pageta-native/Sources/Features/PagetaSearchView.swift

import ManaAuthUI
import ManaComponentsUI
import ManaCore
import SwiftUI

/// Inhalt des iOS-26-Such-Tabs (`Tab(role: .search)` in ``RootView``). Sucht
/// die gespeicherten Artikel **lokal** über Titel/Quelle/Anriss und nutzt die
/// geteilte ``ManaSearchResultsView``. Eigener `NavigationStack` +
/// `navigationDestination` → Treffer öffnen das Lese-Detail im Such-Tab. Auf
/// iOS 26 rendert `.searchable` als unten schwebendes Liquid-Glass-Suchfeld.
///
/// Die Suche lag bis 2026-06-06 inline (`.searchable`) in ``LeseListeTabView``;
/// sie ist mit dem flottenweiten Such-Tab-Rollout hierher gewandert (siehe
/// ../mana/docs/playbooks/SEARCH_TAB_ROLLOUT.md).
struct PagetaSearchView: View {
	var accountProfile: ProfileInfo?
	var onAccountTap: () -> Void = {}

	@Environment(AuthClient.self) private var auth
	private var api: PagetaAPI {
		PagetaAPI(auth: auth)
	}

	@State private var articles: [Article] = []
	@State private var query = ""
	@State private var searchPresented = false

	/// Volltext-Match über Titel/Quelle/Anriss. Leerer Query matcht nichts —
	/// im Such-Tab zeigen wir bei leerer Eingabe den Prompt, nicht alle Artikel.
	private var hits: [Article] {
		let trimmed = query.trimmingCharacters(in: .whitespacesAndNewlines).lowercased()
		guard !trimmed.isEmpty else { return [] }
		return articles.filter { article in
			if article.title.lowercased().contains(trimmed) { return true }
			if let site = article.siteName?.lowercased(), site.contains(trimmed) { return true }
			if let excerpt = article.excerpt?.lowercased(),
			   excerpt.contains(trimmed) { return true }
			return false
		}
	}

	var body: some View {
		NavigationStack {
			ManaSearchResultsView(
				query: query,
				hasResults: !hits.isEmpty,
				prompt: PagetaStrings.searchPlaceholder
			) {
				List {
					ForEach(hits) { article in
						NavigationLink(value: article.id) {
							ArticleRow(article: article)
						}
						.listRowInsets(EdgeInsets(top: 6, leading: 16, bottom: 6, trailing: 16))
						.listRowSeparator(.hidden)
					}
				}
				.listStyle(.plain)
				.macReadingWidth()
			}
			.navigationTitle(PagetaStrings.actionSearch)
			#if os(iOS)
				.navigationBarTitleDisplayMode(.inline)
				.manaAccountToolbar(auth: auth, profile: accountProfile, onTap: onAccountTap)
			#endif
				.navigationDestination(for: String.self) { articleId in
					ArticleDetailView(articleId: articleId)
				}
				.paperBackground()
		}
		.searchable(text: $query, isPresented: $searchPresented, prompt: PagetaStrings.searchPlaceholder)
		.onAppear { searchPresented = true }
		.task {
			if articles.isEmpty {
				await loadArticles()
			}
		}
	}

	private func loadArticles() async {
		// Alle nicht-archivierten Artikel — dieselbe Quelle wie die Lese-Liste.
		guard let all = try? await api.fetchArticles(limit: 200) else { return }
		articles = all.filter { $0.status != .archived }
	}
}