Priority

gistfile1.txt

#!/usr/bin/env python3

from prioritize import MaxHeapq
import code

class Task:

    tasks = []

    def __init__(self, *args, **kwargs):
        self.description = kwargs["description"]
        self.duration = str(kwargs["duration"]) + " min"
        self.multitask = kwargs["multitask"] 
        self.dependencies = kwargs["dependencies"]
        self.status = kwargs["status"]
        self.id = self.assign_id() if self.tasks else 1 
        self.tasks.append(self)
    
    def execute(self):
        if not self.multitask:
            self.duration = 0 
            self.status = "COMPLETED"

    def ongoing_dependencies(self):
        ongoing_dependencies = [] 
        for id in self.dependencies: 
            dependency = self.find_by_id(id)
            if dependency.status == "NOT-YET-STARTED" or dependency.status == "IN-PROGRESS":
                ongoing_dependencies.append(id)
        return ongoing_dependencies
        
    def priority(self, priority_score=100):
        return priority_score - len(self.get_total_dependencies())
            
    def get_total_dependencies(self):
        # soft and hard dependencies
        if len(self.ongoing_dependencies()) == 0: 
            return set()
         
        total_dependencies = set(self.ongoing_dependencies())

        for dependency_id in self.ongoing_dependencies():
            dependency = self.find_by_id(dependency_id)
            total_dependencies |= dependency.get_total_dependencies()

        return total_dependencies
    
    def assign_id(self):
        return self.last().id + 1
    
    @classmethod 
    def find_by_id(cls, id):
        for i in cls.tasks: 
            if i.id == id:
                return i 
        else: 
            print(f"Task with ID: {id} does not exist.")
            return None 

    @classmethod 
    def last(cls):
        return cls.tasks[-1]

    @classmethod
    def all(cls):
        return cls.tasks 

    @classmethod 
    def update_dependencies(cls, completed_task_id):
        for i in cls.all():
            if completed_task_id in i.dependencies:
                i.dependencies.remove(completed_task_id)
    
    @classmethod 
    def recalculate_priorities():
        pass

golden1 = Task(
  description="Walk around lake",
  duration=20,
  multitask=True,
  dependencies=[],
  status="NOT-YET-STARTED"
)
golden2 = Task(
  description="Buy museum tickets",
  duration=3,
  multitask=False,
  dependencies=[golden1.id],
  status="NOT-YET-STARTED"
)
golden3 = Task(
  description="Explore museum",
  duration=30,
  multitask=True,
  dependencies=[golden1.id, golden2.id],
  status="NOT-YET-STARTED"
)
#Discover music
music1 = Task(
  description="Research music",
  duration=5,
  multitask=False,
  dependencies=[],
  status="NOT-YET-STARTED"
)
music2 = Task(
  description="Choose songs",
  duration=10,
  multitask=False,
  dependencies=[music1.id],
  status="NOT-YET-STARTED"
)
music3 = Task(
  description="Create playlist",
  duration=10,
  multitask=False,
  dependencies=[music1.id, music2.id],
  status="NOT-YET-STARTED"
)
music4 = Task(
  description="Listen songs",
  duration=100,
  multitask=True,
  dependencies=[music1.id, music2.id, music3.id],
  status="NOT-YET-STARTED"
)
#Castro St
castro1 = Task(
  description="Take bus",
  duration=30,
  multitask=True,
  dependencies=[],
  status="NOT-YET-STARTED"
)
castro2 = Task(
  description="Walk on Castro",
  duration=30,
  multitask=True,
  dependencies=[castro1.id],
  status="NOT-YET-STARTED"
)
castro3 = Task(
  description="Buy snacks",
  duration=10,
  multitask=True,
  dependencies=[castro1.id],
  status="NOT-YET-STARTED"
)
castro4 = Task(
  description="Theatre",
  duration=120,
  multitask=False,
  dependencies=[castro1.id, castro2.id],
  status="NOT-YET-STARTED"
)
#Corona heights
corona1 = Task(
  description="Decide route",
  duration=5,
  multitask=False,
  dependencies=[],
  status="NOT-YET-STARTED"
)
corona2 = Task(
  description="Get to trail",
  duration=5,
  multitask=False,
  dependencies=[castro1.id, castro2.id, castro3.id, castro4.id],
  status="NOT-YET-STARTED"
)
corona3 = Task(
  description="Walk trail",
  duration=60,
  multitask=True,
  dependencies=[corona2.id],
  status="NOT-YET-STARTED"
)
corona4 = Task(
  description="Drink Water",
  duration=10,
  multitask=True,
  dependencies=[corona2.id],
  status="NOT-YET-STARTED"
)
corona5 = Task(
  description="Go for meal",
  duration=30,
  multitask=True,
  dependencies=[corona3.id, corona4.id],
  status="NOT-YET-STARTED"
)
#Financial Districr
financial1 = Task(
  description="Eat meal",
  duration=40,
  multitask=True,
  dependencies=[corona5.id],
  status="NOT-YET-STARTED"
)
financial2 = Task(
  description="Discover skyscrapers",
  duration=40,
  multitask=True,
  dependencies=[financial1.id],
  status="NOT-YET-STARTED"
)
financial3 = Task(
  description="Research skyscrapers story",
  duration=10,
  multitask=False,
  dependencies=[financial1.id],
  status="NOT-YET-STARTED"
)

activities = [
    (golden1.priority(), golden1),
    (golden2.priority(), golden2), 
    (golden3.priority(), golden3),
    (music1.priority(), music1),
    (music2.priority(), music2),
    (music3.priority(), music3),
    (music4.priority(), music4),
    (castro1.priority(), castro1),
    (castro2.priority(), castro2),
    (castro3.priority(), castro3),
    (castro4.priority(), castro4),
    (corona1.priority(), corona1),
    (corona2.priority(), corona2),
    (corona3.priority(), corona3),
    (corona4.priority(), corona4),
    (corona5.priority(), corona5),
    (financial1.priority(), financial1),
    (financial2.priority(), financial2),
    (financial3.priority(), financial3)
]


heaptask = MaxHeapq()

for task in activities:
    heaptask.insert(task)

for i in heaptask.heap: 
    i[1].execute()
    Task.update_dependencies(i[1].id)
    heaptask.extract_max()
    # Update the heap (because priority score changed)
    # Reform the heap