# encoding: utf-8
# frozen_string_literal: true
require "cgi"
require "bundler/vendored_thor"

module Bundler
  module FriendlyErrors
  module_function

    def log_error(error)
      case error
      when YamlSyntaxError
        Bundler.ui.error error.message
        Bundler.ui.trace error.orig_exception
      when Dsl::DSLError, GemspecError
        Bundler.ui.error error.message
      when GemRequireError
        Bundler.ui.error error.message
        Bundler.ui.trace error.orig_exception, nil, true
      when BundlerError
        Bundler.ui.error error.message, :wrap => true
        Bundler.ui.trace error
      when Thor::Error
        Bundler.ui.error error.message
      when LoadError
        raise error unless error.message =~ /cannot load such file -- openssl|openssl.so|libcrypto.so/
        Bundler.ui.error "\nCould not load OpenSSL."
        Bundler.ui.warn <<-WARN, :wrap => true
          You must recompile Ruby with OpenSSL support or change the sources in your \
          Gemfile from 'https' to 'http'. Instructions for compiling with OpenSSL \
          using RVM are available at http://rvm.io/packages/openssl.
        WARN
        Bundler.ui.trace error
      when Interrupt
        Bundler.ui.error "\nQuitting..."
        Bundler.ui.trace error
      when Gem::InvalidSpecificationException
        Bundler.ui.error error.message, :wrap => true
      when SystemExit
      else request_issue_report_for(error)
      end
    end

    def exit_status(error)
      case error
      when BundlerError then error.status_code
      when Thor::Error then 15
      when SystemExit then error.status
      else 1
      end
    end

    def request_issue_report_for(e)
      Bundler.ui.info <<-EOS.gsub(/^ {8}/, "")
        --- ERROR REPORT TEMPLATE -------------------------------------------------------
        - What did you do?

          I ran the command `#{$PROGRAM_NAME} #{ARGV.join(" ")}`

        - What did you expect to happen?

          I expected Bundler to...

        - What happened instead?

          Instead, what happened was...


        Error details

            #{e.class}: #{e.message}
              #{e.backtrace && e.backtrace.join("\n              ")}

        #{Bundler::Env.new.report(:print_gemfile => false, :print_gemspecs => false).gsub(/\n/, "\n      ").strip}
        --- TEMPLATE END ----------------------------------------------------------------

      EOS

      Bundler.ui.error "Unfortunately, an unexpected error occurred, and Bundler cannot continue."

      Bundler.ui.warn <<-EOS.gsub(/^ {8}/, "")

        First, try this link to see if there are any existing issue reports for this error:
        #{issues_url(e)}

        If there aren't any reports for this error yet, please create copy and paste the report template above into a new issue. Don't forget to anonymize any private data! The new issue form is located at:
        https://github.com/bundler/bundler/issues/new
      EOS
    end

    def issues_url(exception)
      message = exception.message.lines.first.tr(":", " ").chomp
      message = message.split("-").first if exception.is_a?(Errno)
      "https://github.com/bundler/bundler/search?q=" \
        "#{CGI.escape(message)}&type=Issues"
    end
  end

  def self.with_friendly_errors
    yield
  rescue Exception => e
    FriendlyErrors.log_error(e)
    exit FriendlyErrors.exit_status(e)
  end
end
