module RpgGame

# File lib/rpg_game.rb, line 170
def choose(data:, choice:)
  return { error: "Game over — !rpg start" } if data["done"]

  r = room(data["room"])
  opt = r[:options][choice - 1]
  return { error: "Invalid choice." } unless opt

  if opt[:needs] && !Array(data["inventory"]).include?(opt[:needs])
    return { error: "You need #{opt[:needs]} for that." }
  end

  data = data.dup
  data["moves"] = data["moves"].to_i + 1
  inv = Array(data["inventory"]).dup
  inv << opt[:item] if opt[:item]
  inv.delete(opt[:remove]) if opt[:remove]
  data["inventory"] = inv.uniq
  data["room"] = opt[:next]
  data["done"] = true if %w[win end].include?(opt[:next])
  { data: data, message: format_room(data) }
end

# File lib/rpg_game.rb, line 192
def format_header(title)
  IrcFormat.report_header(tag: "RPG", title: title, style: STYLE_TITLE)
end

# File lib/rpg_game.rb, line 155
def format_room(data)
  r = room(data["room"])
  lines = [format_header("One-Line RPG")]
  lines << r[:text]
  unless data["done"] || r[:options].empty?
    r[:options].each_with_index do |opt, i|
      lines << "#{i + 1}. #{opt[:label]}"
    end
    lines << "Reply: !rpg <1-3>"
  end
  inv = Array(data["inventory"])
  lines << IrcFormat.report_footer("moves #{data['moves']}", inv.empty? ? "no items" : "items: #{inv.join(', ')}")
  lines.join("\n")
end

# File lib/rpg_game.rb, line 137
def load_player(network:, channel:, user:, store: RabbotDb)
  key = "player:#{GameStore.norm_nick(user)}"
  GameStore.load(plugin: PLUGIN, network: network, channel: channel, key: key, store: store)
end

# File lib/rpg_game.rb, line 147
def new_game
  { "room" => "start", "inventory" => [], "moves" => 0, "done" => false }
end

# File lib/rpg_game.rb, line 119
def parse_command(text)
  parts = text.to_s.strip.split(/\s+/)
  return { action: :help } if parts.empty?

  case parts[0].downcase
  when "help"
    { action: :help }
  when "start", "new"
    { action: :start }
  when "status"
    { action: :status }
  when /\A[1-3]\z/
    { action: :choose, choice: parts[0].to_i }
  else
    { error: usage_message }
  end
end

# File lib/rpg_game.rb, line 151
def room(id)
  RpgRooms::ROOMS[id] || RpgRooms::ROOMS["start"]
end

# File lib/rpg_game.rb, line 142
def save_player(network:, channel:, user:, data:, store: RabbotDb)
  key = "player:#{GameStore.norm_nick(user)}"
  GameStore.save(plugin: PLUGIN, network: network, channel: channel, key: key, game: data, store: store)
end

# File lib/rpg_game.rb, line 115
def usage_message
  "Usage: !rpg start | !rpg <1-3> | !rpg status"
end