Refactor: HomeViewController에 있던 Compositional layout Section 생성 코드 확장

- 유틸성 있게 만들기 위해서는 아이템 개수, 아이템 높이 및 너비까지 파라미터로 받아서 처리해야 할 것

Nagaza/Sources/Presentation/Utils/Extensions/UICollectionViewCompositionalLayout+.swift

@@ -0,0 +1,125 @@
+//
+//  UICollectionViewCompositionalLayout+.swift
+//  Nagaza
+//
+//  Created by SeungMin on 1/23/24.
+//
+
+import UIKit
+
+struct ElementKind {
+    static let badge = "badge-element-kind"
+    static let background = "background-element-kind"
+    static let sectionHeader = "section-header-element-kind"
+    static let sectionFooter = "section-footer-element-kind"
+    static let layoutHeader = "layout-header-element-kind"
+    static let layoutFooter = "layout-footer-element-kind"
+}
+
+extension UICollectionViewCompositionalLayout {
+    static func listLayout(withEstimatedHeight estimatedHeight: CGFloat = 100) -> UICollectionViewCompositionalLayout {
+
+        return UICollectionViewCompositionalLayout(section: .listSection(withEstimatedHeight: estimatedHeight))
+    }
+
+    static func listLayoutAutomaticHeight(withEstimatedHeight estimatedHeight: CGFloat = 100) -> UICollectionViewCompositionalLayout {
+
+        return UICollectionViewCompositionalLayout(section:
+                .listEstimatedHeightSection(withEstimatedHeight: estimatedHeight))
+    }
+}
+
+extension NSCollectionLayoutSection {
+    static func listSection(withEstimatedHeight estimatedHeight: CGFloat = 100) -> NSCollectionLayoutSection {
+        let itemWidth: CGFloat = 100
+        let itemCount = 10
+
+        let itemSize = NSCollectionLayoutSize(
+            widthDimension: .fractionalWidth(1.0),
+            heightDimension: .fractionalHeight(1.0)
+        )
+        let item = NSCollectionLayoutItem(layoutSize: itemSize)
+
+        let groupSize = NSCollectionLayoutSize(
+            widthDimension: .absolute(itemWidth * CGFloat(itemCount)),
+            heightDimension: .estimated(estimatedHeight)
+        )
+
+        let group = NSCollectionLayoutGroup.horizontal(
+            layoutSize: groupSize, 
+            subitem: item,
+            count: itemCount
+        )
+        group.interItemSpacing = .fixed(16)
+
+        let sectionHeaderSize = NSCollectionLayoutSize(
+            widthDimension: .fractionalWidth(1.0),
+            heightDimension: .absolute(45))
+
+        let sectionHeader = NSCollectionLayoutBoundarySupplementaryItem(
+            layoutSize: sectionHeaderSize,
+            elementKind: ElementKind.sectionHeader,
+            alignment: .top
+        )
+
+        let section = NSCollectionLayoutSection(group: group)
+        section.contentInsets = NSDirectionalEdgeInsets(
+            top: 0,
+            leading: 20,
+            bottom: 0,
+            trailing: 20
+        )
+//        section.interGroupSpacing = 20 // 적용이 안 됨
+        section.boundarySupplementaryItems = [sectionHeader]
+        section.orthogonalScrollingBehavior = .continuousGroupLeadingBoundary
+
+        return section
+    }
+
+    static func listEstimatedHeightSection(withEstimatedHeight estimatedHeight: CGFloat = 100) -> NSCollectionLayoutSection {
+        let itemWidth: CGFloat = 100
+        let itemCount = 10
+
+        let itemSize = NSCollectionLayoutSize(
+            widthDimension: .fractionalWidth(1.0),
+            heightDimension: .estimated(estimatedHeight)
+        )
+        let item = NSCollectionLayoutItem(layoutSize: itemSize)
+
+        let groupSize = NSCollectionLayoutSize(
+            widthDimension: .absolute(itemWidth * CGFloat(itemCount)),
+            heightDimension: .estimated(estimatedHeight)
+        )
+
+        let group = NSCollectionLayoutGroup.horizontal(
+            layoutSize: groupSize,
+            subitem: item,
+            count: itemCount
+        )
+        group.interItemSpacing = .fixed(16)
+
+        let sectionHeaderSize = NSCollectionLayoutSize(
+            widthDimension: .fractionalWidth(1.0),
+            heightDimension: .absolute(45))
+
+        let sectionHeader = NSCollectionLayoutBoundarySupplementaryItem(
+            layoutSize: sectionHeaderSize,
+            elementKind: ElementKind.sectionHeader,
+            alignment: .top
+        )
+
+        let section = NSCollectionLayoutSection(group: group)
+        section.contentInsets = NSDirectionalEdgeInsets(
+            top: 0,
+            leading: 20,
+            bottom: 0,
+            trailing: 20
+        )
+//        section.interGroupSpacing = 20 // 적용이 안 됨
+        section.boundarySupplementaryItems = [sectionHeader]
+        section.orthogonalScrollingBehavior = .continuousGroupLeadingBoundary
+
+        return section
+    }
+}
+