base"
 
 description = "Internal utilities for binaries produced by the init4 team"
 keywords = ["init4", "bin", "base"]
-version = "0.18.1-rc.0"
+version = "0.18.0-rc.1"
 edition = "2021"
 rust-version = "1.85"
 authors = ["init4", "James Prestwich", "evalir"]
@@ -15,8 +15,8 @@ repository = "https://github.com/init4tech/bin-base"
 init4-from-env-derive =  "0.1.0"
 
 # Signet
-signet-constants = { version = "0.16.0-rc.0" }
-signet-tx-cache = { version = "0.16.0-rc.0", optional = true }
+signet-constants = { version = "0.16.0-rc.1" }
+signet-tx-cache = { version = "0.16.0-rc.1", optional = true }
 
 # alloy
 alloy = { version = "1.0.35", optional = true, default-features = false, features = ["std", "signer-local", "consensus", "network"] }
diff --git a/src/utils/calc.rs b/src/utils/calc.rs
index 97c1ba1..5cb5754 100644
--- a/src/utils/calc.rs
+++ b/src/utils/calc.rs
@@ -71,7 +71,7 @@ pub struct SlotCalculator {
 }
 
 impl SlotCalculator {
-    /// Creates a new slot calculator.
+    /// Create a new slot calculator.
     pub const fn new(start_timestamp: u64, slot_offset: usize, slot_duration: u64) -> Self {
         Self {
             start_timestamp,
@@ -80,7 +80,7 @@ impl SlotCalculator {
         }
     }
 
-    /// Creates a new slot calculator for Holesky.
+    /// Create a new slot calculator for Holesky.
     pub const fn holesky() -> Self {
         // begin slot calculation for Holesky from block number 1, slot number 2, timestamp 1695902424
         // because of a strange 324 second gap between block 0 and 1 which
@@ -92,7 +92,16 @@ impl SlotCalculator {
         }
     }
 
-    /// Creates a new slot calculator for Pecorino host network.
+    /// Create a new slot calculator for Parmigiana host network.
+    pub const fn parmigiana_host() -> Self {
+        Self {
+            start_timestamp: 1765226348,
+            slot_offset: 0,
+            slot_duration: 12,
+        }
+    }
+
+    /// Create a new slot calculator for Pecorino host network.
     pub const fn pecorino_host() -> Self {
         Self {
             start_timestamp: 1754584265,
@@ -101,7 +110,7 @@ impl SlotCalculator {
         }
     }
 
-    /// Creates a new slot calculator for Ethereum mainnet.
+    /// Create a new slot calculator for Ethereum mainnet.
     pub const fn mainnet() -> Self {
         Self {
             start_timestamp: 1663224179,
@@ -325,9 +334,11 @@ impl FromEnv for SlotCalculator {
 impl From<KnownChains> for SlotCalculator {
     fn from(value: KnownChains) -> Self {
         match value {
+            KnownChains::Mainnet => SlotCalculator::mainnet(),
+            KnownChains::Parmigiana => SlotCalculator::parmigiana_host(),
+            #[allow(deprecated)]
             KnownChains::Pecorino => SlotCalculator::pecorino_host(),
             KnownChains::Test => SlotCalculator::new(12, 0, 12),
-            KnownChains::Mainnet => SlotCalculator::mainnet(),
         }
     }
 }