From cb86c1052399738f1dd1d191dc844f649f3b8eb7 Mon Sep 17 00:00:00 2001
From: Rucknium <Rucknium@protonmail.com>
Date: Wed, 2 Mar 2022 15:10:50 +0000
Subject: [PATCH] Add get-coinbases.R

---
 .../R/get-coinbases.R                         | 124 ++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 CashFusion-Descendant-Analysis/R/get-coinbases.R

diff --git a/CashFusion-Descendant-Analysis/R/get-coinbases.R b/CashFusion-Descendant-Analysis/R/get-coinbases.R
new file mode 100644
index 0000000..3200cb5
--- /dev/null
+++ b/CashFusion-Descendant-Analysis/R/get-coinbases.R
@@ -0,0 +1,124 @@
+
+# install.packages("rbch")
+# install.packages("data.table")
+# install.packages("future.apply")
+# install.packages("stringr")
+
+library(rbch)
+library(data.table)
+library(future.apply)
+library(stringr)
+
+
+bitcoin.conf.file <- ""
+# Input filepath for your bitcoin.conf file
+
+data.dir <- ""
+# Input data directory here, with trailing "/"
+
+bch.config <- rbch::conrpc(bitcoin.conf.file)
+
+
+con <- DBI::dbConnect(RSQLite::SQLite(), paste0(data.dir, "tx-graph-node-indices.db"))
+
+
+# first.fusion.height <- 646085
+
+# current.block.height <- rbch::getblockchaininfo(bch.config)@result$blocks
+
+tx.graph.files <- list.files(data.dir)
+tx.graph.files <- tx.graph.files[grepl("^tx_graph.+rds$", tx.graph.files)]
+
+first.fusion.height <- min(as.numeric(unlist(stringr::str_extract_all(tx.graph.files, "[0-9]+"))))
+current.block.height <- max(as.numeric(unlist(stringr::str_extract_all(tx.graph.files, "[0-9]+"))))
+
+
+heights.to.process <- first.fusion.height:current.block.height
+heights.to.process <- split(heights.to.process, 
+  cut(heights.to.process, ceiling(length(heights.to.process)/50)))
+
+future::plan(future::multiprocess())
+
+coinbases <- list()
+
+for (height.set in heights.to.process) {
+  
+  fused.all.ls <- future.apply::future_lapply(height.set, function(iter.block.height) {
+    
+    if (iter.block.height %% 1000 == 0) {
+      cat(iter.block.height, base::date(), "\n")
+    }
+    
+    block.hash <- rbch::getblockhash(bch.config, iter.block.height)
+    block.data <- rbch::getblock(bch.config, blockhash = block.hash@result, verbosity = "l2")
+    # Argument verbose = 2 gives full transaction data
+    # For some reason it doesn't give the fee: 
+    # https://docs.bitcoincashnode.org/doc/json-rpc/getrawtransaction.html
+    
+    raw.txs.ls <- block.data@result$tx
+    
+    coinbase.tx <- raw.txs.ls[[1]]
+    
+    value <- vector("numeric", length(coinbase.tx$vout) )
+      
+    for (j in seq_along(coinbase.tx$vout)) { 
+      value[j] <- coinbase.tx$vout[[j]]$value
+    }
+    
+    outgoing <- data.table(txid = coinbase.tx$txid, 
+      position = seq_along(coinbase.tx$vout), value = value, stringsAsFactors = FALSE)
+    
+    list(outgoing)
+    
+  })
+  
+  
+  print(object.size(fused.all.ls), units = "Mb")
+  
+  fused.all.ls <- unlist(fused.all.ls, recursive = FALSE)
+  
+  outgoing <- data.table::rbindlist(fused.all.ls)
+  
+  coinbases[[length(coinbases) + 1]] <- outgoing
+  
+  rm(fused.all.ls)
+  rm(outgoing)
+  
+}
+
+
+coinbases <- data.table::rbindlist(coinbases)
+
+coinbases$txid_position <- paste0(coinbases$txid, "-", 
+  formatC(coinbases$position, width = 4, format = "f", flag = "0", digits = 0))
+
+
+DBI::dbWriteTable(con, "coinbases", coinbases, overwrite = TRUE)
+
+
+DBI::dbWriteTable(con, "coinbases_intermediate_1", 
+  data.frame(txid_position = character(0), stringsAsFactors = FALSE),
+  overwrite = TRUE)
+
+
+base::date()
+DBI::dbExecute(con, "INSERT INTO coinbases_intermediate_1 SELECT 
+  txid_position FROM
+  coinbases EXCEPT 
+  SELECT origin FROM edgelist")
+base::date()
+
+
+unspent.coinbases <- DBI::dbGetQuery(con, 
+  'SELECT * FROM coinbases_intermediate_1')
+
+unspent.coinbases <- merge(unspent.coinbases, coinbases)
+
+
+saveRDS(unspent.coinbases, 
+  file = paste0(data.dir, "unspent_coinbases.rds"), 
+  compress = FALSE)
+
+
+
+