[feature] update get by page logic & update paging utils

src/main/java/com/ffii/core/response/RecordsRes.java

@@ -17,7 +17,7 @@ public class RecordsRes<T> {
     this.records = records;
   }
 
-  public RecordsRes(List<T> records, int total) {
+  public RecordsRes(List<T> records, Integer total) {
     this.records = records;
     this.total = total;
   }

src/main/java/com/ffii/core/utils/PagingUtils.java

@@ -0,0 +1,38 @@
+package com.ffii.core.utils;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * MapUtils
+ *
+ * @author Jason Lam
+ */
+
+public class PagingUtils {
+
+    /**
+     * Create target sub list from a full list
+     *
+     * @param fullList
+     *            List to be split
+     * @param pageSize
+     *            targeted record per page
+     * @param pageNum
+     *            targeted page to be display
+     *
+     * @return List
+     */
+    public static <T> List<T> getPaginatedList(List<T> fullList, int pageSize, int pageNum) {
+        // Calculate the start and end indices for subList
+        int startIndex = (pageNum - 1) * pageSize;
+        int endIndex = Math.min(startIndex + pageSize, fullList.size());
+
+        // Ensure we don't go out of bounds
+        if (startIndex < fullList.size()) {
+            return fullList.subList(startIndex, endIndex);
+        } else {
+            return Collections.emptyList(); // Return empty list if start index is out of bounds
+        }
+    }
+}

src/main/java/com/ffii/fpsms/modules/master/service/ItemsService.kt

@@ -2,6 +2,7 @@ package com.ffii.fpsms.modules.master.service
 
 import com.ffii.core.support.AbstractBaseEntityService
 import com.ffii.core.support.JdbcDao
+import com.ffii.fpsms.modules.master.dto.ItemFilterRequestDTO
 import com.ffii.fpsms.modules.master.entity.*
 import com.ffii.fpsms.modules.master.web.models.ItemQc
 import com.ffii.fpsms.modules.master.web.models.ItemWithQcResponse
@@ -10,7 +11,6 @@ import com.ffii.fpsms.modules.master.web.models.NewItemRequest
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 import java.io.IOException
-import kotlin.jvm.optionals.getOrNull
 
 @Service
 open class ItemsService(
@@ -25,7 +25,30 @@ open class ItemsService(
         val items = itemsRepository.findAll()
         return items
     }
-    
+
+    open fun getItemsByPage(args: Map<String, Any>): List<Map<String, Any>>  {
+        // Extract parameters from the DTO
+        val sql = StringBuilder(
+            "SELECT " +
+            "i.id, " +
+            "i.code, " +
+            "i.name, " +
+            "i.description " +
+            "FROM items i " +
+            "WHERE i.deleted = FALSE"
+        );
+
+        if (args.containsKey("name")){
+            sql.append(" AND i.name like :name ");
+        }
+
+        if (args.containsKey("code")){
+            sql.append(" AND i.code like :code ");
+        }
+
+        return jdbcDao.queryForList(sql.toString(), args);
+    }
+
     // QcCheck included item
     open fun getItem(id: Long): ItemWithQcResponse {
         val list = listOf(1,2)

src/main/java/com/ffii/fpsms/modules/master/web/ItemsController.kt

@@ -1,13 +1,19 @@
 package com.ffii.fpsms.modules.master.web
 
 import com.ffii.core.exception.NotFoundException
+import com.ffii.core.response.RecordsRes
+import com.ffii.core.utils.CriteriaArgsBuilder
+import com.ffii.core.utils.PagingUtils
+import com.ffii.fpsms.modules.master.dto.ItemFilterRequestDTO
 import com.ffii.fpsms.modules.master.entity.Items
 import com.ffii.fpsms.modules.master.service.ItemsService
 import com.ffii.fpsms.modules.master.web.models.ItemWithQcResponse
 import com.ffii.fpsms.modules.master.web.models.MessageResponse
 import com.ffii.fpsms.modules.master.web.models.NewItemRequest
+import jakarta.servlet.http.HttpServletRequest
 import jakarta.validation.Valid
 import org.springframework.web.bind.annotation.*
+import java.util.Collections.emptyList
 
 @RestController
 @RequestMapping("/items")
@@ -18,6 +24,40 @@ class ItemsController(
     fun allItems(): List<Items> {
         return itemsService.allItems()
     }
+
+//    @GetMapping("/getRecordByPage")
+//    fun getAllItemsByPage(@RequestBody filterRequest: HttpServletRequest): RecordsRes<Map<String, Any>> {
+//        val pageSize = filterRequest.getParameter("pageSize").toString().toInt(); // Default to 10 if not provided
+//        val pageNumber = filterRequest.getParameter("pageNum").toString().toInt(); // Default to 0 if not provided
+//        val criteriaArgs = CriteriaArgsBuilder.withRequest(filterRequest)
+//            .addStringLike("name")
+//            .build();
+//
+//        val fullList = itemsService.getItemsByPage(criteriaArgs)?.subList(pageSize*pageNumber+1, pageSize*pageNumber+pageSize)
+//        val outputList = fullList?.subList(pageSize*pageNumber+1, pageSize*pageNumber+pageSize)
+//
+//        return RecordsRes(outputList as List<Map<String, Any>>?, fullList?.size)
+//    }
+
+    @GetMapping("/getRecordByPage")
+    fun getAllItemsByPage(
+        request: HttpServletRequest
+    ): RecordsRes<Map<String, Any>> {
+        val criteriaArgs = CriteriaArgsBuilder.withRequest(request)
+            .addStringLike("name")
+            .addStringLike("code")
+            .build()
+
+        val pageSize = request.getParameter("pageSize")?.toIntOrNull() ?: 10 // Default to 10 if not provided
+        val pageNum = request.getParameter("pageNum")?.toIntOrNull() ?: 1 // Default to 1 if not provided
+
+        val fullList = itemsService.getItemsByPage(criteriaArgs) ?: emptyList()
+
+        val paginatedList = PagingUtils.getPaginatedList(fullList,pageSize, pageNum)
+
+        return RecordsRes(paginatedList as List<Map<String, Any>>, fullList.size)
+    }
+
     @GetMapping("/details/{id}")
     fun getItems(@PathVariable id: Long): ItemWithQcResponse {
         return itemsService.getItem(id)