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#!/usr/bin/env python
# Challenge 103
#
# TASK #2 > What's playing?
# Submitted by: Albert Croft
# Working from home, you decided that on occasion you wanted some background
# noise while working. You threw together a network streamer to continuously
# loop through the files and launched it in a tmux (or screen) session, giving
# it a directory tree of files to play. During the day, you connected an audio
# player to the stream, listening through the workday, closing it when done.
#
# For weeks you connect to the stream daily, slowly noticing a gradual drift of
# the media. After several weeks, you take vacation. When you return, you are
# pleasantly surprised to find the streamer still running. Before connecting,
# however, if you consider the puzzle of determining which track is playing.
#
# After looking at a few modules to read info regarding the media, a quick bit
# of coding gave you a file list. The file list is in a simple CSV format, each
# line containing two fields: the first the number of milliseconds in length,
# the latter the media's title (this example is of several episodes available
# from the MercuryTheatre.info):
#
# 1709363,"Les Miserables Episode 1: The Bishop (broadcast date: 1937-07-23)"
# 1723781,"Les Miserables Episode 2: Javert (broadcast date: 1937-07-30)"
# 1723781,"Les Miserables Episode 3: The Trial (broadcast date: 1937-08-06)"
# 1678356,"Les Miserables Episode 4: Cosette (broadcast date: 1937-08-13)"
# 1646043,"Les Miserables Episode 5: The Grave (broadcast date: 1937-08-20)"
# 1714640,"Les Miserables Episode 6: The Barricade (broadcast date: 1937-08-27)"
# 1714640,"Les Miserables Episode 7: Conclusion (broadcast date: 1937-09-03)"
# For this script, you can assume to be provided the following information:
#
# * the value of $^T ($BASETIME) of the streamer script,
# * the value of time(), and
# * a CSV file containing the media to play consisting of the length in
# milliseconds and an identifier for the media (title, filename, or other).
# Write a program to output which file is currently playing. For purposes of
# this script, you may assume gapless playback, and format the output as you
# see fit.
#
# Optional: Also display the current position in the media as a time-like value.
#
# Example:
#
# Input: 3 command line parameters: start time, current time, file name
#
# # Streamer start time: Tue Nov 23 12:22:03 2020
# 1606134123
#
# # Current time: Mon Mar 1 09:34:36 2021
# 1614591276
#
# # filelist.csv
#
# Output:
#
# "Les Miserables Episode 1: The Bishop (broadcast date: 1937-07-23)"
# 00:17:33
import csv
import sys
def read_playlist(filename):
playlist = []
with open(filename) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=',')
for row in csv_reader:
playlist.append([int(int(row[0])/1000+0.5), row[1]])
return playlist
def total_time(playlist):
sum = 0
for x in playlist:
sum += x[0]
return sum
def show_title(start_secs, current_secs, playlist_file):
playlist = read_playlist('playlist.csv')
total_secs = current_secs - start_secs
playlist_total_secs = total_time(playlist)
playlist_secs = total_secs % playlist_total_secs
for item in playlist:
if playlist_secs < item[0]:
print(item[1])
hh = int(playlist_secs/3600)
playlist_secs %= 3600
mm = int(playlist_secs/60)
playlist_secs %= 60
ss = playlist_secs;
print("{:02}:{:02}:{:02}".format(hh, mm, ss))
break
else:
playlist_secs -= item[0]
show_title(int(sys.argv[1]), int(sys.argv[2]), sys.argv[3])
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