server: Add Block model

server/app/com/xsn/explorer/models/Block.scala

@@ -0,0 +1,60 @@
+package com.xsn.explorer.models
+
+import play.api.libs.functional.syntax._
+import play.api.libs.json._
+
+/**
+ * Represents a block coming from the RPC server.
+ *
+ * PoS blocks supported.
+ * Pending to support PoW and TPoS blocks.
+ */
+case class Block(
+    hash: Blockhash,
+    previousBlockhash: Blockhash,
+    nextBlockhash: Blockhash,
+    merkleRoot: Blockhash,
+    transactions: List[TransactionId],
+    confirmations: Confirmations,
+    size: Size,
+    height: Height,
+    version: Int,
+    time: Long,
+    medianTime: Long,
+    nonce: Int,
+    bits: String,
+    chainwork: String,
+    difficulty: BigDecimal
+)
+
+object Block {
+  implicit val reads: Reads[Block] = {
+    val builder = (__ \ 'hash).read[Blockhash] and
+        (__ \ 'previousblockhash).read[Blockhash] and
+        (__ \ 'nextblockhash).read[Blockhash] and
+        (__ \ 'merkleroot).read[Blockhash] and
+        (__ \ 'tx).read[List[TransactionId]] and
+        (__ \ 'confirmations).read[Confirmations] and
+        (__ \ 'size).read[Size] and
+        (__ \ 'height).read[Height] and
+        (__ \ 'version).read[Int] and
+        (__ \ 'time).read[Long] and
+        (__ \ 'mediantime).read[Long] and
+        (__ \ 'nonce).read[Int] and
+        (__ \ 'bits).read[String] and
+        (__ \ 'chainwork).read[String] and
+        (__ \ 'difficulty).read[BigDecimal]
+
+    builder.apply { (hash, previous, next, root, transactions,
+        confirmations, size, height, version, time,
+        medianTime, nonce, bits, chainwork, difficulty) =>
+
+      Block(
+        hash, previous, next, root, transactions,
+        confirmations, size, height, version, time,
+        medianTime, nonce, bits, chainwork, difficulty)
+    }
+  }
+
+  implicit val writes: Writes[Block] = Json.writes[Block]
+}

server/app/com/xsn/explorer/models/Height.scala

@@ -0,0 +1,11 @@
+package com.xsn.explorer.models
+
+import com.xsn.explorer.models.base.WrappedInt
+import play.api.libs.json.{JsPath, Reads}
+
+case class Height(int: Int) extends AnyVal with WrappedInt
+
+object Height {
+
+  implicit val reads: Reads[Height] = JsPath.read[Int].map(Height.apply)
+}