module Bundler::FriendlyErrors

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 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

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
  when *[defined?(Java::JavaLang::OutOfMemoryError) && Java::JavaLang::OutOfMemoryError].compact
    Bundler.ui.error "\nYour JVM has run out of memory, and Bundler cannot continue. " \
      "You can decrease the amount of memory Bundler needs by removing gems from your Gemfile, " \
      "especially large gems. (Gems can be as large as hundreds of megabytes, and Bundler has to read those files!). " \
      "Alternatively, you can increase the amount of memory the JVM is able to use by running Bundler with jruby -J-Xmx1024m -S bundle (JRuby defaults to 500MB)."
  else request_issue_report_for(error)
  end
end

def request_issue_report_for(e)
  Bundler.ui.info <<-EOS.gsub(/^ {8}/, "")
    --- ERROR REPORT TEMPLATE -------------------------------------------------------
    # Error Report
    ## Questions
    Please fill out answers to these questions, it'll help us figure out
    why things are going wrong.
    - **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...
    - **Have you tried any solutions posted on similar issues in our issue tracker, stack overflow, or google?**
      I tried...
    - **Have you read our issues document, https://github.com/bundler/bundler/blob/master/doc/contributing/ISSUES.md?**
      ...
    ## Backtrace
    ```
    #{e.class}: #{e.message}
      #{e.backtrace && e.backtrace.join("\n          ").chomp}
    ```
    #{Bundler::Env.new.report}
    --- 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