fixed time conversion

crates/uplc/src/tx/eval.rs

@@ -24,7 +24,7 @@ use super::{
 };
 
 fn slot_to_begin_posix_time(slot: u64, sc: &SlotConfig) -> u64 {
-    let ms_after_begin = slot * sc.slot_length;
+    let ms_after_begin = (slot - sc.zero_slot) * sc.slot_length;
     sc.zero_time + ms_after_begin
 }
 

crates/uplc/src/tx/script_context.rs

@@ -84,6 +84,7 @@ pub struct TimeRange {
 
 pub struct SlotConfig {
     pub slot_length: u64,
+    pub zero_slot: u64,
     pub zero_time: u64,
 }
 
@@ -91,7 +92,8 @@ impl Default for SlotConfig {
     fn default() -> Self {
         Self {
             slot_length: 1000,
-            zero_time: 1596491091,
+            zero_slot: 4492800,
+            zero_time: 1596059091000,
         }
     }
 }

crates/uplc/src/tx/tests.rs

@@ -42,6 +42,7 @@ fn test_eval() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -292,6 +293,7 @@ fn test_eval_1() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -561,6 +563,7 @@ fn test_eval_2() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -659,6 +662,7 @@ fn test_eval_3() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -925,6 +929,7 @@ fn test_eval_4() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -1006,6 +1011,7 @@ fn test_eval_5() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -1108,6 +1114,7 @@ fn test_eval_6() {
 
     let slot_config = SlotConfig {
         zero_time: 1596059091000, // Mainnet network
+        zero_slot: 4492800,
         slot_length: 1000,
     };
 
@@ -1211,6 +1218,7 @@ fn test_eval_7() {
 
     let slot_config = SlotConfig {
         zero_time: 1596059091000, // Mainnet network
+        zero_slot: 4492800,
         slot_length: 1000,
     };
 
@@ -1301,6 +1309,7 @@ fn test_eval_8() {
 
     let slot_config = SlotConfig {
         zero_time: 1596059091000, // Mainnet network
+        zero_slot: 4492800,
         slot_length: 1000,
     };
 
@@ -1564,6 +1573,7 @@ fn eval_missing_redeemer() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };
 
@@ -1642,6 +1652,7 @@ fn eval_extraneous_redeemer() {
 
     let slot_config = SlotConfig {
         zero_time: 1660003200000, // Preview network
+        zero_slot: 0,
         slot_length: 1000,
     };