import pygal
import csv
import time
import datetime
import datetime
import hashlib
from collections import OrderedDict
import termios
import tty
import sys
import inputs
import formatting as f

print("welcome to lock-n-log, the best way to organise and analyse your focus time!")

print("tag for session? ", end="", flush=True)
tag = input()
if tag == "":
    tag = "work"

valid_timer_types = ('t', 's')
option = False
while not option:
    print("(t)imer or (s)topwatch? ", end="", flush=True)
    option = inputs.get_valid_char(valid_timer_types)
    print("")

if option == 't':
    print("timer length (in minutes)? ", end="", flush=True)
    timer_length = inputs.get_pos_int()
    while not timer_length:
        print("please enter a positive integer")
        print("timer length (in minutes)? ", end="", flush=True)
        timer_length = inputs.get_pos_int()

    time_left = timer_length
    start = datetime.datetime.now()
    end = start + datetime.timedelta(seconds=time_left) # change to mins in final
    accum = 0
    timeout = 1/120 # 120Hz refresh

    old_settings = termios.tcgetattr(sys.stdin)
    tty.setcbreak(sys.stdin.fileno())
    while True:
        now = datetime.datetime.now()
        time_left = end - now
        if time_left.total_seconds() <= 0:
            break

        ch = inputs.getch_nb(timeout)
        if ch == 'q':
            print("exited early!")
            break
        # see https://gist.github.com/fnky/458719343aabd01cfb17a3a4f7296797
        print("\x1b[2K\r" + inputs.delta_to_HM(time_left), end="", flush=True)
        accum += timeout
        if accum >= 1:
            accum = 0
    termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)

    print("\nfocus session finished!\nlogging...")
    session = OrderedDict()
    session["id"] = hashlib.sha256(str(start).encode('utf8')).hexdigest()
    session["date"] = start.strftime("%Y-%m-%d")
    session["start"] = start.strftime("%H:%M")
    session["elapsed"] = int(timer_length - time_left.total_seconds())
    session["type"] = "focus"
    session["tag"] = tag
    session["timer"] = "timer"
    session["ratio"] = 0.2
    #print(session)

    f.sesh_to_log(session, "lock-n-log.csv")