default_platform(:android)

platform :android do
  desc "Submit a new App Bundle to the Google Play Internal Track"
  lane :internal do
    # This lane assumes that `flutter build appbundle` has already been run from the flutter root.
    upload_to_play_store(
      track: 'internal',
      aab: 'build/app/outputs/bundle/release/app-release.aab',
      skip_upload_metadata: true,
      skip_upload_images: true,
      skip_upload_screenshots: true
    )
  end

  desc "Build the application locally and upload it as a new GitHub release"
  lane :release_github do
    # Read pubspec.yaml to get the version
    pubspec_path = File.expand_path("../pubspec.yaml", __dir__)
    unless File.exist?(pubspec_path)
      UI.user_error!("Could not find pubspec.yaml at #{pubspec_path}")
    end
    
    pubspec_content = File.read(pubspec_path)
    version_match = pubspec_content.match(/^version:\s*([^+]+)/)
    unless version_match
      UI.user_error!("Could not extract version from pubspec.yaml")
    end
    
    version = version_match[1].strip
    tag_name = "v#{version}"
    UI.message("Extracted version: #{version} (tag: #{tag_name})")

    # Load release notes from CHANGELOG.md
    changelog_path = File.expand_path("../CHANGELOG.md", __dir__)
    release_notes = "Automated local release via Fastlane"
    if File.exist?(changelog_path)
      changelog_content = File.read(changelog_path)
      escaped_version = Regexp.escape(version)
      pattern = /##\s*\[?#{escaped_version}\]?(.*?)(?=##\s*|\z)/m
      match = changelog_content.match(pattern)
      if match
        release_notes = match[1].strip
        UI.message("Loaded release notes from CHANGELOG.md:\n#{release_notes}")
      else
        UI.important("Could not find release notes for version #{version} in CHANGELOG.md. Using default description.")
      end
    else
      UI.important("CHANGELOG.md not found at #{changelog_path}. Using default description.")
    end

    # Handle key.properties swapping if key.github.properties exists
    key_properties_path = File.expand_path("../android/key.properties", __dir__)
    github_properties_path = File.expand_path("../android/key.github.properties", __dir__)
    backup_properties_path = File.expand_path("../android/key.properties.backup", __dir__)

    swapped_properties = false
    if File.exist?(github_properties_path)
      UI.message("Found key.github.properties. Swapping in for the build...")
      if File.exist?(key_properties_path)
        FileUtils.cp(key_properties_path, backup_properties_path)
      end
      FileUtils.cp(github_properties_path, key_properties_path)
      swapped_properties = true
    else
      UI.message("No key.github.properties found. Building with default key.properties...")
    end

    begin
      # Build the Android application
      UI.message("Building Android APK...")
      Dir.chdir(File.expand_path("..", __dir__)) do
        sh("flutter build apk --release --split-per-abi")
      end
    ensure
      # Restore original key.properties if swapped
      if swapped_properties
        UI.message("Restoring original key.properties...")
        if File.exist?(backup_properties_path)
          FileUtils.cp(backup_properties_path, key_properties_path)
          FileUtils.rm(backup_properties_path)
        else
          FileUtils.rm_f(key_properties_path)
        end
      end
    end

    # Find built APKs
    apk_glob = File.expand_path("../build/app/outputs/flutter-apk/*-release.apk", __dir__)
    apks = Dir.glob(apk_glob)
    
    if apks.empty?
      UI.user_error!("No release APKs found matching #{apk_glob}")
    end
    
    UI.message("Found APKs to upload: #{apks.join(', ')}")

    # Retrieve GitHub Token (fall back to gh auth token)
    github_token = ENV["GITHUB_TOKEN"]
    if github_token.nil? || github_token.empty?
      UI.message("GITHUB_TOKEN env variable not set. Retrieving token via GitHub CLI (gh auth token)...")
      begin
        github_token = sh("gh auth token").strip
      rescue => e
        UI.user_error!("Failed to retrieve token from gh CLI. Make sure gh is installed and authenticated, or GITHUB_TOKEN environment variable is set. Error: #{e}")
      end
    end

    UI.message("Creating GitHub Release #{tag_name}...")
    set_github_release(
      repository_name: "twonlyapp/twonly-app",
      api_token: github_token,
      tag_name: tag_name,
      name: "Release #{tag_name}",
      description: release_notes,
      upload_assets: apks
    )
    UI.success("Successfully uploaded release #{tag_name} to GitHub!")

    # F-Droid deployment
    fdroid_repo_dir = "/Users/tobi/Documents/drive/twonly/F-Droid/repo"
    UI.message("Starting F-Droid deployment...")
    FileUtils.mkdir_p(fdroid_repo_dir)

    apks.each do |apk_path|
      basename = File.basename(apk_path)
      new_name = "eu.twonly_v#{version}-#{basename}"
      dest_path = File.join(fdroid_repo_dir, new_name)
      UI.message("Copying APK to F-Droid repo: #{dest_path}")
      FileUtils.cp(apk_path, dest_path)
    end

    fdroid_dir = "/Users/tobi/Documents/drive/twonly/F-Droid"
    update_script = File.join(fdroid_dir, "update.sh")
    if File.exist?(update_script)
      UI.message("Executing F-Droid update script...")
      Dir.chdir(fdroid_dir) do
        sh("chmod +x ./update.sh && ./update.sh")
      end
    else
      UI.important("F-Droid update script not found at #{update_script}")
    end
  end
end