#!/usr/bin/env ruby

require 'uri'
require 'rubygems'
require 'highline/import'
require 'trollop'
require "sup"

$opts = Trollop::options do
  version "sup-add (sup #{Redwood::VERSION})"
  banner <<EOS
Adds a source to the Sup source list.

Usage:
  sup-add [options] <source uri>+

where <source uri>+ is one or more source URIs.

For mbox files on local disk, use the form:
    mbox:<path to mbox file>, or
    mbox://<path to mbox file>

For mbox files on remote machines, use the form:
    mbox+ssh://<machine name>/<path to mbox file>

For IMAP folders, use the form (note no username or password!):
    imap://<machine name>/          # unsecure, "INBOX" folder  
    imap://<machine name>/<folder>  # unsecure, arbitrary
    imaps://<machine name>/         # secure, "INBOX" folder
    imaps://<machine name>/<folder> # secure, arbitrary folder 

For Maildir folders, use the form:
    maildir:<path to Maildir directory>; or
    maildir://<path to Maildir directory>

Options are:
EOS
  opt :archive, "Automatically archive all new messages from these sources."
  opt :unusual, "Do not automatically poll these sources for new messages."
  opt :labels, "A comma-separated set of labels to apply to all messages from this source", :type => String
  opt :force_new, "Create a new account for this source, even if one already exists."
end

Trollop::die "require one or more sources" if ARGV.empty?

## for sources that require login information, prompt the user for
## that. also provide a list of previously-defined login info to
## choose from, if any.
def get_login_info uri, sources
  uri = URI(uri)
  accounts = sources.map do |s|
    next unless s.respond_to?(:username)
    suri = URI(s.uri)
    [suri.host, s.username, s.password]
  end.compact.uniq.sort_by { |h, u, p| h == uri.host ? 0 : 1 }

  username, password = nil, nil
  unless accounts.empty? || $opts[:force_new]
    say "Would you like to use the same account as for a previous source for #{uri}?"
    choose do |menu|
      accounts.each do |host, olduser, oldpw|
        menu.choice("Use the account info for #{olduser}@#{host}") { username, password = olduser, oldpw }
      end
      menu.choice("Use a new account") { }
      menu.prompt = "Account selection? "
    end
  end

  unless username && password
    username = ask("Username for #{uri.host}: ");
    password = ask("Password for #{uri.host}: ") { |q| q.echo = false }
    puts # why?
  end

  [username, password]
end

$terminal.wrap_at = :auto
Redwood::start
index = Redwood::Index.init

index.lock_interactively or exit

begin
  Redwood::SourceManager.load_sources

  ARGV.each do |uri|
    labels = $opts[:labels] ? $opts[:labels].split(/\s*,\s*/).uniq : []

    if !$opts[:force_new] && Redwood::SourceManager.source_for(uri)
      say "Already know about #{uri}; skipping."
      next
    end

    parsed_uri = URI(uri)

    source = 
      case parsed_uri.scheme
      when "mbox+ssh"
        say "For SSH connections, if you will use public key authentication, you may leave the username and password blank."
        say ""
        username, password = get_login_info uri, Redwood::SourceManager.sources
        Redwood::MBox::SSHLoader.new uri, username, password, nil, !$opts[:unusual], $opts[:archive], nil, labels
      when "imap", "imaps"
        username, password = get_login_info uri, Redwood::SourceManager.sources
        Redwood::IMAP.new uri, username, password, nil, !$opts[:unusual], $opts[:archive], nil, labels
      when "maildir"
        Redwood::Maildir.new uri, nil, !$opts[:unusual], $opts[:archive], nil, labels
      when "mbox"
        Redwood::MBox::Loader.new uri, nil, !$opts[:unusual], $opts[:archive], nil, labels
      when nil
        Trollop::die "Sources must be specified with an URI"
      else
        Trollop::die "Unknown source type #{parsed_uri.scheme.inspect}"      
      end
    say "Adding #{source}..."
    Redwood::SourceManager.add_source source
  end
ensure
  index.save
  index.unlock
  Redwood::finish
end