ServerConfig model and controller

src/main/java/dev/salmonllama/fsbot/database/controllers/ServerConfigController.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2020. Aleksei Gryczewski
+ * All rights reserved.
+ */
+
+package dev.salmonllama.fsbot.database.controllers;
+
+import dev.salmonllama.fsbot.database.FSDB;
+import dev.salmonllama.fsbot.database.models.ServerConfig;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionException;
+
+public class ServerConfigController {
+    // insert
+    // retrieve
+    // update
+    // No need for delete -> guilds should persist after leaving.
+
+    public static CompletableFuture<Void> insert(ServerConfig config) {
+        return CompletableFuture.runAsync(() -> {
+            try {
+                insertExec(config);
+            } catch (SQLException e) {
+                throw new CompletionException(e);
+            }
+        });
+    }
+
+    public static CompletableFuture<Optional<ServerConfig>> getServerConfig(String serverId) {
+        return CompletableFuture.supplyAsync(() -> {
+            try {
+                return getServerConfigExec(serverId);
+            } catch (SQLException e) {
+                throw new CompletionException(e);
+            }
+        });
+    }
+
+    private static void insertExec(ServerConfig config) throws SQLException {
+        FSDB.get().insert("INSERT INTO server_config('id', 'name', 'prefix') VALUES (?, ?, ?)",
+                config.getId(),
+                config.getName(),
+                config.getPrefix()
+        );
+    }
+
+    private static Optional<ServerConfig> getServerConfigExec(String serverId) throws SQLException {
+        ResultSet rs = FSDB.get().select("SELECT * FROM server_config WHERE id = ?");
+
+        if (rs.next()) {
+            ServerConfig config = mapObject(rs);
+            FSDB.get().close(rs);
+            return Optional.of(config);
+        }
+
+        FSDB.get().close(rs);
+        return Optional.empty();
+    }
+
+    private static ServerConfig mapObject(ResultSet rs) throws SQLException {
+        return new ServerConfig.ServerConfigBuilder()
+                .setId(rs.getString("id"))
+                .setName(rs.getString("name"))
+                .setPrefix(rs.getString("prefix"))
+                .build();
+    }
+}

src/main/java/dev/salmonllama/fsbot/database/models/ServerConfig.java

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+package dev.salmonllama.fsbot.database.models;
+
+import dev.salmonllama.fsbot.database.DatabaseModel;
+
+public class ServerConfig extends DatabaseModel {
+    private String id;
+    private String name;
+    private String prefix;
+
+    public ServerConfig(ServerConfigBuilder builder) {
+        this.id = builder.id;
+        this.name = builder.name;
+        this.prefix = builder.prefix;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getPrefix() {
+        return prefix;
+    }
+
+    public static String schema() {
+        return "CREATE TABLE IF NOT EXISTS server_config (" +
+                "id TEXT PRIMARY KEY ," +
+                "name TEXT," +
+                "prefix TEXT)";
+    }
+
+    @Override
+    public String toString() {
+        return String.format("Server Config: [id: %s, name: %s, prefix: %s",
+                id, name, prefix
+        );
+    }
+
+    public static class ServerConfigBuilder {
+        private String id;
+        private String name;
+        private String prefix;
+
+        public ServerConfigBuilder() {
+
+        }
+
+        public ServerConfigBuilder setId(String id) {
+            this.id = id;
+            return this;
+        }
+
+        public ServerConfigBuilder setName(String name) {
+            this.name = name;
+            return this;
+        }
+
+        public ServerConfigBuilder setPrefix(String prefix) {
+            this.prefix = prefix;
+            return this;
+        }
+
+        public ServerConfig build() {
+            return new ServerConfig(this);
+        }
+    }
+}