import { existsSync } from "node:fs";
import path from "node:path";
import { fileURLToPath } from "node:url";

const rootDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const buildEnv = process.env.ELECTROBUN_BUILD_ENV || "dev";

const requiredFiles = [
  "src/bun/index.js",
  "electrobun.config.ts",
  "package.json",
];

for (const relativePath of requiredFiles) {
  const filePath = path.join(rootDir, relativePath);
  if (!existsSync(filePath)) {
    console.error(`pre-build: required file not found: ${relativePath}`);
    process.exit(1);
  }
}

if (buildEnv === "stable" && process.env.ELECTROBUN_OS === "macos") {
  const codesignVars = [
    "ELECTROBUN_DEVELOPER_ID",
    "ELECTROBUN_APPLEID",
    "ELECTROBUN_APPLEIDPASS",
    "ELECTROBUN_TEAMID",
  ];
  const missing = codesignVars.filter((name) => !process.env[name]);

  if (missing.length > 0) {
    console.warn(
      `pre-build: stable macOS build without code signing credentials (${missing.join(", ")}); Electrobun will skip signing.`,
    );
  }
}

console.log(`pre-build: validation passed (${buildEnv})`);