using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Threading.Tasks;
using System.Threading;
using System;

namespace MegghysAPI.Modules
{
    public static class CapResolver
    {
        private const string ApiKey = "CAP-5537BB057BE85FC11F04BB5BB6E80E73AD44279056AC22D0E70664B24964C3D9";
        private const string CreateTaskUrl = "https://api.capsolver.com/createTask";
        private const string GetTaskResultUrl = "https://api.capsolver.com/getTaskResult";
        private static readonly HttpClient HttpClient = new HttpClient();

        private class CreateTaskRequest
        {
            [JsonPropertyName("clientKey")]
            public string ClientKey { get; set; }

            [JsonPropertyName("task")]
            public object Task { get; set; }
        }

        private class GeetestTask
        {
            [JsonPropertyName("type")]
            public string Type { get; set; } = "GeeTestTaskProxyLess";

            [JsonPropertyName("websiteURL")]
            public string WebsiteURL { get; set; }

            [JsonPropertyName("gt")]
            [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
            public string Gt { get; set; }

            [JsonPropertyName("challenge")]
            [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
            public string Challenge { get; set; }

            [JsonPropertyName("captchaId")]
            [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
            public string CaptchaId { get; set; }

            [JsonPropertyName("geetestApiServerSubdomain")]
            [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
            public string GeetestApiServerSubdomain { get; set; }
        }

        private class CreateTaskResponse
        {
            [JsonPropertyName("errorId")]
            public int ErrorId { get; set; }

            [JsonPropertyName("status")]
            public string Status { get; set; }

            [JsonPropertyName("taskId")]
            public string TaskId { get; set; }
        }

        private class GetTaskResultRequest
        {
            [JsonPropertyName("clientKey")]
            public string ClientKey { get; set; }

            [JsonPropertyName("taskId")]
            public string TaskId { get; set; }
        }

        private class GetTaskResultResponse
        {
            [JsonPropertyName("errorId")]
            public int ErrorId { get; set; }

            [JsonPropertyName("status")]
            public string Status { get; set; }

            [JsonPropertyName("solution")]
            public GeetestSolution Solution { get; set; }
        }
        public class GeetestSolution
        {
            [JsonPropertyName("challenge")]
            public string Challenge { get; set; }
            [JsonPropertyName("validate")]
            public string Validate { get; set; }
        }

        public static async Task<GeetestSolution?> SolveGeetestAsync(string websiteUrl, string gt = null, string challenge = null, string captchaId = null, string apiServerSubdomain = null)
        {
            var geetestTask = new GeetestTask
            {
                WebsiteURL = websiteUrl,
                Gt = gt,
                Challenge = challenge,
                CaptchaId = captchaId,
                GeetestApiServerSubdomain = apiServerSubdomain
            };

            var createTaskRequest = new CreateTaskRequest
            {
                ClientKey = ApiKey,
                Task = geetestTask
            };

            var response = await HttpClient.PostAsJsonAsync(CreateTaskUrl, createTaskRequest);
            if (!response.IsSuccessStatusCode)
            {
                // 可以添加日志记录
                return null;
            }

            var createTaskResponse = await response.Content.ReadFromJsonAsync<CreateTaskResponse>();
            if (createTaskResponse == null || createTaskResponse.ErrorId != 0 || string.IsNullOrEmpty(createTaskResponse.TaskId))
            {
                // 可以添加日志记录
                return null;
            }

            var getTaskResultRequest = new GetTaskResultRequest
            {
                ClientKey = ApiKey,
                TaskId = createTaskResponse.TaskId
            };

            await Task.Delay(3000);

            while (true)
            {
                await Task.Delay(1000);

                var resultResponse = await HttpClient.PostAsJsonAsync(GetTaskResultUrl, getTaskResultRequest);
                if (!resultResponse.IsSuccessStatusCode)
                {
                    // 可以添加日志记录
                    continue;
                }

                var getTaskResultResponse = await resultResponse.Content.ReadFromJsonAsync<GetTaskResultResponse>();
                if (getTaskResultResponse == null)
                {
                    continue;
                }

                if (getTaskResultResponse.Status == "ready")
                {
                    return getTaskResultResponse.Solution;
                }

                if (getTaskResultResponse.Status == "failed" || getTaskResultResponse.ErrorId != 0)
                {
                    // 可以添加日志记录
                    return null;
                }
            }
        }
    }
}