# -*- coding: utf-8 -*-
"""
Created on Fri Apr 23 08:31:24 2021

@author: shawn
"""

import re
import sys



#%% Validation

regex = re.compile('^(\d*|[MXY])\t(\d*)\t(\w*)\t(\w*)\t([\d.]*)\t([\d.]*)\t(\w)\t(.*)$')

file = open(sys.argv[1])
file.readline()

linenum = 1
for line in file:
    line = line.rstrip()
    linenum += 1
    m = regex.match(line)
    if not m:
        print('line:%d is invalid,'%linenum, line.rstrip(), sep='\n')
        sys.exit(1)
    arr = line.split('\t')
    if len(arr) == 8:
        chr, pos, ref, alt, score, std, pred, comment = arr
    else:
        assert(0)
        
        
    try:
        score = float(score)
    except:
        print('line:%d is invalid,'%linenum, line.rstrip(), sep='\n')
        print('score value "%s" is invalid float format' % score)
        sys.exit(1)
    
    if not ( score >= 0 and score <= 1):
        print('line:%d is invalid,'%linenum, line.rstrip(), sep='\n')
        print('score value "%f" is not in the correct range' % score)
        sys.exit(1)
    
    try:
        std = float(std)
    except:
        print('line:%d is invalid,'%linenum, line.rstrip(), sep='\n')
        print('standard deviation value "%s" is invalid float format' % std)
        sys.exit(1)
    
    if not ( std >= 0 ):
        print('line:%d is invalid,'%linenum, line.rstrip(), sep='\n')
        print('standard deviation value "%f" is invalid. the value should be positive' % std)
        sys.exit(1)
        
    if not ( pred in "DTU" ):
        print('line:%d is invalid,'%linenum, line.rstrip(), sep='\n')
        print('pred "%s" is invalid' % pred)
        sys.exit(1)
        

print('The file\'s format is valid! You are good to submit now!')