temporarily replace import with code from raito utils hex

.github/workflows/contracts.yml

@@ -5,26 +5,27 @@ on: [push, pull_request]
 permissions: read-all
 
 jobs:
-  fmt:
+  test:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@main
 
       - name: Set up Scarb
         uses: software-mansion/setup-scarb@v1
         with:
           scarb-version: "2.9.2"
 
-      - name: Check cairo format
-        run: scarb fmt --check
-        working-directory: packages/onchain
+      - name: Set up SNForge
+        uses: foundry-rs/setup-snfoundry@v3
+        with:
+          starknet-foundry-version: "0.36.0"
 
-      - name: Build cairo onchain
-        run: scarb build
+      - name: Run tests and generate report
+        run: snforge test
         working-directory: packages/onchain
-
-  test:
+  
+  fmt:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
@@ -35,11 +36,11 @@ jobs:
         with:
           scarb-version: "2.9.2"
 
-      - name: Set up SNForge
-        uses: foundry-rs/setup-snfoundry@v3
-        with:
-          starknet-foundry-version: "0.36.0"
+      - name: Check cairo format
+        run: scarb fmt --check
+        working-directory: packages/onchain
+
+      - name: Build cairo onchain
+        run: scarb build
+        working-directory: packages/onchain
 
-      - name: Run tests and generate report
-        run: snforge test
-        working-directory: packages/onchain

packages/onchain/src/broly_utils/taproot_utils.cairo

@@ -62,3 +62,64 @@ pub fn extract_p2tr_tweaked_pubkey(script: Array<u8>) -> ByteArray {
     let hrp = "bc";
     return encode(@hrp, @tweaked_pubkey, 90);
 }
+
+// TODO: remove the functions below, import failed, but they are from 
+// https://github.com/keep-starknet-strange/raito/blob/main/packages/utils/src/hex.cairo
+// Gets `Digest` from reversed `ByteArray`.
+pub fn hex_to_hash_rev(hex_string: ByteArray) -> Digest {
+    let mut result: Array<u32> = array![];
+    let mut i = 0;
+    let mut unit: u32 = 0;
+    let len = hex_string.len();
+    while i != len {
+        if (i != 0 && i % 8 == 0) {
+            result.append(unit);
+            unit = 0;
+        }
+        let hi = hex_char_to_nibble(hex_string[len - i - 2]);
+        let lo = hex_char_to_nibble(hex_string[len - i - 1]);
+        unit = (unit * 256) + (hi * 16 + lo).into();
+        i += 2;
+    };
+    result.append(unit);
+
+    Digest {
+        value: [
+            *result[0], *result[1], *result[2], *result[3], *result[4], *result[5], *result[6],
+            *result[7],
+        ],
+    }
+}
+
+/// Converts bytes to hex (base16).
+pub fn to_hex(data: @ByteArray) -> ByteArray {
+    let alphabet: @ByteArray = @"0123456789abcdef";
+    let mut result: ByteArray = Default::default();
+
+    let mut i = 0;
+    while i != data.len() {
+        let value: u32 = data[i].into();
+        let (l, r) = core::traits::DivRem::div_rem(value, 16);
+        result.append_byte(alphabet.at(l).unwrap());
+        result.append_byte(alphabet.at(r).unwrap());
+        i += 1;
+    };
+
+    result
+}
+
+pub fn hex_char_to_nibble(hex_char: u8) -> u8 {
+    if hex_char >= 48 && hex_char <= 57 {
+        // 0-9
+        hex_char - 48
+    } else if hex_char >= 65 && hex_char <= 70 {
+        // A-F
+        hex_char - 55
+    } else if hex_char >= 97 && hex_char <= 102 {
+        // a-f
+        hex_char - 87
+    } else {
+        panic!("Invalid hex character: {hex_char}");
+        0
+    }
+}

packages/onchain/src/orderbook/orderbook.cairo

@@ -6,7 +6,7 @@ mod Orderbook {
     use core::array::{ToSpanTrait, SpanTrait};
     use consensus::{types::transaction::Transaction};
     use onchain::orderbook::interface::Status;
-    use onchain::broly_utils::taproot_utils::extract_p2tr_tweaked_pubkey;
+    use onchain::broly_utils::taproot_utils::{extract_p2tr_tweaked_pubkey, hex_to_hash_rev, to_hex};
     use openzeppelin::utils::serde::SerializedAppend;
     use openzeppelin_token::erc20::{ERC20ABIDispatcher, ERC20ABIDispatcherTrait};
     use starknet::storage::{
@@ -16,7 +16,6 @@ mod Orderbook {
     use starknet::{ContractAddress, get_caller_address, get_contract_address, get_block_number};
     use starknet::{SyscallResultTrait, syscalls::call_contract_syscall};
     use utils::hash::Digest;
-    use utils::hex::{hex_to_hash_rev, to_hex};
     use utu_relay::bitcoin::block::{BlockHeader, BlockHashImpl, BlockHashTrait};
     use utu_relay::interfaces::HeightProof;