#!/usr/bin/env bun
/**
 * Bulk migration: runtimeEnv → env, global logger → createLogger(env)
 */
import { readFileSync, writeFileSync } from "node:fs";
import { globSync } from "bun:fs";

const SRC = "/Volumes/sker/autumn/server/src";

const files = globSync(`${SRC}/**/*.ts`).filter(
  (f) => !f.includes("node_modules") && !f.includes(".test."),
);

let changed = 0;

for (const f of files) {
  let content = readFileSync(f, "utf-8");
  const original = content;
  let modified = false;

  // ── Remove runtimeEnv imports ──
  if (content.match(/import\s+\{[^}]*runtimeEnv[^}]*\}\s+from\s+["'][^"']*envUtils[^"']*["'];?/)) {
    content = content.replace(
      /^import\s+\{[^}]*runtimeEnv[^}]*\}\s+from\s+["'][^"']*envUtils[^"']*["'];?\s*\n/gm,
      "",
    );
    modified = true;
  }

  // ── Replace runtimeEnv.XXX → env.XXX ──
  if (content.includes("runtimeEnv.")) {
    content = content.replace(/runtimeEnv\./g, "env.");
    modified = true;
  }

  // ── Replace import { logger } with import { createLogger } ──
  if (content.match(/import\s+\{[^}]*\blogger\b[^}]*\}\s+from\s+["'][^"']*logtailUtils[^"']*["'];?/)) {
    // Add createLogger to the existing import, or create new import
    if (content.includes("import { createLogger }")) {
      // Already has createLogger, just remove logger
      content = content.replace(
        /import\s+\{([^}]*)logger([^}]*)\}\s+from\s+["'][^"']*logtailUtils[^"']*["'];?/g,
        (_, p1, p2) => {
          const parts = [p1.trim(), p2.trim()].filter(Boolean).join(", ");
          return parts
            ? `import { ${parts} } from "@/external/logtail/logtailUtils.js";`
            : 'import { createLogger } from "@/external/logtail/logtailUtils.js";';
        },
      );
    } else {
      content = content.replace(
        /import\s+\{([^}]*)logger\b([^}]*)\}\s+from\s+["'][^"']*logtailUtils[^"']*["'];?/g,
        (_, p1, p2) => {
          const hasOther = (p1 + p2).replace(/\s+/g, "").length > 0;
          if (hasOther) {
            return `import { createLogger, ${[p1, p2].map(s => s.trim()).filter(Boolean).join(", ")} } from "@/external/logtail/logtailUtils.js";`;
          }
          return 'import { createLogger } from "@/external/logtail/logtailUtils.js";';
        },
      );
    }
    modified = true;
  }

  if (modified) {
    writeFileSync(f, content);
    changed++;
    console.log(`✓ ${f.replace(SRC, "")}`);
  }
}

console.log(`\nChanged ${changed} files.`);