Initial commit

.gitignore

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+.gradle/
+build
+*.log

build.gradle.kts

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+val arrowVersion = "0.10.3"
+
+plugins {
+    id("org.jetbrains.kotlin.jvm") version "1.3.60"
+    application
+}
+
+repositories {
+    jcenter()
+    maven("https://dl.bintray.com/arrow-kt/arrow-kt/")
+}
+
+dependencies {
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+    implementation("io.arrow-kt:arrow-core:$arrowVersion")
+    implementation("io.arrow-kt:arrow-fx:$arrowVersion")
+}
+
+application {
+    mainClassName = "moe.kageru.spektacle.SpektacleKt"
+}

settings.gradle.kts

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+rootProject.name = "advent-of-code"

src/main/kotlin/moe/kageru/spektacles/IoHandler.kt

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+package moe.kageru.spektacles
+
+import java.io.File
+
+object IoHandler {
+  fun readFile(name: String): Lines = File(name).readLines().asSequence()
+      .filter { it.isNotBlank() }
+      .filter { !it.startsWith("****") }
+}
+
+typealias Lines = Sequence<String>

src/main/kotlin/moe/kageru/spektacles/ParsedLine.kt

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+package moe.kageru.spektacles
+
+import arrow.core.Option
+import arrow.core.toOption
+import java.time.LocalDateTime
+
+class ParsedLine(val time: LocalDateTime,
+                 val user: Option<String>,
+                 val userMode: Option<UserMode>,
+                 val message: String,
+                 val isSystemMessage: Boolean,
+                 private val originalMessage: String
+) {
+  override fun toString() = originalMessage
+
+  companion object {
+    // 18 04 26 19:40:47 <kageru_>     Hi
+    private val lineRegex = Regex("""(?<year>\d\d)\s(?<month>\d\d)\s(?<day>\d\d)\s(?<hour>\d\d):(?<minute>\d\d):(?<second>\d\d)\s(<(?<mode>[~&@%+])?(?<author>\w+)>\t)?(?<message>.*)""")
+
+    fun parse(line: String): ParsedLine? = lineRegex
+        .matchEntire(line)
+        ?.let {
+          ParsedLine(
+              LocalDateTime.of(
+                  it.groups["year"]!!.value.toInt(),
+                  it.groups["month"]!!.value.toInt(),
+                  it.groups["day"]!!.value.toInt(),
+                  it.groups["hour"]!!.value.toInt(),
+                  it.groups["minute"]!!.value.toInt(),
+                  it.groups["second"]!!.value.toInt()
+              ),
+              it.groups["author"]?.value.toOption(),
+              it.groups["mode"]?.value?.let { UserMode.values().first { mode -> mode.icon == it } }.toOption(),
+              it.groups["message"]!!.value,
+              it.groups["author"] == null,
+              it.value
+          )
+        }
+  }
+}
+
+enum class UserMode(val icon: String) {
+  ADMIN("~"),
+  BOT("&"),
+  OP("@"),
+  HOP("%"),
+  VOICE("+");
+}

src/main/kotlin/moe/kageru/spektacles/Spektacles.kt

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+package moe.kageru.spektacles
+
+import kotlin.system.measureTimeMillis
+
+
+fun main() {
+  val res = measureTimeMillis {
+    IoHandler.readFile("test.log")
+        .map { ParsedLine.parse(it) }
+        .filterNotNull()
+        .filter { line -> line.user.exists { it == "kageru_" } }
+        .flatMap { it.message.split(' ').asSequence() }
+        //.flatMap { it.message.split(' ').k() }
+        //.toCounter()
+    //.counts["selphyDango"]
+  }
+  println(res)
+}
+
+class Counter<T>(source: Iterable<T>) : Iterable<T> {
+  val counts = mutableMapOf<T, Int>().apply {
+    for (element in source) {
+      this[element] = this.getOrDefault(element, 0) + 1
+    }
+  }
+
+  override fun iterator(): Iterator<T> {
+    return counts.keys.iterator()
+  }
+}
+
+fun <T> Iterable<T>.toCounter(): Counter<T> = Counter(this)