Initial push

lib/minecraft/sync.ts

@@ -0,0 +1,104 @@
+/**
+ * Syncs Minecraft server data (players, plugins) into the local database
+ * by parsing server logs and using RCON commands.
+ */
+
+import { db } from "@/lib/db";
+import { mcPlayers, plugins } from "@/lib/db/schema";
+import { rconClient } from "@/lib/minecraft/rcon";
+import { eq } from "drizzle-orm";
+import { nanoid } from "nanoid";
+
+/** Parse the player list from the RCON "list" command response. */
+export async function syncOnlinePlayers(): Promise<void> {
+  try {
+    const response = await rconClient.sendCommand("list");
+    // Response format: "There are X of a max of Y players online: player1, player2"
+    const match = response.match(/players online: (.*)$/);
+    if (!match) return;
+
+    const onlineNames = match[1]
+      .split(",")
+      .map((s) => s.trim())
+      .filter(Boolean);
+
+    // Mark all players as offline first
+    await db
+      .update(mcPlayers)
+      .set({ isOnline: false })
+      .where(eq(mcPlayers.isOnline, true));
+
+    // Mark online players
+    for (const name of onlineNames) {
+      const existing = await db
+        .select()
+        .from(mcPlayers)
+        .where(eq(mcPlayers.username, name))
+        .get();
+
+      if (existing) {
+        await db
+          .update(mcPlayers)
+          .set({ isOnline: true, lastSeen: Date.now() })
+          .where(eq(mcPlayers.username, name));
+      }
+    }
+  } catch {
+    // RCON might not be connected — ignore
+  }
+}
+
+/** Parse a log line and update player records accordingly. */
+export function parseLogLine(
+  line: string,
+  onPlayerJoin?: (name: string) => void,
+  onPlayerLeave?: (name: string) => void,
+): void {
+  // "[HH:MM:SS] [Server thread/INFO]: PlayerName joined the game"
+  const joinMatch = line.match(/\[.*\]: (\w+) joined the game/);
+  if (joinMatch) {
+    const name = joinMatch[1];
+    upsertPlayer(name, { isOnline: true, lastSeen: Date.now() });
+    onPlayerJoin?.(name);
+    return;
+  }
+
+  // "[HH:MM:SS] [Server thread/INFO]: PlayerName left the game"
+  const leaveMatch = line.match(/\[.*\]: (\w+) left the game/);
+  if (leaveMatch) {
+    const name = leaveMatch[1];
+    upsertPlayer(name, { isOnline: false, lastSeen: Date.now() });
+    onPlayerLeave?.(name);
+    return;
+  }
+}
+
+async function upsertPlayer(
+  username: string,
+  data: Partial<typeof mcPlayers.$inferInsert>,
+): Promise<void> {
+  const existing = await db
+    .select()
+    .from(mcPlayers)
+    .where(eq(mcPlayers.username, username))
+    .get();
+
+  if (existing) {
+    await db
+      .update(mcPlayers)
+      .set(data as Record<string, unknown>)
+      .where(eq(mcPlayers.username, username));
+  } else {
+    await db.insert(mcPlayers).values({
+      id: nanoid(),
+      uuid: (data as { uuid?: string }).uuid ?? nanoid(), // placeholder until real UUID is known
+      username,
+      firstSeen: Date.now(),
+      lastSeen: Date.now(),
+      isOnline: false,
+      playTime: 0,
+      isBanned: false,
+      ...data,
+    });
+  }
+}