initialize

src/state/bus.rs

@@ -0,0 +1,20 @@
+use bytemuck::{Pod, Zeroable};
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct Bus {
+    /// The bump of the bus account PDA.
+    pub bump: u32,
+
+    /// The ID of the bus account.
+    pub id: u32,
+
+    /// The quantity of rewards this bus can issue in the current epoch epoch.
+    pub available_rewards: u64,
+}
+
+impl Bus {
+    pub fn to_bytes(&self) -> &[u8] {
+        bytemuck::bytes_of(self)
+    }
+}

src/state/hash.rs

@@ -0,0 +1,20 @@
+use std::mem::transmute;
+
+use bytemuck::{Pod, Zeroable};
+use solana_program::keccak::{Hash as KeccakHash, HASH_BYTES};
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct Hash(pub [u8; HASH_BYTES]);
+
+impl From<KeccakHash> for Hash {
+    fn from(value: KeccakHash) -> Self {
+        unsafe { transmute(value) }
+    }
+}
+
+impl From<Hash> for KeccakHash {
+    fn from(value: Hash) -> Self {
+        unsafe { transmute(value) }
+    }
+}

src/state/mod.rs

@@ -0,0 +1,7 @@
+mod bus;
+mod hash;
+mod treasury;
+
+pub use bus::*;
+pub use hash::*;
+pub use treasury::*;

src/state/treasury.rs

@@ -0,0 +1,32 @@
+use bytemuck::{Pod, Zeroable};
+use solana_program::pubkey::Pubkey;
+
+use super::Hash;
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct Treasury {
+    /// The bump of the treasury account PDA.
+    pub bump: u64,
+
+    /// The admin authority with permission to update the difficulty.
+    pub admin: Pubkey,
+
+    /// The hash difficulty.
+    pub difficulty: Hash,
+
+    /// The timestamp of the start of the current epoch.
+    pub epoch_start_at: i64,
+
+    /// The reward rate to payout to miners for submiting valid hashes.
+    pub reward_rate: u64,
+
+    /// The total lifetime claimed rewards.
+    pub total_claimed_rewards: u64,
+}
+
+impl Treasury {
+    pub fn to_bytes(&self) -> &[u8] {
+        bytemuck::bytes_of(self)
+    }
+}