''' Purpose: capture review coding
'''
import url

'''TOPICS'''
# random.seed() function
    # The random library allows us to use functions from the random library to
    # generate random values / choose random values from sequences

import random
random.seed() # No argument -> Reset Python number generator to current time in producing the next value
# random.seed( s ) takes in the argument seed s which will influence the output of our program.

# random.seed( 1112 ) # reset the random number generator to use 1112 as the influencer to produce random output
random.seed() # resets seed each time to the current time
# IMPORTANT: As long as this seed is set, the random output will be the SAME each time.
x = [ 1,2,'abc',3.14,[5,6] ] # There are 5 things in this list (2 numbers, 1 string, 1 float, 1 list)
# random.choice( sequence ) chooses a random value from the sequence!
r1 = random.choice( x )  # choose a random value from the list x!
print( r1 ) # The random output is always going to be the same for a certain seed (1112)

# IMPORTANT: Since the seed was 1112, we produced the same random output ('abc') each time
# for that given seed.
# random.seed( s ) influences our output. We ask you to set the seed to what we
# set the seed so you get the same output as us (look at chatter.py and how your output
# should've matched ours for a given seed!) No coding questions involving random - possible
# short answer question involving random!

# SEED -> influences output -> same random output so long as that seed is set!

''' URL.PY '''
# The url module provides functions for web acquisition.
# So url.get_contents( link ) gets the contents of the webpage as a large string
# url.get_dataset( link ) gets the csv from the webpage and turns it into a dataset (list of lists)

''' TEST PREP '''
# Start with homework (make sure you can code it up on your own!)
# BUTTTTTTTTTTTTTTTTTTTTT also look at previous tests under Testing!!! (14/10 would recommend)
# Practicing the coding questions on previous exams as well as the short answer
# will help you get faster at coding problems and will give you so much exposure to the
# structure of the exam / common questions / anything we could throw at you basically so
# you'd be super prepared.

# From what I've seen.... the more exams you practice and practice you get with coding,
# the better you'll perform :)

''' INDEXING '''
# Indexing is a way to look into the sequence and get the part of the sequence at the numeric index.
# strings -> get characters at indices
# lists -> get elements at indices

# Strings
s = 'a string'
#    01234567         # These are indices (multiple index values!)
# The length os s is 8 but our indices go from 0 to 7!
# The first index is 0
# The last index is at length(s) - 1 (in this case 8-1 = 7)

ch = input("Enter character: ")
i1 = s.find( ch ) # Returns the number index where ch occurs in s / returns -1 if ch not found
# i2 = s.index( ch ) # Returns the number index where ch occurs in s / throws an error if ch not found
print( i1 )
# print( i2 )

# Getting a character in the string using an index (subscripting)
# s = 'computer'
#      01234567
# s[0] -> 'c'
# s[4] -> 'u'

# Lists
x = [ 1,2,'abc',3.14,[5,6] ]
#     0 1   2    3     4           # Indexes
reply = input( 'Enter number: ' )
j = int( reply )
i2 = x.index( j ) # Returns the number index where j occurs / blows up (throws an error) if j is not found
print(i2)

# Getting an element in the list using an index (Subscripting a List)
# x[0] -> 1
# x[4] -> [5,6]

dataset = [[1,7,3],[14,5,6],[7,8,9]]  # get the dataset

list_max_values = []  # set up dataset processing (if needed)
# We might want to build up a list of values by looping through the rows in our dataset

for row in dataset:  # consider rows one by one

    # process current row of the dataset

    max_value_of_row = max( row )  # process the row

    list_max_values.append( max_value_of_row ) # finish off dataset (if needed)

print( list_max_values ) # [7,14,9] (list of the max values in each smaller list in our dataset)


''' CALLING INT '''
s = '1 2 3'
# t = s.split() # ['1','2','3']
# You cannot call int(t) because then you would be calling int(['1','2','3'])
# and the int() function cannot convert an entire list to a list of integers
# x1 = int( s ) # Cannot call int('1 2 3')
# print( x1 )

# int('1') or int(1.2)
# int(x) can only convert ONE thing.
# GIVE IT A SINGLE STRING OR A SINGLE FLOAT TO CONVERT TO AN INT
# Cannot do int('1 2 3')
# Cannot do int(['1','2','3'])

t = ['1','2','3']
numbers = []
for ns in t:
    int_ns = int( ns )
    numbers.append( int_ns )
# numbers [1,2,3]
print( numbers )

''' REVEAL.PY IDEA FOR LAST 3 LINES (SUBSCRIPTING FROM A LIST OF WORDS) '''
list_strings = ['the','fox','jumped','over','the','lazy','run']
#                 0     1      2       3       4     5     6
indices = [1,5,3]
for i in indices: # Go through the list of numbers (the indexes we'll use to get words from our list)
    word = list_strings[ i ] # words[i] in reveal.py (get the word at each index i)
    print( i, word ) # print(word) in reveal.py (print the word at index i)