feat(opds): recently added books

closes gotson#327

komga/src/main/kotlin/org/gotson/komga/domain/persistence/BookRepository.kt

@@ -2,12 +2,15 @@ package org.gotson.komga.domain.persistence
 
 import org.gotson.komga.domain.model.Book
 import org.gotson.komga.domain.model.BookSearch
+import org.springframework.data.domain.Page
+import org.springframework.data.domain.Pageable
 
 interface BookRepository {
   fun findByIdOrNull(bookId: String): Book?
   fun findBySeriesId(seriesId: String): Collection<Book>
   fun findAll(): Collection<Book>
   fun findAll(bookSearch: BookSearch): Collection<Book>
+  fun findAll(bookSearch: BookSearch, pageable: Pageable): Page<Book>
 
   fun getLibraryId(bookId: String): String?
   fun findFirstIdInSeries(seriesId: String): String?

komga/src/main/kotlin/org/gotson/komga/infrastructure/jooq/BookDao.kt

@@ -8,6 +8,11 @@ import org.gotson.komga.jooq.tables.records.BookRecord
 import org.jooq.Condition
 import org.jooq.DSLContext
 import org.jooq.impl.DSL
+import org.springframework.data.domain.Page
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+import org.springframework.data.domain.Pageable
+import org.springframework.data.domain.Sort
 import org.springframework.stereotype.Component
 import java.net.URL
 import java.time.LocalDateTime
@@ -22,6 +27,10 @@ class BookDao(
   private val m = Tables.MEDIA
   private val d = Tables.BOOK_METADATA
 
+  private val sorts = mapOf(
+    "createdDate" to b.CREATED_DATE
+  )
+
   override fun findByIdOrNull(bookId: String): Book? =
     findByIdOrNull(dsl, bookId)
 
@@ -52,6 +61,38 @@ class BookDao(
       .fetchInto(b)
       .map { it.toDomain() }
 
+  override fun findAll(bookSearch: BookSearch, pageable: Pageable): Page<Book> {
+    val conditions = bookSearch.toCondition()
+
+    val count = dsl.selectCount()
+      .from(b)
+      .leftJoin(d).on(b.ID.eq(d.BOOK_ID))
+      .leftJoin(m).on(b.ID.eq(m.BOOK_ID))
+      .where(conditions)
+      .fetchOne(0, Long::class.java)
+
+    val orderBy = pageable.sort.toOrderBy(sorts)
+
+
+    val items = dsl.select(*b.fields())
+      .from(b)
+      .leftJoin(d).on(b.ID.eq(d.BOOK_ID))
+      .leftJoin(m).on(b.ID.eq(m.BOOK_ID))
+      .where(conditions)
+      .orderBy(orderBy)
+      .apply { if (pageable.isPaged) limit(pageable.pageSize).offset(pageable.offset) }
+      .fetchInto(b)
+      .map { it.toDomain() }
+
+    val pageSort = if (orderBy.size > 1) pageable.sort else Sort.unsorted()
+    return PageImpl(
+      items,
+      if (pageable.isPaged) PageRequest.of(pageable.pageNumber, pageable.pageSize, pageSort)
+      else PageRequest.of(0, maxOf(count.toInt(), 20), pageSort),
+      count.toLong()
+    )
+  }
+
 
   override fun getLibraryId(bookId: String): String? =
     dsl.select(b.LIBRARY_ID)

komga/src/main/kotlin/org/gotson/komga/interfaces/opds/OpdsController.kt

@@ -36,6 +36,7 @@ import org.gotson.komga.interfaces.opds.dto.OpdsLinkPageStreaming
 import org.gotson.komga.interfaces.opds.dto.OpdsLinkRel
 import org.gotson.komga.interfaces.opds.dto.OpdsLinkSearch
 import org.gotson.komga.interfaces.opds.dto.OpenSearchDescription
+import org.springframework.data.domain.PageRequest
 import org.springframework.data.domain.Sort
 import org.springframework.http.HttpHeaders
 import org.springframework.http.HttpStatus
@@ -60,6 +61,7 @@ private const val ROUTE_BASE = "/opds/v1.2/"
 private const val ROUTE_CATALOG = "catalog"
 private const val ROUTE_SERIES_ALL = "series"
 private const val ROUTE_SERIES_LATEST = "series/latest"
+private const val ROUTE_BOOKS_LATEST = "books/latest"
 private const val ROUTE_LIBRARIES_ALL = "libraries"
 private const val ROUTE_COLLECTIONS_ALL = "collections"
 private const val ROUTE_READLISTS_ALL = "readlists"
@@ -68,6 +70,7 @@ private const val ROUTE_SEARCH = "search"
 
 private const val ID_SERIES_ALL = "allSeries"
 private const val ID_SERIES_LATEST = "latestSeries"
+private const val ID_BOOKS_LATEST = "latestBooks"
 private const val ID_LIBRARIES_ALL = "allLibraries"
 private const val ID_COLLECTIONS_ALL = "allCollections"
 private const val ID_READLISTS_ALL = "allReadLists"
@@ -123,6 +126,13 @@ class OpdsController(
         content = "Browse latest series",
         link = OpdsLinkFeedNavigation(OpdsLinkRel.SUBSECTION, "$routeBase$ROUTE_SERIES_LATEST")
       ),
+      OpdsEntryNavigation(
+        title = "Latest books",
+        updated = ZonedDateTime.now(),
+        id = ID_BOOKS_LATEST,
+        content = "Browse latest books",
+        link = OpdsLinkFeedNavigation(OpdsLinkRel.SUBSECTION, "$routeBase$ROUTE_BOOKS_LATEST")
+      ),
       OpdsEntryNavigation(
         title = "All libraries",
         updated = ZonedDateTime.now(),
@@ -223,6 +233,35 @@ class OpdsController(
     )
   }
 
+  @GetMapping(ROUTE_BOOKS_LATEST)
+  fun getLatestBooks(
+    @AuthenticationPrincipal principal: KomgaPrincipal,
+    @RequestHeader(name = HttpHeaders.USER_AGENT, required = false, defaultValue = "") userAgent: String
+  ): OpdsFeed {
+    val bookSearch = BookSearch(
+      libraryIds = principal.user.getAuthorizedLibraryIds(null),
+      mediaStatus = setOf(Media.Status.READY)
+    )
+    val pageRequest = PageRequest.of(0, 50, Sort.by(Sort.Order.desc("createdDate")))
+
+    val entries = bookRepository.findAll(bookSearch, pageRequest)
+      .map { BookWithInfo(it, mediaRepository.findById(it.id), bookMetadataRepository.findById(it.id)) }
+      .content
+      .map { it.toOpdsEntry(shouldPrependBookNumbers(userAgent)) }
+
+    return OpdsFeedAcquisition(
+      id = ID_BOOKS_LATEST,
+      title = "Latest books",
+      updated = ZonedDateTime.now(),
+      author = komgaAuthor,
+      links = listOf(
+        OpdsLinkFeedNavigation(OpdsLinkRel.SELF, "$routeBase$ROUTE_BOOKS_LATEST"),
+        linkStart
+      ),
+      entries = entries
+    )
+  }
+
   @GetMapping(ROUTE_LIBRARIES_ALL)
   fun getLibraries(
     @AuthenticationPrincipal principal: KomgaPrincipal