bankbot.lic

# want_script_output
=begin
  Documentation: https://elanthipedia.play.net/Lich_script_repository#bankbot
=end

custom_require.call(%w[common common-validation events])

class Bankbot
  def initialize
    Flags.add('tip-accepted', '.* accepts your tip and slips it away with a smile')
    Flags.add('tip-declined', '.* declines your tip offer')
    Flags.add('tip-expired', 'Your tip offer to .* has expired', 'Your tip offer has expired')
    # This provides a default balance of 0 for all currencies
    @ledger = Hash.new { |hash, key| hash[key] = Hash.new { |h, k| h[k] = 0 } }
    # Convert symbols to strings
    load_bankbot_ledger.each { |k, v| @ledger[k.to_s] = v }
    echo("Initialized ledger: #{@ledger}")

    fput('avoid !all')
    fput('avoid whispering')
  end

  def help(character)
    help_content.each { |line| fput "whisper #{character} #{line}" }
  end

  # TODO: Do not prefix reader method names with get_.
  def help_content
    [
      'I accept coins via TIPs to hold for you.',
      'Supported commands are:',
      '  (help) - this list',
      '  (bal|balance) - view your current balance',
      '  (with|withdraw) [amount] [currency] - withdraw [amount] [currency] from your bankbot balance.',
      '  (with|withdraw) all [currency] - withdraw all [currency] from your bankbot balance.',
      '  (transfer) [amount] [currency] [destination] - transfer [amount] [currency] from your bankbot balance to the [destination] account (case-sensitive). Destination character must already have a bankbot account.',
      '  (transfer) all [currency] [destination] - transfer all [currency] from your bankbot balance to the [destination] account.',
      # "  (proxy) set [character name] - all deposits you make will now be directed to the account of [character name]. This overwrites any previous proxy. [Character name] must already have an account with bankbot.",
      # "  (proxy) (list|clear) - list or clear your deposit proxy.",
      '  (where|room|location) - view the current location of bankbot',
      "Help, balance, transfer, and location can be done via LNet private message: ';chat to #{checkname} [command]'."
    ]
  end

  def report_balance(character)
    pretty_print = get_balance(character)
    fput "whisper #{character} Your current balance is: #{pretty_print}."
  end

  def get_balance(character)
    $CURRENCIES.map { |currency| "#{@ledger[character][currency]} #{currency}" }.join(', ')
  end

  def deposit(character, amount, currency)
    unless currency
      log(character, 'deposit', amount, currency, 'currency not recognized')
      fput "whisper #{character} I'm sorry, I don't recognize the currency '#{currency}'."
      return
    end

    case DRC.bput('accept tip', 'But you have no tip offers outstanding', "You accept #{character}'s tip and slip it away", "But #{character} isn't here")
    when 'But you have no tip offers outstanding', /But .* isn't here/i
      log(character, 'deposit', amount, currency, 'character not found')
      return
    when /You accept .*'s tip and slip it away/i
      @ledger[character][currency] += amount
      log(character, 'deposit', amount, currency, 'succeeded')
    end
  end

  def withdraw_all(character, currency)
    amount = @ledger[character][currency]

    if amount < 1
      log(character, 'withdrawal all', amount, currency, 'no balance to withdrawal all')
      fput "whisper #{character} You do not have any #{currency} to withdraw."
      return
    end

    log(character, 'withdrawal all', 'all', currency, 'withdrawal all attempted')
    withdraw(character, amount, currency)
  end

  def withdraw(character, amount, currency)
    unless currency
      log(character, 'withdrawal', amount, currency, 'currency not recognized')
      fput "whisper #{character} I'm sorry, I don't recognize the currency '#{currency}'."
      return
    end

    if amount < 1
      log(character, 'withdrawal', amount, currency, 'invalid withdrawal amount')
      fput "whisper #{character} That is an invalid amount to withdraw."
      return
    end

    if @ledger[character][currency] < amount
      log(character, 'withdrawal', amount, currency, 'insufficient funds')
      fput "whisper #{character} You don't have that much money."
      return
    end

    Flags.reset('tip-accepted')
    Flags.reset('tip-expired')
    Flags.reset('tip-declined')
    case DRC.bput("tip #{character} #{amount} #{currency}", 'You offer', "I don't know who", 'you really should keep every bronze you can get your hands on', 'You already have a tip offer outstanding')
    when "I don't know who"
      log(character, 'withdrawal', amount, currency, 'character not found')
      return
    when 'You already have a tip offer outstanding'
      fput "whisper #{character} Sorry, someone else is in the middle of a withdrawal. Please try again in a moment."
      log(character, 'withdrawal', amount, currency, 'withdrawal already pending')
      return
    when 'you really should keep every bronze you can get your hands on'
      echo '***ERROR*** UNABLE TO TIP DUE TO LOW CIRCLE, EXITING'
      # TODO: Report error to person attempting a withdrawal
      exit
    end

    pause 0.5 until Flags['tip-accepted'] || Flags['tip-expired'] || Flags['tip-declined']

    if Flags['tip-expired']
      log(character, 'withdrawal', amount, currency, 'expired')
    end

    if Flags['tip-declined']
      log(character, 'withdrawal', amount, currency, 'declined')
    end

    return unless Flags['tip-accepted']

    @ledger[character][currency] -= amount
    log(character, 'withdrawal', amount, currency, 'succeeded')
  end

  def transfer(character, amount, currency, destination)
    # TODO: Send success/failure message over LNet if necessary
    unless currency
      log(character, 'transfer', amount, currency, 'currency not recognized')
      fput "whisper #{character} I'm sorry, I don't recognize the currency '#{currency}'."
      return
    end

    if amount < 1
      log(character, 'transfer', amount, currency, 'invalid transfer amount')
      fput "whisper #{character} That is an invalid amount to transfer."
      return
    end

    if @ledger[character][currency] < amount
      log(character, 'transfer', amount, currency, 'insufficient funds')
      fput "whisper #{character} You don't have that much money."
      return
    end

    # TODO: Make case-insensitive
    # TODO: Validate against lnet and retry
    unless @ledger.key?(destination)
      log(character, 'transfer', amount, currency, "destination does not exist: #{destination}")
      fput "whisper #{character} The destination character does not have a bankbot account."
      return
    end

    @ledger[character][currency] -= amount
    @ledger[destination][currency] += amount
    log(character, 'transfer', amount, currency, "succeeded to: #{destination}")
    fput "whisper #{character} Transfer succeeded!"
    # TODO: Send balance to recipient
  end

  def transfer_all(character, currency, destination)
    amount = @ledger[character][currency]

    if amount < 1
      log(character, 'transfer all', amount, currency, 'no balance to transfer all')
      fput "whisper #{character} You do not have any #{currency} to transfer."
      return
    end

    log(character, 'transfer all', 'all', currency, 'transfer all attempted')
    transfer(character, amount, currency, destination)
  end

  private

  def log(character, action, amount, currency, message)
    save_bankbot_transaction("#{character}, #{action}, #{amount}, #{currency}, #{message}", @ledger)
    echo("Logging: #{character}, #{action}, #{amount}, #{currency}, #{message}")
    echo("Ledger: #{@ledger}")
  end

  def determine_currency(input)
    $CURRENCIES.find { |s| s.downcase.include?(input.downcase) }
  end
end

class BankbotInputSanitizer
  attr_reader :bankbot

  def initialize
    @bankbot = Bankbot.new
  end

  def help(character)
    @bankbot.help(character)
  end

  def deposit(character, amount, currency)
    sanitized_amount = amount.to_i
    sanitized_currency = determine_currency(currency)
    @bankbot.deposit(character, sanitized_amount, sanitized_currency)
  end

  def withdraw(character, amount, currency)
    sanitized_amount = amount.to_i
    sanitized_currency = determine_currency(currency)
    @bankbot.withdraw(character, sanitized_amount, sanitized_currency)
  end

  def withdraw_all(character, currency)
    sanitized_currency = determine_currency(currency)
    @bankbot.withdraw_all(character, sanitized_currency)
  end

  def report_balance(character)
    @bankbot.report_balance(character)
  end

  def transfer(character, amount, currency, destination)
    sanitized_amount = amount.to_i
    sanitized_currency = determine_currency(currency)
    @bankbot.transfer(character, sanitized_amount, sanitized_currency, destination)
  end

  def transfer_all(character, currency, destination)
    sanitized_currency = determine_currency(currency)
    @bankbot.transfer_all(character, sanitized_currency, destination)
  end

  def get_balance(character)
    @bankbot.get_balance(character)
  end

  def help_content
    @bankbot.help_content
  end

  private

  def determine_currency(input)
    $CURRENCIES.find { |s| s.downcase.include?(input.downcase) }
  end
end

class BankbotController
  attr_reader :validator, :sanitizer

  def initialize(validator)
    @validator = validator
    @sanitizer = BankbotInputSanitizer.new
  end

  def whisper_help(character)
    @sanitizer.help(character)
  end

  def accept_tip(character, amount, currency)
    if @validator.valid?(character)
      @sanitizer.deposit(character, amount, currency)
      whisper_balance(character)
    else
      fput('decline tip')
    end
  end

  def withdraw(character, amount, currency)
    @sanitizer.withdraw(character, amount, currency)
    whisper_balance(character)
  end

  def withdraw_all(character, currency)
    @sanitizer.withdraw_all(character, currency)
    whisper_balance(character)
  end

  def whisper_balance(character)
    @sanitizer.report_balance(character)
  end

  def whisper_transfer(character, amount, currency, destination)
    @sanitizer.transfer(character, amount, currency, destination)
    whisper_balance(character)
  end

  def whisper_transfer_all(character, currency, destination)
    @sanitizer.transfer_all(character, currency, destination)
    whisper_balance(character)
  end

  def whisper_unknown_command(character)
    fput "whisper #{character} I'm sorry, I did not understand that command"
    @sanitizer.help(character)
  end

  def send_slack_token(character)
    @validator.send_slack_token(character)
  end

  def lnet_balance(character)
    @validator.send_bankbot_balance(character, @sanitizer.get_balance(character))
  end

  def lnet_help(character)
    @validator.send_bankbot_help(character, @sanitizer.help_content)
  end

  def lnet_transfer(character, amount, currency, destination)
    @sanitizer.transfer(character, amount, currency, destination)
    lnet_balance(character)
  end

  def lnet_transfer_all(character, currency, destination)
    @sanitizer.transfer_all(character, currency, destination)
    lnet_balance(character)
  end

  def lnet_send_location(character)
    @validator.send_bankbot_location(character)
  end
end

class BankbotParser
  attr_reader :validator, :controller

  def initialize(announce, greet)
    @validator = CharacterValidator.new(announce, false, greet, 'Bankbot')
    @controller = BankbotController.new(@validator)
  end

  def handle_new_character_seen(character)
    @validator.validate(character)
  end

  def handle_whisper(character, message)
    return unless @validator.valid?(character)

    case message
    when /^(help)$/i
      @controller.whisper_help(character)
    when /^(with|withdraw) (\d+) (K.*|L.*|D.*)$/i
      amount = Regexp.last_match(2)
      currency = Regexp.last_match(3)
      @controller.withdraw(character, amount, currency)
    when /^(with|withdraw) all (K.*|L.*|D.*)$/i
      currency = Regexp.last_match(2)
      @controller.withdraw_all(character, currency)
    when /^(bal|balance)$/i
      @controller.whisper_balance(character)
    when /^(transfer) (\d+) (K.*|L.*|D.*) (.*)$/i
      amount = Regexp.last_match(2)
      currency = Regexp.last_match(3)
      destination = Regexp.last_match(4)
      @controller.whisper_transfer(character, amount, currency, destination)
    when /(transfer) all (K.*|L.*|D.*) (.*)$/i
      currency = Regexp.last_match(2)
      destination = Regexp.last_match(3)
      @controller.whisper_transfer_all(character, currency, destination)
    else
      @controller.whisper_unknown_command(character)
    end
  end

  def handle_lnet_player_message(character, message)
    @validator.confirm(character)

    # TODO: Handle the 'else' case
    case message
    when /^RequestSlackToken/
      @controller.send_slack_token(character)
    when /^(bal|balance)$/i
      @controller.lnet_balance(character)
    when /^(help)$/i
      @controller.lnet_help(character)
    when /^(transfer) (\d+) (K.*|L.*|D.*) (.*)$/i
      amount = Regexp.last_match(2)
      currency = Regexp.last_match(3)
      destination = Regexp.last_match(4)
      @controller.lnet_transfer(character, amount, currency, destination)
    when /^(transfer) all (K.*|L.*|D.*) (.*)$/i
      currency = Regexp.last_match(2)
      destination = Regexp.last_match(3)
      @controller.lnet_transfer_all(character, currency, destination)
    when /^(where|room|location)$/i
      @controller.lnet_send_location(character)
    end
  end

  def handle_lnet_server_message(message)
    case message
    when /^(.*) is tuned to the following channels.*$/
      character = Regexp.last_match(1)
      @validator.confirm(character)
    when /^(.*) is connected but not tuned to any channels.*$/
      character = Regexp.last_match(1)
      @validator.confirm(character)
    end
  end

  def handle_tip(character, message)
    case message
    when /^(\d+) (\w+)$/
      amount = Regexp.last_match(1)
      currency = Regexp.last_match(2)
      @controller.accept_tip(character, amount, currency)
    end
  end
end

def warn_before_run
  # Pause script and warn that it may cause account/plat loss
  DRC.message("WARNING: bankbot is no longer maintained, or supported.")
  DRC.message("WARNING: bankbot usage may result in your account being banned, and/or any moneys deposited being forfeit to Simutronics")
  DRC.message("WARNING: use at your own risk")
  DRC.message(" ")
  DRC.message("WARNING: Unpause the script to continue or #{$clean_lich_char}kill the script to stop.")

  pause_script
end

arg_definitions = [
  [
    { name: 'start', regex: /start/i, description: 'Required: prevents accidentally starting up bankbot' },
    { name: 'announce', regex: /announce/i, optional: true, description: 'If arg is present, bankbot will announce its presence in LNet' },
    { name: 'greet', regex: /greet/i, optional: true, description: 'If arg is present, bankbot will greet characters after validating (but only once)' }
  ]
]

args = parse_args(arg_definitions)

# Warn the script user that this is designed to perform actions that may get them banned, or lose plats.
warn_before_run

parser = BankbotParser.new(args.announce, args.greet)

@last_room_list = []
loop do
  line = script.gets?
  pause 0.05 unless line

  if DRRoom.pcs != @last_room_list
    (DRRoom.pcs - @last_room_list).each { |character| parser.handle_new_character_seen(character) }
    @last_room_list = DRRoom.pcs
  end

  case line
  when /^You catch (.*) making a grab for your pockets!$/
    thief = Regexp.last_match(1)
    echo "***EXITING, CAUGHT #{thief} TRYING TO STEAL***"
    fput('exit')
  when /^(.*) whispers, "(.*)"$/i
    character = Regexp.last_match(1)
    message = Regexp.last_match(2)
    parser.handle_whisper(character, message)
  when /^(.*) offers you a tip of (.*)\.  Type ACCEPT TIP, to accept it or DECLINE TIP to refuse it\.$/
    character = Regexp.last_match(1)
    message = Regexp.last_match(2)
    parser.handle_tip(character, message)
  when /^\[server\]: "DR:(.*)"\s*(?:\(\d{1,2}:\d{1,2}:\d{1,2}\))?$/
    message = Regexp.last_match(1)
    parser.handle_lnet_server_message(message)
  when /^\[Private\]-.*:(.*): "(.*)"/
    character = Regexp.last_match(1)
    message = Regexp.last_match(2)
    parser.handle_lnet_player_message(character, message)
  end
end