import { readFileSync } from "node:fs";
import { resolve } from "node:path";

/**
 * Inline .env/.env.local loader — must be the FIRST import in any
 * migration script that reads process.env at module-init time.
 * tsx's ESM hoisting means all top-level imports run before the
 * body, so we load env inside the imported module's TOP-LEVEL
 * SCOPE (here) instead of in the consumer's body.
 */
function loadEnv(): void {
  for (const name of [".env", ".env.local"]) {
    try {
      const raw = readFileSync(resolve(process.cwd(), name), "utf8");
      for (const line of raw.split("\n")) {
        const trimmed = line.trim();
        if (!trimmed || trimmed.startsWith("#")) continue;
        const m = trimmed.match(/^([A-Z0-9_]+)\s*=\s*(.+)$/i);
        if (m && !process.env[m[1]]) {
          process.env[m[1]] = m[2].replace(/^["']|["']$/g, "").trim();
        }
      }
    } catch {
      // missing file — rely on shell env
    }
  }
}

loadEnv();

export { loadEnv };