init

src/Account.cs

@@ -0,0 +1,86 @@
+using Npgsql;
+
+public class Account {
+    NpgsqlConnection _connection = new();
+    public KUID KUID { get; private set; } = new();
+
+
+    public static Account NewAccount(NpgsqlConnection connection, string name) {
+        KUID kuid = new("special placeholder");
+        
+        NpgsqlCommand command = new("""
+            INSERT INTO accounts VALUES (
+                ($1),
+                ($2)
+            )
+        """, connection) {
+            Parameters = {
+                new NpgsqlParameter<string>() { Value = kuid.Text },
+                new NpgsqlParameter<string>() { Value = name }
+            }
+        };
+
+        command.ExecuteNonQuery();
+        
+        return AccountFromKUID(connection, kuid);
+    }
+
+    public static Account AccountFromKUID(NpgsqlConnection connection, KUID kuid) {
+        return new() {
+            _connection = connection,
+            KUID = kuid
+        };
+    }
+
+
+    public void AddPoki(string[] names, int[]? parentIDs = null, string[]? tags = null) {
+        NpgsqlCommand command = new("""
+            INSERT INTO poki VALUES (
+                ($1),
+                DEFAULT,
+                ($2),
+                ($3),
+                DEFAULT, DEFAULT, DEFAULT,
+                ($4)
+            )
+        """, _connection) {
+            Parameters = {
+                new() { Value = KUID.Text },
+                new() { Value = names },
+                new() { Value = (parentIDs == null ? DBNull.Value : parentIDs) },
+                new() { Value = (tags == null ? DBNull.Value : tags) },
+            }
+        };
+        
+        command.ExecuteNonQuery();
+        
+        if (parentIDs == null) {
+            return;
+        }
+
+        command = new("""
+            UPDATE  poki
+            SET     child_poki = child_poki || currval('poki_id_seq')
+            WHERE   id = ANY($1)
+        """, _connection) {
+            Parameters = {
+                new() { Value = parentIDs }
+            }
+        };
+        
+        command.ExecuteNonQuery();
+    }
+
+    public void GetPokiByName(string name) {
+        NpgsqlCommand command = new("""
+            SELECT  id
+            FROM    poki
+            WHERE ($1) IN names
+            LIMIT 1
+        """, _connection) {
+            Parameters = {
+                new() { Value = name }
+            }
+        };
+    }
+}