/*
 * Copyright (c) 2010-2023 Belledonne Communications SARL.
 *
 * This file is part of linphone-iphone
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import linphonesw

final class MagicSearchSingleton: ObservableObject {
	
	static let shared = MagicSearchSingleton()
	private var coreContext = CoreContext.shared
	
	private var magicSearch: MagicSearch!
	var magicSearchDelegate: MagicSearchDelegate?
	
	@objc var currentFilter: String = ""
	var previousFilter: String?
	
	var needUpdateLastSearchContacts = false
	
	@Published var lastSearch: [SearchResult] = []
	
	private var limitSearchToLinphoneAccounts = true
    
    @Published var allContact = false
    private var domainDefaultAccount = ""
	
	private init() {
        domainDefaultAccount = coreContext.mCore.defaultAccount!.params!.domain!
        
		magicSearch = try? coreContext.mCore.createMagicSearch()
		magicSearch.limitedSearch = false
		
		magicSearchDelegate = MagicSearchDelegateStub(onSearchResultsReceived: { (magicSearch: MagicSearch) in
			self.needUpdateLastSearchContacts = true
			self.lastSearch = magicSearch.lastSearch
		})
		
		magicSearch.addDelegate(delegate: magicSearchDelegate!)
	}
	
	func searchForContacts(sourceFlags: Int) {
		if let oldFilter = previousFilter {
			if oldFilter.count > currentFilter.count || oldFilter != currentFilter {
				magicSearch.resetSearchCache()
			}
		}
		previousFilter = currentFilter
		
        magicSearch.getContactsListAsync(
            filter: currentFilter,
            domain: allContact ? "" : domainDefaultAccount,
            sourceFlags: sourceFlags,
            aggregation: MagicSearch.Aggregation.Friend)
	}
}