Refactor constants (#26)

* make constants configuable

* finish refactoring

.swiftformat

@@ -0,0 +1,2 @@
+--extensionacl on-declarations
+--maxwidth 150

.swiftlint.yml

@@ -2,9 +2,17 @@ disabled_rules:
     - trailing_comma
     - todo
     - large_tuple
+    - file_length
+    - nesting
+    - opening_brace
 
 excluded:
     - "**/.build"
 
 identifier_name:
     min_length: 1
+
+line_length:
+    warning: 140
+    error: 140
+    ignores_function_declarations: true

Blockchain/Sources/Blockchain/BlockAuthor.swift

@@ -0,0 +1 @@
+public class BlockAuthor {}

Blockchain/Sources/Blockchain/Blockchain.swift

@@ -39,12 +39,12 @@ public class Blockchain {
     }
 }
 
-public extension Blockchain {
-    subscript(hash: H256) -> StateRef? {
+extension Blockchain {
+    public subscript(hash: H256) -> StateRef? {
         stateByBlockHash[hash]
     }
 
-    subscript(index: TimeslotIndex) -> [StateRef]? {
+    public subscript(index: TimeslotIndex) -> [StateRef]? {
         stateByTimeslot[index]
     }
 }

Blockchain/Sources/Blockchain/Config/ProtocolConfig+Preset.swift

@@ -0,0 +1,78 @@
+import Utils
+
+extension Ref where T == ProtocolConfig {
+    // TODO: pick some good numbers for dev env
+    public static let dev = Ref(ProtocolConfig(
+        auditTranchePeriod: 8,
+        additionalMinBalancePerStateItem: 10,
+        additionalMinBalancePerStateByte: 1,
+        serviceMinBalance: 100,
+        totalNumberOfCores: 341,
+        preimagePurgePeriod: 28800,
+        epochLength: 600,
+        auditBiasFactor: 2,
+        coreAccumulationGas: 10_000_000, // TODO: check this
+        workPackageAuthorizerGas: 10_000_000, // TODO: check this
+        workPackageRefineGas: 10_000_000, // TODO: check this
+        recentHistorySize: 8,
+        maxWorkItems: 4,
+        maxTicketsPerExtrinsic: 16,
+        maxLookupAnchorAge: 14400,
+        transferMemoSize: 128,
+        ticketEntriesPerValidator: 2,
+        maxAuthorizationsPoolItems: 8,
+        slotPeriodSeconds: 6,
+        maxAuthorizationsQueueItems: 80,
+        coreAssignmentRotationPeriod: 10,
+        maxServiceCodeSize: 4_000_000,
+        preimageReplacementPeriod: 5,
+        totalNumberOfValidators: 1023,
+        erasureCodedPieceSize: 684,
+        maxWorkPackageManifestEntries: 1 << 11,
+        maxEncodedWorkPackageSize: 12 * 1 << 20,
+        maxEncodedWorkReportSize: 96 * 1 << 10,
+        erasureCodedSegmentSize: 6,
+        ticketSubmissionEndSlot: 500,
+        pvmDynamicAddressAlignmentFactor: 4,
+        pvmProgramInitInputDataSize: 1 << 24,
+        pvmProgramInitPageSize: 1 << 14,
+        pvmProgramInitSegmentSize: 1 << 16
+    ))
+
+    public static let mainnet = Ref(ProtocolConfig(
+        auditTranchePeriod: 8,
+        additionalMinBalancePerStateItem: 10,
+        additionalMinBalancePerStateByte: 1,
+        serviceMinBalance: 100,
+        totalNumberOfCores: 341,
+        preimagePurgePeriod: 28800,
+        epochLength: 600,
+        auditBiasFactor: 2,
+        coreAccumulationGas: 10_000_000, // TODO: check this
+        workPackageAuthorizerGas: 10_000_000, // TODO: check this
+        workPackageRefineGas: 10_000_000, // TODO: check this
+        recentHistorySize: 8,
+        maxWorkItems: 4,
+        maxTicketsPerExtrinsic: 16,
+        maxLookupAnchorAge: 14400,
+        transferMemoSize: 128,
+        ticketEntriesPerValidator: 2,
+        maxAuthorizationsPoolItems: 8,
+        slotPeriodSeconds: 6,
+        maxAuthorizationsQueueItems: 80,
+        coreAssignmentRotationPeriod: 10,
+        maxServiceCodeSize: 4_000_000,
+        preimageReplacementPeriod: 5,
+        totalNumberOfValidators: 1023,
+        erasureCodedPieceSize: 684,
+        maxWorkPackageManifestEntries: 1 << 11,
+        maxEncodedWorkPackageSize: 12 * 1 << 20,
+        maxEncodedWorkReportSize: 96 * 1 << 10,
+        erasureCodedSegmentSize: 6,
+        ticketSubmissionEndSlot: 500,
+        pvmDynamicAddressAlignmentFactor: 4,
+        pvmProgramInitInputDataSize: 1 << 24,
+        pvmProgramInitPageSize: 1 << 14,
+        pvmProgramInitSegmentSize: 1 << 16
+    ))
+}