from flask import flash
from flask_wtf import FlaskForm
from markupsafe import Markup
import requests, re
from wtforms import StringField, SubmitField, TextAreaField, SelectField, HiddenField
from wtforms.fields.html5 import EmailField, DateField
from flask_wtf.file import FileField, FileAllowed, FileRequired
from wtforms.validators import ValidationError, DataRequired, Email
from app.entreprises.models import Entreprise, EntrepriseContact
from app.models import Identite
from app.auth.models import User
from app.scodoc import sco_etud
from sqlalchemy import text

CHAMP_REQUIS = "Ce champ est requis"


class EntrepriseCreationForm(FlaskForm):
    siret = StringField(
        "SIRET",
        validators=[DataRequired(message=CHAMP_REQUIS)],
        render_kw={"placeholder": "Numéro composé de 14 chiffres", "maxlength": "14"},
    )
    nom_entreprise = StringField(
        "Nom de l'entreprise",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    adresse = StringField(
        "Adresse de l'entreprise",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    codepostal = StringField(
        "Code postal de l'entreprise",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    ville = StringField(
        "Ville de l'entreprise",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    pays = StringField(
        "Pays de l'entreprise",
        validators=[DataRequired(message=CHAMP_REQUIS)],
        render_kw={"style": "margin-bottom: 50px;"},
    )

    nom_contact = StringField(
        "Nom du contact", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    prenom_contact = StringField(
        "Prénom du contact",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    telephone = StringField(
        "Téléphone du contact",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    mail = EmailField(
        "Mail du contact",
        validators=[
            DataRequired(message=CHAMP_REQUIS),
            Email(message="Adresse e-mail invalide"),
        ],
    )
    poste = StringField("Poste du contact", validators=[])
    service = StringField("Service du contact", validators=[])
    submit = SubmitField("Envoyer", render_kw={"style": "margin-bottom: 10px;"})

    def validate_siret(self, siret):
        siret = siret.data.strip()
        if re.match("^\d{14}$", siret) == None:
            raise ValidationError("Format incorrect")
        req = requests.get(
            f"https://entreprise.data.gouv.fr/api/sirene/v1/siret/{siret}"
        )
        if req.status_code != 200:
            raise ValidationError("SIRET inexistant")
        entreprise = Entreprise.query.filter_by(siret=siret).first()
        if entreprise is not None:
            lien = f'<a href="/ScoDoc/entreprises/fiche_entreprise/{entreprise.id}">ici</a>'
            raise ValidationError(
                Markup(f"Entreprise déjà présent, lien vers la fiche : {lien}")
            )


class EntrepriseModificationForm(FlaskForm):
    siret = StringField("SIRET", validators=[], render_kw={"disabled": ""})
    nom = StringField(
        "Nom de l'entreprise",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    adresse = StringField("Adresse", validators=[DataRequired(message=CHAMP_REQUIS)])
    codepostal = StringField(
        "Code postal", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    ville = StringField("Ville", validators=[DataRequired(message=CHAMP_REQUIS)])
    pays = StringField("Pays", validators=[DataRequired(message=CHAMP_REQUIS)])
    submit = SubmitField("Modifier", render_kw={"style": "margin-bottom: 10px;"})


class OffreCreationForm(FlaskForm):
    intitule = StringField("Intitulé", validators=[DataRequired(message=CHAMP_REQUIS)])
    description = TextAreaField(
        "Description", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    type_offre = SelectField(
        "Type de l'offre",
        choices=[("Stage"), ("Alternance")],
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    missions = TextAreaField(
        "Missions", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    duree = StringField("Durée", validators=[DataRequired(message=CHAMP_REQUIS)])
    submit = SubmitField("Envoyer", render_kw={"style": "margin-bottom: 10px;"})


class OffreModificationForm(FlaskForm):
    intitule = StringField("Intitulé", validators=[DataRequired(message=CHAMP_REQUIS)])
    description = TextAreaField(
        "Description", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    type_offre = SelectField(
        "Type de l'offre",
        choices=[("Stage"), ("Alternance")],
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    missions = TextAreaField(
        "Missions", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    duree = StringField("Durée", validators=[DataRequired(message=CHAMP_REQUIS)])
    submit = SubmitField("Modifier", render_kw={"style": "margin-bottom: 10px;"})


class ContactCreationForm(FlaskForm):
    hidden_entreprise_id = HiddenField()
    nom = StringField("Nom", validators=[DataRequired(message=CHAMP_REQUIS)])
    prenom = StringField("Prénom", validators=[DataRequired(message=CHAMP_REQUIS)])
    telephone = StringField(
        "Téléphone", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    mail = EmailField(
        "Mail",
        validators=[
            DataRequired(message=CHAMP_REQUIS),
            Email(message="Adresse e-mail invalide"),
        ],
    )
    poste = StringField("Poste", validators=[])
    service = StringField("Service", validators=[])
    submit = SubmitField("Envoyer", render_kw={"style": "margin-bottom: 10px;"})

    def validate(self):
        rv = FlaskForm.validate(self)
        if not rv:
            return False

        contact = EntrepriseContact.query.filter_by(
            entreprise_id=self.hidden_entreprise_id.data,
            nom=self.nom.data,
            prenom=self.prenom.data,
        ).first()

        if contact is not None:
            self.nom.errors.append("Ce contact existe déjà (même nom et prénom)")
            self.prenom.errors.append("")
            return False

        return True


class ContactModificationForm(FlaskForm):
    nom = StringField("Nom", validators=[DataRequired(message=CHAMP_REQUIS)])
    prenom = StringField("Prénom", validators=[DataRequired(message=CHAMP_REQUIS)])
    telephone = StringField(
        "Téléphone", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    mail = EmailField(
        "Mail",
        validators=[
            DataRequired(message=CHAMP_REQUIS),
            Email(message="Adresse e-mail invalide"),
        ],
    )
    poste = StringField("Poste", validators=[])
    service = StringField("Service", validators=[])
    submit = SubmitField("Modifier", render_kw={"style": "margin-bottom: 10px;"})


class HistoriqueCreationForm(FlaskForm):
    etudiant = StringField(
        "Étudiant",
        validators=[DataRequired(message=CHAMP_REQUIS)],
        render_kw={"placeholder": "Tapez le nom de l'étudiant puis selectionnez"},
    )
    type_offre = SelectField(
        "Type de l'offre",
        choices=[("Stage"), ("Alternance")],
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    date_debut = DateField(
        "Date début", validators=[DataRequired(message=CHAMP_REQUIS)]
    )
    date_fin = DateField("Date fin", validators=[DataRequired(message=CHAMP_REQUIS)])
    submit = SubmitField("Envoyer", render_kw={"style": "margin-bottom: 10px;"})

    def validate(self):
        rv = FlaskForm.validate(self)
        if not rv:
            return False

        if self.date_debut.data > self.date_fin.data:
            self.date_debut.errors.append("Les dates sont incompatibles")
            self.date_fin.errors.append("Les dates sont incompatibles")
            return False
        return True

    def validate_etudiant(self, etudiant):
        etudiant_data = etudiant.data.upper().strip()
        stm = text(
            "SELECT id, CONCAT(nom, ' ', prenom) as nom_prenom FROM Identite WHERE CONCAT(nom, ' ', prenom)=:nom_prenom"
        )
        etudiant = (
            Identite.query.from_statement(stm).params(nom_prenom=etudiant_data).first()
        )
        if etudiant is None:
            raise ValidationError("Champ incorrect (selectionnez dans la liste)")


class EnvoiOffreForm(FlaskForm):
    responsable = StringField(
        "Responsable de formation",
        validators=[DataRequired(message=CHAMP_REQUIS)],
    )
    submit = SubmitField("Envoyer", render_kw={"style": "margin-bottom: 10px;"})

    def validate_responsable(self, responsable):
        responsable_data = responsable.data.upper().strip()
        stm = text(
            "SELECT id, UPPER(CONCAT(nom, ' ', prenom, ' ', '(', user_name, ')')) FROM \"user\" WHERE UPPER(CONCAT(nom, ' ', prenom, ' ', '(', user_name, ')'))=:responsable_data"
        )
        responsable = (
            User.query.from_statement(stm)
            .params(responsable_data=responsable_data)
            .first()
        )
        if responsable is None:
            raise ValidationError("Champ incorrect (selectionnez dans la liste)")


class AjoutFichierForm(FlaskForm):
    fichier = FileField(
        "Fichier",
        validators=[
            FileRequired(message=CHAMP_REQUIS),
            FileAllowed(["pdf", "docx"], "Fichier .pdf ou .docx uniquement"),
        ],
    )
    submit = SubmitField("Envoyer", render_kw={"style": "margin-bottom: 10px;"})


class SuppressionConfirmationForm(FlaskForm):
    submit = SubmitField("Supprimer", render_kw={"style": "margin-bottom: 10px;"})