Version 5

.github/workflows/build-testing.yaml

@@ -3,6 +3,9 @@ name: Build and push debug app
 on:
   pull_request:
 
+env:
+  JAVA_OPTS: -Xmx12G
+
 jobs:
   debug-builds:
     runs-on: ubuntu-latest

.github/workflows/release-app-github.yaml

@@ -4,6 +4,9 @@ on:
   release:
     types: [ published ]
 
+env:
+  JAVA_OPTS: -Xmx12G
+
 jobs:
   release-app-github:
     runs-on: ubuntu-latest

.github/workflows/release-app-google-play.yaml

@@ -4,6 +4,9 @@ on:
   release:
     types: [ published ]
 
+env:
+  JAVA_OPTS: -Xmx12G
+
 jobs:
   release-app-google-play:
     runs-on: ubuntu-latest

core/ui/src/main/java/app/myzel394/numberhub/core/ui/common/KeypadFlow.kt

@@ -25,7 +25,6 @@ import androidx.compose.foundation.layout.FlowRowScope
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 
 /**
@@ -51,8 +50,8 @@ fun KeypadFlow(
     @IntRange(0, 100) verticalPadding: Int = 10,
     content: @Composable FlowRowScope.(width: Float, height: Float) -> Unit,
 ) {
-    val height: Float = remember { (1f - verticalPadding / 100f) / rows }
-    val width: Float = remember { (1f - horizontalPadding / 100f) / columns }
+    val height: Float = (1f - verticalPadding / 100f) / rows
+    val width: Float = (1f - horizontalPadding / 100f) / columns
 
     FlowRow(
         modifier = modifier,

data/converter/src/main/java/app/myzel394/numberhub/data/converter/UnitsRepositoryImpl.kt

@@ -102,17 +102,232 @@ class UnitsRepositoryImpl @Inject constructor(
 
     suspend fun getPairId(id: String): String = withContext(Dispatchers.IO) {
         val basedUnitPair = getUnitStats(id).pairedUnitId
-        if (basedUnitPair != null) return@withContext basedUnitPair
+        if (basedUnitPair != null) {
+            return@withContext basedUnitPair
+        }
 
         val inMemoryUnit = inMemory.first { it.id == id }
         val collection = inMemory.filter { it.group == inMemoryUnit.group }
 
-        val pair = collection
-            .map { getById(it.id) to getUnitStats(it.id) }
-            .sortedByDescending { it.second.frequency }
-            .firstOrNull { it.second.isFavorite }?.first ?: collection.first()
-
-        return@withContext pair.id
+        return@withContext when (inMemoryUnit.id) {
+            // === === === Length === === ===
+            UnitID.nanometer -> UnitID.micrometer
+            UnitID.micrometer -> UnitID.millimeter
+            UnitID.millimeter -> UnitID.centimeter
+
+            UnitID.centimeter -> UnitID.inch
+            UnitID.inch -> UnitID.centimeter
+            UnitID.decimeter -> UnitID.centimeter
+            UnitID.foot -> UnitID.meter
+            UnitID.yard -> UnitID.meter
+            UnitID.meter -> UnitID.foot
+
+            UnitID.kilometer -> UnitID.mile
+            UnitID.mile -> UnitID.kilometer
+            UnitID.nautical_mile -> UnitID.kilometer
+
+            UnitID.mercury_equatorial_radius -> UnitID.kilometer
+            UnitID.mars_equatorial_radius -> UnitID.kilometer
+            UnitID.venus_equatorial_radius -> UnitID.kilometer
+            UnitID.earth_equatorial_radius -> UnitID.kilometer
+            UnitID.neptune_equatorial_radius -> UnitID.kilometer
+            UnitID.uranus_equatorial_radius -> UnitID.kilometer
+            UnitID.saturn_equatorial_radius -> UnitID.kilometer
+            UnitID.jupiter_equatorial_radius -> UnitID.kilometer
+            UnitID.sun_equatorial_radius -> UnitID.kilometer
+
+            UnitID.light_year -> UnitID.kilometer
+
+            UnitID.parsec -> UnitID.light_year
+            UnitID.kiloparsec -> UnitID.parsec
+            UnitID.megaparsec -> UnitID.kiloparsec
+
+
+            // === === === Mass === === ===
+            UnitID.electron_mass_rest -> UnitID.atomic_mass_unit
+            UnitID.atomic_mass_unit -> UnitID.electron_mass_rest
+
+            UnitID.microgram -> UnitID.milligram
+            UnitID.milligram -> UnitID.gram
+            UnitID.grain -> UnitID.gram
+            UnitID.carat -> UnitID.gram
+
+            UnitID.gram -> UnitID.carat
+            UnitID.ounce -> UnitID.gram
+            UnitID.pound -> UnitID.kilogram
+            UnitID.kilogram -> UnitID.pound
+
+            UnitID.metric_ton -> UnitID.kilogram
+            UnitID.imperial_ton -> UnitID.pound
+
+            UnitID.mercury_mass -> UnitID.kilogram
+            UnitID.mars_mass -> UnitID.kilogram
+            UnitID.venus_mass -> UnitID.kilogram
+            UnitID.earth_mass -> UnitID.kilogram
+            UnitID.uranus_mass -> UnitID.kilogram
+            UnitID.neptune_mass -> UnitID.kilogram
+            UnitID.saturn_mass -> UnitID.kilogram
+            UnitID.jupiter_mass -> UnitID.kilogram
+            UnitID.sun_mass -> UnitID.kilogram
+
+
+            // === === === Speed === === ===
+            UnitID.millimeter_per_hour -> UnitID.millimeter_per_second
+            UnitID.millimeter_per_second -> UnitID.millimeter_per_hour
+            UnitID.millimeter_per_minute -> UnitID.millimeter_per_second
+            UnitID.centimeter_per_hour -> UnitID.centimeter_per_second
+            UnitID.centimeter_per_second -> UnitID.centimeter_per_hour
+            UnitID.centimeter_per_minute -> UnitID.centimeter_per_second
+            UnitID.meter_per_hour -> UnitID.meter_per_second
+            UnitID.meter_per_second -> UnitID.meter_per_hour
+            UnitID.meter_per_minute -> UnitID.meter_per_second
+
+            UnitID.kilometer_per_hour -> UnitID.mile_per_hour
+            UnitID.kilometer_per_second -> UnitID.mile_per_second
+            UnitID.kilometer_per_minute -> UnitID.kilometer_per_second
+            UnitID.mile_per_hour -> UnitID.kilometer_per_hour
+            UnitID.mile_per_second -> UnitID.kilometer_per_second
+            UnitID.mile_per_minute -> UnitID.mile_per_second
+
+            UnitID.foot_per_hour -> UnitID.foot_per_second
+            UnitID.foot_per_second -> UnitID.foot_per_hour
+            UnitID.foot_per_minute -> UnitID.foot_per_second
+            UnitID.yard_per_hour -> UnitID.yard_per_second
+            UnitID.yard_per_second -> UnitID.yard_per_hour
+            UnitID.yard_per_minute -> UnitID.yard_per_second
+
+            UnitID.knot -> UnitID.kilometer_per_hour
+            UnitID.mach -> UnitID.kilometer_per_hour
+            UnitID.velocity_of_light_in_vacuum -> UnitID.kilometer_per_hour
+            UnitID.earths_orbital_speed -> UnitID.kilometer_per_hour
+
+            UnitID.cosmic_velocity_first -> UnitID.kilometer_per_hour
+            UnitID.cosmic_velocity_second -> UnitID.kilometer_per_hour
+            UnitID.cosmic_velocity_third -> UnitID.kilometer_per_hour
+
+
+            // === === === Temperature === === ===
+            UnitID.celsius -> UnitID.fahrenheit
+            UnitID.fahrenheit -> UnitID.celsius
+            UnitID.kelvin -> UnitID.celsius
+
+
+            // === === === Area === === ===
+            UnitID.square_micrometer -> UnitID.square_millimeter
+            UnitID.square_millimeter -> UnitID.square_centimeter
+            UnitID.square_centimeter -> UnitID.square_meter
+            UnitID.square_decimeter -> UnitID.square_meter
+            UnitID.square_meter -> UnitID.square_kilometer
+
+            UnitID.square_kilometer -> UnitID.square_meter
+
+            UnitID.square_inch -> UnitID.square_foot
+            UnitID.square_foot -> UnitID.square_inch
+            UnitID.square_yard -> UnitID.square_meter
+            UnitID.square_mile -> UnitID.square_kilometer
+
+            UnitID.acre -> UnitID.square_meter
+            UnitID.hectare -> UnitID.square_meter
+            UnitID.cent -> UnitID.square_meter
+
+
+            // === === === Time === === ===
+            UnitID.attosecond -> UnitID.nanosecond
+            UnitID.nanosecond -> UnitID.microsecond
+            UnitID.microsecond -> UnitID.millisecond
+            UnitID.millisecond -> UnitID.second
+
+            UnitID.jiffy -> UnitID.millisecond
+
+            UnitID.second -> UnitID.millisecond
+            UnitID.minute -> UnitID.second
+            UnitID.hour -> UnitID.minute
+            UnitID.day -> UnitID.hour
+            UnitID.week -> UnitID.day
+
+
+            // === === === Data === === ===
+            // TODO: Add tibibyte, exibyte
+            UnitID.bit -> UnitID.byte
+            UnitID.byte -> UnitID.kilobyte
+            UnitID.kilobyte -> UnitID.megabyte
+            UnitID.megabyte -> UnitID.gigabyte
+            UnitID.gigabyte -> UnitID.terabyte
+            UnitID.terabyte -> UnitID.petabyte
+            UnitID.petabyte -> UnitID.exabyte
+
+            UnitID.kilobit -> UnitID.kilobyte
+            UnitID.megabit -> UnitID.megabyte
+            UnitID.gigabit -> UnitID.gigabyte
+            UnitID.terabit -> UnitID.terabyte
+            UnitID.petabit -> UnitID.petabyte
+            UnitID.exabit -> UnitID.exabyte
+
+            UnitID.kibibit -> UnitID.kilobyte
+            UnitID.mebibit -> UnitID.megabyte
+            UnitID.gibibit -> UnitID.gigabyte
+
+            UnitID.kibibyte -> UnitID.kilobyte
+            UnitID.mebibyte -> UnitID.megabyte
+            UnitID.gibibyte -> UnitID.gigabyte
+
+
+            // === === === Acceleration === === ===
+            UnitID.millimeter_per_square_second -> UnitID.centimeter_per_square_second
+            UnitID.centimeter_per_square_second -> UnitID.meter_per_square_second
+            UnitID.decimeter_per_square_second -> UnitID.meter_per_square_second
+            UnitID.meter_per_square_second -> UnitID.kilometer_per_square_second
+
+            UnitID.mercury_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.mars_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.venus_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.uranus_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.earth_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.saturn_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.neptune_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.jupiter_surface_gravity -> UnitID.meter_per_square_second
+            UnitID.sun_surface_gravity -> UnitID.meter_per_square_second
+
+
+            // === === === Power === === ===
+            UnitID.attowatt -> UnitID.watt
+            UnitID.watt -> UnitID.kilowatt
+            UnitID.kilowatt -> UnitID.watt
+            UnitID.megawatt -> UnitID.kilowatt
+
+
+            // === === === Angle === === ===
+            UnitID.degree -> UnitID.radian
+            UnitID.radian -> UnitID.degree
+
+
+            // === === === Data Transfer === === ===
+            UnitID.bit_per_second -> UnitID.byte_per_second
+            UnitID.kilobit_per_second -> UnitID.kilobyte_per_second
+            UnitID.megabit_per_second -> UnitID.megabyte_per_second
+            UnitID.gigabit_per_second -> UnitID.gigabyte_per_second
+            UnitID.terabit_per_second -> UnitID.terabyte_per_second
+            UnitID.petabit_per_second -> UnitID.petabyte_per_second
+            UnitID.exabit_per_second -> UnitID.exabyte_per_second
+
+            UnitID.byte_per_second -> UnitID.kilobyte_per_second
+            UnitID.kilobyte_per_second -> UnitID.megabyte_per_second
+            UnitID.megabyte_per_second -> UnitID.gigabyte_per_second
+            UnitID.gigabyte_per_second -> UnitID.megabyte_per_second
+            UnitID.terabyte_per_second -> UnitID.gigabyte_per_second
+            UnitID.petabyte_per_second -> UnitID.terabyte_per_second
+
+
+            // === === === Fuel === === ===
+            UnitID.kilometer_per_liter -> UnitID.mile_us_per_liter
+            UnitID.mile_us_per_liter -> UnitID.kilometer_per_liter
+
+            else ->
+                (collection
+                    .map { getById(it.id) to getUnitStats(it.id) }
+                    .sortedByDescending { it.second.frequency }
+                    .firstOrNull { it.second.isFavorite }?.first ?: collection.first()).id
+        }
     }
 
     suspend fun incrementCounter(id: String) = withContext(Dispatchers.IO) {

data/evaluatto/src/main/java/io/github/sadellie/evaluatto/BigDecimalMath.kt

@@ -26,9 +26,19 @@ import kotlin.math.asin
 import kotlin.math.atan
 import kotlin.math.pow
 
+// Dirty hack to avoid -0.000000000001
+val PI_THRESHOLD = BigDecimal("0.000000000000001")
+
 internal fun BigDecimal.sin(radianMode: Boolean): BigDecimal {
     val angle: Double = if (radianMode) this.toDouble() else Math.toRadians(this.toDouble())
-    return kotlin.math.sin(angle).toBigDecimal()
+
+    val result = kotlin.math.sin(angle).toBigDecimal()
+
+    if (result.abs() < PI_THRESHOLD) {
+        return BigDecimal.ZERO
+    }
+
+    return result
 }
 
 internal fun BigDecimal.arsin(radianMode: Boolean): BigDecimal {
@@ -38,7 +48,14 @@ internal fun BigDecimal.arsin(radianMode: Boolean): BigDecimal {
 
 internal fun BigDecimal.cos(radianMode: Boolean): BigDecimal {
     val angle: Double = if (radianMode) this.toDouble() else Math.toRadians(this.toDouble())
-    return kotlin.math.cos(angle).toBigDecimal()
+
+    val result = kotlin.math.cos(angle).toBigDecimal()
+
+    if (result.abs() < PI_THRESHOLD) {
+        return BigDecimal.ZERO
+    }
+
+    return result
 }
 
 internal fun BigDecimal.arcos(radianMode: Boolean): BigDecimal {

data/evaluatto/src/main/java/io/github/sadellie/evaluatto/Expression.kt

@@ -93,10 +93,14 @@ class Expression(
                 }
 
                 moveIfMatched(Token.Operator.divide) -> {
-                    val divisor = parseFactor()
+                    // Adding those `setScale` calls have been added in
+                    // 36a931c7d175b5cad52ff3abceb7784b0bb82aac to fix #18
+                    // I'm not sure if this is the correct way to fix it, but it
+                    // seems to be working
+                    val divisor = parseFactor().setScale(MAX_PRECISION)
                     if (divisor.compareTo(BigDecimal.ZERO) == 0) throw ExpressionException.DivideByZero()
 
-                    expression = expression.divide(divisor, roundingMode)
+                    expression = expression.setScale(MAX_PRECISION).divide(divisor, roundingMode)
                 }
             }
         }
@@ -166,7 +170,8 @@ class Expression(
 
         // sin
         if (moveIfMatched(Token.Func.sin)) {
-            expr = parseFuncParentheses().sin(radianMode)
+            val x = parseFuncParentheses()
+            expr = x.sin(radianMode)
         }
 
         // cos
@@ -211,7 +216,13 @@ class Expression(
 
         // Power
         if (moveIfMatched(Token.Operator.power)) {
-            expr = expr.pow(parseFactor())
+            val factor = parseFactor()
+
+            if (factor.compareTo(BigDecimal.ZERO) == 0 && expr.compareTo(BigDecimal.ZERO) == 0) {
+                throw ExpressionException.BadExpression()
+            }
+
+            expr = expr.pow(factor)
         }
 
         // Modulo

data/evaluatto/src/test/java/io/github/sadellie/evaluatto/ExpressionComplexTest.kt

@@ -57,4 +57,7 @@ class ExpressionComplexTest {
 
     @Test
     fun expression12() = assertExpr("2×(3+4)×(5−2)÷6", "7")
+
+    @Test
+    fun shouldDivideRootAndDivideInCorrectOrder() = assertExpr("(√9)÷6", "0.5")
 }