package Modules;

import Controll.GuildController;
import Controll.SuperModule;
import IO.JSON;
import net.dv8tion.jda.api.EmbedBuilder;
import net.dv8tion.jda.api.events.GenericEvent;
import net.dv8tion.jda.api.events.message.guild.GuildMessageReceivedEvent;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;

public class Quote extends SuperModule{

    private final Logger logger = LoggerFactory.getLogger(Quote.class);
    public static final String command = "quote";
    static final String QUOTE_LOCATION = "Quotes.json";

    public Quote(GuildController guildController){
        super(command, guildController);

        if(JSON.loadJson(QUOTE_LOCATION) == null){
            JSON.saveJson(new JSONArray(), QUOTE_LOCATION);
        }
    }

    @Override
    public String getCommand() {
        return command;
    }

    @Override
    public String getDescription() {
        return "`quote` shows random quote\n`quote id #NUMBER` show specific quote\n`quote new QUOTE - AUTHOR` adds new quote to the system";
    }

    @Override
    public void execute(GenericEvent event) {

        if (event instanceof GuildMessageReceivedEvent) {

            GuildMessageReceivedEvent thisEvent = (GuildMessageReceivedEvent) event;

            if (!isCommand(thisEvent.getMessage()))
                return;

            logger.debug(command + "triggered");

            ///////////////////
            // ADD NEW QUOTE
            ///////////////////
            if (thisEvent.getMessage().getContentRaw().matches("(?is:" + getGuildController().getPREFIX() + command + " (new|add) .*)")) {
                logger.debug("safe new Quote");

                // Prep new Quote Object
                JSONObject newQuote = new JSONObject();
                newQuote.put("text", thisEvent.getMessage().getContentRaw()
                        .replaceAll("(?is:" + getGuildController().getPREFIX() + command + " (new|add) )", "")
                        .replaceAll("(?is:-.*$)",""));
                newQuote.put("date", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
                if (thisEvent.getMessage().getContentRaw().contains("-"))
                    newQuote.put("author", thisEvent.getMessage().getContentRaw().replaceAll("(?is:[^-]*- )", ""));


                JSONArray arr = JSON.loadJson(QUOTE_LOCATION);
                boolean exists = false;

                // go through all Guilds
                for (Object o: arr){

                    //Filter for the right guild
                    JSONObject guilds = (JSONObject) o;
                    if (guilds.get("guildID").equals(getGuildController().getGUILD_ID())){

                        arr.remove(o); // Remove old object
                        JSONArray guildQuotes = (JSONArray) guilds.get("quotes"); // get old Quotes

                        guildQuotes.add(newQuote); // add new Quote

                        JSONObject editedGuild = new JSONObject(); // safe guild
                        editedGuild.put("guildID", getGuildController().getGUILD_ID());
                        editedGuild.put("quotes", guildQuotes);
                        arr.add(editedGuild);

                        exists = true; // set flag
                        break;
                    }
                }

                if (!exists){ // if flag not set create new Guild
                    JSONObject newGuild = new JSONObject();
                    newGuild.put("guildID", getGuildController().getGUILD_ID());

                    JSONArray newQuotes = new JSONArray();
                    newQuotes.add(newQuote);

                    newGuild.put("quotes", newQuotes);
                    arr.add(newGuild);
                }

                // Safe data
                JSON.saveJson(arr, QUOTE_LOCATION);


                thisEvent.getMessage().delete().queue();

                ///////////////////
                // PICK QUOTE BY ID
                ///////////////////
            } else if (thisEvent.getMessage().getContentRaw().matches("(?is:" + getGuildController().getPREFIX() + command + " id #[0-9]+.*)")){
                logger.debug("pick Quote by ID");

                //STUB

                ///////////////////
                // RandomPick
                ///////////////////
            }  else {
                logger.debug("random quote pick");

                JSONArray arr = JSON.loadJson(QUOTE_LOCATION);

                for (Object o : arr){
                    JSONObject guild = (JSONObject) o;

                    if (guild.get("guildID").equals(getGuildController().getGUILD_ID())){

                        JSONArray quotes = (JSONArray) guild.get("quotes");

                        JSONObject quote = null;
                        int i = 0;
                        // Get Random Quote Object
                        do {
                            quote = (JSONObject) quotes.get(new Random().nextInt(quotes.size()));
                            i++;

                            if (i > quotes.size())
                                return;
                        } while (quote == null);

                        // Build message
                        EmbedBuilder eb = new EmbedBuilder();

                        // get text
                        eb.setDescription(quote.get("text").toString());

                        // get Date
                        try {
                            eb.setTimestamp(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(quote.get("date").toString()).toInstant());
                        } catch (ParseException e){
                            logger.error(e.toString());
                        }

                        //get Author if exists
                        if (quote.containsKey("author")){
                            eb.setAuthor(quote.get("author").toString());
                        }

                        thisEvent.getChannel().sendMessage(eb.build()).queue();
                        break;
                    }
                }
            }
            //Delete command
            thisEvent.getMessage().delete().queue();
        }
    }

    @Override
    public String showSettings() {
        JSONArray arr = JSON.loadJson(QUOTE_LOCATION);
        for (Object o : arr) {
            JSONObject guild = (JSONObject) o;

            if (guild.get("guildID").equals(getGuildController().getGUILD_ID())) {
                return "NUMBER OF QUOTES: `" + ((JSONArray) guild.get("quotes")).size() + "`";
            }
        }
        return "NUMBER OF QUOTES: `0`";
    }
}