From 72d7ad5c155737dbc8d802c7013c570560e0c99e Mon Sep 17 00:00:00 2001
From: Esen Dzhailobaev <esen.dzhailobaev@toptal.com>
Date: Tue, 6 Jul 2021 16:35:02 +0600
Subject: [PATCH] feat(block): add block module

---
 src/block.ts | 42 ++++++++++++++++++++++++++++++++++++++++++
 src/index.ts |  3 ++-
 src/query.ts | 12 ++++++++++--
 3 files changed, 54 insertions(+), 3 deletions(-)
 create mode 100644 src/block.ts

diff --git a/src/block.ts b/src/block.ts
new file mode 100644
index 0000000..f921eb2
--- /dev/null
+++ b/src/block.ts
@@ -0,0 +1,42 @@
+import query, { RequestConfig, QueryParams } from './query'
+
+function getBlockAndUncleRewardsbyBlockNo(blockno: number, requestConfig?: RequestConfig) {
+  return query<string>(
+    {
+      blockno,
+      module: 'block',
+      action: 'getblockreward',
+    },
+    requestConfig
+  )
+}
+
+function getEstimatedBlockCountdownTimebyBlockNo(blockno: number, requestConfig?: RequestConfig) {
+  return query<string>(
+    {
+      blockno,
+      module: 'block',
+      action: 'getblockcountdown',
+    },
+    requestConfig
+  )
+}
+
+function getBlockNumberByTimestamp(timestamp: number, closest: QueryParams['closest'], requestConfig?: RequestConfig) {
+  return query<string>(
+    {
+      timestamp,
+      closest,
+      module: 'block',
+      action: 'getblocknobytime',
+    },
+    requestConfig
+  )
+}
+
+
+export default {
+  getBlockAndUncleRewardsbyBlockNo,
+  getEstimatedBlockCountdownTimebyBlockNo,
+  getBlockNumberByTimestamp
+}
diff --git a/src/index.ts b/src/index.ts
index 53f1f01..95b70c6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -3,7 +3,8 @@ import config from './config'
 import contract from './contract'
 import stats from './stats'
 import token from './token'
+import block from './block'
 
-export { account, contract, stats, token }
+export { account, contract, stats, token, block }
 
 export default config
diff --git a/src/query.ts b/src/query.ts
index f991941..8390dce 100644
--- a/src/query.ts
+++ b/src/query.ts
@@ -5,7 +5,7 @@ import qs from 'querystring'
 
 import config from './config'
 
-type Module = 'account' | 'contract' | 'stats'
+type Module = 'account' | 'contract' | 'stats' | 'block'
 
 type AccountAction = 'balance' | 'balancemulti' | 'txlist' | 'txlistinternal' | 'tokentx' | 'getminedblocks'
 
@@ -13,9 +13,11 @@ type ContractAction = 'getabi' | 'getsourcecode'
 
 type StatsAction = 'tokensupply' | 'tokenCsupply' | 'tokenbalance' | 'tokenbalancehistory' | 'bnbsupply' | 'validators'
 
+type BlockAction = 'getblockreward' | 'getblockcountdown' | 'getblocknobytime'
+
 export type QueryParams = {
   module: Module
-  action: AccountAction | ContractAction | StatsAction
+  action: AccountAction | ContractAction | StatsAction | BlockAction
   address?: string
   contractAddress?: string
   txhash?: string
@@ -27,6 +29,8 @@ export type QueryParams = {
   sort?: 'asc' | 'desc'
   tag?: string
   apiKey?: string
+  timestamp?: number
+  closest?: 'before' | 'after'
 }
 
 export type RequestConfig = {
@@ -53,6 +57,8 @@ async function query<T>(queryOptions: QueryParams, requestConfig?: RequestConfig
     offset = 10000,
     sort = 'asc',
     apiKey = config.apiKey,
+    closest,
+    timestamp
   } = queryOptions
 
   const queryParams = pickBy(
@@ -68,6 +74,8 @@ async function query<T>(queryOptions: QueryParams, requestConfig?: RequestConfig
       offset,
       sort,
       apiKey,
+      closest,
+      timestamp
     },
     identity
   )