# cheeseBot
# Copyright (C) 2026 Eri (csxkdv/nxkdv) nxkdv@thenight.club
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

require 'discordrb'
require 'securerandom'

class CheeseBot
    def initialize
        @bot = Discordrb::Bot.new(
            token: ENV['BOT_TOKEN'],
            intents: [:servers, :server_messages]
        )
    
        load_commands
        start_bot
    end

    def run
        @bot.run
    end

    private

    def load_commands
        Dir["#{File.dirname(__FILE__)}/commands/**/*.rb"].each do |file|
            require file
        end

        Commands.constants.each do |const|
            cmd = Commands.const_get(const)

            if cmd.is_a?(Module) && cmd.respond_to?(:register)
                cmd.register(@bot)
                puts "Loaded command: #{const}"
                sleep(2)
            end
        end
    end

    def start_bot
        @bot.ready do
            puts "#{@bot.profile.username} is online... GIVE ME THE CHEESE."
            @bot.update_status("online", "We're so back.", nil, 0, false, 0)
        end

        @bot.server_create do |event|
            server = event.server
            bot_profile = server.bot

            # Prevent spam on restart
            # Check if the bot joined a server in the last 60 seconds
            next if bot_profile.joined_at && (Time.now - bot_profile.joined_at) > 60

            # Try system channel first.
            # If nil or no permissions, search text channels.
            channel = server.system_channel
            
            unless channel && bot_profile.permission?(:send_messages, channel)
                channel = server.text_channels.find { |c| bot_profile.permission?(:send_messages, c) }
            end

            next unless channel

            random_color = ("0x" + Random.bytes(3).unpack1('H*')).to_i(16)

            channel.send_embed do |embed|
                embed.title = "cheeseBot has joined!"
                embed.description = "What now?"
                embed.color = random_color
                embed.timestamp = Time.now
                
                embed.add_field(name: "Well...", value: "You can start with the /help command!")
                embed.add_field(name: "And then?", value: "Start trying out the rest of commands!")
                embed.add_field(name: "Sounds good!", value: "We hope you enjoy cheeseBot! Stay cheesy :)")
                
                embed.footer = Discordrb::Webhooks::EmbedFooter.new(
                    text: "Be advised this bot automatically sends DMs when detected. Use /blacklist to not receive DMs."
                )
            end
        end
    end
end