workspace: reorg

iterator/src/blk_recap.rs

@@ -0,0 +1,47 @@
+use std::path::PathBuf;
+
+use bitcoin::{hashes::Hash, BlockHash};
+use serde::{Deserialize, Serialize};
+
+use crate::{path_to_modified_time, BlkMetadataAndBlock};
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub struct BlkRecap {
+    min_continuous_height: usize,
+    min_continuous_prev_hash: BlockHash,
+    modified_time: u64,
+}
+
+impl BlkRecap {
+    pub fn first(blk_metadata_and_block: &BlkMetadataAndBlock) -> Self {
+        Self {
+            min_continuous_height: 0,
+            min_continuous_prev_hash: BlockHash::all_zeros(),
+            modified_time: blk_metadata_and_block.blk_metadata.modified_time,
+        }
+    }
+
+    pub fn from(height: usize, blk_metadata_and_block: &BlkMetadataAndBlock) -> Self {
+        Self {
+            min_continuous_height: height,
+            min_continuous_prev_hash: blk_metadata_and_block.block.header.prev_blockhash,
+            modified_time: blk_metadata_and_block.blk_metadata.modified_time,
+        }
+    }
+
+    pub fn has_different_modified_time(&self, blk_path: &PathBuf) -> bool {
+        self.modified_time != path_to_modified_time(blk_path)
+    }
+
+    pub fn is_younger_than(&self, height: usize) -> bool {
+        self.min_continuous_height > height
+    }
+
+    pub fn height(&self) -> usize {
+        self.min_continuous_height
+    }
+
+    pub fn prev_hash(&self) -> &BlockHash {
+        &self.min_continuous_prev_hash
+    }
+}