package main

import (
	"fmt"
	"regexp"
	"strings"

	"github.com/gocolly/colly"
)

const (
	cheeseboardURL = "https://cheeseboardcollective.coop/pizza/"
)

var (
	boilerPlateParBake      = regexp.MustCompile(`Parbake pizza is available in the bakery from \d a.m. to \d p.m., while supplies last.`)
	boilerPlateParBakeLunch = regexp.MustCompile(`Parbake pizza is available in the bakery from \d a.m. to \d p.m..Lunch from 1\d:30-\d:30 and dinner from \d-\d.`)
	boilerPlateNoHotPizza   = regexp.MustCompile(`No hot pizza today.`)
	cheeseboardIsClosed     = regexp.MustCompile(`The Pizzeria is closed today`)
)

type Pizza struct {
	Date     string
	Toppings string
}

func main() {
	c := colly.NewCollector()

	c.OnRequest(func(r *colly.Request) {
		fmt.Println("Visiting", r.URL)
	})

	var pizzas []Pizza

	c.OnHTML("div.pizza-list", func(e *colly.HTMLElement) {
		e.ForEach("article", func(c int, el *colly.HTMLElement) {
			var pizza Pizza
			pizza.Date = el.ChildText("div.date")
			toppings := el.ChildText("div.menu > p:nth-child(2)")
			if cheeseboardIsClosed.MatchString(toppings) {
				return
			}
			toppings = boilerPlateParBake.ReplaceAllString(toppings, "")
			toppings = boilerPlateParBakeLunch.ReplaceAllString(toppings, "")
			toppings = boilerPlateNoHotPizza.ReplaceAllString(toppings, "")
			toppings = strings.TrimLeft(toppings, " ")
			pizza.Toppings = toppings
			pizzas = append(pizzas, pizza)
		})
	})

	c.Visit(cheeseboardURL)
	for _, pizza := range pizzas {
		fmt.Printf("%s: %s\n", pizza.Date, pizza.Toppings)
	}
}