"""Sigl Products View Blueprint.

Simple Grocery List (Sigl) | sigl.app
Copyright (c) 2022 Asymworks, LLC.  All Rights Reserved.
"""

from flask import Blueprint, flash, redirect, render_template, request, url_for

from sigl.database import db
from sigl.domain.service import (
    list_stores,
    product_addLocation,
    product_by_id,
    product_create,
    product_delete,
    product_removeLocation,
    product_update,
    products_all,
)
from sigl.exc import Error, NotFoundError

__all__ = ('bp', )


#: Lists Blueprint
bp = Blueprint('products', __name__)


@bp.route('/products')
def home():
    """All Products View."""
    products = products_all(db.session)
    groups = dict()
    for product in products:
        cat = 'No Category'
        if product.category:
            cat = product.category

        if cat not in groups:
            groups[cat] = [product]
        else:
            groups[cat].append(product)

    return render_template('products/home.html.j2', products=products, groups=groups)


@bp.route('/products/new', methods=('GET', 'POST'))
def create():
    """Create a new Product."""
    if request.method == 'POST':
        product_name = request.form['name'].strip()
        product_category = request.form['category'].strip()
        product_notes = request.form['notes'].strip()
        if not product_name:
            flash('Error: Product Name is required')
            return render_template('products/create.html.j2')

        product = product_create(
            db.session,
            product_name,
            category=product_category,
            notes=product_notes,
        )
        return redirect(url_for('products.detail', id=product.id))
    return render_template('products/create.html.j2')


@bp.route('/products/<int:id>', methods=('GET', 'POST'))
def detail(id):
    """Product Detail/Editing View."""
    try:
        product = product_by_id(db.session, id)
        if not product:
            raise NotFoundError(f'Product {id} not found')

    except Error as e:
        flash(str(e), 'error')
        return redirect(url_for('products.home'))

    if request.method == 'POST':
        try:
            name = request.form['name'].strip()
            category = request.form['category'].strip()
            notes = request.form['notes'].strip()

            product_update(
                db.session,
                id,
                name,
                category,
                notes,
            )

            return redirect(url_for('products.home'))

        except Error as e:
            flash(str(e), 'error')

    return render_template(
        'products/detail.html.j2',
        product=product,
        stores=list_stores(db.session, None),
    )


@bp.route('/products/<int:id>/delete', methods=('POST', ))
def delete(id):
    """Delete a Product."""
    try:
        product_delete(db.session, id)
    except Error as e:
        flash(str(e), 'error')

    return redirect(url_for('products.home'))


@bp.route('/products/<int:id>/addLocation', methods=('POST', ))
def addLocation(id):
    """Add a Location to a Product."""
    store = request.form['store'].strip()
    aisle = request.form['aisle'].strip()
    bin = request.form['bin'].strip()

    try:
        product_addLocation(db.session, id, store, aisle=aisle, bin=bin)
    except Error as e:
        flash(str(e), 'error')

    return redirect(url_for('products.detail', id=id))


@bp.route('/products/<int:id>/removeLocation', methods=('POST', ))
def removeLocation(id):
    """Remove a Location from a Product."""
    store = request.form['store'].strip()
    print(request.form)

    try:
        product_removeLocation(db.session, id, store)
    except Error as e:
        flash(str(e), 'error')

    return redirect(url_for('products.detail', id=id))