const { withPodfile } = require('expo/config-plugins');

const MARKER = '# @generated withPodsDeploymentTarget';

// CocoaPods resource bundle targets (e.g. RNCAsyncStorage_resources, RNSVGFilters)
// keep the deployment target declared in their podspec, ignoring `platform :ios`.
// Xcode 27 rejects targets below iOS 15, so raise every pod target to the app's minimum.
const SNIPPET = `
    ${MARKER}
    min_ios_target = podfile_properties['ios.deploymentTarget'] || '16.4'
    installer.pods_project.targets.each do |target|
      target.build_configurations.each do |build_config|
        current = build_config.build_settings['IPHONEOS_DEPLOYMENT_TARGET']
        if current.nil? || Gem::Version.new(current) < Gem::Version.new(min_ios_target)
          build_config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = min_ios_target
        end
      end
    end
`;

module.exports = function withPodsDeploymentTarget(config) {
  return withPodfile(config, (config) => {
    const podfile = config.modResults;
    if (podfile.contents.includes(MARKER)) {
      return config;
    }
    const anchor = /post_install do \|installer\|\n/;
    if (!anchor.test(podfile.contents)) {
      throw new Error('withPodsDeploymentTarget: post_install block not found in Podfile');
    }
    podfile.contents = podfile.contents.replace(anchor, (match) => match + SNIPPET);
    return config;
  });
};