from data import data_api
import json
import os

def calc_mmr_change(systemname, winner_id, looser_id, winner_points, looser_points, match_is_draw):
    gamesystem_id = data_api.get_gamesystem_id_by_name(systemname)
    winner_rank = data_api.get_player_rank(winner_id,gamesystem_id)
    looser_rank = data_api.get_player_rank(looser_id, gamesystem_id)

    rules = load_mmr_rule_matrix(systemname)
    
    if match_is_draw:
        mmr_change = rules["rank_matrix"][str(winner_rank-looser_rank)]["draw"]

    else:
        mmr_change = rules["rank_matrix"][str(winner_rank-looser_rank)]["win"]




def load_mmr_rule_matrix(systemname):
    safe_name = systemname.replace(" ", "_").lower()

    file_path = f"mmr_calculations/mmr_rules_{safe_name}.json"
    with open(file_path, "r", encoding="utf-8") as file:
        rules = json.load(file)

    return rules