# state_machine.py
import json
from GestionInscriptions.models import FicheInscription
from GestionInscriptions.signals import clear_cache

state_mapping = {
    "ABSENT": FicheInscription.EtatDossierInscription.DI_ABSENT, 
    "CREE": FicheInscription.EtatDossierInscription.DI_CREE,
    "ENVOYE": FicheInscription.EtatDossierInscription.DI_ENVOYE,
    "EN_VALIDATION": FicheInscription.EtatDossierInscription.DI_EN_VALIDATION,
    "A_RELANCER": FicheInscription.EtatDossierInscription.DI_A_RELANCER,
    "VALIDE": FicheInscription.EtatDossierInscription.DI_VALIDE,
    "ARCHIVE": FicheInscription.EtatDossierInscription.DI_ARCHIVE
}

def load_config(config_file): 
    with open(config_file, 'r') as file: 
        config = json.load(file) 
        return config

def getStateMachineObject(etat) :
    return Automate_DI_Inscription(etat)

def getStateMachineObjectState(etat):
    return Automate_DI_Inscription(etat).state

def updateStateMachine(di, transition) :
    automateModel = load_config('GestionInscriptions/Configuration/automate.json')
    state_machine = getStateMachineObject(di.etat)
    print(f'etat DI : {state_machine.state}')
    if state_machine.trigger(transition, automateModel):
        di.etat = state_machine.state
        di.save()
        clear_cache()

class Automate_DI_Inscription:
    def __init__(self, initial_state):
        self.state = initial_state

    def trigger(self, transition_name, config):
        for transition in config["transitions"]:
            if transition["name"] == transition_name and self.state == state_mapping[transition["from"]]:
                self.state = state_mapping[transition["to"]]
                return True
        return False