const { withDangerousMod } = require('@expo/config-plugins');
const fs = require('fs');
const path = require('path');

// Patch jcore-react-native's build.gradle to remove the legacy flatDir block
// and jniLibs.srcDirs. The 'libs' directory no longer exists in the package —
// dependencies are fetched from Maven — but the stale config causes Gradle
// warnings and can stall dependency resolution on newer Gradle versions.
const withJcorePatch = (config) =>
  withDangerousMod(config, [
    'android',
    async (config) => {
      const root = config.modRequest.projectRoot;
      const gradlePath = path.join(
        root,
        'node_modules',
        'jcore-react-native',
        'android',
        'build.gradle',
      );

      if (!fs.existsSync(gradlePath)) return config;

      let content = fs.readFileSync(gradlePath, 'utf-8');

      // Remove flatDir block
      content = content.replace(
        /repositories\s*\{\s*flatDir\s*\{\s*dirs\s+['"]libs['"]\s*\}\s*\}/,
        '',
      );

      // Remove jniLibs.srcDirs line and its enclosing sourceSets block if it becomes empty
      content = content.replace(
        /\s*sourceSets\s*\{\s*main\s*\{\s*jniLibs\.srcDirs\s*=\s*\['libs'\]\s*\}\s*\}/,
        '',
      );

      fs.writeFileSync(gradlePath, content);
      return config;
    },
  ]);

module.exports = withJcorePatch;