const { execFileSync } = require("node:child_process");

// Build metadata, injected into `extra.build` and read at runtime via
// expo-constants (see utils/version.ts). Sources in priority order:
// EAS cloud build → GitHub Actions → explicit EXPO_PUBLIC_* → local git → null.
const git = (args) => {
  try {
    return execFileSync("git", args, { stdio: ["ignore", "pipe", "ignore"] })
      .toString()
      .trim();
  } catch {
    return null;
  }
};

const buildMeta = {
  commit:
    (
      process.env.EAS_BUILD_GIT_COMMIT_HASH ||
      process.env.GITHUB_SHA ||
      process.env.EXPO_PUBLIC_GIT_COMMIT ||
      git(["rev-parse", "HEAD"]) ||
      ""
    ).slice(0, 7) || null,
  branch:
    process.env.EAS_BUILD_GIT_BRANCH ||
    process.env.GITHUB_HEAD_REF ||
    process.env.GITHUB_REF_NAME ||
    process.env.EXPO_PUBLIC_GIT_BRANCH ||
    git(["rev-parse", "--abbrev-ref", "HEAD"]) ||
    null,
  profile:
    process.env.EAS_BUILD_PROFILE ||
    process.env.EXPO_PUBLIC_BUILD_PROFILE ||
    null,
  builtAt: new Date().toISOString(),
};

module.exports = ({ config }) => {
  if (process.env.EXPO_TV !== "1") {
    config.plugins.push("expo-background-task");

    config.plugins.push([
      "react-native-google-cast",
      { useDefaultExpandedMediaControls: true },
    ]);

    config.plugins.push([
      "expo-camera",
      {
        cameraPermission:
          "Allow Streamyfin to access the camera to scan QR codes for TV login.",
      },
    ]);
  }

  // Only override googleServicesFile if env var is set
  const androidConfig = {};
  if (process.env.GOOGLE_SERVICES_JSON) {
    androidConfig.googleServicesFile = process.env.GOOGLE_SERVICES_JSON;
  }

  config.extra = { ...config.extra, build: buildMeta };

  return {
    ...(Object.keys(androidConfig).length > 0 && { android: androidConfig }),
    ...config,
  };
};