const { withAppBuildGradle } = require("@expo/config-plugins");

// Injects a proper release signingConfig into the generated build.gradle.
// Reads credentials from gradle.properties (populated by build-apk.sh at build time).
// This plugin runs during `expo prebuild` so android/ doesn't need to be committed.
module.exports = function withAndroidReleaseSigning(config) {
  return withAppBuildGradle(config, (mod) => {
    let contents = mod.modResults.contents;

    if (contents.includes("MYAPP_UPLOAD_STORE_FILE")) {
      return mod; // already patched
    }

    const releaseBlock = `        release {
            if (project.hasProperty('MYAPP_UPLOAD_STORE_FILE')) {
                storeFile file(MYAPP_UPLOAD_STORE_FILE)
                storePassword MYAPP_UPLOAD_STORE_PASSWORD
                keyAlias MYAPP_UPLOAD_KEY_ALIAS
                keyPassword MYAPP_UPLOAD_KEY_PASSWORD
            }
        }`;

    // Insert release signingConfig after the closing brace of the debug block
    contents = contents.replace(
      /(signingConfigs\s*\{[\s\S]*?debug\s*\{[\s\S]*?\})/,
      `$1\n${releaseBlock}`
    );

    // Switch the release buildType from debug signing to release signing
    contents = contents.replace(
      /(buildTypes[\s\S]*?release\s*\{[\s\S]*?)signingConfig\s+signingConfigs\.debug/,
      "$1signingConfig signingConfigs.release"
    );

    mod.modResults.contents = contents;
    return mod;
  });
};