import os
import sys
import json
import itertools

from param_list import *

def getlabel(sub_list_element, level):
    label=""
    for l in range(level):
        label = label+sub_list_element[l]+"_"
    return label

def MySort(sub_list, level):
    l=len(sub_list)
    for i in range(0,l):
        for j in range(0, l-i-1):
            if(getlabel(sub_list[j], level) > getlabel(sub_list[j+1], level)):
                tempo = sub_list[j]
                sub_list[j]= sub_list[j+1] 
                sub_list[j+1]= tempo 
    return sub_list

def main() :
      
    param_length = len(param_list)
    param = [""]*param_length
    
    
    f=open("user_param.json", 'r')
    config_dict = json.load(f)
    f.close()
    
    f=open("default_param.json", 'r')
    def_config = json.load(f)
    f.close()
        
    default_config=[""]*param_length
    f=open("default_param.py", "w")
    for i in range(param_length):
        default_config[i] = str(def_config[0][param_list[i]])
        f.write(param_list[i]+" = "+str(def_config[0][param_list[i]])+"\n")
    f.close()
        
    config_list=[]
    
    for config_set in config_dict:
        sub_list=[]
        for l in range(param_length):
            if param_list[l] in config_set:
                param[l]=config_set[param_list[l]].split(" ")
                for i in range(len(param[l])) :
                    param[l][i] = [str(param[l][i])]
            else :
                param[l]=['_']
        
        for l in range(len(param_list)):
            if not sub_list:
                sub_list = list(param[l])
            else:
                tmp_sub_list = list(itertools.product(sub_list,list(param[l])))
                sub_list=[]
                for i in range(len(tmp_sub_list)):
                    sub_list.append(list(tmp_sub_list[i]))
                for i in range(len(sub_list)):
                    sub_list[i] = list(itertools.chain(*sub_list[i]))
                
        for i in range(len(sub_list)):    
            config_list.append(sub_list[i])
            
            
        param=[""]*param_length
        
    config_list=MySort(config_list, param_length)
    
    
    for i in range(len(config_list)):
        print(config_list[i])
        
        
    full_config_list=[[]]*len(config_list)
    
    for i in range(len(config_list)):
        full_config_list[i] = list(config_list[i])
        for j in range(param_length):
            if full_config_list[i][j]=='_':
                full_config_list[i][j] = default_config[j]
        # print(full_config_list[i])
        
    for i in range(len(config_list)):
        f=open("user_param.py."+repr(i), "w")
        for j in range(param_length):
            if not config_list[i][j] == "_":
                f.write(param_list[j]+" = "+config_list[i][j]+"\n")
        f.close()
    
    f=open("CMakeLists.txt", "w")
    f.write("##############################\n")
    f.write("# file generated by setup.py #\n")
    f.write("#      DO NOT modify         #\n")
    f.write("##############################\n\n")
    f.write("cmake_minimum_required(VERSION 2.8.12.2)\n\n")
    f.write("project(generic_testcase)\n\n")
    f.write("find_package(PythonInterp REQUIRED)\n\n")
    f.write("enable_testing()\n\n")
    dirpath = os.getcwd()
    foldername = os.path.basename(os.getcwd())
    print(foldername)
    
    for x in range(len(config_list)):
    	f.write("add_test( NAME "+foldername+"_config"+repr(x)+'\n')
        f.write("          COMMAND ${PYTHON_EXECUTABLE}\n")
        f.write("          ${CMAKE_CURRENT_BINARY_DIR}/run_test_"+repr(x)+".py\n")
        f.write("          "+foldername+"_config"+repr(x)+")\n\n")
        f.write("set_tests_properties("+foldername+"_config"+repr(x)+" PROPERTIES\n")
        f.write("                      FAIL_REGULAR_EXPRESSION \"check.py failed;execution failed;failed;setup.sh failed; machine unknown\")\n\n")

        g=open("run_test_"+repr(x)+".py", "w")
        g.write("##############################\n")
        g.write("# file generated by setup.py #\n")
        g.write("#      DO NOT modify         #\n")
        g.write("##############################\n\n")
        g.write("import os\n")
        g.write("import sys\n")
        g.write("import subprocess\n")
		

        g.write("\ndef main():\n")
        g.write("	os.system(\'rm -f user_param.py\')\n")
        g.write("	os.system(\'cp user_param.py."+repr(x)+" user_param.py\')\n")
        g.write("	os.system(\'./run_sub_test.sh\')\n")
        g.write("if __name__== \"__main__\":\n")
        g.write("	main()\n")
        g.close()
		 
    f.close()

if __name__== "__main__":
  main()