Add new convert module and sketch its integration

build.sbt

@@ -173,6 +173,17 @@ val text = project.in(file("modules/text")).
       Dependencies.tika ++
       Dependencies.stanfordNlpCore
   ).dependsOn(common)
+
+val convert = project.in(file("modules/convert")).
+  disablePlugins(RevolverPlugin).
+  settings(sharedSettings).
+  settings(testSettings).
+  settings(
+    name := "docspell-convert",
+    libraryDependencies ++=
+      Dependencies.pdfbox ++
+      Dependencies.flexmark
+  ).dependsOn(common)
   
 val restapi = project.in(file("modules/restapi")).
   disablePlugins(RevolverPlugin).
@@ -226,7 +237,7 @@ val joex = project.in(file("modules/joex")).
     addCompilerPlugin(Dependencies.betterMonadicFor),
     buildInfoPackage := "docspell.joex",
     reStart/javaOptions ++= Seq(s"-Dconfig.file=${(LocalRootProject/baseDirectory).value/"local"/"dev.conf"}")
-  ).dependsOn(store, text, joexapi, restapi)
+  ).dependsOn(store, text, convert, joexapi, restapi)
 
 val backend = project.in(file("modules/backend")).
   disablePlugins(RevolverPlugin).
@@ -357,6 +368,7 @@ val root = project.in(file(".")).
   ).
   aggregate(common
     , text
+    , convert
     , store
     , joexapi
     , joex

modules/convert/src/main/scala/docspell/convert/Conversion.scala

@@ -0,0 +1,24 @@
+package docspell.convert
+
+import fs2._
+import cats.effect._
+import docspell.common._
+
+trait Conversion[F[_]] {
+
+  def toPDF(inType: MimeType): Pipe[F, Byte, Byte]
+
+}
+
+object Conversion {
+
+  def create[F[_]: Sync](cfg: ConvertConfig): Resource[F, Conversion[F]] =
+    Resource.pure(new Conversion[F] {
+
+      def toPDF(inType: MimeType): Pipe[F, Byte, Byte] = {
+        println(cfg)
+        ???
+      }
+
+    })
+}

modules/convert/src/main/scala/docspell/convert/ConvertConfig.scala

@@ -0,0 +1,3 @@
+package docspell.convert
+
+case class ConvertConfig()

modules/joex/src/main/scala/docspell/joex/Config.scala

@@ -4,6 +4,7 @@ import docspell.common.{Ident, LenientUri}
 import docspell.joex.scheduler.SchedulerConfig
 import docspell.store.JdbcConfig
 import docspell.text.ocr.{Config => OcrConfig}
+import docspell.convert.ConvertConfig
 
 case class Config(
     appId: Ident,
@@ -11,17 +12,10 @@ case class Config(
     bind: Config.Bind,
     jdbc: JdbcConfig,
     scheduler: SchedulerConfig,
-    extraction: OcrConfig
+    extraction: OcrConfig,
+    convert: ConvertConfig
 )
 
 object Config {
-  val postgres =
-    JdbcConfig(LenientUri.unsafe("jdbc:postgresql://localhost:5432/docspelldev"), "dev", "dev")
-  val h2 = JdbcConfig(
-    LenientUri.unsafe("jdbc:h2:./target/docspelldev.db;MODE=PostgreSQL;DATABASE_TO_LOWER=TRUE"),
-    "sa",
-    ""
-  )
-
   case class Bind(address: String, port: Int)
 }

modules/joex/src/main/scala/docspell/joex/JoexAppImpl.scala

@@ -55,7 +55,7 @@ object JoexAppImpl {
               .withTask(
                 JobTask.json(
                   ProcessItemArgs.taskName,
-                  ItemHandler[F](cfg.extraction),
+                  ItemHandler[F](cfg),
                   ItemHandler.onCancel[F]
                 )
               )

modules/joex/src/main/scala/docspell/joex/process/ConvertPdf.scala

@@ -7,6 +7,7 @@ import cats.effect._
 import cats.data.OptionT
 
 import docspell.common._
+import docspell.convert._
 import docspell.joex.scheduler._
 import docspell.store.records._
 
@@ -27,17 +28,17 @@ import docspell.store.records._
 object ConvertPdf {
 
   def apply[F[_]: Sync: ContextShift](
+      cfg: ConvertConfig,
       item: ItemData
   ): Task[F, ProcessItemArgs, ItemData] =
     Task { ctx =>
-
       // get mimetype
       //   try to convert
       //   save to db
       //   update file_id of RAttachment
 
       def convert(ra: RAttachment) =
-        findMime(ctx)(ra).flatMap(m => convertSafe(ctx)(ra, m))
+        findMime(ctx)(ra).flatMap(m => convertSafe(cfg, ctx)(ra, m))
 
       for {
         ras <- item.attachments.traverse(convert)
@@ -51,10 +52,12 @@ object ConvertPdf {
       .getOrElse(Mimetype.`application/octet-stream`)
 
   def convertSafe[F[_]: Sync](
+      cfg: ConvertConfig,
       ctx: Context[F, ProcessItemArgs]
-  )(ra: RAttachment, mime: Mimetype): F[RAttachment] = {
-
-    ctx.logger.info(s"File ${ra.name} has mime ${mime.asString}").
-      map(_ => ra)
-  }
+  )(ra: RAttachment, mime: Mimetype): F[RAttachment] =
+    Conversion.create[F](cfg).use { conv =>
+      ctx.logger
+        .info(s"File ${ra.name} has mime ${mime.asString}. conv=$conv")
+        .map(_ => ra)
+    }
 }

modules/joex/src/main/scala/docspell/joex/process/ItemHandler.scala

@@ -3,16 +3,16 @@ package docspell.joex.process
 import cats.implicits._
 import cats.effect.{ContextShift, Sync}
 import docspell.common.{ItemState, ProcessItemArgs}
+import docspell.joex.Config
 import docspell.joex.scheduler.{Context, Task}
 import docspell.store.queries.QItem
 import docspell.store.records.{RItem, RJob}
-import docspell.text.ocr.{Config => OcrConfig}
 
 object ItemHandler {
   def onCancel[F[_]: Sync: ContextShift]: Task[F, ProcessItemArgs, Unit] =
     logWarn("Now cancelling. Deleting potentially created data.").flatMap(_ => deleteByFileIds)
 
-  def apply[F[_]: Sync: ContextShift](cfg: OcrConfig): Task[F, ProcessItemArgs, Unit] =
+  def apply[F[_]: Sync: ContextShift](cfg: Config): Task[F, ProcessItemArgs, Unit] =
     CreateItem[F]
       .flatMap(itemStateTask(ItemState.Processing))
       .flatMap(safeProcess[F](cfg))
@@ -30,7 +30,7 @@ object ItemHandler {
     } yield last
 
   def safeProcess[F[_]: Sync: ContextShift](
-      cfg: OcrConfig
+      cfg: Config
   )(data: ItemData): Task[F, ProcessItemArgs, ItemData] =
     Task(isLastRetry[F, ProcessItemArgs] _).flatMap {
       case true =>

modules/joex/src/main/scala/docspell/joex/process/ProcessItem.scala

@@ -3,15 +3,15 @@ package docspell.joex.process
 import cats.effect.{ContextShift, Sync}
 import docspell.common.ProcessItemArgs
 import docspell.joex.scheduler.Task
-import docspell.text.ocr.{Config => OcrConfig}
+import docspell.joex.Config
 
 object ProcessItem {
 
   def apply[F[_]: Sync: ContextShift](
-      cfg: OcrConfig
+      cfg: Config
   )(item: ItemData): Task[F, ProcessItemArgs, ItemData] =
-    ConvertPdf(item)
-      .flatMap(TextExtraction(cfg, _))
+    ConvertPdf(cfg.convert, item)
+      .flatMap(TextExtraction(cfg.extraction, _))
       .flatMap(Task.setProgress(25))
       .flatMap(TextAnalysis[F])
       .flatMap(Task.setProgress(50))

project/Dependencies.scala

@@ -11,6 +11,7 @@ object Dependencies {
   val DoobieVersion = "0.8.8"
   val EmilVersion = "0.2.0"
   val FastparseVersion = "2.1.3"
+  val FlexmarkVersion = "0.60.2"
   val FlywayVersion = "6.2.2"
   val Fs2Version = "2.2.2"
   val H2Version = "1.4.200"
@@ -20,6 +21,7 @@ object Dependencies {
   val LogbackVersion = "1.2.3"
   val MariaDbVersion = "2.5.4"
   val MiniTestVersion = "2.7.0"
+  val PdfboxVersion = "2.0.18"
   val PostgresVersion = "42.2.10"
   val PureConfigVersion = "0.12.2"
   val SqliteVersion = "3.30.1"
@@ -30,6 +32,24 @@ object Dependencies {
   val SemanticUIVersion = "2.4.1"
   val JQueryVersion = "3.4.1"
   val ViewerJSVersion = "0.5.8"
+  
+  // https://github.com/vsch/flexmark-java
+  // BSD 2-Clause
+  val flexmark = Seq(
+    "com.vladsch.flexmark" % "flexmark" % FlexmarkVersion,
+    "com.vladsch.flexmark" % "flexmark-ext-tables" % FlexmarkVersion,
+    "com.vladsch.flexmark" % "flexmark-ext-gfm-strikethrough" % FlexmarkVersion
+  ).map(_.excludeAll(
+    ExclusionRule("junit"),
+    ExclusionRule("hamcrest-core")
+  ))
+
+  val pdfbox = Seq(
+    "org.apache.pdfbox" % "pdfbox" % PdfboxVersion excludeAll(
+      ExclusionRule("commons-logging"),
+      ExclusionRule("org.bouncycastle")
+    )
+  )
 
   val emil = Seq(
     "com.github.eikek" %% "emil-common" % EmilVersion,