import re
from flask import Blueprint, render_template, request, redirect, url_for, flash, session
from app.models import Standard
from app.routes.auth import role_required

standards_bp = Blueprint('standards', __name__)

@standards_bp.route('/')
@role_required('review')
def list_standards():
    """List all standards"""
    standards = Standard.get_all()
    return render_template('standards_list.html', 
                         standards=standards,
                         user=session)

@standards_bp.route('/new')
@role_required('review')
def new_standard():
    """Display form to create new standard"""
    return render_template('standards_form.html',
                         user=session)

@standards_bp.route('/', methods=['POST'])
@role_required('review')
def create_standard():
    """Handle new standard creation"""
    try:
        # Create the standard
        standard = Standard.create(
            make=request.form['make'],
            model=request.form['model'],
            description=request.form['description'],
            uncertainty=request.form['uncertainty'],
            calibrated_on=request.form['calibrated_on'],
            calibration_due=request.form['calibration_due'],
            support_name=request.form['support_name'],
            support_email=request.form['support_email'],
            support_phone=request.form['support_phone'],
            support_address=request.form['support_address']
        )

        flash('Standard created successfully', 'success')
        return redirect(url_for('standards.list_standards'))
    except Exception as e:
        flash(f'Error creating standard: {str(e)}', 'danger')
        return redirect(url_for('standards.new_standard'))

@standards_bp.route('/<standard_id>')
@role_required('review')
def view_standard(standard_id):
    """View details of a single standard"""
    standard = Standard.get_by_id(standard_id)
    if not standard:
        flash('Standard not found', 'danger')
        return redirect(url_for('standards.list_standards'))
    
    return render_template('standards_view.html', 
                         standard=standard,
                         user=session)