initial commit

db.ts

@@ -0,0 +1,76 @@
+import { Database } from "bun:sqlite";
+import { homedir } from "node:os";
+import { join } from "node:path";
+import { readConfig } from "./config.js";
+
+// Load config
+const config = readConfig();
+
+// Set database path from config or use default
+const dbPath = config.dbPath || join(homedir(), ".mcp-nostr.db");
+export const db = new Database(dbPath);
+
+// Create migration table if it doesn't exist
+db.run(`
+    CREATE TABLE IF NOT EXISTS migrations (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        name TEXT NOT NULL UNIQUE,
+        applied_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    )
+`);
+
+// Define migration interface
+interface Migration {
+    name: string;
+    module: () => Promise<{ up: (db: Database) => Promise<void> }>;
+}
+
+// Import all migrations
+// Add new migrations to this array when created
+export const migrations: Migration[] = [
+    // Example:
+    // { name: '001_initial_schema', module: () => import('./migrations/001_initial_schema.js') },
+    // Add all migrations here
+];
+
+/**
+ * Apply any pending migrations
+ */
+export async function applyMigrations() {
+    // Get already applied migrations
+    const appliedMigrations = db.query("SELECT name FROM migrations").all() as {
+        name: string;
+    }[];
+    const appliedSet = new Set(appliedMigrations.map((m) => m.name));
+
+    for (const migration of migrations) {
+        // Skip if already applied
+        if (appliedSet.has(migration.name)) {
+            continue;
+        }
+
+        console.log(`Applying migration: ${migration.name}`);
+
+        try {
+            // Import and run the migration
+            const module = await migration.module();
+            await module.up(db);
+
+            // Record that the migration was applied
+            db.run("INSERT INTO migrations (name) VALUES (?)", [
+                migration.name,
+            ]);
+
+            console.log(`Successfully applied migration: ${migration.name}`);
+        } catch (error) {
+            console.error(
+                `Failed to apply migration ${migration.name}:`,
+                error
+            );
+            throw error;
+        }
+    }
+}
+
+// Call this during app initialization
+await applyMigrations();