fix: streamline txid handling

components/chainhook-sdk/src/chainhooks/bitcoin/mod.rs

@@ -180,7 +180,7 @@ pub fn serialize_bitcoin_transactions_to_json<'a>(
                         .iter()
                         .map(|input| {
                             json!({
-                                "txin": format!("0x{}", input.previous_output.txid),
+                                "txin": input.previous_output.txid.hash.to_string(),
                                 "vout": input.previous_output.vout,
                                 "sequence": input.sequence,
                             })
@@ -366,7 +366,7 @@ impl BitcoinPredicateType {
             BitcoinPredicateType::Inputs(InputPredicate::Txid(predicate)) => {
                 // TODO(lgalabru): add support for transaction chainhing, if enabled
                 for input in tx.metadata.inputs.iter() {
-                    if input.previous_output.txid.eq(&predicate.txid)
+                    if input.previous_output.txid.hash.eq(&predicate.txid)
                         && input.previous_output.vout.eq(&predicate.vout)
                     {
                         return true;

components/chainhook-sdk/src/hord/db/mod.rs

@@ -949,9 +949,7 @@ pub fn format_satpoint_to_watch(
 
 pub fn parse_satpoint_to_watch(outpoint_to_watch: &str) -> (TransactionIdentifier, usize, u64) {
     let comps: Vec<&str> = outpoint_to_watch.split(":").collect();
-    let tx = TransactionIdentifier {
-        hash: format!("0x{}", comps[0]),
-    };
+    let tx = TransactionIdentifier::new(comps[0]);
     let output_index = comps[1].to_string().parse::<usize>().unwrap();
     let offset = comps[2].to_string().parse::<u64>().unwrap();
     (tx, output_index, offset)
@@ -970,18 +968,14 @@ pub fn format_outpoint_to_watch(
 
 pub fn parse_inscription_id(inscription_id: &str) -> (TransactionIdentifier, usize) {
     let comps: Vec<&str> = inscription_id.split("i").collect();
-    let tx = TransactionIdentifier {
-        hash: format!("0x{}", comps[0]),
-    };
+    let tx = TransactionIdentifier::new(&comps[0]);
     let output_index = comps[1].to_string().parse::<usize>().unwrap();
     (tx, output_index)
 }
 
 pub fn parse_outpoint_to_watch(outpoint_to_watch: &str) -> (TransactionIdentifier, usize) {
     let comps: Vec<&str> = outpoint_to_watch.split(":").collect();
-    let tx = TransactionIdentifier {
-        hash: format!("0x{}", comps[0]),
-    };
+    let tx = TransactionIdentifier::new(&comps[0]);
     let output_index = comps[1].to_string().parse::<usize>().unwrap();
     (tx, output_index)
 }
@@ -1552,12 +1546,7 @@ impl LazyBlock {
             // For each transaction input:
             for input in tx.metadata.inputs.iter() {
                 // txin - 8 first bytes
-                let txin = {
-                    let txid = hex::decode(&input.previous_output.txid[2..]).unwrap();
-                    [
-                        txid[0], txid[1], txid[2], txid[3], txid[4], txid[5], txid[6], txid[7],
-                    ]
-                };
+                let txin = input.previous_output.txid.get_8_hash_bytes();
                 buffer.write_all(&txin)?;
                 // txin's block height
                 let block_height = input.previous_output.block_height as u32;

components/chainhook-sdk/src/hord/mod.rs

@@ -41,9 +41,9 @@ use crate::{
 
 use self::db::{
     find_inscription_with_id, find_latest_cursed_inscription_number_at_block_height,
-    find_latest_inscription_number_at_block_height, parse_satpoint_to_watch,
-    remove_entry_from_blocks, remove_entry_from_inscriptions, LazyBlock, LazyBlockTransaction,
-    TraversalResult, WatchedSatpoint,
+    find_latest_inscription_number_at_block_height, format_satpoint_to_watch,
+    parse_satpoint_to_watch, remove_entry_from_blocks, remove_entry_from_inscriptions, LazyBlock,
+    LazyBlockTransaction, TraversalResult, WatchedSatpoint,
 };
 use self::inscription::InscriptionParser;
 use self::ord::inscription_id::InscriptionId;
@@ -482,11 +482,10 @@ pub fn update_storage_and_augment_bitcoin_block_with_inscription_reveal_data(
             inscription.inscription_number = traversal.inscription_number;
             inscription.transfers_pre_inscription = traversal.transfers;
             inscription.inscription_fee = new_tx.metadata.fee;
-            inscription.satpoint_post_inscription = format!(
-                "{}:{}:{}",
-                traversal.transaction_identifier.hash,
+            inscription.satpoint_post_inscription = format_satpoint_to_watch(
+                &traversal.transaction_identifier,
                 traversal.output_index,
-                traversal.inscription_offset_intra_output
+                traversal.inscription_offset_intra_output,
             );
             if let Some(output) = new_tx.metadata.outputs.get(traversal.output_index) {
                 inscription.inscription_output_value = output.value;
@@ -642,10 +641,9 @@ pub fn update_storage_and_augment_bitcoin_block_with_inscription_transfer_data(
 
         for input in new_tx.metadata.inputs.iter() {
             // input.previous_output.txid
-            let outpoint_pre_transfer = format!(
-                "{}:{}",
-                &input.previous_output.txid[2..],
-                input.previous_output.vout
+            let outpoint_pre_transfer = format_outpoint_to_watch(
+                &input.previous_output.txid,
+                input.previous_output.vout as usize,
             );
 
             let entries = match storage {

components/chainhook-sdk/src/indexer/bitcoin/mod.rs

@@ -387,7 +387,7 @@ pub fn standardize_bitcoin_block(
             sats_in += prevout.value.to_sat();
             inputs.push(TxIn {
                 previous_output: OutPoint {
-                    txid: format!("0x{}", txid.to_string()),
+                    txid: TransactionIdentifier::new(&txid.to_string()),
                     vout,
                     block_height: prevout.height,
                     value: prevout.value.to_sat(),

components/chainhook-types-rs/src/bitcoin.rs

@@ -1,3 +1,5 @@
+use crate::TransactionIdentifier;
+
 /// A transaction input, which defines old coins to be consumed
 #[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash, Serialize, Deserialize)]
 pub struct TxIn {
@@ -32,7 +34,7 @@ pub struct TxOut {
 #[derive(Clone, Debug, Eq, Hash, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
 pub struct OutPoint {
     /// The referenced transaction's txid.
-    pub txid: String,
+    pub txid: TransactionIdentifier,
     /// The index of the referenced output in its transaction's vout.
     pub vout: u32,
     /// The value of the referenced.

components/chainhook-types-rs/src/rosetta.rs

@@ -407,14 +407,24 @@ pub struct LockSTXData {
 
 /// The transaction_identifier uniquely identifies a transaction in a particular
 /// network and block or in the mempool.
-#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize, Hash)]
+#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize, Hash, PartialOrd, Ord)]
 pub struct TransactionIdentifier {
     /// Any transactions that are attributable only to a block (ex: a block
     /// event) should use the hash of the block as the identifier.
     pub hash: String,
 }
 
 impl TransactionIdentifier {
+    pub fn new(txid: &str) -> Self {
+        let lowercased_txid = txid.to_lowercase();
+        Self {
+            hash: match lowercased_txid.starts_with("0x") {
+                true => lowercased_txid,
+                false => format!("0x{}", lowercased_txid),
+            },
+        }
+    }
+
     pub fn get_hash_bytes_str(&self) -> &str {
         &self.hash[2..]
     }