Track aggregates and expose via API

app/src/main/kotlin/xyz/etztech/stonks/Api.kt

@@ -8,6 +8,7 @@ import kotlinx.serialization.*
 import kotlinx.serialization.json.Json
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.transactions.*
+import xyz.etztech.stonks.dsl.AggregateStatistics
 import xyz.etztech.stonks.dsl.LiveStatistics
 import xyz.etztech.stonks.dsl.Players
 import xyz.etztech.stonks.dsl.Statistics
@@ -173,6 +174,34 @@ fun initApiServer(apiServerPort: Int, database: Database) {
         }
     }
 
+    app.get("api/aggregates") { ctx ->
+        run {
+            transaction(database) {
+                addLogger(StdOutSqlLogger)
+
+                val maxValueExpr = AggregateStatistics.value.max()
+
+                val aggregates =
+                        AggregateStatistics.slice(
+                                        AggregateStatistics.type,
+                                        AggregateStatistics.name,
+                                        maxValueExpr
+                                )
+                                .selectAll()
+                                .groupBy(AggregateStatistics.type, AggregateStatistics.name)
+                                .map {
+                                    AggregateValue(
+                                            it[AggregateStatistics.type],
+                                            it[AggregateStatistics.name],
+                                            it[maxValueExpr]!!
+                                    )
+                                }
+
+                ctx.result(Json { prettyPrint = true }.encodeToString(aggregates))
+            }
+        }
+    }
+
     app.get("api/*") { ctx -> ctx.status(404) }
 
     println("Javalin web server started")
@@ -199,3 +228,13 @@ data class HistoricalStatisticValue(
         val timestamp: String,
         val value: Long
 )
+
+@Serializable data class AggregateValue(val type: String, val name: String, val value: Long)
+
+@Serializable
+data class HistoricalAggregateValue(
+        val type: String,
+        val name: String,
+        val timestamp: String,
+        val value: Long
+)

app/src/main/kotlin/xyz/etztech/stonks/App.kt

@@ -10,13 +10,13 @@ import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.transactions.TransactionManager
 import org.jetbrains.exposed.sql.transactions.transaction
 import xyz.etztech.stonks.api.initApiServer
+import xyz.etztech.stonks.dsl.AggregateStatistics
 import xyz.etztech.stonks.dsl.LiveStatistics
 import xyz.etztech.stonks.dsl.Players
 import xyz.etztech.stonks.dsl.Statistics
 import xyz.etztech.stonks.statisticsimporter.StatisticsImporter
 
-fun main() =
+fun main() = runBlocking {
-        runBlocking {
     println("Starting Stonks...")
 
     val fis = FileInputStream("./stonks.config")
@@ -39,7 +39,8 @@ fun main() =
                     databaseName,
                     h2TcpServerPort,
                     h2StartWebServer,
-                            h2tWebServerPort)
+                    h2tWebServerPort
+            )
 
     initApiServer(apiServerPort, database)
 
@@ -59,11 +60,20 @@ fun initH2Server(
 ): Database {
     val webServer =
             Server.createWebServer(
-                    "-trace", "-baseDir", databaseBaseDir, "-webPort", h2WebServerPort.toString())
+                    "-baseDir",
+                    databaseBaseDir,
+                    "-webPort",
+                    h2WebServerPort.toString()
+            )
 
     val tcpServer =
             Server.createTcpServer(
-                    "-trace", "-baseDir", databaseBaseDir, "-webPort", h2TcpServerPort.toString())
+                    "-trace",
+                    "-baseDir",
+                    databaseBaseDir,
+                    "-webPort",
+                    h2TcpServerPort.toString()
+            )
 
     if (h2StartWebServer) {
         webServer.start()
@@ -79,6 +89,7 @@ fun initH2Server(
         addLogger(StdOutSqlLogger)
         SchemaUtils.create(Statistics)
         SchemaUtils.create(LiveStatistics)
+        SchemaUtils.create(AggregateStatistics)
         SchemaUtils.create(Players)
 
         // Create indexes with explicit SQL because I can't figure out how to do it with exposed
@@ -107,8 +118,7 @@ fun initH2Server(
     return database
 }
 
-suspend fun initPeriodicFetching(interval: Long, folder: String, db: Database) =
+suspend fun initPeriodicFetching(interval: Long, folder: String, db: Database) = coroutineScope {
-        coroutineScope {
     launch {
         while (true) {
             StatisticsImporter.importStatistics(folder, db)

app/src/main/kotlin/xyz/etztech/stonks/DSL.kt

@@ -4,16 +4,6 @@ import java.time.Instant
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.`java-time`.timestamp
 
-object LiveStatistics : Table() {
-    val playerId: Column<String> = varchar("PlayerId", 150)
-    val type: Column<String> = varchar("Type", 150)
-    val name: Column<String> = varchar("Name", 150)
-    val value: Column<Long> = long("Value")
-    val rank: Column<Int> = integer("Rank")
-
-    override val primaryKey = PrimaryKey(playerId, type, name, name = "PK_playerId_type_name")
-}
-
 object Statistics : Table() {
     val playerId: Column<String> = varchar("PlayerId", 150)
     val type: Column<String> = varchar("Type", 150)
@@ -25,6 +15,25 @@ object Statistics : Table() {
             PrimaryKey(playerId, type, name, timestamp, name = "PK_playerId_type_name_timestamp")
 }
 
+object LiveStatistics : Table() {
+    val playerId: Column<String> = varchar("PlayerId", 150)
+    val type: Column<String> = varchar("Type", 150)
+    val name: Column<String> = varchar("Name", 150)
+    val value: Column<Long> = long("Value")
+    val rank: Column<Int> = integer("Rank")
+
+    override val primaryKey = PrimaryKey(playerId, type, name, name = "PK_playerId_type_name")
+}
+
+object AggregateStatistics : Table() {
+    val type: Column<String> = varchar("Type", 150)
+    val name: Column<String> = varchar("Name", 150)
+    val timestamp: Column<Instant> = timestamp("Timestamp")
+    val value: Column<Long> = long("Value")
+
+    override val primaryKey = PrimaryKey(type, name, timestamp, name = "PK_type_name_timestamp")
+}
+
 object Players : Table() {
     val id: Column<String> = varchar("Id", 150)
     val name: Column<String> = varchar("Name", 150)

app/src/main/kotlin/xyz/etztech/stonks/StatisticsImporter.kt

@@ -30,6 +30,8 @@ object StatisticsImporter {
         File(folder).listFiles().forEach { readFile(it, database) }
         println("Updating live statistics table...")
         updateLiveStatistics(database)
+        println("Updating aggregate statistics table...")
+        updateAggregateStatistics(database)
         println("Refreshing player names...")
         refreshPlayerNames(database)
     }
@@ -123,6 +125,42 @@ object StatisticsImporter {
         }
     }
 
+    fun updateAggregateStatistics(database: Database) {
+        transaction(database) {
+            TransactionManager.current()
+                    .exec(
+                            """
+                            SET @Timestamp = CURRENT_TIMESTAMP;
+
+                            INSERT INTO AGGREGATESTATISTICS ("Type", "Name", "Timestamp", "Value")
+                            SELECT Live."Type",
+                                   '',
+                                   @Timestamp AS "Timestamp",
+                                   sum(Live."Value")
+                            FROM LIVESTATISTICS as Live
+                                LEFT JOIN AGGREGATESTATISTICS as Agg
+                                    ON Live."Type" = Agg."Type"
+                            WHERE array_contains(array['minecraft:mined'], Live."Type")
+                            GROUP BY Live."Type"
+                            HAVING sum(Live."Value") <> max(Agg."Value");
+                            
+                            INSERT INTO AGGREGATESTATISTICS ("Type", "Name", "Timestamp", "Value")
+                            SELECT Live."Type",
+                                   Live."Name",
+                                   @Timestamp AS "Timestamp",
+                                   Sum(Live."Value")
+                            FROM livestatistics as Live
+                                LEFT JOIN AGGREGATESTATISTICS as Agg
+                                    ON Live."Type" = Agg."Type" AND Live."Name" = Agg."Name"
+                            WHERE array_contains(array['minecraft:animals_bred', 'minecraft:play_one_minute', 'minecraft:deaths', 'minecraft:player_kills', 'minecraft:aviate_one_cm', 'minecraft:boat_one_cm', 'minecraft:crouch_one_cm', 'minecraft:horse_one_cm', 'minecraft:minecart_one_cm', 'minecraft:sprint_one_cm', 'minecraft:strider_one_cm', 'minecraft:swim_one_cm', 'minecraft:walk_on_water_one_cm', 'minecraft:walk_one_cm', 'minecraft:walk_under_water_one_cm' ], Live."Name")
+OR array_contains(array['minecraft:killed', 'minecraft:killed_by'], Live."Type")
+                            GROUP BY Live."Type", Live."Name"
+                            HAVING sum(Live."Value") <> max(Agg."Value");
+                    """.trimIndent()
+                    )
+        }
+    }
+
     fun refreshPlayerNames(database: Database) {
         transaction(database) {
             addLogger(StdOutSqlLogger)