a lot of improvements in language codes

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ## 0.20.23
 
+* `LanguageCodes`:
+    * Fixes in intermediate language codes (like `Chinese.Hans`)
+    * Rename `IetfLanguageCode` to `IetfLang`
+        * Rename all subsequent functions (including serializer)
+    * New lazy properties `knownLanguageCodesMap`, `knownLanguageCodesMapByLowerCasedKeys` and several others
+
 ## 0.20.22
 
 * `Common`:

language_codes/generator/src/main/kotlin/Main.kt

@@ -12,9 +12,12 @@ private val json = Json {
     ignoreUnknownKeys = true
 }
 
-private const val baseClassName = "IetfLanguageCode"
+private const val baseClassName = "IetfLang"
+private const val oldBaseClassName = "IetfLanguageCode"
 private const val unknownBaseClassName = "Unknown$baseClassName"
-private const val baseClassSerializerName = "IetfLanguageCodeSerializer"
+private const val oldUnknownBaseClassName = "Unknown$oldBaseClassName"
+private const val baseClassSerializerName = "${baseClassName}Serializer"
+private const val oldBaseClassSerializerName = "IetfLanguageCodeSerializer"
 private const val baseClassSerializerAnnotationName = "@Serializable(${baseClassSerializerName}::class)"
 
 @Serializable
@@ -78,14 +81,12 @@ private fun printLanguageCodeAndTags(
     indents: String = "    "
 ): String = if (tag.subtags.isEmpty()) {
 """${indents}${baseClassSerializerAnnotationName}
-${indents}object ${tag.title} : ${parent ?.title ?: baseClassName}() { override val code: String = "${tag.tag}"; override val withoutDialect: String get() = ${parent ?.title ?.let { "$it.code" } ?: "code"} }"""
+${indents}object ${tag.title} : ${parent ?.title ?: baseClassName}() { override val code: String = "${tag.tag}"${parent ?.let { parent -> "; override val parentLang: ${parent.title} get() = ${parent.title};" } ?: ""} }"""
 } else {
 """
 ${indents}${baseClassSerializerAnnotationName}
 ${indents}sealed class ${tag.title} : ${parent ?.title ?: baseClassName}() {
-${indents}    override val code: String = "${tag.tag}"
-${indents}    override val withoutDialect: String
-${indents}        get() = code
+${indents}    override val code: String = "${tag.tag}"${parent ?.let { parent -> "\n${indents}    override val parentLang: ${parent.title} get() = ${parent.title};" } ?: ""}
 
 ${tag.subtags.joinToString("\n") { printLanguageCodeAndTags(it, tag, "${indents}    ") }}
 
@@ -95,7 +96,7 @@ ${indents}}
 """
 }
 
-fun buildKtFileContent(tags: List<Tag>): String = """
+fun buildKtFileContent(tags: List<Tag>, prePackage: String): String = """
 import kotlinx.serialization.Serializable
 
 /**
@@ -106,20 +107,27 @@ import kotlinx.serialization.Serializable
 ${baseClassSerializerAnnotationName}
 sealed class $baseClassName {
     abstract val code: String
-    abstract val withoutDialect: String
+    open val parentLang: $baseClassName?
+        get() = null
+    open val withoutDialect: String
+        get() = parentLang ?.code ?: code
 
 ${tags.joinToString("\n") { printLanguageCodeAndTags(it, indents = "    ") } }
 
     $baseClassSerializerAnnotationName
     data class $unknownBaseClassName (override val code: String) : $baseClassName() {
-        override val withoutDialect: String = code.takeWhile { it != '-' }
+        override val parentLang = code.dropLastWhile { it != '-' }.removeSuffix("-").takeIf { it.length > 0 } ?.let(::$unknownBaseClassName)
     }
+    @Deprecated("Renamed", ReplaceWith("$baseClassName.$unknownBaseClassName", "${if (prePackage.isNotEmpty()) "$prePackage." else ""}$baseClassName.$unknownBaseClassName"))
+    val $oldUnknownBaseClassName = $unknownBaseClassName
 
     override fun toString() = code
 }
+@Deprecated("Renamed", ReplaceWith("$baseClassName", "${if (prePackage.isNotEmpty()) "$prePackage." else ""}$baseClassName"))
+typealias $oldBaseClassName = $baseClassName
 """.trimIndent()
 
-fun createStringConverterCode(tags: List<Tag>): String {
+fun createStringConverterCode(tags: List<Tag>, prePackage: String): String {
     fun createDeserializeVariantForTag(
         tag: Tag,
         pretitle: String = baseClassName,
@@ -128,19 +136,70 @@ fun createStringConverterCode(tags: List<Tag>): String {
         val currentTitle = "$pretitle.${tag.title}"
         return """${indents}$currentTitle.code -> $currentTitle${if (tag.subtags.isNotEmpty()) tag.subtags.joinToString("\n", "\n") { createDeserializeVariantForTag(it, currentTitle, indents) } else ""}"""
     }
-
-    return """fun String.as$baseClassName(): $baseClassName {
-    return when (this) {
-${tags.joinToString("\n") { createDeserializeVariantForTag(it) }}
-        else -> $baseClassName.${unknownBaseClassName}(this)
+    fun createInheritorVariantForTag(
+        tag: Tag,
+        pretitle: String = baseClassName,
+        indents: String = "        "
+    ): String {
+        val currentTitle = "$pretitle.${tag.title}"
+        val subtags = if (tag.subtags.isNotEmpty()) {
+            tag.subtags.joinToString(",\n", ",\n") { createInheritorVariantForTag(it, currentTitle, "$indents    ") }
+        } else {
+            ""
+        }
+        return "${indents}$currentTitle$subtags"
     }
+    fun createInheritorVariantForMapForTag(
+        tag: Tag,
+        pretitle: String = baseClassName,
+        indents: String = "        ",
+        codeSuffix: String = ""
+    ): String {
+        val currentTitle = "$pretitle.${tag.title}"
+        val subtags = if (tag.subtags.isNotEmpty()) {
+            tag.subtags.joinToString(",\n", ",\n") { createInheritorVariantForMapForTag(it, currentTitle, "$indents    ", codeSuffix) }
+        } else {
+            ""
+        }
+        return "${indents}$currentTitle.code${codeSuffix} to $currentTitle$subtags"
+    }
+
+    return """val knownLanguageCodesMap: Map<String, $baseClassName> by lazy {
+    mapOf(
+${tags.joinToString(",\n") { createInheritorVariantForMapForTag(it, indents = "        ") }}
+    )
 }
+val knownLanguageCodesMapByLowerCasedKeys: Map<String, $baseClassName> by lazy {
+    mapOf(
+${tags.joinToString(",\n") { createInheritorVariantForMapForTag(it, indents = "        ", codeSuffix = ".lowercase()") }}
+    )
+}
+val knownLanguageCodes: List<$baseClassName> by lazy {
+    knownLanguageCodesMap.values.toList()
+}
+
+fun String.as$baseClassName(): $baseClassName {
+    return knownLanguageCodesMap[this] ?: $baseClassName.${unknownBaseClassName}(this)
+}
+fun String.as${baseClassName}CaseInsensitive(): $baseClassName {
+    return knownLanguageCodesMapByLowerCasedKeys[this.lowercase()] ?: $baseClassName.${unknownBaseClassName}(this)
+}
+@Deprecated("Renamed", ReplaceWith("this.as$baseClassName()", "${if (prePackage.isNotEmpty()) "$prePackage." else ""}as$baseClassName"))
+fun String.as$oldBaseClassName(): $baseClassName = as$baseClassName()
+
 fun convertTo$baseClassName(code: String) = code.as$baseClassName()
+fun convertTo${baseClassName}CaseInsensitive(code: String) = code.as${baseClassName}CaseInsensitive()
+@Deprecated("Renamed", ReplaceWith("convertTo$baseClassName(code)", "${if (prePackage.isNotEmpty()) "$prePackage." else ""}convertTo$baseClassName"))
+fun convertTo$oldBaseClassName(code: String) = convertTo$baseClassName(code)
+
 fun $baseClassName(code: String) = code.as$baseClassName()
+fun ${baseClassName}CaseInsensitive(code: String) = code.as${baseClassName}CaseInsensitive()
+@Deprecated("Renamed", ReplaceWith("$baseClassName(code)", "${if (prePackage.isNotEmpty()) "$prePackage." else ""}$baseClassName"))
+fun $oldBaseClassName(code: String) = $baseClassName(code)
 """
 }
 
-fun createSerializerCode(tags: List<Tag>): String {
+fun createSerializerCode(tags: List<Tag>, prePackage: String): String {
     return """import kotlinx.serialization.KSerializer
 import kotlinx.serialization.builtins.serializer
 import kotlinx.serialization.encoding.Decoder
@@ -153,16 +212,20 @@ object $baseClassSerializerName : KSerializer<$baseClassName> {
         return $baseClassName(decoder.decodeString())
     }
 
-    override fun serialize(encoder: Encoder, value: IetfLanguageCode) {
+    override fun serialize(encoder: Encoder, value: $baseClassName) {
         encoder.encodeString(value.code)
     }
 }
+@Deprecated("Renamed", ReplaceWith("$baseClassSerializerName", "${if (prePackage.isNotEmpty()) "$prePackage." else ""}$baseClassSerializerName"))
+typealias $oldBaseClassSerializerName = $baseClassSerializerName
 """
 }
 
 suspend fun main(vararg args: String) {
     val outputFolder = args.firstOrNull() ?.let { File(it) }
     outputFolder ?.mkdirs()
+    val targetPackage = args.getOrNull(1)
+    val targetPackagePrefix = targetPackage ?.let { "package $it\n\n" } ?: ""
     val ietfLanguageCodesLink = "https://datahub.io/core/language-codes/r/language-codes.json"
     val ietfLanguageCodesAdditionalTagsLink = "https://datahub.io/core/language-codes/r/ietf-language-tags.json"
 
@@ -203,18 +266,18 @@ suspend fun main(vararg args: String) {
     File(outputFolder, "LanguageCodes.kt").apply {
         delete()
         createNewFile()
-        writeText(buildKtFileContent(tags))
+        writeText(targetPackagePrefix + buildKtFileContent(tags, targetPackage ?: ""))
     }
 
     File(outputFolder, "StringToLanguageCodes.kt").apply {
         delete()
         createNewFile()
-        writeText(createStringConverterCode(tags))
+        writeText(targetPackagePrefix + createStringConverterCode(tags, targetPackage ?: ""))
     }
 
     File(outputFolder, "$baseClassSerializerName.kt").apply {
         delete()
         createNewFile()
-        writeText(createSerializerCode(tags))
+        writeText(targetPackagePrefix + createSerializerCode(tags, targetPackage ?: ""))
     }
 }

language_codes/src/commonMain/kotlin/dev/inmo/micro_utils/language_codes/IetfLangSerializer.kt

@@ -0,0 +1,20 @@
+package dev.inmo.micro_utils.language_codes
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+
+object IetfLangSerializer : KSerializer<IetfLang> {
+    override val descriptor = String.serializer().descriptor
+
+    override fun deserialize(decoder: Decoder): IetfLang {
+        return IetfLang(decoder.decodeString())
+    }
+
+    override fun serialize(encoder: Encoder, value: IetfLang) {
+        encoder.encodeString(value.code)
+    }
+}
+@Deprecated("Renamed", ReplaceWith("IetfLangSerializer", "dev.inmo.micro_utils.language_codes.IetfLangSerializer"))
+typealias IetfLanguageCodeSerializer = IetfLangSerializer

language_codes/src/commonMain/kotlin/dev/inmo/micro_utils/language_codes/IetfLanguageCodeSerializer.kt

@@ -1,18 +0,0 @@
-package dev.inmo.micro_utils.language_codes
-
-import kotlinx.serialization.KSerializer
-import kotlinx.serialization.builtins.serializer
-import kotlinx.serialization.encoding.Decoder
-import kotlinx.serialization.encoding.Encoder
-
-object IetfLanguageCodeSerializer : KSerializer<IetfLanguageCode> {
-    override val descriptor = String.serializer().descriptor
-
-    override fun deserialize(decoder: Decoder): IetfLanguageCode {
-        return IetfLanguageCode(decoder.decodeString())
-    }
-
-    override fun serialize(encoder: Encoder, value: IetfLanguageCode) {
-        encoder.encodeString(value.code)
-    }
-}

language_codes/src/commonTest/kotlin/UnknownIetfLanguageTests.kt

@@ -0,0 +1,16 @@
+package dev.inmo.micro_utils.language_codes
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class UnknownIetfLanguageTests {
+    @Test
+    fun commonTestOfParentCode() {
+        knownLanguageCodes.forEach {
+            val language = IetfLang.UnknownIetfLang(it.code)
+            assertEquals(it.code, language.code)
+            assertEquals(it.withoutDialect, language.withoutDialect)
+            assertEquals(it.parentLang ?.code, language.parentLang ?.code)
+        }
+    }
+}

resources/src/commonMain/kotlin/StringResource.kt

@@ -2,6 +2,19 @@ package dev.inmo.micro_utils.strings
 
 import dev.inmo.micro_utils.language_codes.IetfLanguageCode
 
+/**
+ * Use this class as a type of your strings object fields. For example:
+ *
+ * ```kotlin
+ * object Strings {
+ *     val someResource: StringResource
+ * }
+ * ```
+ *
+ * Use [buildStringResource] for useful creation of string resource
+ *
+ * @see buildStringResource
+ */
 class StringResource(
     val default: String,
     val map: Map<IetfLanguageCode, Lazy<String>>
@@ -14,14 +27,24 @@ class StringResource(
         infix fun IetfLanguageCode.variant(value: Lazy<String>) {
             map[this] = value
         }
+        infix fun IetfLanguageCode.variant(value: () -> String) = this variant lazy(value)
         infix fun IetfLanguageCode.variant(value: String) = this variant lazyOf(value)
+
+
         infix fun String.variant(value: Lazy<String>) = IetfLanguageCode(this) variant value
+        infix fun String.variant(value: () -> String) = IetfLanguageCode(this) variant lazy(value)
         infix fun String.variant(value: String) = this variant lazyOf(value)
 
         fun build() = StringResource(default, map.toMap())
     }
 
-    fun translation(languageCode: IetfLanguageCode): String = (map[languageCode] ?: map[IetfLanguageCode(languageCode.withoutDialect)]) ?.value ?: default
+    fun translation(languageCode: IetfLanguageCode): String {
+        map[languageCode] ?.let { return it.value }
+
+        return languageCode.parentLang ?.let {
+            map[it] ?.value
+        } ?: default
+    }
 }
 
 inline fun buildStringResource(