Refactor

build.gradle.kts

@@ -20,13 +20,15 @@ application {
     applicationDefaultJvmArgs = listOf("-Dio.ktor.development=$isDevelopment")
 }
 
-//tasks.withType<KotlinCompile>{
-//    kotlinOptions{
-//        freeCompilerArgs = freeCompilerArgs + "-Xcontext-receivers"
-//    }
-//}
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>{
+    kotlinOptions{
+        languageVersion  = "1.7"
+        apiVersion = "1.7"
+        freeCompilerArgs = freeCompilerArgs + "-Xcontext-receivers"
+    }
+}
 
-val dataforgeVersion by extra("0.6.0-dev-3")
+val dataforgeVersion by extra("0.6.0-dev-4")
 val ktorVersion  = KScienceVersions.ktorVersion
 
 dependencies {

src/main/kotlin/ru/mipt/Application.kt

@@ -6,7 +6,7 @@ import io.ktor.server.application.call
 import io.ktor.server.application.install
 import io.ktor.server.engine.embeddedServer
 import io.ktor.server.html.respondHtml
-import io.ktor.server.http.content.resources
+import io.ktor.server.http.content.files
 import io.ktor.server.http.content.static
 import io.ktor.server.netty.Netty
 import io.ktor.server.plugins.statuspages.StatusPages
@@ -14,43 +14,48 @@ import io.ktor.server.response.respond
 import io.ktor.server.routing.get
 import io.ktor.server.routing.route
 import io.ktor.server.routing.routing
+import kotlinx.css.CssBuilder
+import kotlinx.html.CommonAttributeGroupFacade
+import kotlinx.html.style
 import ru.mipt.plugins.configureTemplating
-import ru.mipt.spc.magprog.DataSetSiteContext
-import ru.mipt.spc.magprog.SiteContext
+import ru.mipt.spc.magprog.DataSetPageContext
+import ru.mipt.spc.magprog.PageContext
 import ru.mipt.spc.magprog.magProgPage
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.io.io
-import space.kscience.dataforge.io.yaml.YamlPlugin
 import space.kscience.snark.DirectoryDataTree
+import space.kscience.snark.SnarkPlugin
 import java.nio.file.Path
 
+fun CommonAttributeGroupFacade.css(block: CssBuilder.() -> Unit) {
+    style = CssBuilder().block().toString()
+}
 
 class AuthenticationException : RuntimeException()
 class AuthorizationException : RuntimeException()
 
-internal fun Application.magProgSite(prefix: String = "magprog"){
+internal fun Application.magProgPage(rootPath: Path, prefix: String = "magprog") {
     val context = Context("spc-site") {
-        plugin(YamlPlugin)
+        plugin(SnarkPlugin)
     }
 
     val io = context.io
-    val directory = javaClass.getResource("/magprog/content")!!.toURI()
-    val content = DirectoryDataTree(io, Path.of(directory))
+    val content = DirectoryDataTree(io, rootPath.resolve("content"))
 
 
-    val magprogSiteContext: SiteContext = DataSetSiteContext(context,"magprog", content)
+    val magprogPageContext: PageContext = DataSetPageContext(context, prefix, content)
 
     routing {
         route(prefix) {
             get {
                 call.respondHtml {
-                    with(magprogSiteContext){
+                    with(magprogPageContext) {
                         magProgPage()
                     }
                 }
             }
             static {
-                resources("magprog/assets")
+                files(rootPath.resolve("assets").toFile())
             }
         }
     }
@@ -59,12 +64,12 @@ internal fun Application.magProgSite(prefix: String = "magprog"){
 
 fun main() {
     embeddedServer(Netty, port = 8080, host = "0.0.0.0") {
-        magProgSite()
+        magProgPage(rootPath = Path.of(javaClass.getResource("/magprog")!!.toURI()))
         install(StatusPages) {
-            exception<AuthenticationException> { call, cause ->
+            exception<AuthenticationException> { call, _ ->
                 call.respond(HttpStatusCode.Unauthorized)
             }
-            exception<AuthorizationException> { call, cause ->
+            exception<AuthorizationException> { call, _ ->
                 call.respond(HttpStatusCode.Forbidden)
             }
         }

src/main/kotlin/ru/mipt/spc/magprog/DataSetPageContext.kt

@@ -19,15 +19,16 @@ import space.kscience.dataforge.meta.toMeta
 import space.kscience.dataforge.misc.DFInternal
 import space.kscience.dataforge.names.Name
 import space.kscience.snark.DirectoryDataTree.Companion.META_FILE_EXTENSION_KEY
+import space.kscience.snark.HtmlData
 import kotlin.reflect.KType
 import kotlin.reflect.full.isSubtypeOf
 import kotlin.reflect.typeOf
 
-class DataSetSiteContext(
+class DataSetPageContext(
     override val context: Context,
     val prefix: String,
     val dataSet: DataSet<Any>,
-) : SiteContext {
+) : PageContext {
 
     override fun resolveResource(name: String): String = "$prefix/$name"
 

src/main/kotlin/ru/mipt/spc/magprog/PageContext.kt

@@ -9,10 +9,11 @@ import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.misc.DFInternal
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.startsWith
+import space.kscience.snark.HtmlData
 import kotlin.reflect.KType
 import kotlin.reflect.typeOf
 
-interface SiteContext: ContextAware {
+interface PageContext: ContextAware {
 
     /**
      * Resolve a resource full path by its name
@@ -37,12 +38,12 @@ interface SiteContext: ContextAware {
 }
 
 @OptIn(DFInternal::class)
-inline fun <reified T: Any> SiteContext.resolve(name: Name): Data<T>? = resolve(typeOf<T>(), name)
+inline fun <reified T: Any> PageContext.resolve(name: Name): Data<T>? = resolve(typeOf<T>(), name)
 
 @OptIn(DFInternal::class)
-inline fun <reified T:Any> SiteContext.resolveAll(noinline filter: (name: Name, meta: Meta) -> Boolean): DataSet<T> =
+inline fun <reified T:Any> PageContext.resolveAll(noinline filter: (name: Name, meta: Meta) -> Boolean): DataSet<T> =
     resolveAll(typeOf<T>(), filter)
 
-fun SiteContext.findByType(contentType: String, baseName: Name = Name.EMPTY) = resolveAllHtml { name, meta ->
+fun PageContext.findByType(contentType: String, baseName: Name = Name.EMPTY) = resolveAllHtml { name, meta ->
     name.startsWith(baseName) && meta["content_type"].string == contentType
 }

src/main/kotlin/ru/mipt/spc/magprog/Person.kt

@@ -2,14 +2,19 @@ package ru.mipt.spc.magprog
 
 import kotlinx.css.*
 import kotlinx.html.*
+import ru.mipt.css
 import space.kscience.dataforge.meta.string
+import space.kscience.snark.HtmlData
+import space.kscience.snark.htmlData
+import space.kscience.snark.id
+import space.kscience.snark.order
 
 class Person(val block: HtmlData) : HtmlData by block {
     val name: String by meta.string { error("Mentor name is not defined") }
     val photo: String? by meta.string()
 }
 
-context(SiteContext)
+context(PageContext)
 private fun FlowContent.personCards(list: List<Person>, prefix: String) {
     list.forEach { mentor ->
         section {
@@ -34,7 +39,7 @@ private fun FlowContent.personCards(list: List<Person>, prefix: String) {
     }
 }
 
-context(SiteContext)
+context(PageContext)
 fun FlowContent.mentors() {
     val mentors = findByType("magprog_mentor").values.map {
         Person(it)
@@ -54,7 +59,7 @@ fun FlowContent.mentors() {
     personCards(mentors,"mentor")
 }
 
-context(SiteContext)
+context(PageContext)
 fun FlowContent.team() {
     val team = findByType("magprog_team").values.map { Person(it) }.sortedBy { it.order }
 

src/main/kotlin/ru/mipt/spc/magprog/magProgPage.kt

@@ -3,6 +3,7 @@ package ru.mipt.spc.magprog
 import kotlinx.coroutines.runBlocking
 import kotlinx.css.*
 import kotlinx.html.*
+import ru.mipt.css
 import space.kscience.dataforge.data.await
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.get
@@ -11,6 +12,9 @@ import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
+import space.kscience.snark.HtmlData
+import space.kscience.snark.htmlData
+import space.kscience.snark.id
 
 //fun CssBuilder.magProgCss() {
 //    rule(".magprog-body") {
@@ -66,13 +70,13 @@ private val PROGRAM_PATH: Name = CONTENT_NODE_NAME + "program"
 private val RECOMMENDED_COURSES_PATH: Name = CONTENT_NODE_NAME + "recommendedCourses"
 private val PARTNERS_PATH: Name = CONTENT_NODE_NAME + "partners"
 
-context(SiteContext) private fun FlowContent.programSection() {
+context(PageContext) private fun FlowContent.programSection() {
     val programBlock = resolveHtml(PROGRAM_PATH)!!
     val recommendedBlock = resolveHtml(RECOMMENDED_COURSES_PATH)!!
     div("inner") {
         h2 { +"Учебная программа" }
         htmlData(programBlock)
-        button(classes = "fit btn btn-primary btn-lg") {
+        button(classes = "fit btn btn-secondary") {
             attributes["data-bs-toggle"] = "collapse"
             attributes["data-bs-target"] = "#recommended-courses-collapse-text"
             attributes["aria-expanded"] = "false"
@@ -81,14 +85,14 @@ context(SiteContext) private fun FlowContent.programSection() {
         }
         div("collapse pt-3") {
             id = "recommended-courses-collapse-text"
-            div("card card-body") {
+            div {
                 htmlData(recommendedBlock)
             }
         }
     }
 }
 
-context(SiteContext) private fun FlowContent.partners() {
+context(PageContext) private fun FlowContent.partners() {
     //val partnersData: Meta = resolve<Any>(PARTNERS_PATH)?.meta ?: Meta.EMPTY
     val partnersData: Meta =  runBlocking { resolve<Meta>(PARTNERS_PATH)?.await()} ?: Meta.EMPTY
     div("inner") {
@@ -113,7 +117,7 @@ context(SiteContext) private fun FlowContent.partners() {
     }
 }
 
-context(SiteContext) fun HTML.magProgPage() {
+context(PageContext) fun HTML.magProgPage() {
     val sections = listOf<MagProgSection>(
         wrapSection(resolveHtml(INTRO_PATH)!!, "intro"),
         MagProgSection(
@@ -158,6 +162,10 @@ context(SiteContext) fun HTML.magProgPage() {
             name = "viewport"
             content = "width=device-width, initial-scale=1, user-scalable=no"
         }
+        link {
+            rel = "stylesheet"
+            href = resolveResource("css/bootstrap.min.css")
+        }
         link {
             rel = "stylesheet"
             href = resolveResource("css/main.css")
@@ -237,6 +245,9 @@ context(SiteContext) fun HTML.magProgPage() {
         script {
             src = resolveResource("js/util.js")
         }
+        script {
+            src = resolveResource("js/bootstrap.min.js")
+        }
         script {
             src = resolveResource("js/main.js")
         }

src/main/kotlin/ru/mipt/spc/magprog/misc.kt

@@ -1,9 +0,0 @@
-package ru.mipt.spc.magprog
-
-import kotlinx.css.CssBuilder
-import kotlinx.html.CommonAttributeGroupFacade
-import kotlinx.html.style
-
-fun CommonAttributeGroupFacade.css(block: CssBuilder.() -> Unit) {
-    style = CssBuilder().block().toString()
-}

src/main/kotlin/space/kscience/snark/DirectoryDataTree.kt

@@ -13,10 +13,8 @@ import space.kscience.dataforge.names.NameToken
 import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
 import java.nio.file.Path
-import kotlin.io.path.extension
-import kotlin.io.path.isDirectory
-import kotlin.io.path.listDirectoryEntries
-import kotlin.io.path.nameWithoutExtension
+import java.nio.file.attribute.BasicFileAttributes
+import kotlin.io.path.*
 import kotlin.reflect.KType
 import kotlin.reflect.typeOf
 
@@ -32,7 +30,10 @@ class DirectoryDataTree(val io: IOPlugin, val path: Path) : DataTree<ByteArray>
         val meta = envelope.meta.copy {
             META_FILE_PATH_KEY put filePath.toString()
             META_FILE_EXTENSION_KEY put filePath.extension
-            //TODO add other file information
+
+            val attributes = filePath.readAttributes<BasicFileAttributes>()
+            META_FILE_UPDATE_TIME_KEY put attributes.lastModifiedTime().toInstant().toString()
+            META_FILE_CREATE_TIME_KEY put attributes.creationTime().toInstant().toString()
         }
         return Data(meta){
             envelope.data?.toByteArray() ?: ByteArray(0)
@@ -57,6 +58,8 @@ class DirectoryDataTree(val io: IOPlugin, val path: Path) : DataTree<ByteArray>
         val META_FILE_KEY = "file".asName()
         val META_FILE_PATH_KEY = META_FILE_KEY + "path"
         val META_FILE_EXTENSION_KEY = META_FILE_KEY + "extension"
+        val META_FILE_CREATE_TIME_KEY = META_FILE_KEY +"created"
+        val META_FILE_UPDATE_TIME_KEY = META_FILE_KEY +"update"
     }
 }
 

src/main/kotlin/space/kscience/snark/HtmlData.kt

@@ -1,4 +1,4 @@
-package ru.mipt.spc.magprog
+package space.kscience.snark
 
 import kotlinx.coroutines.runBlocking
 import kotlinx.html.FlowContent

src/main/kotlin/space/kscience/snark/SnarkHtmlParser.kt

@@ -0,0 +1,20 @@
+package space.kscience.snark
+
+import io.ktor.http.ContentType
+import kotlinx.html.div
+import kotlinx.html.unsafe
+import space.kscience.dataforge.meta.Meta
+import kotlin.reflect.KType
+import kotlin.reflect.typeOf
+
+object SnarkHtmlParser:SnarkParser<HtmlFragment> {
+    override val contentType: ContentType = ContentType.Text.Html
+    override val fileExtensions: Set<String> = setOf("html")
+    override val resultType: KType = typeOf<HtmlFragment>()
+
+    override suspend fun parse(bytes: ByteArray, meta: Meta): HtmlFragment = {
+        div{
+           unsafe { +bytes.decodeToString() }
+        }
+    }
+}

src/main/kotlin/space/kscience/snark/SnarkPlugin.kt

@@ -8,8 +8,10 @@ import space.kscience.dataforge.io.yaml.YamlPlugin
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.string
+import space.kscience.dataforge.misc.DFExperimental
 import space.kscience.dataforge.misc.Type
 import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.asName
 import kotlin.reflect.KClass
 import kotlin.reflect.KType
 
@@ -19,18 +21,20 @@ interface SnarkParser<R : Any> {
 
     val fileExtensions: Set<String>
 
-    val priority: Int
+    val priority: Int get() = DEFAULT_PRIORITY
 
     val resultType: KType
 
-    suspend fun parse(bytes: ByteArray): R
+    suspend fun parse(bytes: ByteArray, meta: Meta): R
 
     companion object {
         const val TYPE = "snark.parser"
+        const val DEFAULT_PRIORITY = 10
     }
 }
 
 
+@OptIn(DFExperimental::class)
 class SnarkPlugin : AbstractPlugin() {
     val yaml by require(YamlPlugin)
     val io get() = yaml.io
@@ -40,13 +44,30 @@ class SnarkPlugin : AbstractPlugin() {
     private val parsers: Map<Name, SnarkParser<*>> by lazy { context.gather(SnarkParser.TYPE, true) }
 
     private val parseAction = Action.map<ByteArray, Any> {
-        result { bytes ->
-            parsers.values.filter { parser ->
+        val parser: SnarkParser<*>? = parsers.values.filter { parser ->
             parser.contentType.toString() == meta["contentType"].string ||
                     meta[DirectoryDataTree.META_FILE_EXTENSION_KEY].string in parser.fileExtensions
         }.maxByOrNull {
             it.priority
-            }?.parse(bytes) ?: bytes
+        }
+
+        //ensure that final type is correct
+        if (parser == null) {
+            logger.warn { "The parser is not found for data with meta $meta" }
+            result { it }
+        } else {
+            result(parser.resultType) { bytes ->
+                parser.parse(bytes, meta)
+            }
+        }
+    }
+
+    override fun content(target: String): Map<Name, Any> {
+        return when(target){
+            SnarkParser.TYPE -> mapOf(
+                "html".asName() to SnarkHtmlParser
+            )
+            else ->super.content(target)
         }
     }
 

src/test/kotlin/ru/mipt/ApplicationTest.kt

@@ -3,6 +3,7 @@ package ru.mipt
 import io.ktor.client.request.get
 import io.ktor.http.HttpStatusCode
 import io.ktor.server.testing.testApplication
+import java.nio.file.Path
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
@@ -10,7 +11,7 @@ class ApplicationTest {
     @Test
     fun testRoot() = testApplication {
         application {
-            magProgSite()
+            magProgPage(rootPath = Path.of(javaClass.getResource("/magprog")!!.toURI()))
         }
         client.get("/magprog").apply {
             assertEquals(HttpStatusCode.OK, status)