from collections import namedtuple

Measurement = namedtuple('Measurement',
  ['town', 'time', 'direction', 'speed', 'temperature'])

def format_time(raw):
  hour = raw[:2]
  minute = raw[2:]
  return f'{hour}:{minute}'

# 1.
data = []
with open('tavirathu13.txt') as f:
  lines = [line.split(' ') for line in f.read().splitlines()]
  for line in lines:
    data.append(Measurement(line[0], line[1], line[2][:3], line[2][3:], line[3]))

# 2.
print('2. feladat')
print('Adja meg egy település kódját!')
input_town = input('Telepules: ')
for entry in data[::-1]:
  if entry.town == input_town:
    print(f'Az utolsó mérési adat a megadott településről {format_time(entry.time)}-kor érkezett.')
    break

# 3.
print('3. feladat')
smallest = sorted(data, key=lambda x: x.temperature)[0]
biggest = sorted(data, key=lambda x: x.temperature)[-1]
print(f'A legalacsonyabb hőmérséklet: {smallest.town} {format_time(smallest.time)} {smallest.temperature} fok.')
print(f'A legmagasabb hőmérséklet: {biggest.town} {format_time(biggest.time)} {biggest.temperature} fok.')

# 4.
print('4. feladat')
no_winds = filter(lambda x: x.speed == '00' and x.direction == '000', data)
for entry in no_winds:
  print(f'{entry.town}: {format_time(entry.time)}')
if not no_winds:
  print('Nem volt szélcsend a mérések idején')

# 5.
print('5. feladat')
daily_mid = dict()
daily_mid_hours = dict()
daily_smallest = dict()
daily_biggest = dict()
for entry in data:
  if int(entry.time[:2]) in [1, 7, 13, 19]:
    daily_mid[entry.town] = daily_mid.get(entry.town, []) + [entry.temperature]
    daily_mid_hours[entry.town] = set.union(
      daily_mid_hours.get(entry.town, set()),
      set([entry.time[:2]])
    )

  prev_smallest = daily_smallest.get(entry.town, None)
  if (prev_smallest is None or prev_smallest > entry.temperature):
    daily_smallest[entry.town] = entry.temperature

  prev_biggest = daily_biggest.get(entry.town, None)
  if (prev_biggest is None or prev_biggest < entry.temperature):
    daily_biggest[entry.town] = entry.temperature

for town in daily_smallest.keys():
  town_delta = int(daily_biggest[town]) - int(daily_smallest[town])
  town_mid = 'NA'
  if len(daily_mid_hours[town]) == 4:
    sum = 0
    for temperature in daily_mid[town]:
      sum += int(temperature)
    town_mid = round(sum / len(daily_mid[town]))
  print(f'{town} Középhőmérséklet: {town_mid}; Hőmérséklet-ingadozás: {town_delta}')

# 6.
print('6. feladat')
for town in daily_smallest.keys():
  with open(f'{town}.txt', 'w') as f:
    current_data = filter(lambda x: x.town == town, data)
    for idx, entry in enumerate(current_data):
      if idx == 0:
        print(entry.town, file=f)
      bars = '#' * int(entry.speed)
      print(f'{format_time(entry.time)} {bars}', file=f)
print('A fájlok elkészültek.')