//
// Copyright 2026 Element Creations Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//

@testable import ElementX
import Foundation
import Testing

final class HealthChatInviteMemberScreenViewModelTests {
    private let apiService = HealthChatAPIServiceMock()
    private let viewModel: HealthChatInviteMemberScreenViewModel
    
    init() {
        viewModel = HealthChatInviteMemberScreenViewModel(apiService: apiService,
                                                          userIndicatorController: UserIndicatorControllerMock())
    }
    
    @Test
    func sendingRequiresValidEmailAndNote() {
        #expect(!viewModel.context.viewState.canSend)
        
        viewModel.context.email = "new@example.ch"
        viewModel.context.personalNote = "Zu kurz"
        #expect(!viewModel.context.viewState.canSend)
        
        viewModel.context.personalNote = "Bitte tritt unserem Netzwerk bei!"
        #expect(viewModel.context.viewState.canSend)
        
        viewModel.context.email = "not-an-email"
        #expect(!viewModel.context.viewState.canSend)
    }
    
    @Test
    func sendSuccessDismisses() async throws {
        apiService.inviteMemberEmailPersonalNoteReturnValue = .success(())
        
        viewModel.context.email = "new@example.ch"
        viewModel.context.personalNote = "Bitte tritt unserem Netzwerk bei!"
        
        let deferred = deferFulfillment(viewModel.actionsPublisher) { action in
            guard case .dismiss = action else { return false }
            return true
        }
        viewModel.context.send(viewAction: .send)
        try await deferred.fulfill()
        
        let arguments = try #require(apiService.inviteMemberEmailPersonalNoteReceivedArguments)
        #expect(arguments.email == "new@example.ch")
        #expect(arguments.personalNote == "Bitte tritt unserem Netzwerk bei!")
    }
    
    @Test
    func sendFailureShowsAlert() async throws {
        apiService.inviteMemberEmailPersonalNoteReturnValue = .failure(.networkFailure)
        
        viewModel.context.email = "new@example.ch"
        viewModel.context.personalNote = "Bitte tritt unserem Netzwerk bei!"
        
        let deferred = deferFulfillment(viewModel.context.observe(\.viewState.bindings.alertInfo)) { $0 != nil }
        viewModel.context.send(viewAction: .send)
        try await deferred.fulfill()
    }
    
    @Test
    func cancelDismisses() async throws {
        let deferred = deferFulfillment(viewModel.actionsPublisher) { action in
            guard case .dismiss = action else { return false }
            return true
        }
        viewModel.context.send(viewAction: .cancel)
        try await deferred.fulfill()
    }
}