Implement fetching blocks data

apps/remix-ide/src/blockchain/execution-context.js

@@ -210,15 +210,20 @@ export class ExecutionContext {
     // TODO: this won't save the state for transactions executed outside of the UI (for instance from a script execution).
     const root = await this.web3().remix.getStateTrieRoot()
     const db = await this.web3().remix.getStateDb()
+    const blocksData = await this.web3().remix.getBlocksData()
     const state = {
       root,
-      db: Object.fromEntries(db._database)
+      db: Object.fromEntries(db._database),
+      blocks: blocksData.blocks,
+      latestBlockNumber: blocksData.latestBlockNumber
     }
     const stringifyed = JSON.stringify(state, (key, value) => {
       if (key === 'root') {
         return bufferToHex(value)
       } else if (key === 'db') {
         return value
+      } else if (key === 'blocks') {
+        return value.map(block => bufferToHex(block))
       }else if (key === '') {
         return value           
       }

libs/remix-lib/src/execution/txRunnerVM.ts

@@ -37,7 +37,7 @@ export class TxRunnerVM {
     // has a default for now for backwards compatibility
     this.getVMObject = getVMObject
     this.commonContext = this.getVMObject().common
-    this.blockNumber = blockNumber || 0
+    this.blockNumber = blockNumber || 0 // TODO: this should be set to the fetched block number count
     this.pendingTxs = {}
     this.vmaccounts = vmaccounts
     this.queusTxs = []
@@ -125,7 +125,10 @@ export class TxRunnerVM {
         this.blockNumber = this.blockNumber + 1
         this.blockParentHash = block.hash()
         this.runBlockInVm(tx, block, (err, result) => {
-          if (!err) this.getVMObject().vm.blockchain.putBlock(block)  // look at putBlock for saving blocks
+          if (!err) {
+            this.getVMObject().vm.blockchain.putBlock(block)
+            this.blocks.push(block.serialize())
+          }
           callback(err, result)
         })
       } else {

libs/remix-simulator/src/methods/transactions.ts

@@ -76,7 +76,8 @@ export class Transactions {
       eth_getHashFromTagBySimulator: this.eth_getHashFromTagBySimulator.bind(this),
       eth_registerCallId: this.eth_registerCallId.bind(this),
       eth_getStateTrieRoot: this.eth_getStateTrieRoot.bind(this),
-      eth_getStateDb: this.eth_getStateDb.bind(this)
+      eth_getStateDb: this.eth_getStateDb.bind(this),
+      eth_getBlocksData: this.eth_getBlocksData.bind(this)
     }
   }
 
@@ -208,6 +209,13 @@ export class Transactions {
     cb(null, this.vmContext.currentVm.stateManager.getDb())
   }
 
+  eth_getBlocksData (_, cb) {
+    cb(null, {
+      blocks: this.txRunnerVMInstance.blocks,
+      latestBlockNumber: this.txRunnerVMInstance.blockNumber
+    })
+  }
+
   eth_call (payload, cb) {
     // from might be lowercased address (web3)
     if (payload.params && payload.params.length > 0 && payload.params[0].from) {

libs/remix-simulator/src/provider.ts

@@ -195,4 +195,11 @@ class Web3TestPlugin extends Web3PluginBase {
       params: []
     })
   }
+
+  public getBlocksData() {
+    return this.requestManager.send({
+      method: 'eth_getBlocksData',
+      params: []
+    })
+  }
 }