using Baidu.Aip.Ocr;
using Furion;
using Furion.DistributedIDGenerator;
using Furion.FriendlyException;
using Furion.HttpRemote;
using Microsoft.AspNetCore.DataProtection;
using Microsoft.Extensions.Options;
using NetTopologySuite.Operation.Buffer;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.Core
{
    /// <summary>
    /// 百度文字识别工具
    /// </summary>
    public static class BaiduOcrUtils
    {
        /// <summary>
        /// 营业执照OCR
        /// </summary>
        /// <param name="url"></param>
        /// <param name="scene"></param>
        /// <param name="isOssUrl"></param>
        public static async Task<BaiduOcrBusinessLicenseResult> OcrBusinessLicense(this string url, string scene = null, bool isOssUrl = true)
        {
            var options = App.GetOptions<BaiduOptions>();
            var ocr = new Ocr(options.Ocr.Key, options.Ocr.Secret);
            ocr.Timeout = 60000;
            JObject value;
            if (isOssUrl)
            {
                var downloadUrl = AliyunOSSUtils.GetUrl(url);
                var buffer = await App.GetRequiredService<IHttpRemoteService>().GetAsByteArrayAsync(downloadUrl);
                value = ocr.BusinessLicense(buffer);
            }
            else
            {
                var upload = AliyunOSSUtils.Upload(scene, url, null);
                url = upload.Url;
                value = ocr.BusinessLicense(upload.Buffer);
            }
            var result = value.ToObject<BaiduOcrBusinessLicenseResult>();
            result.Url = url;
            if (result.ErrorCode.IsNotNull())
            {
                return result;
            }
            result.Model = new BaiduOcrBusinessLicenseResultModel
            {
                EnterpriseName = result.WordsResult.GetWords("单位名称"),
                SocietyCreditCode = result.WordsResult.GetWords("社会信用代码"),
                LegalPerson = result.WordsResult.GetWords("法人"),
                EnterpriseType = result.WordsResult.GetWords("类型"),
                RegisteredCapital = result.WordsResult.GetWords("注册资本"),
                EstablishmentDate = result.WordsResult.GetWords("成立日期"),
                Address = result.WordsResult.GetWords("地址"),
                MainBusiness = result.WordsResult.GetWords("经营范围"),
            };
            return result;
        }

        /// <summary>
        /// 身份证正面OCR
        /// </summary>
        /// <param name="url"></param>
        /// <param name="scene"></param>
        /// <param name="isOssUrl"></param>
        public static async Task<BaiduOcrIdentityFrontResult> OcrIdentityFront(this string url, string scene = null, bool isOssUrl = true)
        {
            var options = App.GetOptions<BaiduOptions>();
            var ocr = new Ocr(options.Ocr.Key, options.Ocr.Secret);
            ocr.Timeout = 60000;
            JObject value;
            if (isOssUrl)
            {
                var downloadUrl = AliyunOSSUtils.GetUrl(url);
                var buffer = await App.GetRequiredService<IHttpRemoteService>().GetAsByteArrayAsync(downloadUrl);
                value = ocr.Idcard(buffer, "front");
            }
            else
            {
                var upload = AliyunOSSUtils.Upload(scene, url, null);
                url = upload.Url;
                value = ocr.Idcard(upload.Buffer, "front");
            }
            var result = value.ToObject<BaiduOcrIdentityFrontResult>();
            result.Url = url;
            if (result.ErrorCode.IsNotNull())
            {
                return result;
            }

            result.Model = new BaiduOcrIdentityFrontResultModel
            {
                Address = result.WordsResult.GetWords("住址"),
                Identity = result.WordsResult.GetWords("公民身份号码"),
                BirthdayText = result.WordsResult.GetWords("出生"),
                Name = result.WordsResult.GetWords("姓名"),
                GenderText = result.WordsResult.GetWords("性别"),
                Nation = result.WordsResult.GetWords("民族"),
            };
            return result;
        }

        /// <summary>
        /// 身份证背面OCR
        /// </summary>
        /// <param name="url"></param>
        /// <param name="scene"></param>
        /// <param name="isOssUrl"></param>
        public static async Task<BaiduOcrIdentityBackResult> OcrIdentityBack(this string url, string scene = null, bool isOssUrl = true)
        {
            var options = App.GetOptions<BaiduOptions>();
            var ocr = new Ocr(options.Ocr.Key, options.Ocr.Secret);
            ocr.Timeout = 60000;
            JObject value;
            if (isOssUrl)
            {
                var downloadUrl = AliyunOSSUtils.GetUrl(url);
                var buffer = await App.GetRequiredService<IHttpRemoteService>().GetAsByteArrayAsync(downloadUrl);
                value = ocr.Idcard(buffer, "back");
            }
            else
            {
                var upload = AliyunOSSUtils.Upload(scene, url, null);
                url = upload.Url;
                value = ocr.Idcard(upload.Buffer, "back");
            }
            var result = value.ToObject<BaiduOcrIdentityBackResult>();
            result.Url = url;
            if (result.ErrorCode.IsNotNull())
            {
                return result;
            }

            result.Model = new BaiduOcrIdentityBackResultModel
            {
                ExpiryDateText = result.WordsResult.GetWords("失效日期"),
                IssueAuthority = result.WordsResult.GetWords("签发机关"),
                IssueDateText = result.WordsResult.GetWords("签发日期"),
            };
            return result;
        }

        public static string GetWords(this Dictionary<string, BaiduOcrResultWord> result, string name)
        {
            return result.ContainsKey(name) ? result[name].Words : null;
        }
    }
}