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package com.juick.server;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

/**
 *
 * @author ugnich
 */
public class SubscriptionsQueries {

    public static ArrayList<String> getJIDSubscribedToUser(Connection sql, int uid, boolean friendsonly) {
        ArrayList<String> jids = new ArrayList<String>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (friendsonly == false) {
                stmt = sql.prepareStatement("SELECT jids.jid FROM subscr_users INNER JOIN jids ON (subscr_users.user_id=? AND subscr_users.suser_id=jids.user_id) WHERE jids.active=1");
                stmt.setInt(1, uid);
            } else {
                stmt = sql.prepareStatement("SELECT jids.jid FROM subscr_users INNER JOIN jids ON (subscr_users.user_id=? AND subscr_users.suser_id=jids.user_id) WHERE jids.active=1 AND jids.user_id IN (SELECT wl_user_id FROM wl_users WHERE user_id=?)");
                stmt.setInt(1, uid);
                stmt.setInt(2, uid);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                jids.add(rs.getString(1));
            }
        } catch (SQLException e) {
            System.err.println(e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return jids;
    }

    public static ArrayList<String> getJIDSubscribedToUserAndTags(Connection sql, int uid, int mid) {
        ArrayList<String> jids = new ArrayList<String>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT DISTINCT jid FROM jids WHERE active=1 AND user_id!=? AND user_id IN (SELECT suser_id FROM subscr_users WHERE user_id=? UNION SELECT suser_id FROM subscr_tags INNER JOIN messages_tags ON (messages_tags.message_id=? AND subscr_tags.tag_id=messages_tags.tag_id))");
            stmt.setInt(1, uid);
            stmt.setInt(2, uid);
            stmt.setInt(3, mid);
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                jids.add(rs.getString(1));
            }
        } catch (SQLException e) {
            System.err.println(e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return jids;
    }

    public static ArrayList<String> getJIDSubscribedToComments(Connection sql, int mid, int ignore_uid) {
        ArrayList<String> jids = new ArrayList<String>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT jids.jid FROM subscr_messages INNER JOIN jids ON (subscr_messages.message_id=? AND subscr_messages.suser_id=jids.user_id) WHERE jids.user_id!=? AND jids.active=1");
            stmt.setInt(1, mid);
            stmt.setInt(2, ignore_uid);
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                jids.add(rs.getString(1));
            }
        } catch (SQLException e) {
            System.err.println(e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return jids;
    }
}