module Match
  class Runner
    attr_accessor :changes_to_commit

    def run(params)
      FastlaneCore::PrintTable.print_values(config: params,
                                         hide_keys: [:workspace],
                                             title: "Summary for match #{Match::VERSION}")

      UI.error("Enterprise profiles are currently not officially supported in _match_, you might run into issues") if Match.enterprise?

      params[:workspace] = GitHelper.clone(params[:git_url], params[:shallow_clone], skip_docs: params[:skip_docs], branch: params[:git_branch])
      spaceship = SpaceshipEnsure.new(params[:username]) unless params[:readonly]

      if params[:app_identifier].kind_of?(Array)
        app_identifiers = params[:app_identifier]
      else
        app_identifiers = params[:app_identifier].to_s.split(/\s*,\s*/).uniq
      end

      # Verify the App ID (as we don't want 'match' to fail at a later point)
      if spaceship
        app_identifiers.each do |app_identifier|
          spaceship.bundle_identifier_exists(username: params[:username], app_identifier: app_identifier)
        end
      end

      # Certificate
      cert_id = fetch_certificate(params: params)
      spaceship.certificate_exists(username: params[:username], certificate_id: cert_id) if spaceship

      # Provisioning Profiles
      app_identifiers.each do |app_identifier|
        uuid = fetch_provisioning_profile(params: params,
                                  certificate_id: cert_id,
                                  app_identifier: app_identifier)
        spaceship.profile_exists(username: params[:username], uuid: uuid) if spaceship
      end

      # Done
      if self.changes_to_commit and !params[:readonly]
        message = GitHelper.generate_commit_message(params)
        GitHelper.commit_changes(params[:workspace], message, params[:git_url], params[:git_branch])
      end

      # Print a summary table for each app_identifier
      app_identifiers.each do |app_identifier|
        TablePrinter.print_summary(app_identifier: app_identifier, type: params[:type])
      end

      UI.success "All required keys, certificates and provisioning profiles are installed 🙌".green
    rescue Spaceship::Client::UnexpectedResponse, Spaceship::Client::InvalidUserCredentialsError, Spaceship::Client::NoUserCredentialsError => ex
      UI.error("An error occured while verifying your certificates and profiles with the Apple Developer Portal.")
      UI.error("If you already have your certificates stored in git, you can run `match` in readonly mode")
      UI.error("to just install the certificates and profiles without accessing the Dev Portal.")
      UI.error("To do so, just pass `readonly: true` to your match call.")
      raise ex
    ensure
      GitHelper.clear_changes
    end

    def fetch_certificate(params: nil)
      cert_type = :distribution
      cert_type = :development if params[:type] == "development"
      cert_type = :enterprise if Match.enterprise? && params[:type] == "enterprise"

      certs = Dir[File.join(params[:workspace], "certs", cert_type.to_s, "*.cer")]
      keys = Dir[File.join(params[:workspace], "certs", cert_type.to_s, "*.p12")]

      if certs.count == 0 or keys.count == 0
        UI.important "Couldn't find a valid code signing identity in the git repo for #{cert_type}... creating one for you now"
        UI.crash!("No code signing identity found and can not create a new one because you enabled `readonly`") if params[:readonly]
        cert_path = Generator.generate_certificate(params, cert_type)
        self.changes_to_commit = true
      else
        cert_path = certs.last
        UI.message "Installing certificate..."

        if FastlaneCore::CertChecker.installed?(cert_path)
          UI.verbose "Certificate '#{File.basename(cert_path)}' is already installed on this machine"
        else
          Utils.import(cert_path, params[:keychain_name])
        end

        # Import the private key
        # there seems to be no good way to check if it's already installed - so just install it
        Utils.import(keys.last, params[:keychain_name])
      end

      return File.basename(cert_path).gsub(".cer", "") # Certificate ID
    end

    # @return [String] The UUID of the provisioning profile so we can verify it with the Apple Developer Portal
    def fetch_provisioning_profile(params: nil, certificate_id: nil, app_identifier: nil)
      prov_type = params[:type].to_sym

      profile_name = [Match::Generator.profile_type_name(prov_type), app_identifier].join("_").gsub("*", '\*') # this is important, as it shouldn't be a wildcard
      profiles = Dir[File.join(params[:workspace], "profiles", prov_type.to_s, "#{profile_name}.mobileprovision")]

      # Install the provisioning profiles
      profile = profiles.last

      if params[:force_for_new_devices] && !params[:readonly]
        params[:force] = device_count_different?(profile: profile) unless params[:force]
      end

      if profile.nil? or params[:force]
        UI.user_error!("No matching provisioning profiles found and can not create a new one because you enabled `readonly`") if params[:readonly]
        profile = Generator.generate_provisioning_profile(params: params,
                                                       prov_type: prov_type,
                                                  certificate_id: certificate_id,
                                                  app_identifier: app_identifier)
        self.changes_to_commit = true
      end

      FastlaneCore::ProvisioningProfile.install(profile)

      parsed = FastlaneCore::ProvisioningProfile.parse(profile)
      uuid = parsed["UUID"]

      Utils.fill_environment(Utils.environment_variable_name(app_identifier: app_identifier,
                                                                       type: prov_type),
                             uuid)

      # TeamIdentifier is returned as an array, but we're not sure why there could be more than one
      Utils.fill_environment(Utils.environment_variable_name_team_id(app_identifier: app_identifier,
                                                                               type: prov_type),
                             parsed["TeamIdentifier"].first)

      Utils.fill_environment(Utils.environment_variable_name_profile_name(app_identifier: app_identifier,
                                                                                    type: prov_type),
                             parsed["Name"])

      return uuid
    end

    def device_count_different?(profile: nil)
      if profile
        parsed = FastlaneCore::ProvisioningProfile.parse(profile)
        uuid = parsed["UUID"]
        portal_profile = Spaceship.provisioning_profile.all.detect { |i| i.uuid == uuid }

        if portal_profile
          profile_device_count = portal_profile.devices.count
          portal_device_count = Spaceship.device.all.count
          return portal_device_count != profile_device_count
        end
      end
      return false
    end
  end
end