import csv
import matplotlib.pyplot as plt
from scipy import stats
import pandas as pd
import argparse

def plot(l,filename):
    lenth = len(l)
    threshold = [0, 10000, 20000, 30000, 40000, 50000, 60000, 70000]
    labels = ['0-10k', '10k-20k,', '20k-30k', '30k-40k', '40k-50k', '50k-60k', '60k-70k']
    l = [i/15625 for i in l]
    l = l[:7]
    datasets = filename.split('_')[-1].split('.')[0]
    plt.figure(figsize=(8, 6))
    plt.subplots_adjust(top=0.85)
    plt.ylim(0,0.3)
    plt.title('Distribution of Swap Scores in ' + datasets)
    plt.bar(labels, l)
    for i, v in enumerate(l):
        plt.text(i, v + 0.01, str(round(v, 2)), ha='center', va='bottom')
    plt.savefig(filename)

def analyse(filename):
    l = [0 for i in range(10)]
    scores = []
    count = 0
    best_value = -1
    with open(filename) as file:
        reader = csv.reader(file)
        header = next(reader)
        data = [row for row in reader]
        
        for row in data:
            score = row[0]
            best_value = max(best_value, float(score))
            # print(score)
            ind = float(score) // 10000
            ind = int(ind)
            l[ind] += 1
            acc = row[1]
            index = row[2]
            datas = list(zip(score, acc, index))
            scores.append(score)
    print(max(scores))
    results = pd.DataFrame(datas, columns=['swap_score', 'valid_acc', 'index'])
    print(results['swap_score'].max())
    print(best_value)
    plot(l, filename + '.png')
    return stats.spearmanr(results.swap_score, results.valid_acc)[0]

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('--filename', type=str, help='Filename to analyze', default='swap_results.csv')

    args = parser.parse_args()

    print(analyse('output' + '/' + args.filename))