Added anaylitics controller, service and dto.

src/main/kotlin/com/github/nenadjakic/ocr/studio/controller/AnalyticsController.kt

@@ -0,0 +1,42 @@
+package com.github.nenadjakic.ocr.studio.controller
+
+import com.github.nenadjakic.ocr.studio.dto.StatusCount
+import com.github.nenadjakic.ocr.studio.service.AnalyticsService
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.responses.ApiResponse
+import io.swagger.v3.oas.annotations.responses.ApiResponses
+import io.swagger.v3.oas.annotations.tags.Tag
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@Tag(name = "Analytics controller", description = "API endpoints for analytics.")
+@RestController
+@RequestMapping("/analytics")
+class AnalyticsController(private val analyticsService: AnalyticsService) {
+
+    @Operation(
+        operationId = "getCountByStatus",
+        summary = "Get count by status.",
+        description = "Returns count by status information.")
+    @ApiResponses(
+        value = [
+            ApiResponse(responseCode = "200", description = "Successfully retrieved count by status.")
+        ]
+    )
+    @GetMapping(value = ["/count-by-status"], produces = [org.springframework.http.MediaType.APPLICATION_JSON_VALUE])
+    fun getCountByStatus(): ResponseEntity<List<StatusCount>> = ResponseEntity.ok(analyticsService.getCountByStatus())
+
+    @Operation(
+        operationId = "getAverageInDocuments",
+        summary = "Get average count across inDocuments.",
+        description = "Returns average count across inDocuments.")
+    @ApiResponses(
+        value = [
+            ApiResponse(responseCode = "200", description = "Successfully retrieved average count across inDocuments.")
+        ]
+    )
+    @GetMapping(value = ["/average-in-documents"], produces = [org.springframework.http.MediaType.APPLICATION_JSON_VALUE])
+    fun getAverageInDocuments(): ResponseEntity<Long> = ResponseEntity.ok(analyticsService.getAverageInDocuments())
+}

src/main/kotlin/com/github/nenadjakic/ocr/studio/dto/StatusCount.kt

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+package com.github.nenadjakic.ocr.studio.dto
+
+import com.github.nenadjakic.ocr.studio.entity.Status
+
+data class StatusCount(
+    val status: Status,
+    val count: Long
+)

src/main/kotlin/com/github/nenadjakic/ocr/studio/service/AnalyticsService.kt

@@ -0,0 +1,14 @@
+package com.github.nenadjakic.ocr.studio.service
+
+import com.github.nenadjakic.ocr.studio.dto.StatusCount
+import com.github.nenadjakic.ocr.studio.repository.TaskRepository
+import org.springframework.stereotype.Service
+
+@Service
+class AnalyticsService(
+    private val taskRepository: TaskRepository
+) {
+    fun getCountByStatus(): List<StatusCount> = taskRepository.countTasksByStatus()
+
+    fun getAverageInDocuments(): Long = taskRepository.averageInDocuments()
+}