From 9ddf86453aa29059415cf2ad4ce684a798071807 Mon Sep 17 00:00:00 2001
From: Muhammad Khubaib Imtiaz <18.bscs.803@gmail.com>
Date: Fri, 21 Jun 2024 08:49:36 +0500
Subject: [PATCH] -Multiple Products Endpoint Imp (#186)

---
 .../repository/product/ProductRepository.kt   |  6 +++++
 src/main/kotlin/com/example/plugins/Routes.kt | 25 +++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/src/main/kotlin/com/example/domain/repository/product/ProductRepository.kt b/src/main/kotlin/com/example/domain/repository/product/ProductRepository.kt
index 1ead137..b1a8b0f 100644
--- a/src/main/kotlin/com/example/domain/repository/product/ProductRepository.kt
+++ b/src/main/kotlin/com/example/domain/repository/product/ProductRepository.kt
@@ -69,6 +69,12 @@ class ProductRepository : ProductDao {
         }
     }
 
+    suspend fun getProductsByMultipleIds(ids: List<Long>): List<Product>? {
+        return DatabaseFactory.dbQuery {
+            ProductTable.select { ProductTable.id inList ids }
+                .mapNotNull { rowToResult(it) }
+        }
+    }
 
     override suspend fun getAllProducts(): List<Product>? {
         return DatabaseFactory.dbQuery {
diff --git a/src/main/kotlin/com/example/plugins/Routes.kt b/src/main/kotlin/com/example/plugins/Routes.kt
index b74b587..2e1ced6 100644
--- a/src/main/kotlin/com/example/plugins/Routes.kt
+++ b/src/main/kotlin/com/example/plugins/Routes.kt
@@ -1098,6 +1098,31 @@ fun Route.products(
         }
     }
 
+    get("v1/products/multiple") {
+        val idsString = call.request.queryParameters["ids"]
+        if (idsString.isNullOrBlank()) {
+            call.respond(HttpStatusCode.BadRequest, "No product IDs provided")
+            return@get
+        }
+
+        val ids = idsString.split(",").mapNotNull { it.toLongOrNull() }
+        if (ids.isEmpty()) {
+            call.respond(HttpStatusCode.BadRequest, "Invalid product IDs provided")
+            return@get
+        }
+
+        try {
+            val products = db.getProductsByMultipleIds(ids)
+            if (products.isNullOrEmpty()) {
+                call.respond(HttpStatusCode.NotFound, "No products found for the provided IDs")
+            } else {
+                call.respond(HttpStatusCode.OK, products)
+            }
+        } catch (e: Exception) {
+            call.respond(HttpStatusCode.InternalServerError, "Error while fetching products: ${e.message}")
+        }
+    }
+
     put("v1/products/{id}") {
         val id = call.parameters["id"]?.toLongOrNull() ?: return@put call.respondText(
             text = "Invalid or Missing Product ID",