From 10ff77477cf3163eaea5ac9485977d91bcc102c0 Mon Sep 17 00:00:00 2001
From: Dan Finlay <dan@danfinlay.com>
Date: Sun, 17 Dec 2017 16:36:03 -0800
Subject: Add Recent Blocks controller

Tracks recent blocks, useful for estimating recent successful gas
prices.
---
 app/scripts/controllers/recent-blocks.js | 37 ++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 app/scripts/controllers/recent-blocks.js

(limited to 'app/scripts/controllers/recent-blocks.js')

diff --git a/app/scripts/controllers/recent-blocks.js b/app/scripts/controllers/recent-blocks.js
new file mode 100644
index 000000000..27f9013ff
--- /dev/null
+++ b/app/scripts/controllers/recent-blocks.js
@@ -0,0 +1,37 @@
+const ObservableStore = require('obs-store')
+const extend = require('xtend')
+
+class RecentBlocksController {
+
+  constructor (opts = {}) {
+    const { blockTracker } = opts
+    this.blockTracker = blockTracker
+    this.historyLength = opts.historyLength || 40
+
+    const initState = extend({
+      recentBlocks: [],
+    }, opts.initState)
+    this.store = new ObservableStore(initState)
+
+    this.blockTracker.on('block', this.processBlock.bind(this))
+  }
+
+  resetState () {
+    this.store.updateState({
+      recentBlocks: [],
+    })
+  }
+
+  processBlock (newBlock) {
+    const state = this.store.getState()
+    state.recentBlocks.push(newBlock)
+
+    while (state.recentBlocks.length > this.historyLength) {
+      state.recentBlocks.shift()
+    }
+
+    this.store.updateState(state)
+  }
+}
+
+module.exports = RecentBlocksController
-- 
cgit v1.2.3


From 30b45c8a385e9ae4c6b78d0a7ec6929f7bad4d9a Mon Sep 17 00:00:00 2001
From: Dan Finlay <dan@danfinlay.com>
Date: Tue, 19 Dec 2017 12:22:48 -0800
Subject: Do not log whole txs in recent block controller.

Only record gas prices, because that has a current use.
---
 app/scripts/controllers/recent-blocks.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'app/scripts/controllers/recent-blocks.js')

diff --git a/app/scripts/controllers/recent-blocks.js b/app/scripts/controllers/recent-blocks.js
index 27f9013ff..4a906261e 100644
--- a/app/scripts/controllers/recent-blocks.js
+++ b/app/scripts/controllers/recent-blocks.js
@@ -23,8 +23,15 @@ class RecentBlocksController {
   }
 
   processBlock (newBlock) {
+    const block = extend(newBlock, {
+      gasPrices: newBlock.transactions.map((tx) => {
+        return tx.gasPrice
+      }),
+    })
+    delete block.transactions
+
     const state = this.store.getState()
-    state.recentBlocks.push(newBlock)
+    state.recentBlocks.push(block)
 
     while (state.recentBlocks.length > this.historyLength) {
       state.recentBlocks.shift()
-- 
cgit v1.2.3