Add language support

src/main/kotlin/ru/mipt/spc/spcCollection.kt

@@ -2,13 +2,12 @@ package ru.mipt.spc
 
 import html5up.forty.fortyScripts
 import kotlinx.html.*
+import space.kscience.dataforge.data.Data
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.int
 import space.kscience.dataforge.meta.string
-import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.*
-import space.kscience.dataforge.names.parseAsName
-import space.kscience.dataforge.names.withIndex
 import space.kscience.snark.html.*
 import kotlin.collections.component1
 import kotlin.collections.component2
@@ -91,15 +90,17 @@ internal fun SiteBuilder.spcSpotlight(
     address: String,
     contentFilter: (Name, Meta) -> Boolean,
 ) {
-    val name = address.parseAsName()
+    val pageName = address.parseAsName()
-    val body = data.resolveHtml(name) ?: error("Could not find body for $name")
+    val languagePrefix = languagePrefix
-    val content = data.resolveAllHtml(contentFilter)
+    val body = data.resolveHtml(languagePrefix + pageName)
+        ?: data.resolveHtml(pageName) ?: error("Could not find body for $pageName")
+    val content: Map<Name, Data<HtmlFragment>> =
+        data.resolveAllHtml { name, meta -> name.startsWith(languagePrefix) && contentFilter(name, meta) }
 
     val meta = body.meta
-    page(name) {
+    page(pageName) {
         val title by meta.string { SPC_TITLE }
-        val pageName by meta.string { title }
+        spcHead(title)
-        spcHead(pageName)
         body("is-preload") {
             wrapper {
                 spcSpotlightContent(body, content)
@@ -110,8 +111,8 @@ internal fun SiteBuilder.spcSpotlight(
     }
 
     content.forEach { (name, contentBody) ->
-        page(name) {
+        page(name, contentBody.meta) {
-            spcPageContent(contentBody.meta) {
+            spcPageContent {
                 htmlData(contentBody)
             }
         }

src/main/kotlin/ru/mipt/spc/spcHome.kt

@@ -13,11 +13,10 @@ import kotlin.reflect.typeOf
 
 
 context(WebPage) internal fun HTML.spcPageContent(
-    meta: Meta,
     fragment: FlowContent.() -> Unit,
 ) {
-    val title by meta.string { SPC_TITLE }
+    val title by pageMeta.string { SPC_TITLE }
-    val pageName by meta.string { title }
+    val pageName by pageMeta.string { title }
     spcHead(pageName)
     body("is-preload") {
         wrapper {
@@ -29,7 +28,7 @@ context(WebPage) internal fun HTML.spcPageContent(
                         header("major") {
                             h1 { +title }
                         }
-                        meta["image"]?.let { imageMeta ->
+                        pageMeta["image"]?.let { imageMeta ->
                             val imagePath =
                                 imageMeta.value?.string ?: imageMeta["path"].string ?: error("Image path not provided")
                             val imageClass = imageMeta["position"].string ?: "main"
@@ -63,12 +62,12 @@ internal val FortyDataRenderer: DataRenderer = object : DataRenderer {
                 data.meta
             } else {
                 data.meta.toMutableMeta().apply {
-                    "language" put languageMeta
+                    "languages" put languageMeta
                 }
             }
 
-            page(name, data.meta) {
+            page(name, dataMeta) {
-                spcPageContent(dataMeta) {
+                spcPageContent{
                     htmlData(data)
                 }
             }
@@ -279,9 +278,9 @@ internal fun SiteBuilder.spcHome(dataPath: Path, prefix: Name = Name.EMPTY) {
         ) {
             page { spcHome() }
 
-            pages("consulting", dataRenderer = FortyDataRenderer)
+            localizedPages("consulting", dataRenderer = FortyDataRenderer)
 
-            pages("education", dataRenderer = FortyDataRenderer)
+            localizedPages("education", dataRenderer = FortyDataRenderer)
 
             spcSpotlight("team") { _, meta ->
                 meta["type"].string == "team"

src/main/kotlin/ru/mipt/spc/spcMisc.kt

@@ -1,15 +1,19 @@
 package ru.mipt.spc
 
 import kotlinx.html.*
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
 import space.kscience.snark.html.WebPage
 import space.kscience.snark.html.homeRef
+import space.kscience.snark.html.languages
 import space.kscience.snark.html.resolvePageRef
 import java.time.LocalDate
 
 
 internal const val SPC_TITLE = "Scientific Programming Centre"
 
-context(WebPage) internal fun HTML.spcHead(title: String = SPC_TITLE) {
+context(WebPage)
+internal fun HTML.spcHead(title: String = SPC_TITLE) {
     head {
         title {
             +title
@@ -49,7 +53,8 @@ context(WebPage) internal fun HTML.spcHead(title: String = SPC_TITLE) {
     }
 }
 
-context(WebPage) internal fun FlowContent.spcHomeMenu() {
+context(WebPage)
+internal fun FlowContent.spcHomeMenu() {
     nav {
         id = "menu"
         ul("links") {
@@ -101,7 +106,8 @@ context(WebPage) internal fun FlowContent.spcHomeMenu() {
     }
 }
 
-context(WebPage) internal fun FlowContent.spcFooter() {
+context(WebPage)
+internal fun FlowContent.spcFooter() {
     footer {
         id = "footer"
         div("inner") {
@@ -152,7 +158,8 @@ context(WebPage) internal fun FlowContent.spcFooter() {
     }
 }
 
-context(WebPage) internal fun FlowContent.wrapper(contentBody: FlowContent.() -> Unit) {
+context(WebPage)
+internal fun FlowContent.wrapper(contentBody: FlowContent.() -> Unit) {
     div {
         id = "wrapper"
         // Header
@@ -163,6 +170,19 @@ context(WebPage) internal fun FlowContent.wrapper(contentBody: FlowContent.() ->
                 strong { +"""SPC""" }
                 span { +"""Scientific Programming Centre""" }
             }
+
+
+            if (languages.isNotEmpty()) {
+                div {
+                    languages.forEach { (key, meta) ->
+                        a(classes = "button primary small") {
+                            href = resolvePageRef(meta["target"].string ?: "#")
+                            +key
+                        }
+                    }
+                }
+            }
+
             nav {
                 a {
                     href = "#menu"