from flask import Blueprint, render_template, redirect, url_for, flash, request
from models import db, Assessment, ClassGroup
from forms import AssessmentForm

bp = Blueprint('assessments', __name__, url_prefix='/assessments')

@bp.route('/')
def list():
    assessments = Assessment.query.join(ClassGroup).order_by(Assessment.date.desc()).all()
    return render_template('assessments.html', assessments=assessments)

@bp.route('/new', methods=['GET', 'POST'])
def new():
    form = AssessmentForm()
    if form.validate_on_submit():
        assessment = Assessment(
            title=form.title.data,
            description=form.description.data,
            date=form.date.data,
            class_group_id=form.class_group_id.data,
            coefficient=form.coefficient.data
        )
        db.session.add(assessment)
        db.session.commit()
        flash('Évaluation créée avec succès !', 'success')
        return redirect(url_for('assessments.detail', id=assessment.id))
    return render_template('assessment_form.html', form=form, title='Nouvelle évaluation')

@bp.route('/<int:id>')
def detail(id):
    assessment = Assessment.query.get_or_404(id)
    return render_template('assessment_detail.html', assessment=assessment)

@bp.route('/<int:id>/edit', methods=['GET', 'POST'])
def edit(id):
    assessment = Assessment.query.get_or_404(id)
    form = AssessmentForm(obj=assessment)
    if form.validate_on_submit():
        assessment.title = form.title.data
        assessment.description = form.description.data
        assessment.date = form.date.data
        assessment.class_group_id = form.class_group_id.data
        assessment.coefficient = form.coefficient.data
        db.session.commit()
        flash('Évaluation modifiée avec succès !', 'success')
        return redirect(url_for('assessments.detail', id=assessment.id))
    return render_template('assessment_form.html', form=form, title='Modifier l\'évaluation', assessment=assessment)

@bp.route('/<int:id>/delete', methods=['POST'])
def delete(id):
    assessment = Assessment.query.get_or_404(id)
    db.session.delete(assessment)
    db.session.commit()
    flash('Évaluation supprimée avec succès !', 'success')
    return redirect(url_for('assessments.list'))