refactor(model): Docs/indent/companion

app/src/main/java/fr/plnech/lifelogger/model/DataPoint.kt

@@ -20,9 +20,13 @@ package fr.plnech.lifelogger.model
 import java.util.*
 import kotlin.collections.HashMap
 
-private const val NONE: Int = Int.MIN_VALUE
-
-data class DataPoint(val date: Date = Date(), private val metadata: HashMap<String, Any> = HashMap()) {
+/**
+ * An event tracked with some associated metadata.
+ */
+data class DataPoint(
+    val date: Date = Date(),
+    private val metadata: HashMap<String, Any> = HashMap()
+) {
 
     constructor(name: String, count: Int = NONE) : this() {
         metadata["name"] = name
@@ -39,7 +43,11 @@ data class DataPoint(val date: Date = Date(), private val metadata: HashMap<Stri
 
     override fun toString(): String {
         val b = StringBuilder(name)
-        count?.let { b.append("($count)")}
+        count?.let { b.append("($count)") }
         return b.toString()
     }
+
+    companion object {
+        const val NONE: Int = Int.MIN_VALUE
+    }
 }
\ No newline at end of file

app/src/main/java/fr/plnech/lifelogger/model/Log.kt

@@ -17,7 +17,13 @@
 
 package fr.plnech.lifelogger.model
 
-class Log(val name: String, private val dataPoints : ArrayList<DataPoint> = ArrayList()) {
+/**
+ * A Log of events to track.
+ */
+class Log(
+    val name: String,
+    private val dataPoints: ArrayList<DataPoint> = ArrayList()
+) {
 
     fun addPoint(dataPoint: DataPoint) {
         dataPoints.add(dataPoint)
@@ -25,7 +31,7 @@ class Log(val name: String, private val dataPoints : ArrayList<DataPoint> = Arra
 
     override fun toString(): String {
         val b = StringBuilder("$name: ")
-        dataPoints.forEach({b.append(it).append(" | ")})
+        dataPoints.forEach({ b.append(it).append(" | ") })
         return b.removeSuffix("| ").toString()
     }
 }
\ No newline at end of file