# Analyses the "Todo.txt" file and returns a report
# More about the Todo.txt format: http://todotxt.org/
#
# Needs: python3
#
# Todo:
# - Check out the library: https://github.com/vonshednob/pytodotxt
#
# COPYLEFT - NO WARRANTIES! - I'M A NOOB LICENSE

# https://pendulum.eustace.io/
import pendulum
# https://pypi.org/project/inflect/
import inflect

## Start the language engine
p = inflect.engine()

# Point this to your todo.txt file
PATH_TODOTXT = '/Users/You/todo.txt'
# Projects to check for in the report
PROJECTS = ['@PROJECT1', '@PROJECT2','@personal']
TZ = 'Europe/Berlin'

with open(PATH_TODOTXT) as f:
    lines = f.readlines()

number_of_occurences = 0

DATE_FORMAT = '%Y-%m-%d'
TASKS_OPEN = []
TASKS_DONE = []
TASKS_DUE = []
TASKS_DUE_TODAY = []
TASKS_OVERDUE = []

TODAY = pendulum.today()

for line in lines:
    for project in PROJECTS:
      for word in line.split():
          if word == project:
            if (line.startswith('x ') == False):
              TASKS_OPEN.append(project)
              if ('due:' in line):
                line = line.replace('\n','')
                theDueDateStr = line[-10:]
                theDueDate = pendulum.parse(theDueDateStr + "T00:00:00", tz=TZ)
                # print(f"The due date is {theDueDate.strftime(DATE_FORMAT)}")
                TASKS_DUE.append(project)
                if (theDueDate < TODAY):
                  TASKS_OVERDUE.append(project)
                elif (theDueDate == TODAY):
                  TASKS_DUE_TODAY.append(project)
            else :
              TASKS_DONE.append(project)

print(f"=== Todo.txt Report For {TODAY.strftime(DATE_FORMAT)} ===")

for project in PROJECTS:
    open = TASKS_OPEN.count(project)
    closed = TASKS_DONE.count(project)
    due = TASKS_DUE.count(project)
    overdue = TASKS_OVERDUE.count(project)
    duetoday = TASKS_DUE_TODAY.count(project)

    nrOpenTasks = p.plural("todo", open)
    nrClosedTasks = p.plural("todo", closed)

    if (open > 0 and due > 0):
      if (overdue > 0):
        isAre = p.plural("is", overdue)
        print(f"Project {project} has {open} {nrOpenTasks} of which {overdue} {isAre} overdue!")
      elif (duetoday > 0):
        isAre = p.plural("is", duetoday)
        print(f"Project {project} has {open} {nrOpenTasks} of which {duetoday} {isAre} due today!")
      else:
        isAre = p.plural("is", duetoday)
        print(f"Project {project} has {open} {nrOpenTasks} of which {due} {isAre} due.")
    elif (open == 0 and closed == 0):
      print(f"Project {project} has no todos.")
    else:
      print(f"Project {project} has {open} {nrOpenTasks}.")

print("=== Have a nice day! ===")