from nullptr.missions.base import BaseMission, MissionParam
from nullptr.models.waypoint import Waypoint
from nullptr.models.survey import Survey
from nullptr.models.contract import Contract

class MiningMission(BaseMission): 
  @classmethod
  def params(cls):
    return {
      'site': MissionParam(Waypoint, True),
      'resource': MissionParam(str, True),
      'dest': MissionParam(Waypoint, True),
      'delivery': MissionParam(str, True, 'deliver'),
      'contract': MissionParam(Contract, False)
    }
  
  def start_state(self):
    return 'travel-to'
    
  def steps(self):
    return {
      **self.travel_steps('to', 'site', 'extract'),
      'extract': (self.step_extract, {
        'done': 'dock',
        'more': 'extract'
      }),
      'dock': (self.step_dock, 'sell'),
      'sell': (self.step_sell, {
        'more': 'sell',
        'done': 'orbit',
      }),
      'orbit': (self.step_orbit, 'jettison'),
      'jettison': (self.step_dispose, {
        'more': 'jettison',
        'done': 'extract',
        'full': 'travel-back'
      }),
      **self.travel_steps('back', 'dest', 'unload'),
      'unload': (self.step_unload, {
        'done': 'travel-to',
        'more': 'unload'
      }),
    }
  
  def get_survey(self):
    resource = self.st('resource')
    site = self.rst(Waypoint,'site')
    # todo optimize
    for s in self.store.all(Survey):
      if resource in s.deposits and site.symbol == s.waypoint():
        return s
    return None
    
  def step_extract(self):
    survey = self.get_survey()
    print('using survey:', str(survey)) 
    result = self.api.extract(self.ship, survey)
    symbol = sg(result,'extraction.yield.symbol')
    units  = sg(result,'extraction.yield.units')
    print('extracted:', units, symbol)
    self.next_step = self.ship.cooldown
    if self.ship.cargo_units < self.ship.cargo_capacity:
      return 'more'
    else:
      return 'done'
  
  def step_dispose(self):
    contract = self.rst(Contract, 'contract')
    typs = self.ship.nondeliverable_cargo(contract)
    if len(typs) > 0:
      self.api.jettison(self.ship, typs[0])
    if len(typs) > 1:
      return 'more'
    elif self.ship.cargo_units > self.ship.cargo_capacity - 3:
      return 'full'
    else:
      return 'done'