package de.jeyp91.tippliga;

import de.jeyp91.tippligaforum.TippligaSQLConnector;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Date;

import static de.jeyp91.googlecalendar.TippligaGoogleEventManager.*;

public class TLWMatchdaysUpdater {

    private final Logger logger = LogManager.getLogger(TLWMatch.class);

    int season;
    int league;
    ArrayList<TLWMatchday> matchdaysOriginal;
    ArrayList<TLWMatchday> matchdaysUpdated;
    String beautifulInfo = "";

    public TLWMatchdaysUpdater(int season, int league, String configPath) {
        this.season = season;
        this.league = league;

        TippligaSQLConnector conn = TippligaSQLConnector.getInstance();
        this.matchdaysOriginal = conn.getMatchdays(String.valueOf(season), String.valueOf(league));
        this.matchdaysOriginal.sort(Comparator.comparing(TLWMatchday::getMatchday));

        this.matchdaysUpdated = conn.getUpdatedMatchdaysBasedOnMatches(String.valueOf(season), String.valueOf(league));
        this.matchdaysUpdated.sort(Comparator.comparing(TLWMatchday::getMatchday));
    }

    public String getUpdateSql() {
        String updateSql = "";

        if(this.matchdaysUpdated.size() != this.matchdaysOriginal.size()) {
            this.logger.error("Wrong matchdays config!");
        } else {

            for (int i = 0; i < this.matchdaysUpdated.size(); i++) {
                TLWMatchday matchdayOriginal = this.matchdaysOriginal.get(i);
                TLWMatchday matchdayUpdated = this.matchdaysUpdated.get(i);

                if (matchdayOriginal.getMatchday() != matchdayUpdated.getMatchday()) {
                    this.logger.error("BUUUUG!");
                } else {

                    Date now = new Date(System.currentTimeMillis());

                    Date earliestDate = null;
                    try {
                        earliestDate = new SimpleDateFormat("yyyy-MM-dd").parse(matchdayUpdated.getDeliveryDate().substring(0, 10));
                    } catch (java.text.ParseException e) {
                        e.printStackTrace();
                    }

                    if (earliestDate.after(now)) {

                        String updateStart = "UPDATE phpbb_footb_matchdays SET ";
                        String condition = "WHERE season = " + matchdayOriginal.getSeason() + " " +
                                "AND league = " + matchdayOriginal.getLeague() + " " +
                                "AND matchday = " + matchdayOriginal.getMatchday() + ";\n";
                        String beautifulInfoStart = "Aktualisiere Saison " + matchdayOriginal.getSeason() + ", " +
                                "Liga " + matchdayOriginal.getLeague() + ", " +
                                "Spieltag " + matchdayOriginal.getMatchday() + ", ";

                        if (!matchdayOriginal.getDeliveryDate().equals(matchdayUpdated.getDeliveryDate())) {
                            updateSql += updateStart +
                                    "delivery_date = '" + matchdayUpdated.getDeliveryDate() + "' " +
                                    condition;
                            this.beautifulInfo += beautifulInfoStart +
                                    "Tippabgabeschluss 1 zu '" + matchdayUpdated.getDeliveryDate() + "'.\n";
                        }

                        if (!matchdayOriginal.getDeliveryDate2().equals(matchdayUpdated.getDeliveryDate2())) {
                            updateSql += updateStart +
                                    "delivery_date_2 = '" + matchdayUpdated.getDeliveryDate2() + "' " +
                                    condition;
                            this.beautifulInfo += beautifulInfoStart +
                                    "Tippabgabeschluss 2 zu '" + matchdayUpdated.getDeliveryDate2() + "'.\n";
                        }

                        if (!matchdayOriginal.getDeliveryDate3().equals(matchdayUpdated.getDeliveryDate3())) {
                            updateSql += updateStart +
                                    "delivery_date_3 = '" + matchdayUpdated.getDeliveryDate3() + "' " +
                                    condition;
                            this.beautifulInfo += beautifulInfoStart +
                                    "Tippabgabeschluss 3 zu '" + matchdayUpdated.getDeliveryDate3() + "'.\n";
                        }

                        if (!matchdayOriginal.getMatchdayName().equals(matchdayUpdated.getMatchdayName())) {
                            updateSql += updateStart +
                                    "matchday_name = '" + matchdayUpdated.getMatchdayName() + "' " +
                                    condition;
                            this.beautifulInfo += beautifulInfoStart +
                                    "Spieltagsname zu '" + matchdayUpdated.getMatchdayName() + "'.\n";
                        }
                    }
                }
            }
        }
        return updateSql;
    }

    public void updateGoogleCalendar() {
        updateAllMatchdays(matchdaysUpdated);
    }

    public String getBeautifulInfo() {
        return this.beautifulInfo;
    }
}