from data import data_api
from match_calculations import calc_mmr_change
import json
import os
from wood import logger

# Mach die DB abfrage für die Relevanten Daten. Von hier aus werden die "Aufgaben" und Daten dann an die kleineren Berechnungs Funktionen verteilt.
def calculate_match (match_id):
    match_data = data_api.get_match_by_id(match_id)
    
    if not match_data:
        print("Fehler: Match nicht gefunden!")
        return

    data_api.confirm_match(match_id)
    
    # Laden und umsetzen der Match Daten
    p1_id = match_data['player1_id']
    p2_id = match_data['player2_id']
    p1_score = match_data['score_player1']
    p2_score = match_data['score_player2']
    sys_name = match_data['gamesystem_name']
    sys_id = match_data['gamesystem_id']

    calculated = False
    winner_id = None
    looser_id = None
    match_is_draw = False
    winner_score = 0
    looser_score = 0

    draw_diff = determine_draw_diff(sys_id)

    # Abgrenzen ob das Match schon berechnet wurde. Weil ein Draw kann 4 Punkte unterschied haben 
    # 43-41 ist ein Draw aber rein Mathematisch würde es auch ein anderes if triggern
    # Abgrenzen, wer gewonnen hat (if, elif, else Kette)

    # 1. Ist es ein Unentschieden (Draw)?
    if -draw_diff <= (p1_score - p2_score) <= draw_diff:
        match_is_draw = True
        winner_id = p1_id # Bei Draw ist egal, wer wo steht
        looser_id = p2_id
        winner_score = p1_score
        looser_score = p2_score

    # 2. Wenn KEIN Draw: Hat Spieler 1 gewonnen?
    elif p1_score > p2_score:
        match_is_draw = False
        winner_id = p1_id
        looser_id = p2_id
        winner_score = p1_score
        looser_score = p2_score

    # 3. Wenn weder Draw noch P1 Sieg, MUSS P2 gewonnen haben!
    else:
        match_is_draw = False
        winner_id = p2_id
        looser_id = p1_id
        winner_score = p2_score
        looser_score = p1_score

    mmr_change_winner, mmr_change_looser = calc_mmr_change.calc_mmr_change(sys_name, winner_id, looser_id, winner_score, looser_score, match_is_draw)
    data_api.apply_match_to_player_statistic (winner_id, sys_id, mmr_change_winner, winner_score)
    data_api.apply_match_to_player_statistic (looser_id, sys_id, mmr_change_looser, looser_score)

    # Zuordnen: Welcher Change gehört zu P1 und welcher zu P2?
    if winner_id == p1_id:
        p1_change = mmr_change_winner
        p2_change = mmr_change_looser
    else:
        # Wenn der Sieger nicht P1 ist, muss P1 der Verlierer sein (oder Draw, da ist es egal)
        p1_change = mmr_change_looser
        p2_change = mmr_change_winner

    # Die Änderungen für das Log ins Match eintragen!
    data_api.update_match_mmr_change(match_id, p1_change, p2_change)

    # Das Match als Berechnet markieren
    data_api.set_match_counted(match_id)


def determine_draw_diff(sys_id):
    draw_diff = 0
    match sys_id:
        case 1:
            draw_diff = 3
        case 2,3:
            draw_diff = 1
            
    return draw_diff