/*
 *   This file is a part of the SteamWar software.
 *
 *   Copyright (C) 2024 SteamWar.de-Serverteam
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Affero General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU Affero General Public License for more details.
 *
 *   You should have received a copy of the GNU Affero General Public License
 *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package de.steamwar.sql

import de.steamwar.sql.internal.Statement
import de.steamwar.sql.internal.Statement.ResultSetUser

private val getNum: ResultSetUser<Int?> = ResultSetUser { res ->
    if (res.next()) {
        res.getInt("num")
    } else {
        null
    }
}

private val eventFightParticipation = Statement("SELECT FightPlayer.UserID, COUNT(UserID) as num FROM FightPlayer INNER JOIN Fight on FightPlayer.FightID = Fight.FightID WHERE Fight.Server LIKE '%vs%' AND FightPlayer.UserID = ? GROUP BY FightPlayer.UserID")

fun getEventFightParticipation(user: SteamwarUser): Int? = eventFightParticipation.select(getNum, user.id)

private val eventParticipation = Statement("SELECT FightPlayer.UserID, COUNT(DISTINCT EventID) as num FROM FightPlayer INNER JOIN core.Fight F on FightPlayer.FightID = F.FightID INNER JOIN core.EventFight EF on F.FightID = EF.Fight WHERE F.FightID = FightPlayer.FightID AND FightPlayer.FightID = EF.Fight AND F.Server LIKE '%vs%' AND FightPlayer.UserID = ? GROUP BY FightPlayer.UserID")

fun getEventParticipation(user: SteamwarUser): Int? = eventParticipation.select(getNum, user.id)

private val acceptedSchematics = Statement("SELECT NodeOwner, COUNT(DISTINCT NodeId) AS num FROM SchematicNode WHERE NodeType != 'normal' AND NodeType IS NOT NULL AND NodeType NOT LIKE 'c%' AND NodeOwner = ?")

fun getAcceptedSchematics(user: SteamwarUser): Int? = acceptedSchematics.select(getNum, user.id)

private val fightCount = Statement("SELECT COUNT(*) AS num FROM FightPlayer WHERE UserID = ?")

fun getFightCount(user: SteamwarUser): Int? = fightCount.select(getNum, user.id)

private val rankedList = Statement("SELECT UserName, Elo FROM UserData, UserElo WHERE UserID = id AND GameMode = ? AND Season = ? ORDER BY Elo DESC")

fun getRankedList(gamemode: String): List<Pair<String, Int>> = rankedList.select({ res ->
    val list = mutableListOf<Pair<String, Int>>()
    while (res.next()) {
        list.add(res.getString("UserName") to res.getInt("Elo"))
    }
    list
}, gamemode, Season.getSeason())

private val fightList = Statement("SELECT DATE(StartTime) AS Datum, GameMode AS Modus, COUNT(*) AS Anzahl FROM Fight WHERE DATE(StartTime) >= DATE(NOW()) - INTERVAL 1 WEEK GROUP BY Datum, GameMode ORDER BY Datum ASC")

fun getFightList(): List<Triple<String, String, Int>> = fightList.select({ res ->
    val list = mutableListOf<Triple<String, String, Int>>()
    while (res.next()) {
        list.add(Triple(res.getString("Datum"), res.getString("Modus"), res.getInt("Anzahl")))
    }
    list
})