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+//
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+// LNRoomBannerView.swift
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+// Gami
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+//
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+// Created by SuperC on 2026/4/9.
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+//
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+
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+import Foundation
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+import UIKit
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+import SnapKit
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+
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+class LNRoomBannerView: UIView {
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+ var onTapBanner: ((_ item: LNBannerInfoVO, _ index: Int) -> Void)?
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+
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+ private let pagerView = LNCyclePager()
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+ private let pageControl = LNCyclePageControl()
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+ private var items: [LNBannerInfoVO] = []
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+ private var loading = false
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+ private var loaded = false
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+
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+ override init(frame: CGRect) {
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+ super.init(frame: frame)
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+ setupViews()
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+ setupPager()
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+ }
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+
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+ required init?(coder: NSCoder) {
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+ super.init(coder: coder)
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+ setupViews()
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+ setupPager()
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+ }
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+
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+ func loadBanner(adSlot: Int = 2, force: Bool = false) {
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+ if loading { return }
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+ if loaded && !force { return }
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+ loading = true
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+ LNConfigManager.shared.getBannerList(adSlot: adSlot) { [weak self] list in
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+ guard let self else { return }
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+ self.loading = false
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+ self.loaded = true
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+ self.update(items: list ?? [])
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+ }
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+ }
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+
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+ func update(items: [LNBannerInfoVO]) {
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+ self.items = items
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+ isHidden = items.isEmpty
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+ pageControl.numberOfPages = items.count
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+ pageControl.currentPage = 0
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+ pageControl.isHidden = items.count <= 1
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+ pagerView.reloadData()
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+ }
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+}
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+
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+private extension LNRoomBannerView {
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+ func setupViews() {
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+ isHidden = true
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+ self.backgroundColor = .clear
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+
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+ addSubview(pagerView)
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+ pagerView.snp.makeConstraints { make in
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+ make.top.leading.trailing.equalToSuperview()
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+ make.bottom.equalToSuperview().offset(-12)
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+ }
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+
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+ pagerView.addSubview(pageControl)
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+ pageControl.snp.makeConstraints { make in
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+ make.centerX.equalToSuperview()
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+ make.bottom.equalToSuperview()
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+ make.height.equalTo(4)
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+ }
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+ }
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+
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+ func setupPager() {
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+ pagerView.layer.masksToBounds = true
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+ pagerView.layer.cornerRadius = 16
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+ pagerView.isInfiniteLoop = true
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+ pagerView.autoScrollInterval = 3
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+ pagerView.reloadDataNeedResetIndex = true
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+ pagerView.bindPageControl(pageControl)
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+
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+ pagerView.register(LNRoomBannerImageCell.self, forCellWithReuseIdentifier: LNRoomBannerImageCell.className)
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+ pagerView.numberOfItemsProvider = { [weak self] in
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+ self?.items.count ?? 0
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+ }
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+ pagerView.cellProvider = { [weak self] pager, index in
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+ guard let self else { return UICollectionViewCell() }
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+ let cell = pager.dequeueReusableCell(
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+ withReuseIdentifier: LNRoomBannerImageCell.className,
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+ for: index
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+ ) as! LNRoomBannerImageCell
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+ cell.update(items[index])
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+ return cell
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+ }
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+ pagerView.layoutProvider = { [weak self] in
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+ let layout = LNCyclePagerViewLayout()
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+ layout.itemSize = self?.pagerView.bounds.size ?? .zero
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+ layout.itemSpacing = 0
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+ layout.scrollDirection = .horizontal
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+ layout.layoutType = .normal
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+ return layout
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+ }
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+ pagerView.didScrollFromIndexToIndex = { [weak self] _, toIndex in
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+ self?.pageControl.currentPage = toIndex
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+ }
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+ pagerView.didSelectItem = { [weak self] _, index in
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+ guard let self, index >= 0, index < self.items.count else { return }
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+ let item = self.items[index]
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+ self.onTapBanner?(item, index)
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+ guard !item.jump.isEmpty else { return }
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+ self.pushToWebView(.init(url: item.jump))
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+ }
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+
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+ pageControl.pageIndicatorSize = CGSize(width: 4, height: 4)
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+ pageControl.currentPageIndicatorSize = CGSize(width: 4, height: 4)
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+ pageControl.pageIndicatorTintColor = .init(hex: "#FFFFFF4D")
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+ pageControl.currentPageIndicatorTintColor = .white
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+ pageControl.pageIndicatorSpacing = 5
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+ }
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+}
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+
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+private final class LNRoomBannerImageCell: UICollectionViewCell {
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+ private let imageView = UIImageView()
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+
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+ override init(frame: CGRect) {
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+ super.init(frame: frame)
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+ contentView.layer.masksToBounds = true
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+ contentView.layer.cornerRadius = 12
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+
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+ imageView.layer.masksToBounds = true
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+ imageView.layer.cornerRadius = 16
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+ imageView.contentMode = .scaleAspectFill
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+ contentView.addSubview(imageView)
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+ imageView.snp.makeConstraints { make in
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+ make.edges.equalToSuperview()
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+ }
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+ }
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+
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+ required init?(coder: NSCoder) {
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+ fatalError("init(coder:) has not been implemented")
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+ }
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+
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+ override func prepareForReuse() {
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+ super.prepareForReuse()
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+ imageView.image = nil
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+ }
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+
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+ func update(_ item: LNBannerInfoVO) {
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+ imageView.sd_setImage(with: URL(string: item.img))
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+ }
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+}
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