[marketplace] fix tests

Fix tests based from two changes:
 - Addition of the Reservations module
 - ContractInteractions split into ClientInteractions and HostInteractions

codex/contracts/interactions/clientinteractions.nim

@@ -47,8 +47,8 @@ proc new*(_: type ClientInteractions,
   ClientInteractions.new("ws://localhost:8545", account)
 
 proc start*(self: ClientInteractions) {.async.} =
-  await self.purchasing.start()
   await procCall ContractInteractions(self).start()
+  await self.purchasing.start()
 
 proc stop*(self: ClientInteractions) {.async.} =
   await self.purchasing.stop()

codex/contracts/interactions/hostinteractions.nim

@@ -57,9 +57,9 @@ proc new*(_: type HostInteractions,
   HostInteractions.new("ws://localhost:8545", account, repo)
 
 method start*(self: HostInteractions) {.async.} =
+  await procCall ContractInteractions(self).start()
   await self.sales.start()
   await self.proving.start()
-  await procCall ContractInteractions(self).start()
 
 method stop*(self: HostInteractions) {.async.} =
   await self.sales.stop()

codex/contracts/interactions/interactions.nim

@@ -38,8 +38,8 @@ proc prepare*(
 
   return success((signer, deploy))
 
-method start*(interactions: ContractInteractions) {.async, base.} =
-  await interactions.clock.start()
+method start*(self: ContractInteractions) {.async, base.} =
+  await self.clock.start()
 
-method stop*(interactions: ContractInteractions) {.async, base.} =
-  await interactions.clock.stop()
+method stop*(self: ContractInteractions) {.async, base.} =
+  await self.clock.stop()

codex/node.nim

@@ -372,9 +372,16 @@ proc start*(node: CodexNodeRef) {.async.} =
     try:
       await contracts.start()
     except CatchableError as error:
-      error "Unable to start contract interactions: ", error=error.msg
+      error "Unable to start host contract interactions: ", error=error.msg
       node.contracts.host = HostInteractions.none
 
+  if contracts =? node.contracts.client:
+    try:
+      await contracts.start()
+    except CatchableError as error:
+      error "Unable to start client contract interactions: ", error=error.msg
+      node.contracts.client = ClientInteractions.none
+
   node.networkId = node.switch.peerInfo.peerId
   notice "Started codex node", id = $node.networkId, addrs = node.switch.peerInfo.addrs
 

codex/rest/api.nim

@@ -247,7 +247,10 @@ proc initRestApi*(node: CodexNodeRef, conf: CodexConf): RestRouter =
       without contracts =? node.contracts.host:
         return RestApiResponse.error(Http503, "Sales unavailable")
 
-      let json = %contracts.sales.available
+      without unused =? (await contracts.sales.reservations.unused), err:
+        return RestApiResponse.error(Http500, err.msg)
+
+      let json = %unused
       return RestApiResponse.response($json)
 
   router.rawApi(

codex/sales/reservations.nim

@@ -8,6 +8,7 @@
 ## those terms.
 
 import std/typetraits
+
 import pkg/chronos
 import pkg/chronicles
 import pkg/upraises
@@ -274,6 +275,18 @@ proc availabilities*(
   iter.next = next
   return success iter
 
+proc unused*(r: Reservations): Future[?!seq[Availability]] {.async.} =
+  var ret: seq[Availability] = @[]
+
+  without availabilities =? (await r.availabilities), err:
+    return failure(err)
+
+  for a in availabilities:
+    if availability =? (await a) and not availability.used:
+      ret.add availability
+
+  return success(ret)
+
 proc find*(
   self: Reservations,
   size, duration, minPrice: UInt256,