storm dashboard API - closes #8203

app/controllers/Storm.scala

@@ -62,4 +62,16 @@ final class Storm(env: Env)(implicit mat: akka.stream.Materializer) extends Lila
         Ok(views.html.storm.dashboard(user, history, high))
       }
     }
+
+  def apiDashboardOf(username: String, days: Int) =
+    Open { implicit ctx =>
+      val userId = lila.user.User normalize username
+      if (days < 0 || days > 365) notFoundJson("Invalid days parameter")
+      else
+        ((days > 0) ?? env.storm.dayApi.apiHistory(userId, days)) zip env.storm.highApi.get(userId) map {
+          case (history, high) =>
+            Ok(env.storm.json.apiDashboard(high, history))
+        }
+
+    }
 }

conf/routes

@@ -113,6 +113,7 @@ GET   /storm                            controllers.Storm.home
 POST  /storm                            controllers.Storm.record
 GET   /storm/dashboard                  controllers.Storm.dashboard(page: Int ?= 1)
 GET   /storm/dashboard/:username        controllers.Storm.dashboardOf(username: String, page: Int ?= 1)
+GET   /api/storm/dashboard/:username    controllers.Storm.apiDashboardOf(username: String, days: Int ?= 30)
 
 # User Analysis
 GET   /analysis/help                   controllers.UserAnalysis.help

modules/storm/src/main/StormDay.scala

@@ -12,6 +12,7 @@ import lila.db.dsl._
 import lila.db.paginator.Adapter
 import lila.user.User
 import lila.user.UserRepo
+import reactivemongo.api.ReadPreference
 
 // stores data of the best run of the day
 // plus the number of runs
@@ -114,5 +115,12 @@ final class StormDayApi(coll: Coll, highApi: StormHighApi, userRepo: UserRepo, s
   def eraseAllFor(user: User) =
     coll.delete.one(idRegexFor(user.id)).void
 
+  def apiHistory(userId: User.ID, days: Int): Fu[List[StormDay]] =
+    coll
+      .find(idRegexFor(userId))
+      .sort($sort desc "_id")
+      .cursor[StormDay](ReadPreference.secondaryPreferred)
+      .list(days)
+
   private def idRegexFor(userId: User.ID) = $doc("_id" $startsWith s"${userId}:")
 }

modules/storm/src/main/StormJson.scala

@@ -4,10 +4,11 @@ import play.api.libs.json._
 
 import lila.common.Json._
 import lila.user.User
+import org.joda.time.format.DateTimeFormat
 
 final class StormJson(sign: StormSign) {
 
-  import StormJson.puzzleWrites
+  import StormJson._
 
   def apply(puzzles: List[StormPuzzle], user: Option[User]): JsObject = Json
     .obj(
@@ -35,12 +36,27 @@ final class StormJson(sign: StormSign) {
           "prev" -> nh.previous
         )
       })
+
+  def apiDashboard(high: StormHigh, days: List[StormDay]) = Json.obj(
+    "high" -> high,
+    "days" -> days
+  )
+
 }
 
 object StormJson {
 
   import lila.puzzle.JsonView.puzzleIdWrites
 
+  implicit val highWrites: OWrites[StormHigh] = Json.writes[StormHigh]
+
+  private val dateFormat = DateTimeFormat forPattern "Y/M/d"
+
+  implicit val dayIdWrites: Writes[StormDay.Id] = Writes { id =>
+    JsString(dateFormat print id.day.toDate)
+  }
+  implicit val dayWrites: OWrites[StormDay] = Json.writes[StormDay]
+
   implicit val puzzleWrites: OWrites[StormPuzzle] = OWrites { p =>
     Json.obj(
       "id"     -> p.id,