Outpost/Outpost/Features/Search/DocumentTitleSearchViewModel.swift

import Foundation
import Observation
import OutlineKit

/// Backs the contextual toolbar search — matches scoped to whichever collection
/// is currently open ("search what you're looking at").
///
/// Uses `documents.search` rather than `documents.search_titles`: the latter
/// consistently failed against the connected server (likely unavailable on
/// this Outline version — see ARCHITECTURE.md's note on server version drift),
/// while `documents.search` is the same, longer-established endpoint the
/// sidebar's global search already relies on.
@MainActor
@Observable
final class DocumentTitleSearchViewModel {
    var results: [OutlineDocumentSearchResult] = []
    var isSearching = false
    var errorMessage: String?

    private let apiClient: OutlineAPIClient
    private let collectionId: String

    init(apiClient: OutlineAPIClient, collectionId: String) {
        self.apiClient = apiClient
        self.collectionId = collectionId
    }

    func search(query: String) async {
        let trimmed = query.trimmingCharacters(in: .whitespacesAndNewlines)
        guard !trimmed.isEmpty else {
            results = []
            errorMessage = nil
            return
        }

        isSearching = true
        errorMessage = nil
        defer { isSearching = false }

        do {
            results = try await apiClient.searchDocuments(
                DocumentSearchRequest(query: trimmed, collectionId: collectionId)
            )
        } catch {
            errorMessage = outlineErrorMessage(error, fallback: "Search failed. Try again.")
        }
    }
}