from flask import Blueprint, render_template, request, redirect, url_for, session, flash
from werkzeug.security import check_password_hash, generate_password_hash
from sqlalchemy import text
from app import db
from datetime import datetime

main = Blueprint('main', __name__)

# Route pour la page d'accueil
@main.route('/', methods=['GET', 'POST'])
def index():
    if 'user_id' in session:
        return redirect(url_for('main.menu'))

    if 'login_attempts' not in session:
        session['login_attempts'] = 0

    if request.method == 'POST':
        user_login = request.form.get('login')
        user_pass = request.form.get('pass')

        query = text("SELECT id, pass AS user_pass, nom, prenom FROM login WHERE login = :login AND actif = 1")
        result = db.session.execute(query, {"login": user_login}).fetchone()

        if result and check_password_hash(result.user_pass, user_pass):
            session.pop('login_attempts', None)
            session['user_id'] = result.id
            session['user_name'] = f"{result.prenom} {result.nom}"
            return redirect(url_for('main.menu'))
        else:
            session['login_attempts'] += 1
            
            if session['login_attempts'] >= 3:
                session.pop('login_attempts', None)
                return redirect('https://giraud-finance.com')
            
            essais_restants = 3 - session['login_attempts']
            flash(f"Identifiant ou mot de passe incorrect. Il vous reste {essais_restants} essai(s).", "danger")

    return render_template('index.html')

# Route pour la déconnexion
@main.route('/logout')
def logout():
    session.clear()
    return redirect(url_for('main.index'))

# Route pour le menu principal
@main.route('/menu')
def menu():
    if 'user_id' not in session:
        return redirect(url_for('main.index'))
    return render_template('menu.html')

# Route pour la gestion des utilisateurs
@main.route('/gestion-utilisateurs', methods=['GET', 'POST'])
def gestion_utilisateurs():
    if 'user_id' not in session:
        return redirect(url_for('main.index'))
    
    if request.method == 'POST':
        action = request.form.get('action')
        user_id = request.form.get('id')
        user_actif = request.form.get('actif', '1')
        user_prenom = request.form.get('prenom')
        user_nom = request.form.get('nom')
        user_login = request.form.get('login')
        user_mail = request.form.get('mail')
        user_pass = request.form.get('pass')
        
        if action == 'creer':
            if user_pass:
                hashed_pass = generate_password_hash(user_pass)
                query = text("""
                    INSERT INTO login (login, nom, prenom, mail, pass, actif) 
                    VALUES (:login, :nom, :prenom, :mail, :pass, :actif)
                """)
                db.session.execute(query, {
                    "login": user_login,
                    "nom": user_nom,
                    "prenom": user_prenom,
                    "mail": user_mail,
                    "pass": hashed_pass,
                    "actif": user_actif
                })
                db.session.commit()
                flash("Utilisateur créé avec succès.", "success")
            else:
                flash("Le mot de passe est obligatoire pour créer un utilisateur.", "danger")
                
        elif action == 'modifier' and user_id:
            if user_pass:
                hashed_pass = generate_password_hash(user_pass)
                query = text("""
                    UPDATE login 
                    SET login = :login, nom = :nom, prenom = :prenom, mail = :mail, pass = :pass, actif = :actif 
                    WHERE id = :id
                """)
                db.session.execute(query, {
                    "id": user_id,
                    "login": user_login,
                    "nom": user_nom,
                    "prenom": user_prenom,
                    "mail": user_mail,
                    "pass": hashed_pass,
                    "actif": user_actif
                })
            else:
                query = text("""
                    UPDATE login 
                    SET login = :login, nom = :nom, prenom = :prenom, mail = :mail, actif = :actif 
                    WHERE id = :id
                """)
                db.session.execute(query, {
                    "id": user_id,
                    "login": user_login,
                    "nom": user_nom,
                    "prenom": user_prenom,
                    "mail": user_mail,
                    "actif": user_actif
                })
            db.session.commit()
            flash("Utilisateur modifié avec succès.", "success")
            
        return redirect(url_for('main.gestion_utilisateurs'))

    # Lecture exacte de la table login de votre base de données
    users_query = text("SELECT id, login, nom, prenom, mail, actif FROM login ORDER BY id ASC")
    result = db.session.execute(users_query)
    
    users = []
    for row in result:
        users.append({
            'id': row.id,
            'login': row.login if row.login else '',
            'nom': row.nom if row.nom else '',
            'prenom': row.prenom if row.prenom else '',
            'mail': row.mail if row.mail else '',
            'actif': row.actif if row.actif is not None else 1
        })

    return render_template('gestion_utilisateurs.html', users=users)

# Route pour la gestion des actions
@main.route('/gestion-actions', methods=['GET', 'POST'])
def gestion_actions():
    if 'user_id' not in session:
        return redirect(url_for('main.index'))
    
    if request.method == 'POST':
        action_type = request.form.get('action')
        # On récupère aussi l'id caché s'il s'agit d'une modification
        action_id = request.form.get('id')
        isin = request.form.get('isin')
        ticker = request.form.get('ticker')
        yahoo_code = request.form.get('yahoo_code')
        company_name = request.form.get('company_name')
        
        if action_type == 'creer':
            if isin:
                try:
                    # Vérifier si l'ISIN existe déjà
                    check_query = text("SELECT COUNT(*) FROM actions WHERE isin = :isin")
                    exists = db.session.execute(check_query, {"isin": isin}).scalar()
                    
                    if exists > 0:
                        flash("L'action existe déjà, pas de création.", "warning")
                    else:
                        # L'id s'incrémente tout seul, on ne l'inclus pas dans l'INSERT
                        query = text("""
                            INSERT INTO actions (isin, ticker, yahoo_code, company_name, updated_at) 
                            VALUES (:isin, :ticker, :yahoo_code, :company_name, NOW())
                        """)
                        db.session.execute(query, {
                            "isin": isin,
                            "ticker": ticker,
                            "yahoo_code": yahoo_code,
                            "company_name": company_name
                        })
                        db.session.commit()
                        flash("Action créée", "success")
                except Exception as e:
                    db.session.rollback()
                    flash("Erreur lors de la création de l'action.", "danger")
            else:
                flash("L'ISIN est obligatoire.", "danger")
                
        elif action_type == 'modifier' and action_id:
            try:
                # On met à jour en se basant sur l'id technique unique
                query = text("""
                    UPDATE actions 
                    SET isin = :isin, ticker = :ticker, yahoo_code = :yahoo_code, company_name = :company_name, updated_at = NOW() 
                    WHERE id = :id
                """)
                db.session.execute(query, {
                    "id": action_id,
                    "isin": isin,
                    "ticker": ticker,
                    "yahoo_code": yahoo_code,
                    "company_name": company_name
                })
                db.session.commit()
                flash("Modification effectuée", "success")
            except Exception as e:
                db.session.rollback()
                flash("Erreur lors de la modification (Vérifiez si l'ISIN n'est pas déjà utilisé par une autre ligne).", "danger")
            
        return redirect(url_for('main.gestion_actions'))

    # On sélectionne l'id en plus dans la requête
    actions_query = text("SELECT id, isin, ticker, yahoo_code, company_name, updated_at FROM actions ORDER BY company_name ASC")
    result = db.session.execute(actions_query)
    
    actions_list = []
    for row in result:
        actions_list.append({
            'id': row.id,
            'isin': row.isin if row.isin else '',
            'ticker': row.ticker if row.ticker else '',
            'yahoo_code': row.yahoo_code if row.yahoo_code else '',
            'company_name': row.company_name if row.company_name else 'Sans nom',
            'updated_at': row.updated_at.strftime('%Y-%m-%d %H:%M:%S') if row.updated_at else ''
        })

    return render_template('gestion_actions.html', actions=actions_list)


# Route pour la gestion des sociétés
@main.route('/gestion-societes', methods=['GET', 'POST'])
def gestion_societes():
    if 'user_id' not in session:
        return redirect(url_for('main.index'))
    
    if request.method == 'POST':
        action = request.form.get('action')
        soc_id = request.form.get('id')
        
        nom = request.form.get('Nom')
        forme = request.form.get('Forme')
        capital = request.form.get('Capital')
        siren = request.form.get('siren')
        siret = request.form.get('siret')
        rcs = request.form.get('RCS')
        tva = request.form.get('TVA')
        naf = request.form.get('NAF')
        tel = request.form.get('Tel')
        web = request.form.get('Web')
        mail = request.form.get('Mail')
        
        if action == 'creer':
            query = text("""
                INSERT INTO societe (Nom, Forme, Capital, siren, siret, RCS, TVA, NAF, Tel, Web, Mail) 
                VALUES (:nom, :forme, :capital, :siren, :siret, :rcs, :tva, :naf, :tel, :web, :mail)
            """)
            db.session.execute(query, {
                "nom": nom, "forme": forme, "capital": capital,
                "siren": siren, "siret": siret, "rcs": rcs,
                "tva": tva, "naf": naf, "tel": tel,
                "web": web, "mail": mail
            })
            db.session.commit()
            flash("Société créée avec succès.", "success")
                
        elif action == 'modifier' and soc_id:
            query = text("""
                UPDATE societe 
                SET Nom = :nom, Forme = :forme, Capital = :capital, siren = :siren, 
                    siret = :siret, RCS = :rcs, TVA = :tva, NAF = :naf, 
                    Tel = :tel, Web = :web, Mail = :mail 
                WHERE id = :id
            """)
            db.session.execute(query, {
                "id": soc_id, "nom": nom, "forme": forme, "capital": capital,
                "siren": siren, "siret": siret, "rcs": rcs,
                "tva": tva, "naf": naf, "tel": tel,
                "web": web, "mail": mail
            })
            db.session.commit()
            flash("Société modifiée avec succès.", "success")
            
        return redirect(url_for('main.gestion_societes'))

    # Lecture de la table societe
    societes_query = text("SELECT id, Nom, Forme, Capital, siren, siret, RCS, TVA, NAF, Tel, Web, Mail FROM societe ORDER BY id ASC")
    result = db.session.execute(societes_query)
    
    societes = []
    for row in result:
        societes.append({
            'id': row.id,
            'Nom': row.Nom if row.Nom else '',
            'Forme': row.Forme if row.Forme else '',
            'Capital': row.Capital if row.Capital is not None else 0,
            'siren': row.siren if row.siren is not None else '',
            'siret': row.siret if row.siret is not None else '',
            'RCS': row.RCS if row.RCS else '',
            'TVA': row.TVA if row.TVA else '',
            'NAF': row.NAF if row.NAF else '',
            'Tel': row.Tel if row.Tel else '',
            'Web': row.Web if row.Web else '',
            'Mail': row.Mail if row.Mail else ''
        })

    return render_template('gestion_societes.html', societes=societes)