// <copyright file="IDevToolsSession.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
// </copyright>

using System;
using System.Text.Json;
using System.Text.Json.Nodes;
using System.Threading;
using System.Threading.Tasks;

namespace OpenQA.Selenium.DevTools
{
    /// <summary>
    /// Represents a WebSocket connection to a running DevTools instance that can be used to send
    /// commands and recieve events.
    ///</summary>
    public interface IDevToolsSession : IDisposable
    {
        /// <summary>
        /// Event raised when the DevToolsSession logs informational messages.
        /// </summary>
        event EventHandler<DevToolsSessionLogMessageEventArgs> LogMessage;

        /// <summary>
        /// Event raised an event notification is received from the DevTools session.
        /// </summary>
        event EventHandler<DevToolsEventReceivedEventArgs> DevToolsEventReceived;

        /// <summary>
        /// Gets the domains that are valid for the specfied version of Developer Tools connection.
        /// </summary>
        /// <typeparam name="T">
        /// A <see cref="DevToolsSessionDomains"/> type specific to the version of Develoepr Tools with which to communicate.
        /// </typeparam>
        /// <returns>The version-specific domains for this Developer Tools connection.</returns>
        T GetVersionSpecificDomains<T>() where T : DevToolsSessionDomains;

        /// <summary>
        /// Sends the specified command and returns the associated command response.
        /// </summary>
        /// <typeparam name="TCommand">A command object implementing the <see cref="ICommand"/> interface.</typeparam>
        /// <param name="command">The command to be sent.</param>
        /// <param name="cancellationToken">A CancellationToken object to allow for cancellation of the command.</param>
        /// <param name="millisecondsTimeout">The execution timeout of the command in milliseconds.</param>
        /// <param name="throwExceptionIfResponseNotReceived"><see langword="true"/> to throw an exception if a response is not received; otherwise, <see langword="false"/>.</param>
        /// <returns>The command response object implementing the <see cref="ICommandResponse{T}"/> interface.</returns>
        Task<ICommandResponse<TCommand>> SendCommand<TCommand>(TCommand command, CancellationToken cancellationToken, int? millisecondsTimeout, bool throwExceptionIfResponseNotReceived)
            where TCommand : ICommand;

        /// <summary>
        /// Sends the specified command and returns the associated command response.
        /// </summary>
        /// <typeparam name="TCommand">A command object implementing the <see cref="ICommand"/> interface.</typeparam>
        /// <typeparam name="TCommandResponse">A response object implementing the <see cref="ICommandResponse"/> interface.</typeparam>
        /// <param name="command">The command to send.</param>
        /// <param name="cancellationToken">A CancellationToken object to allow for cancellation of the command.</param>
        /// <param name="millisecondsTimeout">The execution timeout of the command in milliseconds.</param>
        /// <param name="throwExceptionIfResponseNotReceived"><see langword="true"/> to throw an exception if a response is not received; otherwise, <see langword="false"/>.</param>
        /// <returns>The command response object implementing the <see cref="ICommandResponse{T}"/> interface.</returns>
        Task<TCommandResponse> SendCommand<TCommand, TCommandResponse>(TCommand command, CancellationToken cancellationToken, int? millisecondsTimeout, bool throwExceptionIfResponseNotReceived)
            where TCommand : ICommand
            where TCommandResponse : ICommandResponse<TCommand>;

        /// <summary>
        /// Returns a JsonNode based on a command created with the specified command name and params.
        /// </summary>
        /// <param name="commandName">The name of the command to send.</param>
        /// <param name="params">The parameters of the command as a JsonNode object</param>
        /// <param name="cancellationToken">A CancellationToken object to allow for cancellation of the command.</param>
        /// <param name="millisecondsTimeout">The execution timeout of the command in milliseconds.</param>
        /// <param name="throwExceptionIfResponseNotReceived"><see langword="true"/> to throw an exception if a response is not received; otherwise, <see langword="false"/>.</param>
        /// <returns>The command response object implementing the <see cref="ICommandResponse{T}"/> interface.</returns>
        Task<JsonElement?> SendCommand(string commandName, JsonNode @params, CancellationToken cancellationToken, int? millisecondsTimeout, bool throwExceptionIfResponseNotReceived);
    }
}
