import json
import os
import sys

from datetime import datetime

import django
from django.contrib.auth import get_user_model

# Configuration
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "annuaire.settings")
django.setup()

User = get_user_model()

from fiches.management.commands._ldap import ClipperLDAP
from fiches.models import Address, Department, Mail, Phone, Profile

# Utilitaires
def parse_date(s):
    try:
        return datetime.strptime(s, "%d/%m/%Y").date()
    except ValueError:
        return ""


def get_text_field(data):
    text = ""
    if data["interets"]:
        text += "Mes intérêts :\n" + data["interets"] + "\n\n"
    if data["pages_web"]:
        text += "Mes pages web :\n" + data["pages_web"] + "\n\n"
    if data["commentaires"]:
        text += data["commentaires"] + "\n\n"
    return text


def get_address(data):
    content = data["lignes"] + "\n"
    if data["code_postal"] and data["ville"]:
        content += data["code_postal"] + ", " + data["ville"]
    elif data["code_postal"] or data["ville"]:
        content += data["code_postal"] + data["ville"]
    if data["pays"]:
        content += ", " + data["pays"]
    return content


def parse_list(s):
    return [p for p in s.split(",").split("\n").split(";") if p]


def create_phones(s, profile, numeros, name="Téléphone"):
    for p in parse_list(s):
        numeros.append(Phone(profile=profile, name=name, content=p))


def create_mails(s, profile, mails, name="E-mail"):
    for m in parse_list(s):
        mails.append(Mail(profile=profile, name=name, content=m))

# On récupère la liste des élèves à créer
ldap = ClipperLDAP()
clipper_list = ldap.get_clipper_list(stdout=sys.stdout)

# On vire les élèves déjà existants
existing_users = set(User.objects.values_list("username", flat=True))
clippers = [clipper for clipper in clipper_list if clipper.uid not in existing_users]

# On récupère la liste des départements
depts = {
    dept: Department.objects.get_or_create(name=dept)[0].id
    for dept in ldap.verbose_depts.values()
}

users_to_create = []
users = {}
profiles_to_create = []
dept_m2m_to_create = []

for clipper in clippers:
    user = User(username=clipper.uid, email=clipper.email)
    users["clipper.uid"] = (user, clipper)
    users_to_create.append(user)

User.objects.bulk_create(users_to_create)

fiches = {}
references = {}
adresses = []
devises = {}
numeros = []
mails = []

# On recrée les profils
with open("old_fiches.json") as json_file:
    data = json.load(json_file)
    for obj in data:
        obj_data = obj["fields"]
        user, clipper = users[obj_data["id"]]
        fiches[obj_data["n_id"]] = Profile(
            user=user,
            full_name=" ".join(obj_data["prenom"], obj_data["nom"]),
            promotion=clipper.promotion,
            birth_date=parse_date(obj_data["date_de_naissance"]),
            past_studies=obj_data["etudes_passees"] + "\n" + obj_data["etudes"],
            experiences=obj_data["experiences"],
            thurne=obj_data["thurne"],
            text_field=get_text_field(obj_data),
        )
        create_phones(data["telephones"], fiches[obj_data["n_id"]], numeros)
        create_phones(data["portables"], fiches[obj_data["n_id"]], numeros, name="Portable")
        create_mails(data["emails"], fiches[obj_data["n_id"]], numeros)
        dept_m2m_to_create.append(
            Profile.department.through(
                profile=fiches[obj_data["n_id"]], department_id=depts[clipper.dept]
            )
        )

Profile.objects.bulk_create(fiches.values())
for dept_m2m in dept_m2m_to_create:
    dept_m2m.profile_id = dept_m2m.profile.id
Profile.department.through.objects.bulk_create(dept_m2m_to_create)

# On récupère les adresses
with open("old_adresses.json") as json_file:
    data = json.load(json_file)
    for obj in data:
        obj_data = obj["fields"]
        profile = fiches[obj_data["n_id"]]
        adresses.append(
            Address(
                profile=profile,
                name="Adresse",
                content=get_address(obj_data),
            )
        )
        create_phones(obj_data["telephones"], profile, numeros)

for p in numeros:
    p.profile_id = p.profile.id
Phone.objects.bulk_create(numeros)

for m in mails:
    m.profile_id = m.profile.id
Mail.objects.bulk_create(mails)