package me.despawningbone.discordbot.command.admin;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Arrays;

import org.apache.commons.lang3.exception.ExceptionUtils;

import me.despawningbone.discordbot.DiscordBot;
import me.despawningbone.discordbot.command.Command;
import me.despawningbone.discordbot.command.CommandResult;
import me.despawningbone.discordbot.command.CommandResult.CommandResultType;
import net.dv8tion.jda.api.entities.Member;
import net.dv8tion.jda.api.entities.Message;
import net.dv8tion.jda.api.entities.TextChannel;
import net.dv8tion.jda.api.entities.User;

public class BotUnban extends Command {
	public BotUnban() {
		this.alias = Arrays.asList("bunban");
		this.desc = "Unban a user from the bot";
		this.usage = "<userID>";
		this.botUserLevel = BotUserLevel.BOT_MOD.ordinal();
		this.examples = Arrays.asList(DiscordBot.OwnerID);
	}

	@Override   //DONE rewrite BotBan/BotUnban to use SQLite
	public CommandResult execute(TextChannel channel, User author, Message msg, String[] args) {
		if (args.length < 1) {
			return new CommandResult(CommandResultType.INVALIDARGS, "Please enter a user ID.");
		} else {
			//boolean unbanned = false;
			String SID = args[0];
			Member t = channel.getGuild().getMemberById(SID);
			if (t != null) {
				try (Connection con = DiscordBot.db.getConnection(); Statement s = con.createStatement()) {
					String reports = "";
					ResultSet uRs = s.executeQuery("SELECT reports FROM users WHERE id = " + SID + ";");
					if(uRs.next()) {
						reports = uRs.getString(1);
						if(reports.split("\n").length >= 5) {
							//can actually just UPDATE since it must have an entry 
							PreparedStatement set = con.prepareStatement("INSERT INTO users(id, reports) VALUES (?, \"\") ON CONFLICT(id) DO UPDATE SET reports = \"\"");
							set.setString(1, SID);
							if(set.executeUpdate() != 0) {
								channel.sendMessage("You unbanned <@!" + SID + ">.").queue();
								return new CommandResult(CommandResultType.SUCCESS);							
							}
						}
					}
					return new CommandResult(CommandResultType.FAILURE, "This user is not banned.");
				} catch (SQLException e) {
					return new CommandResult(CommandResultType.ERROR, ExceptionUtils.getStackTrace(e));
				}
				/*for (int i = 0; i < DiscordBot.BannedID.size(); i++) {
					if (DiscordBot.BannedID.get(i).equals(SID)) {
						unbanned = true;
						DiscordBot.BannedID.remove(i);
						break;
					}
				}
				if (unbanned == true) {
					for (int i = 0; i < DiscordBot.playerreportlist.size(); i++) {
						if (DiscordBot.playerreportlist.get(i).startsWith(SID)) {
							DiscordBot.playerreportlist.remove(i);
							break;
						}
					}
					Path fp = Paths.get(System.getProperty("user.dir"), "PlayerReports.txt");
					try {
						List<String> fileContent = new ArrayList<>(Files.readAllLines(fp, StandardCharsets.UTF_8));
						for (int f = 0; f < fileContent.size(); f++) {
							if (fileContent.get(f).startsWith(SID)) {
								fileContent.remove(f);
								break;
							}
						}
						Files.write(fp, fileContent, StandardCharsets.UTF_8);
					} catch (IOException e) {
						e.printStackTrace();
					}
				}
				if (unbanned == true) {
					channel.sendMessage("You unbanned <@!" + SID + ">.").queue();
					String name = channel.getGuild().getMemberById(SID).getEffectiveName();
					return new CommandResult(CommandResultType.SUCCESS, "User: " + name);
				}
				return new CommandResult(CommandResultType.FAILURE, "This user is not banned.");*/
			} else {
				return new CommandResult(CommandResultType.FAILURE, "This user ID is invalid.");
			}
		}
	}
}