computer: indexes + rolling

crates/brk_query/src/impl/mining/block_fees.rs

@@ -1,5 +1,5 @@
 use brk_error::Result;
-use brk_types::{BlockFeesEntry, TimePeriod};
+use brk_types::{BlockFeesEntry, Height, Sats, TimePeriod};
 use vecdb::{ReadableVec, VecIndex};
 
 use super::day1_iter::Day1Iter;
@@ -15,19 +15,32 @@ impl Query {
 
         let iter = Day1Iter::new(computer, start, current_height.to_usize());
 
-        let fees_vec = &computer
-            .transactions
-            .fees
-            .fee
-            .sats
-            .day1
-            .average;
+        let cumulative = &computer.transactions.fees.fee.sum_cum.cumulative;
+        let first_height = &computer.indexes.day1.first_height;
 
         Ok(iter.collect(|di, ts, h| {
-            fees_vec.collect_one(di).map(|fee| BlockFeesEntry {
+            let h_start = first_height.collect_one(di)?;
+            let h_end = first_height
+                .collect_one(di + 1_usize)
+                .unwrap_or(Height::from(current_height.to_usize() + 1));
+            let block_count = h_end.to_usize() - h_start.to_usize();
+            if block_count == 0 {
+                return None;
+            }
+
+            let cum_end = cumulative.collect_one_at(h_end.to_usize() - 1)?;
+            let cum_start = if h_start.to_usize() > 0 {
+                cumulative.collect_one_at(h_start.to_usize() - 1).unwrap_or(Sats::ZERO)
+            } else {
+                Sats::ZERO
+            };
+            let daily_sum = cum_end - cum_start;
+            let avg_fees = Sats::from(*daily_sum / block_count as u64);
+
+            Some(BlockFeesEntry {
                 avg_height: h,
                 timestamp: ts,
-                avg_fees: fee,
+                avg_fees,
             })
         }))
     }