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

require 'optparse'

require 'pg_export'

ENV['KEEP_DUMPS'] = ENV['KEEP_DUMPS'] || '10'
ENV['GATEWAY'] = 'ftp'

interactive = false
database = nil

option_parser = OptionParser.new do |opts|
  opts.banner = 'Usage: pg_export [options]'

  opts.on('-g', '--gateway GATEWAY', String, '[Optional] ssh or ftp (default: ftp)') do |g|
    ENV['GATEWAY'] = g
  end

  opts.on('-d', '--database DATABASE', String, '[Required] Name of the database to export') do |d|
    database = d
  end

  opts.on('-k', '--keep [KEEP]', String, "[Optional] Number of dump files to keep on FTP (default: #{ENV['KEEP_DUMPS']})") do |keep|
    ENV['KEEP_DUMPS'] = keep
  end

  opts.on('-t', '--timestamped', '[Optional] Enables log messages with timestamps') do
    ENV['LOGGER_FORMAT'] = 'timestamped'
  end

  opts.on('-m', '--muted', '[Optional] Mutes log messages (overrides -t option)') do
    ENV['LOGGER_FORMAT'] = 'muted'
  end

  opts.on('-i', '--interactive', '[Optional] Interactive command line mode - for restoring dumps into databases') do
    interactive = true
  end

  opts.on('-v', '--version', 'Show version') do
    puts PgExport::VERSION
    exit
  end

  opts.on('-h', '--help', 'Show this message') do
    puts opts
    exit
  end

  opts.separator "\nSetting can be verified by running following commands:"

  opts.on('-c', '--configuration', 'Prints the configuration') do
    require 'pg_export/container'
    PgExport::Container.start(:config)
    puts PgExport::Container['config'].to_h
    exit
  end

  opts.on('-w', '--welcome', 'Tries connecting to the gateway (FTP or SSH) to verify the connection') do
    require 'pg_export/container'
    PgExport::Container.start(ENV['GATEWAY'].to_sym)
    gateway = PgExport::Container['factories.gateway_factory'].gateway
    puts gateway.welcome
    exit
  end
end

begin
  option_parser.parse!
rescue OptionParser::ParseError => e
  warn e.message.capitalize
  warn 'Type "pg_export -h" for available options'
  exit
end

require 'pg_export/container'

begin
  pg_export =
    if interactive
      PgExport.interactive
    else
      PgExport.plain
    end
rescue PgExport::InitializationError => e
  warn 'Unable to initialize PgExport due to invalid configuration. Check you ENVs.'
  warn "Detailed message: #{e.message}"
  exit
end

pg_export.call(database) do |result|
  result.success { puts 'Success' }
  result.failure { |outcome| warn outcome[:message] }
end