element-x-ios/ElementX/Sources/Services/Search/SearchServiceProxyProtocol.swift

// Copyright 2025 Element Creations Ltd.
// Copyright 2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.

import Combine
import Foundation
import MatrixRustSDK

enum SearchServiceProxyError: Error {
    case sdkError(Error)
}

// sourcery: AutoMockable
protocol SearchServiceProxyProtocol {
    var resultsPublisher: CurrentValuePublisher<[SearchServiceResult], Never> { get }
    
    var paginationStatePublisher: CurrentValuePublisher<SearchServicePaginationState, Never> { get }
    
    func setQuery(_ query: String) async -> Result<Void, SearchServiceProxyError>
    
    /// Loads the next page of results. No-ops if a page is already loading or the end has been reached.
    func paginate() async
}

struct SearchServiceResult {
    let roomID: String
    let eventID: String
    let sender: TimelineItemSender
    let content: TimelineEventContent
    let timestamp: Date
}

enum SearchServicePaginationState: Equatable {
    case idle(endReached: Bool)
    case loading
}

extension SearchServicePaginationState {
    init(sdkState: MatrixRustSDK.SearchServicePaginationState) {
        switch sdkState {
        case .loading:
            self = .loading
        case .idle(let endReached):
            self = .idle(endReached: endReached)
        }
    }
}