Updated the uppercase and lowercase

But for auto translate from currency to view not have yet
We need to create a new file or use exist model to generate the locale format with custom currency from system or use defined

README.md

@@ -0,0 +1,139 @@
+# Money Object Module
+- Allow to do better with money module
+- Exchangeable for different currencies with custom override
+- Add money config able to custom by set of config
+- So on.
+
+### Example (Tests)
+```kotlin
+import com.cubetiqs.money.*
+import org.junit.Assert
+import org.junit.Test
+import java.util.*
+
+class MoneyTests {
+    private fun initMoneyConfig() {
+        applyMoneyConfig {
+            setProperties(buildMoneyConfigProperties {
+                setDeliEqual(':')
+                setDeliSplit(',')
+            })
+
+            fromJsonRates(MyBatchRates.getJsonRates())
+        }
+    }
+
+    object MyBatchRates {
+        fun getJsonRates(): String {
+            return """
+                {"USD": 1.0,"KHR": 4000.0, "eur": 0.5}
+            """.trimIndent()
+        }
+    }
+
+    @Test
+    fun exchange_2usd_to_khr_test() {
+        initMoneyConfig()
+
+        // Is valid for money config?
+        Assert.assertTrue(MoneyConfig.isConfigRatesValid())
+
+        // arithmetic operators calculation
+        val moneyUsd =
+            (2 withCurrency "usd") divideWith (2 withCurrency "usd") plusOf 1 minusOf 1 plusOf 1 multiplyOf 2 divideOf 2 divideWith (8000 withCurrency "khr") plusOf 1
+        val moneyKhr = moneyUsd exchangeTo "khr"
+
+        // Is correct exchange?
+        Assert.assertEquals(8000.0, moneyKhr.getValue(), 0.0)
+
+        // complex operators and exchanging
+        val sum =
+            ((moneyUsd + moneyKhr) * Money.TEN) exchangeTo MoneyCurrency.KHR minusWith (Money.ONE exchangeTo MoneyCurrency.KHR)
+
+        Assert.assertEquals(156000.0, sum.getValue(), 0.0)
+    }
+
+    @Test
+    fun moneyGenerator() {
+        initMoneyConfig()
+
+        val moneyGen = MoneyObject(
+            value = 1.0,
+            currency = "usd",
+            operator = MoneyObject.MoneyOperator.PLUS,
+            with = MoneyObject(
+                value = 8000.0,
+                currency = "khr",
+                operator = MoneyObject.MoneyOperator.MINUS,
+                with = MoneyObject(
+                    value = 1000.0,
+                    currency = "khr",
+                )
+            )
+        )
+
+        val result = moneyGen.compute()
+        Assert.assertEquals(2.75, result.getValue(), 0.0)
+    }
+
+    @Test
+    fun moneyGeneratorBuilder() {
+        initMoneyConfig()
+
+        val expected = 72000.0
+
+        val builder = MoneyObject.builder()
+            .with(10.0, "usd", '+')
+            .with(1.5, "eur", '+')
+            .with(8000.0, "khr")
+            .with(10000.0, "khr")
+            .with(2000.0, "khr")
+            .with(.5, "eur", '-')
+            .with(1.0, "usd")
+            .withCurrency("khr")
+            .build()
+
+        val result = builder.compute()
+        Assert.assertEquals(expected, result.getValue(), 0.0)
+    }
+
+    @Test
+    fun moneyGeneratorBuilderWithStringValues() {
+        initMoneyConfig()
+
+        val values = "usd:1:+,khr:4000:-,usd:1:+,eur:1:+" // result = 3
+        val expected1 = 3.0
+        val expected2 = 3.5
+
+        val builder = MoneyObject.builder()
+            .withCurrency("usd")
+            .with(1.0, "usd", '-')
+            .with(4000.0, "khr")
+            .with(1.0, "usd")
+            .with(1.0, "usd")
+            .with(1.0, "usd")
+            .with(1.0, "usd")
+            .with(1.0, "eur", '-') // 2 usd
+            .with(1.0, "usd")
+            .with(2.0, "usd", '/')
+            .with(2.0, "usd")
+            .build() // 3.5
+
+        val result1 = MoneyObject.builder()
+            .parseFromString(values)
+            .withCurrency("usd")
+            .build()
+            .compute()
+        val result2 = builder.compute()
+
+        Assert.assertEquals(expected1, result1.getValue(), 0.0)
+        Assert.assertEquals(expected2, result2.getValue(), 0.0)
+    }
+
+    @Test
+    fun moneyFormatterTest() {
+        val systemCurrency = Currency.getInstance("USD").symbol
+        println(systemCurrency)
+    }
+}
+```

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists

src/main/kotlin/com/cubetiqs/money/MoneyConfig.kt

@@ -1,5 +1,10 @@
 package com.cubetiqs.money
 
+import java.lang.Exception
+import java.util.*
+import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.ConcurrentMap
+
 /**
  * Default money config in static object.
  * Sample parse format: USD=1,KHR=4000,EUR=0.99
@@ -8,27 +13,74 @@ package com.cubetiqs.money
  * @since 1.0
  */
 object MoneyConfig {
+    private const val CONFIG_RATE_INITIAL_SIZE = 10
+    private const val CONFIG_FORMATTER_INITIAL_SIZE = 10
+    private const val LOCALES_INITIAL_SIZE = 5
+    private const val CURRENCIES_INITIAL_SIZE = 5
+    private const val CONFIG_INITIAL_SIZE = 50
+
     /**
      * All money currencies and its rate are stored in memory state for exchange or compute the value.
      *
      * Key is the currency
      * Value is the rate
      */
-    private val config: MutableMap<String, Double> = mutableMapOf()
+    private val configRates: ConcurrentMap<String, Double> = ConcurrentHashMap(CONFIG_RATE_INITIAL_SIZE)
 
     // use to format the money for each value, if have
-    private val configFormatter: MutableMap<String, MoneyFormatProvider> = mutableMapOf()
+    private val configFormatter: ConcurrentMap<String, MoneyFormatProvider> =
+        ConcurrentHashMap(CONFIG_FORMATTER_INITIAL_SIZE)
+
+    // use to custom locales and allow to detect auto formatter, if enable auto locale format
+    private val configLocales: ConcurrentMap<String, Locale> = ConcurrentHashMap(LOCALES_INITIAL_SIZE)
+
+    // use to custom currencies and allow to detect auto, when use auto-detect for currencies translate
+    private val configCurrencies: ConcurrentMap<String, Currency> = ConcurrentHashMap(CURRENCIES_INITIAL_SIZE)
+
+    // allow to use config of any states
+    private val configs: ConcurrentMap<String, Any?> = ConcurrentHashMap(CONFIG_INITIAL_SIZE)
+
+    // allow to set the value into custom config
+    fun setConfig(key: String, value: Any?) = apply {
+        if (configs.containsKey(key)) {
+            configs.replace(key, value)
+        } else {
+            this.configs[key] = value
+        }
+    }
+
+    // allow to get the value from custom config
+    fun <T> getConfigOrDefault(key: String, defaultValue: T? = null): T? {
+        return (try {
+            @Suppress("UNCHECKED_CAST")
+            configs[key] as? T
+        } catch (ex: Exception) {
+            null
+        }) ?: defaultValue
+    }
 
     // use to identified for config dataset with prefix mode
     private var configPrefix: String = ""
+    private fun isConfigPrefixValid() = configPrefix.isNotEmpty() && configPrefix.isNotBlank()
+
     // use to fallback, if the currency not found
     // if the fallback greater than ZERO, then called it
     // else throws
     private var fallbackRate: Double = 0.0
 
-    // validate the config, if have it's valid
+    fun getConfigs(): Map<String, Any?> {
-    fun isValid(): Boolean {
+        return mapOf(
-        return config.isNotEmpty()
+            "configRates" to configRates,
+            "configFormatter" to configFormatter,
+            "configLocales" to configLocales,
+            "configCurrencies" to configCurrencies,
+            "configs" to configs,
+        )
+    }
+
+    // validate the config rates, if have it's valid
+    fun isConfigRatesValid(): Boolean {
+        return configRates.isNotEmpty()
     }
 
     /**
@@ -56,6 +108,26 @@ object MoneyConfig {
         this.fallbackRate = fallbackRate
     }
 
+    fun setAutoLocaleFormatter(enabled: Boolean) = apply {
+        setConfig(getConfigKey("autoLocaleFormatter"), enabled)
+    }
+
+    fun setAutoCurrencyFormatter(enabled: Boolean) = apply {
+        setConfig(getConfigKey("autoCurrencyFormatter"), enabled)
+    }
+
+    // use to auto format, when this true
+    // and formatter for money value, with current locale or custom set locale
+    fun isAutoLocaleFormatterEnabled(): Boolean {
+        return getConfigOrDefault(getConfigKey("autoLocaleFormatter"), false) ?: false
+    }
+
+    // use to auto format, when this true
+    // and formatter for money value, with current currency or custom set currency
+    fun isAutoCurrencyFormatterEnabled(): Boolean {
+        return getConfigOrDefault(getConfigKey("autoCurrencyFormatter"), false) ?: false
+    }
+
     // get custom config key within currency generally
     // example: myOwned_usd
     private fun getConfigKey(key: String): String {
@@ -75,12 +147,12 @@ object MoneyConfig {
     fun parse(config: String, clearAllStates: Boolean = true) {
         // remove all states, if needed
         if (clearAllStates) {
-            if (configPrefix.isEmpty() || config.isBlank()) {
+            if (!isConfigPrefixValid()) {
-                MoneyConfig.config.clear()
+                configRates.clear()
             } else {
-                val keys = MoneyConfig.config.filter { it.key.startsWith(prefix = configPrefix) }.keys
+                val keys = configRates.filter { it.key.startsWith(prefix = configPrefix) }.keys
                 keys.forEach { key ->
-                    MoneyConfig.config.remove(key)
+                    configRates.remove(key)
                 }
             }
         }
@@ -93,16 +165,16 @@ object MoneyConfig {
                 .split(getProperties().deliEqual)
             if (temp.size == 2) {
                 val currency = temp[0]
-                    .toUpperCase()
+                    .uppercase()
                     .trim()
                 val key = getConfigKey(currency)
                 val value = temp[1].toDouble()
 
                 // set the value into dataset
-                if (MoneyConfig.config.containsKey(key)) {
+                if (configRates.containsKey(key)) {
-                    MoneyConfig.config.replace(key, value)
+                    configRates.replace(key, value)
                 } else {
-                    MoneyConfig.config.put(key, value)
+                    configRates.put(key, value)
                 }
             } else {
                 throw MoneyCurrencyStateException("money config format $temp is not valid!")
@@ -113,12 +185,12 @@ object MoneyConfig {
     // append the rate into dataset
     // for config key are completed change inside
     fun appendRate(currency: String, rate: Double) = apply {
-        val currencyKey = currency.toUpperCase().trim()
+        val currencyKey = currency.uppercase().trim()
         val key = getConfigKey(currencyKey)
-        if (config.containsKey(key)) {
+        if (configRates.containsKey(key)) {
-            config.replace(key, rate)
+            configRates.replace(key, rate)
         } else {
-            config[key] = rate
+            configRates[key] = rate
         }
     }
 
@@ -148,14 +220,81 @@ object MoneyConfig {
     }
 
     // all currencies with its rate
-    fun getConfig() = config
+    fun getConfigRates() = configRates
 
     @Throws(MoneyCurrencyStateException::class)
     fun getRate(currency: StdMoney.Currency): Double {
-        return getConfig()[getConfigKey(currency.getCurrency().toUpperCase().trim())]
+        return getConfigRates()[getConfigKey(currency.getCurrency().uppercase().trim())]
             ?: if (fallbackRate > 0) fallbackRate else throw MoneyCurrencyStateException("money currency ${currency.getCurrency()} is not valid!")
     }
 
+    // apply custom locale below
+    fun applyDefaultLocale(locale: Locale = Locale.getDefault()) = apply {
+        configLocales[MoneyFormatter.DEFAULT_LOCALE] = locale
+    }
+
+    // get default locale from system or user defined
+    private fun getDefaultLocale(): Locale {
+        return configLocales[MoneyFormatter.DEFAULT_LOCALE] ?: Locale.getDefault()
+    }
+
+    // add custom locale
+    fun applyLocale(locale: Locale) = apply {
+        if (isConfigPrefixValid()) {
+            if (configLocales.containsKey(configPrefix)) {
+                configLocales.replace(configPrefix, locale)
+            } else {
+                configLocales[configPrefix] = locale
+            }
+        }
+    }
+
+    // get locale by config prefix or default if not found
+    fun getLocale(): Locale {
+        if (isConfigPrefixValid() && configLocales.containsKey(configPrefix)) {
+            return configLocales[configPrefix] ?: getDefaultLocale()
+        }
+
+        return getDefaultLocale()
+    }
+
+    // get default currency from system or user defined
+    private fun getDefaultCurrency(): Currency {
+        return configCurrencies[MoneyFormatter.DEFAULT_CURRENCY] ?: Currency.getInstance(getDefaultLocale())
+    }
+
+    // apply the default currency for system at runtime
+    fun applyDefaultCurrency(currency: StdMoney.Currency) = apply {
+        configCurrencies[MoneyFormatter.DEFAULT_CURRENCY] = currency.findCurrency()
+    }
+
+    // apply the currency into the config for system currency at runtime
+    fun applyCurrency(currency: StdMoney.Currency) = apply {
+        if (isConfigPrefixValid()) {
+            val systemCurrency = currency.findCurrency()
+            if (systemCurrency != null) {
+                if (configCurrencies.containsKey(configPrefix)) {
+                    configCurrencies.replace(configPrefix, systemCurrency)
+                } else {
+                    configCurrencies[configPrefix] = systemCurrency
+                }
+            }
+        }
+    }
+
+    // get currency by config prefix or default if not found
+    fun getCurrency(): Currency {
+        if (isConfigPrefixValid() && configCurrencies.containsKey(configPrefix)) {
+            return configCurrencies[configPrefix] ?: getDefaultCurrency()
+        }
+
+        return getDefaultCurrency()
+    }
+
+    fun getCurrencySymbol(): String {
+        return getCurrency().getSymbol(getDefaultLocale())
+    }
+
     // apply default formatter for all not exists
     fun applyDefaultFormatter(
         provider: MoneyFormatProvider? = null
@@ -167,7 +306,7 @@ object MoneyConfig {
 
     // add money formatter by currency of each money value
     fun addFormatter(currency: String, formatter: MoneyFormatProvider) = apply {
-        val key = getConfigKey(currency.toUpperCase().trim())
+        val key = getConfigKey(currency.uppercase().trim())
         if (configFormatter.containsKey(key)) {
             configFormatter.replace(key, formatter)
         } else {
@@ -179,7 +318,7 @@ object MoneyConfig {
     fun getFormatter(currency: String? = null): MoneyFormatter {
         // apply default formatter
         val formatter = (if (!currency.isNullOrEmpty()) {
-            val key = getConfigKey(currency.toUpperCase().trim())
+            val key = getConfigKey(currency.uppercase().trim())
             configFormatter[key]
         } else {
             null

src/main/kotlin/com/cubetiqs/money/MoneyCurrency.kt

@@ -14,7 +14,7 @@ open class MoneyCurrency(
     private var configs: Map<String, Any?>? = null,
 ) : Serializable, StdMoney.Currency {
     override fun getCurrency(): String {
-        return name.toUpperCase().trim()
+        return name.uppercase().trim()
     }
 
     fun getSymbol(): String? {

src/main/kotlin/com/cubetiqs/money/MoneyExchangeUtils.kt

@@ -14,4 +14,23 @@ object MoneyExchangeUtils {
     fun getBaseCurrency(): StdMoney.Currency {
         return StdMoney.USD
     }
+
+    /**
+     * Compute the Base Exchange Price / Converter to any Rates.
+     * Multiple differentiate exchange relation computation.
+     * Example: A -> B -> C meant You can with all variables, but must find the based MEANT of its.
+     *
+     * Sample Explanation: Matrix Multiply
+     * 1 USD -> 0.90 EUR
+     * 1 USD -> 4000 KHR
+     * If I want to exchange from EUR to KHR, I need.
+     * 1 EUR -> 1 * (1 / 0.90) / (1 / 4000)
+     *
+     * @author sombochea
+     * @since 1.0
+     */
+    fun computeFromBaseRate(amountFrom: Double = 1.0, baseRate: Double = 1.0, rateFrom: Double, rateTo: Double): Double {
+        // amount * ((baseRate / rateFrom) / (baseRate / rateTo))
+        return amountFrom.times((baseRate.div(rateFrom)).div(baseRate.div(rateTo)))
+    }
 }

src/main/kotlin/com/cubetiqs/money/MoneyExtension.kt

@@ -1,12 +1,14 @@
 package com.cubetiqs.money
 
+import java.util.*
+
 infix fun StdMoney.exchangeTo(currency: StdMoney.Currency): StdMoney {
     return MoneyExchangeUtils.exchange(this, currency)
 }
 
 infix fun StdMoney.exchangeTo(currency: String): StdMoney = this exchangeTo object : StdMoney.Currency {
     override fun getCurrency(): String {
-        return currency.toUpperCase().trim()
+        return currency.uppercase().trim()
     }
 }
 
@@ -67,7 +69,7 @@ infix fun Number.withCurrency(currency: StdMoney.Currency): StdMoney = object :
 
 infix fun Number.withCurrency(currency: String): StdMoney = this withCurrency object : StdMoney.Currency {
     override fun getCurrency(): String {
-        return currency.toUpperCase().trim()
+        return currency.uppercase().trim()
     }
 }
 
@@ -127,3 +129,8 @@ fun MoneyView.asStdMoney(): StdMoney {
         }
     }
 }
+
+// detect currency symbol, if needed
+fun StdMoney.Currency.findCurrency(): Currency? {
+    return Currency.getInstance(this.getCurrency())
+}

src/main/kotlin/com/cubetiqs/money/MoneyFormatter.kt

@@ -2,6 +2,7 @@ package com.cubetiqs.money
 
 import java.io.Serializable
 import java.math.RoundingMode
+import java.text.NumberFormat
 
 /**
  * Money Formatter (Final class)
@@ -25,6 +26,12 @@ class MoneyFormatter(
         }
     }
 
+    // allow to force the auto format from money config
+    private var disableAutoFormat: Boolean = true
+    fun setDisableAutoFormat(disabled: Boolean) = apply {
+        this.disableAutoFormat = disabled
+    }
+
     // when want to format the value for each of them, need to parse the money value here
     private var value: StdMoney? = null
     fun setValue(value: StdMoney?) = apply { this.value = value }
@@ -40,8 +47,24 @@ class MoneyFormatter(
     override fun format(): String {
         value?.getValue() ?: return ""
 
+        var autoFormat = if (disableAutoFormat) {
+            null
+        } else {
+            autoFormatValueFromConfig(force = false)
+        }
+
+        if (!autoFormat.isNullOrEmpty()) {
+            return autoFormat
+        }
+
+        // if don't have the pattern, precision and rounding, will able to use system auto format enabled
         if (getPattern() == null && getPrecision() < 0 && getRoundingMode() == null) {
-            return value?.getValue().toString()
+            autoFormat = autoFormatValueFromConfig(force = true)
+            return if (autoFormat.isNullOrEmpty()) {
+                value?.getValue().toString()
+            } else {
+                autoFormat
+            }
         }
 
         if (getPrecision() > -1) {
@@ -55,7 +78,30 @@ class MoneyFormatter(
         return value?.asMoneyString(overrideSymbol) ?: ""
     }
 
+    private fun autoFormatValueFromConfig(force: Boolean): String? {
+        if (force || MoneyConfig.isAutoLocaleFormatterEnabled()) {
+            val systemCurrency = if (MoneyConfig.isAutoCurrencyFormatterEnabled()) {
+                MoneyConfig.getCurrency()
+            } else {
+                value?.getCurrency()?.findCurrency()
+            }
+
+            if (systemCurrency != null) {
+                val numberFormatter = NumberFormat.getNumberInstance(MoneyConfig.getLocale())
+                if (getRoundingMode() != null) {
+                    numberFormatter.roundingMode = getRoundingMode()
+                }
+                numberFormatter.currency = systemCurrency
+                return numberFormatter.format(value?.getValue())
+            }
+        }
+
+        return null
+    }
+
     companion object {
         const val DEFAULT_FORMATTER = "defaultFormatter"
+        const val DEFAULT_LOCALE = "defaultLocale"
+        const val DEFAULT_CURRENCY = "defaultCurrency"
     }
 }

src/main/kotlin/com/cubetiqs/money/MoneyObject.kt

@@ -105,7 +105,7 @@ open class MoneyObject(
                             if (temp.length == 1) {
                                 operator(temp[0])
                             } else {
-                                valueOf(temp.toUpperCase().trim())
+                                valueOf(temp.uppercase().trim())
                             }
                         }
                         is Char -> {

src/main/kotlin/com/cubetiqs/money/MoneyView.kt

@@ -4,23 +4,37 @@ open class MoneyView(
     private var value: Number? = null,
     private var currency: String? = null,
 ) : MoneyMixin {
-    constructor(money: StdMoney) : this() {
+    private var _currency: StdMoney.Currency? = null
+
+    constructor(value: StdMoney) : this() {
+        val money = if (MoneyConfig.isAutoCurrencyFormatterEnabled()) {
+            value exchangeTo MoneyConfig.getCurrency().currencyCode
+        } else {
+            value
+        }
+
+        this._currency = money.getCurrency()
         this.value = money.getValue()
-        this.currency = money.getCurrency().getCurrency()
+        this.currency = this._currency?.getCurrency()
     }
 
     fun getValue(): Double {
-        return value?.toDouble() ?: 0.0
+        return (value?.toDouble() ?: 0.0)
     }
 
     fun getCurrency(): String? {
         return currency
     }
 
+    fun getSymbol(): String? {
+        return this._currency?.findCurrency()?.symbol
+    }
+
     fun getFormat(): String {
         return MoneyConfig
             .getFormatter(getCurrency())
             .setValue(this.asStdMoney())
+            .setDisableAutoFormat(true)
             .format()
     }
 }

src/main/kotlin/com/cubetiqs/money/StdMoney.kt

@@ -60,7 +60,7 @@ interface StdMoney : MoneyMixin {
         fun initCurrency(currency: String?): Currency {
             return object : Currency {
                 override fun getCurrency(): String {
-                    return currency?.toUpperCase()?.trim() ?: "USD"
+                    return currency?.uppercase()?.trim() ?: "USD"
                 }
             }
         }

src/test/kotlin/MoneyTests.kt

@@ -1,6 +1,7 @@
 import com.cubetiqs.money.*
 import org.junit.Assert
 import org.junit.Test
+import java.util.*
 
 class MoneyTests {
     private fun initMoneyConfig() {
@@ -26,19 +27,8 @@ class MoneyTests {
     fun exchange_2usd_to_khr_test() {
         initMoneyConfig()
 
-//        applyMoneyConfig {
-//            setProperties(buildMoneyConfigProperties {
-//                setDeliEqual(':')
-//                setDeliSplit(',')
-//            })
-//            // parse("USD:1,KHR:4000")
-//            // appendRate("usd", 1.0)
-//            // appendRate("khr", 4000.0)
-//            fromJson(MyBatchRates.getJsonRates())
-//        }
-
         // Is valid for money config?
-        Assert.assertTrue(MoneyConfig.isValid())
+        Assert.assertTrue(MoneyConfig.isConfigRatesValid())
 
         // arithmetic operators calculation
         val moneyUsd =
@@ -138,6 +128,7 @@ class MoneyTests {
 
     @Test
     fun moneyFormatterTest() {
-
+        val systemCurrency = Currency.getInstance("USD").symbol
+        println(systemCurrency)
     }
 }