#!/usr/bin/env ruby
# frozen_string_literal: true

$LOAD_PATH.unshift 'lib'
require 'optparse'
require 'sdr_client'

options = {}
global = OptionParser.new do |opts|
  opts.on('--service-url URL', 'Connect to the host at this URL') do |url|
    options[:url] = url
  end
  opts.on('-h', '--help', 'Display this screen') do
    puts <<~HELP
      DESCRIPTION:
        The SDR Command Line Interface is a tool to interact with the Stanford Digital Repository.

      SYNOPSIS:
        sdr [options] <command>

      OPTIONS:
        --service-url (string)
        Override the command's default URL with the given URL.

        -h, --help
        Displays this screen

      COMMANDS
        deposit
        deposit files to the SDR

        login
        Will prompt for email & password and exchange it for an login token, which it saves in ~/.sdr/token

    HELP
    exit
  end
end

global.order!
command = ARGV.shift

subcommands = {
  'deposit' => OptionParser.new do |opts|
    opts.on('--label LABEL', 'The object label') do |label|
      options[:label] = label
    end

    opts.on('--admin-policy ADMIN_POLICY', 'The druid identifier of the admin policy object') do |apo|
      options[:apo] = apo
    end

    opts.on('--type TYPE', 'The object type to create. ' \
            'One of: "image", "book", "document", "map", "manuscript", "media", ' \
            '"three_dimensional", "collection", or "admin_policy"') do |type|
      if %w[image book document map manuscript media three_dimensional collection admin_policy].include?(type)
        options[:type] = "http://cocina.sul.stanford.edu/models/#{type}.jsonld"
      end
    end

    opts.on('--collection COLLECTION', 'The druid identifier of the collection object') do |collection|
      options[:collection] = collection
    end

    opts.on('--catkey CATKEY', 'The catkey for this item') do |catkey|
      options[:catkey] = catkey
    end

    opts.on('--source-id SOURCE_ID', 'The source id for this object') do |source_id|
      options[:source_id] = source_id
    end

    opts.on('--viewing-direction DIRECTION', 'The viewing direction (if a book). ' \
            'Either "left-to-right" or "right-to-left"') do |viewing_direction|
      options[:viewing_direction] = viewing_direction if %w[left-to-right right-to-left].include?(viewing_direction)
    end

    opts.on('--files-metadata FILES_METADATA', 'A JSON object representing per-file metadata') do |files_metadata|
      options[:files_metadata] = JSON.parse(files_metadata)
    end

    opts.on('--strategy STRATEGY',
            'The strategy to use for distributing files into filesets. Either "default" or "filename"') do |strategy|
      strategy_class = case strategy
                       when 'filename'
                         SdrClient::Deposit::MatchingFileGroupingStrategy
                       when 'default'
                         SdrClient::Deposit::SingleFileGroupingStrategy
                       else
                         warn "Unknown strategy #{strategy}"
                         exit(1)
                       end
      options[:grouping_strategy] = strategy_class
    end

    opts.on('-h', '--help', 'Display this screen') do
      puts opts
      exit
    end
  end,
  'login' => OptionParser.new
}

unless subcommands.key?(command)
  puts "unknown command '#{command}'"
  exit
end

subcommands[command].order!

options[:files] = ARGV unless ARGV.empty?
SdrClient::CLI.start(command, options)