#-----------------------------------------------------------------------------
# Name:        Assertations practice  (main.py)
# Purpose:     Showing an understanding of topics learned in class
# Author:      620988
# Created:     24-Oct-19
# Updated:     11-Dec-19
#-----------------------------------------------------------------------------
import logging
logging.basicConfig(filename='log.txt', level=logging.DEBUG, format=' %(asctime)s - %(levelname)s - %(message)s')
#functions
def oneRepMax(reps,weight):
  '''
  This function is a formula to calculate one rep max

  This function will ask user to submit their reps done and weight done to find how
  much weight they can do for 1 rep

  Parameters
  ----------
  reps done and weight done

  Returns
  -------
  float
  the value of the 1rm
  '''
  if not weight > 0  or not reps > 0:
    return ' "Soryy, could not find 1rm due to invalid number."'
  max = weight*(1+reps/30)
  return max

assert oneRepMax(9, 200) == 260, 'Expecting someone who lifts 200 for 9 to have a 1rm of 260'
#assert isinstance(max, string), 'Expecting a float'

def bodyMassIndex(height,weight):
  '''
  This function is a formula to calculate one's BMI

  This function will ask user to submit weight and heigh. Using the weight and height a formula is done

  Parameters
  ----------
  weight and height

  Returns
  -------
  floats
  the value of bmi
  '''
  if not isinstance(height, (int, float)):
    raise TypeError('onerepmax expecting an int or float as input')
  if not isinstance(weight, (int, float)):
    raise TypeError('onerepmax expecting an int or float as input')
  if weight < 0  or height < 0:
    raise ValueError('Values too low for expected range ')
    # return ' "Sorry, could not find BMI due to invalid number."'
  bmi = 703*weight/(height**2)
  return bmi
#lists that are used when inVar = 3 and 4
assert bodyMassIndex(50, 100) == 28.12, 'Expecting someone who lifts 200 for 9 to have a 1rm of 260'
#assert isinstance(bmi, float), 'Expecting a float'

def menu():
  '''
  This function is a menu of options

  This function will print out a list of options
  available for the user

  Parameters
  ----------
  None

  Returns
  -------
  None
  '''
  print('''
  What do you want to do?(type integer)

  1) Calculate 1 rep max
  2) Calculate BMI
  3) Log daily calorie and mood summary
  4) View past logs
  5) Exit app
  6)
  ''')
  return
  assert isinstance(menu, string), 'Expecting a string'

dailySummary = []
dailyCals =[]





print ("Welcome to Johann's health app, with this app, athletes can use it to keep track of all aspects of their health so they can adjust their lifestyles.")

#if username is a number it is invalid
while True:

  username= str(input("Enter your username" ))
  logging.debug('the username is ' + username)
  if username.isdigit():#if statemnt
    print("invalid username, retry")
  else:
    print("Welcome back {}".format(username))
    break
#while loop
while True:
  try:  #menu
    inVar = int(input(menu))
  except: #using the try and except (extension)
    print("invalid option try again")
    continue

  if inVar == 1:
    while True:
      try:
        repsDone= int(input("How many reps did you do"))
        weightDone= int(input("What was the weight used during this activity"))
        break
      except:
        print("invalid input, retry")

    print("Your one rep max is "+ str(oneRepMax(repsDone,weightDone)))

  elif inVar == 2:
    while True:
      try:
        weightOfUser= float(input("How much do you weigh in pounds"))
        heightOfUser= float(input("What is your height in inches"))
        break
      except:
        print("invalid input, retry")
    try:
      print("Your bmi is "+ str(bodyMassIndex(heightOfUser,weightOfUser)))
    except :
      print("invalid input, retry")

  elif inVar == 3:
    while True:
      dailySummaryEmotion = str(input("Talk about your overall daily mood: "))
      dailySummary.append(dailySummaryEmotion)
      while True:
        try:
          dailySummaryCalories = int(input("Enter your daily calorie intake as a number: "))
        except:
          print("You must enter a number")
          continue
        if dailySummaryCalories < 0:
          print("Calories must be positive!")
          continue
        break
      dailyCals.append(dailySummaryCalories)#add onto list



      areYouSure= input("\nYou have entered entered your daily summary. Double check to see if the summary are correct. )\n Mood summary: " + dailySummary[-1] +  "\n Today's calorie intake: " + str(dailyCals[-1]) + "\n Enter the letter 'a' if you are confident that your summry is correct, otherwise, enter any other characters")
      if areYouSure == "a":
        print("You are finished your daily summary, you must wait until tommorow to input your next daily summary.")
        break
      else:
        print("Sending you back to redo")
        del dailySummary[-1]
        del dailyCals[-1]
  elif inVar == 4:
    viewPastSummary = input("You have selected to view your histories. You can either look at a past date or print out your whole entire summary log. Enter 1 to print out your entire history or Enter 2 to check a specific date ")

    if viewPastSummary == "1":
      if len(dailySummary) > 0:
       for i in range(len(dailySummary)-1,-1,-1):
         dailySummary[i] = "Here is your mood summary on day " + str(i+1) + " :" + str(dailySummary[i])
         print(dailySummary[i])
       for i in range(len(dailyCals)-1,-1,-1):
         dailyCals[i] = "Here is your calorie summary on day " + str(i+1) + " :" + str(dailyCals[i])
         print(dailyCals[i])
      else:
        print("You have yet to input anything")


    elif viewPastSummary == "2":

      print("These are the days you can look at, with 1 being your first log. If none are showing up, you havent put anything in your summaries")
      while True:
        if len(dailySummary)>0:
          i = 0
          while i < len(dailyCals):
            print(i+1)
          while True:
            pastDate = int(input("Enter day to look at."))
            pastDate = pastDate- 1 # convert to zero index
            if pastDate < 0 or pastDate >= len(dailyCals):
              print("You have no submission for this date")
              continue
            else:
              print("Here is your mood summary for that day: " + str(dailySummary[pastDate]))
              print("Here is your daily calories for that day: " + str(dailyCals[pastDate]))
            break
          break

        else:
          print("\nYou have yet to enter any data, start by doing your summary")

    else:
      print("\nenter either 1 or 2, nothing else... sending you back to the menu")

  elif inVar == 5:
    print("thank you for using the app, until next time " + username)
    break

  elif inVar == 6:
    dailyCals.sort()

    while  g < len(dailyCals):
      g = g+1
      print(dailyCals[g])
      print(g+"st lowest")
      print()