package resources

import (
	"fmt"
	"strconv"
	"strings"
	"time"

	"git.bissendorf.co/bissendorf/unifood/m/v2/model/external/stwbremen"
	"git.bissendorf.co/bissendorf/unifood/m/v2/util"
)

type Menu struct {
	Location string
	Dishes   []Dish
}

func DishFromDTO(dish stwbremen.Dish) (*Dish, error) {
	date, err := time.Parse(time.DateOnly, dish.Date)
	if err != nil {
		return nil, fmt.Errorf("unable to parse dish date: %w", err)
	}

	return &Dish{
		Title:   dish.Title,
		Date:    date,
		Tags:    strings.Split(strings.Replace(dish.Tags, " ", "", -1), ","),
		Counter: dish.Counter,
		Prices: util.Transform(dish.Prices, func(i *stwbremen.Price) price {
			p, err := strconv.ParseFloat(strings.Trim(i.Price, " "), 32)
			if err != nil {
				p = 0
			}
			return price{
				Label: i.Label,
				Price: float32(p),
			}
		}),
		Ingredients: util.Select(util.Transform(dish.Ingredients, func(i *stwbremen.Ingredient) ingredient {
			return ingredient{
				Name:        i.Label,
				Additionals: i.Additionals,
			}
		}), func(i *ingredient) bool { return i.Name != "" }),
	}, nil
}

type Dish struct {
	Title       string
	Ingredients []ingredient
	Prices      []price
	Date        time.Time
	Counter     string
	Tags        []string
}

type ingredient struct {
	Name        string
	Additionals []string
}

type price struct {
	Label string
	Price float32
}