Resolve D1 database_id at build time via API lookup

The deploy script now runs scripts/resolve-d1-id.js before migrations.
It queries wrangler d1 list to find the database_id by name and injects
it into wrangler.toml. Skips if database_id is already present.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: DennisAlund

package.json

@@ -5,7 +5,7 @@
   "license": "Apache-2.0",
   "scripts": {
     "dev": "wrangler dev",
-    "deploy": "npm run db:migrate:remote && wrangler deploy",
+    "deploy": "node scripts/resolve-d1-id.js && npm run db:migrate:remote && wrangler deploy",
     "wrangler-login": "wrangler login",
     "db:create": "wrangler d1 create shrtnr-db",
     "db:migrate": "wrangler d1 migrations apply shrtnr-db --local",

scripts/resolve-d1-id.js

@@ -0,0 +1,47 @@
+#!/usr/bin/env node
+
+// Resolves the D1 database_id at build time by querying the Cloudflare API
+// via wrangler. Keeps wrangler.toml free of hardcoded database IDs so the
+// source repo works for any Cloudflare account.
+
+const { execSync } = require("child_process");
+const fs = require("fs");
+
+const configPath = "wrangler.toml";
+const toml = fs.readFileSync(configPath, "utf-8");
+
+if (/^\s*database_id\s*=/m.test(toml)) {
+  process.exit(0);
+}
+
+const nameMatch = toml.match(/database_name\s*=\s*"([^"]+)"/);
+if (!nameMatch) {
+  console.error("No database_name found in wrangler.toml");
+  process.exit(1);
+}
+const dbName = nameMatch[1];
+
+let databases;
+try {
+  const raw = execSync("npx wrangler d1 list --json 2>/dev/null", {
+    encoding: "utf-8",
+  });
+  const parsed = JSON.parse(raw);
+  databases = Array.isArray(parsed) ? parsed : [];
+} catch {
+  console.error("Could not list D1 databases. Is wrangler authenticated?");
+  process.exit(1);
+}
+
+const db = databases.find((d) => d.name === dbName);
+if (!db) {
+  console.error(`D1 database "${dbName}" not found in this account.`);
+  process.exit(1);
+}
+
+const updated = toml.replace(
+  /(database_name\s*=\s*"[^"]+")/,
+  `$1\ndatabase_id = "${db.uuid}"`,
+);
+fs.writeFileSync(configPath, updated);
+console.log(`Resolved ${dbName} → ${db.uuid}`);