add autocompletion for system names

2021-07-09 14:40:27 +02:00
parent fca1e607ec
commit 14c14f7626
8 changed files with 175 additions and 71 deletions
--- a/EDDB/API.cs
+++ b/EDDB/API.cs
@@ -0,0 +1,59 @@
+using System;
+using System.IO;
+using System.Net;
+
+namespace NonaBGS.EDDB {
+    public class API {
+        private static readonly string EDDB_SYSTEMS_ARCHIVE = "https://eddb.io/archive/v6/systems_populated.json";
+        private string cache_folder = null;
+        private readonly WebClient client = new WebClient();
+
+        private string systems_file = null;
+
+        public string SystemsFile => systems_file;
+
+        public string Cache {
+            get => cache_folder;
+            set => cache_folder = value;
+        }
+
+        public API(string cache_folder) {
+            Initialise(cache_folder);
+        }
+
+        private void Initialise(string cache_folder) {
+            this.cache_folder = cache_folder;
+            systems_file = Path.Combine(this.cache_folder, "systems_populated.json");
+            client.DownloadDataCompleted += Client_DownloadDataCompleted;
+        }
+
+        private void DownloadFile(string url, string file) {
+            client.DownloadFileAsync(new Uri(url), file);
+        }
+
+        public void Download(bool force) {
+            if (!HaveSystemsFile || force) {
+                DownloadFile(EDDB_SYSTEMS_ARCHIVE, systems_file);
+            }
+        }
+
+        public void Download() {
+            Download(false);
+        }
+
+        public bool HaveSystemsFile {
+            get { return systems_file != null && File.Exists(systems_file); }
+        }
+
+        public PopulatedSystems MakePopulatedSystems() {
+            if (!HaveSystemsFile) {
+                throw new InvalidOperationException("no local systems file downloaded");
+            }
+
+            return PopulatedSystems.FromFile(SystemsFile);
+        }
+
+        private void Client_DownloadDataCompleted(object sender, DownloadDataCompletedEventArgs e) {
+        }
+    }
+}
--- a/EDDB/PopulatedSystems.cs
+++ b/EDDB/PopulatedSystems.cs
@@ -0,0 +1,59 @@
+using System.IO;
+using System.Linq;
+using System;
+using System.Globalization;
+using Newtonsoft.Json.Linq;
+
+namespace NonaBGS.EDDB {
+    public class PopulatedSystems {
+        private string json_file = null;
+        private JArray root = null;
+        private string[] system_names = null;
+
+        public static PopulatedSystems FromFile(string file) {
+            PopulatedSystems pop = new PopulatedSystems();
+            string content = File.ReadAllText(file);
+
+            pop.json_file = file;
+            pop.root = JArray.Parse(content);
+
+            return pop;
+        }
+
+        private void MakeSystemNames() {
+            if (root == null) {
+                throw new InvalidDataException("no JSON loaded");
+            }
+
+            if (system_names != null && system_names.Length > 0) {
+                return;
+            }
+
+            var names = root.Children<JObject>().Select(x => x.Value<string>("name"));
+            system_names = names.ToArray();
+        }
+
+        public string[] SystemNames {
+            get {
+                MakeSystemNames();
+                return system_names;
+            }
+        }
+
+        public string[] SystemNamesByFilter(string filter) {
+            MakeSystemNames();
+            var culture = CultureInfo.InvariantCulture;
+            return system_names.Where(x => culture.CompareInfo.IndexOf(x, filter, CompareOptions.IgnoreCase) > -1)
+                .ToArray()
+                ;
+        }
+
+        public string JSONFile {
+            get => json_file;
+        }
+
+        public JArray Root {
+            get => root;
+        }
+    }
+}