package me.bmx.register;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.logging.Logger;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

public class CommandManager
  implements CommandExecutor
{
  private final Register plugin;

  public CommandManager(Register plugin)
  {
    this.plugin = plugin;
  }

  public boolean onCommand(CommandSender sender, Command cmd, String cmdLayout, String[] args)
  {
    if ((sender instanceof Player)) {
      if (sender.hasPermission("metroville.register")) {
        if (args.length == 3) {
          if (args[0].matches("^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$")) {
            if ((args[1].length() >= 2) && (args[1].length() <= 16) && (args[1].equals(args[2]))) {
              HttpURLConnection conn = null;
              BufferedReader reader = null;
              try {
                String parameters = "?user=" + sender.getName() + "&email=" + args[0] + "&password=" + args[1];
                conn = (HttpURLConnection)new URL(this.plugin.getURL() + parameters).openConnection();
                reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                String result = reader.readLine();
                if (result.equals("success"))
                  sender.sendMessage("You have been registered successfully!");
                else if (result.contains("fail: "))
                  sender.sendMessage("Failed to register: " + result.replaceFirst("fail: ", ""));
                else sender.sendMessage("An unknown error has happened. Error: " + result);
              }
              catch (IOException e) {
                this.plugin.log.info("Failed to open connection to the given URL: " + this.plugin.getURL());
                sender.sendMessage("The registration has failed. Please try again later.");
              } finally {
                try {
                  reader.close();
                } catch (IOException e) {
                  this.plugin.log.info("Failed to close a URL reader: " + e);
                }
              }
            } else {
              sender.sendMessage(ChatColor.RED +  "Your password(s) has to be 2 or more and 16 or less characters. Passwords must match.");
            }
          } else sender.sendMessage("The first parameter doesn't seem to be a valid e-mail address.");
        }
        else return false;
      }
      else sender.sendMessage(ChatColor.RED + "You don't have permission to do this.");
    }
    else sender.sendMessage(ChatColor.RED + "This command can be used only by players.");
    return true;
  }
}