[WIP] certs

2026-09-09 15:13:52 +02:00
parent 5904136d15
commit 2b3d38ee20
6 changed files with 205 additions and 3 deletions
@@ -0,0 +1,132 @@
+using Elwig.Helpers;
+using Elwig.Models.Entities;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text.Json.Nodes;
+using System.Threading.Tasks;
+using System.Web;
+
+namespace Elwig.Services {
+    public static class OrganicService {
+
+        public const string TRACES_API_URL = "https://webgate.ec.europa.eu/tracesnt/directory/publication/organic-operator/for/query";
+        public const string TRACES_PDF_URL_PREFIX = "https://webgate.ec.europa.eu/tracesnt/directory/publication/organic-operator/digitally-signed/";
+
+        public enum TracesStatus {
+            ISSUED, SUSPENDED, WITHDRAWN, EXPIRED
+        }
+
+        public enum TracesActivity {
+            PREPARATION, EXPORT, IMPORT, STORING, PRODUCTION, DISTRIBUTION, DISTRIBUTION_PLACING_ON_THE_MARKET
+        }
+
+        public enum TracesCategoryOfProduct {
+            UNPROCESSED_PLANT_PRODUCTS_INCLUDING_SEEDS, LIVESTOCK_AND_UNPROCESSED_LIVESTOCK_PRODUCTS, ALGAE_AND_UNPROCESSED_AQUACULTURE_PRODUCTS,
+            PROCESSED_AGRICULTURAL_PRODUCTS_INCLUDING_AQUACULTURE_FOR_USE_AS_FOOD, FEED, WINE, OTHER_PRODUCTS_NOT_COVERED_BY_PREVIOUS_CATEGORIES
+        }
+
+        public record TracesCertificate {
+            public required string Id { get; init; }
+            public required string AuthorityCode { get; init; }
+            public required string OperatorId { get; init; }
+            public required string OperatorName { get; init; }
+            public required TracesActivity[] Activities { get; init; }
+            public required TracesCategoryOfProduct[] CategoriesOfProduct { get; init; }
+            public required DateOnly IssuedOn { get; init; }
+            public required DateOnly ExpiresOn { get; init; }
+            public required DateOnly LastStatusUpdateOn { get; init; }
+            public required TracesStatus Status { get; init; }
+
+            public string PdfUrl => TRACES_PDF_URL_PREFIX + Id + ".pdf";
+            public bool IsValid => Status == TracesStatus.ISSUED && IssuedOn.ToDateTime(new()) <= DateTime.Today && ExpiresOn.ToDateTime(new()) >= DateTime.Today;
+            public bool IsValidForWineProduction => IsValid && Activities.Contains(TracesActivity.PRODUCTION) &&
+                (CategoriesOfProduct.Contains(TracesCategoryOfProduct.UNPROCESSED_PLANT_PRODUCTS_INCLUDING_SEEDS) || CategoriesOfProduct.Contains(TracesCategoryOfProduct.WINE));
+        }
+
+        private async static Task<JsonArray> TryFetchTracesCertificates(Dictionary<string, string> query) {
+            var q = HttpUtility.ParseQueryString("");
+            q.Add("sort", "-issuedOn");
+            q.Add("countryCode", "AT");
+            foreach (var (k, v) in query) {
+                q.Add(k, v);
+            }
+
+            using var client = Utils.GetHttpClient();
+            using var res = await client.GetAsync($"{TRACES_API_URL}?{q}");
+            res.EnsureSuccessStatusCode();
+            var resJson = JsonNode.Parse(await res.Content.ReadAsStringAsync());
+            var certs = resJson?.AsArray() ?? throw new Exception();
+            if (certs.Count == 0)
+                throw new Exception();
+            return certs;
+        }
+
+        public async static Task<TracesCertificate[]> FetchTracesCertificatesOfMember(Member m, bool? tryNameAndAddress = null) {
+            bool searchedByName = false;
+
+            JsonArray? jsonCerts = null;
+            if (m.OrganicOperatorId != null) {
+                try {
+                    jsonCerts = await TryFetchTracesCertificates(new Dictionary<string, string> {
+                        { "operatorIdentifierType", "ooc_identifier" },
+                        { "operatorIdentifierSearchOperator", "STRICT" },
+                        { "operatorIdentifier", m.OrganicOperatorId },
+                    });
+                } catch {
+                    jsonCerts = null;
+                }
+            }
+            
+            if (jsonCerts == null && m.LfbisNr != null) {
+                try {
+                    jsonCerts = await TryFetchTracesCertificates(new Dictionary<string, string> {
+                        { "operatorIdentifierType", "comp_reg" },
+                        { "operatorIdentifierSearchOperator", "STRICT" },
+                        { "operatorIdentifier", m.LfbisNr.TrimStart('0') },
+                    });
+                } catch {
+                    jsonCerts = null;
+                }
+            }
+                
+            if (jsonCerts == null && (tryNameAndAddress ?? m.IsOrganic)) {
+                try {
+                    jsonCerts = await TryFetchTracesCertificates(new Dictionary<string, string> {
+                        { "operatorPostalCode", $"{(m.BillingAddress?.PostalDest ?? m.PostalDest).AtPlz?.Plz}" },
+                        { "query", m.BillingAddress is BillingAddr a ? $"{a.FullName} {a.Address}" : $"{m.FullName} {m.Address}" },
+                    });
+                    searchedByName = true;
+                } catch {
+                    jsonCerts = null;
+                }
+            }
+
+            if (jsonCerts == null)
+                return [];
+
+            TracesCertificate[] certs = [];
+            try {
+                certs = [.. jsonCerts.Select(j => new TracesCertificate {
+                    Id = j!["reference"]?.GetValue<string>() ?? throw new Exception(),
+                    AuthorityCode = j["issuingBody"]?["code"]?.GetValue<string>() ?? throw new Exception(),
+                    OperatorId = j["operatorIdentifier"]?.GetValue<string>() ?? throw new Exception(),
+                    OperatorName = j["operator"]?["name"]?.GetValue<string>() ?? throw new Exception(),
+                    Activities = [.. j["activities"]?.AsArray().Select(a => Enum.Parse<TracesActivity>(a?["id"]?.GetValue<string>().ToUpper().Replace("_IMPORT", "IMPORT") ?? throw new Exception())) ?? []],
+                    CategoriesOfProduct = [.. j["categoriesOfProduct"]?.AsArray().Select(c => Enum.Parse<TracesCategoryOfProduct>(c?["id"]?.GetValue<string>() ?? throw new Exception())) ?? []],
+                    IssuedOn = DateOnly.FromDateTime(DateTime.ParseExact(j["issuedOn"]?.GetValue<string>() ?? throw new Exception(), "yyyy-MM-ddTHH:mm:ss.fffK", CultureInfo.InvariantCulture, DateTimeStyles.None)),
+                    ExpiresOn = DateOnly.ParseExact(j["expiresOn"]?.GetValue<string>() ?? throw new Exception(), "yyyy-MM-dd"),
+                    LastStatusUpdateOn = DateOnly.FromDateTime(DateTime.ParseExact(j["lastStatusUpdateDateTime"]?.GetValue<string>() ?? throw new Exception(), "yyyy-MM-ddTHH:mm:ss.fffK", CultureInfo.InvariantCulture, DateTimeStyles.None)),
+                    Status = Enum.Parse<TracesStatus>(j["status"]?["id"]?.GetValue<string>() ?? throw new Exception()),
+                })];
+            } catch {
+                return [];
+            }
+
+            return (!searchedByName || certs.Where(c => c.Status == TracesStatus.ISSUED).Select(c => c.OperatorId).ToHashSet().Count == 1) ? certs : [];
+        }
+
+
+    }
+}