"use client";

import { useState } from "react";
import { Calendar } from "@/components/ui/calendar";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { useLanguage } from "@/contexts/LanguageContext";
import { services, generateTimeSlots } from "@/data/services";
import { Check, Clock, CalendarDays } from "lucide-react";
import { toast } from "sonner";

export default function Booking () {
  const { t } = useLanguage();
  const [selectedService, setSelectedService] = useState<string>("");
  const [selectedDate, setSelectedDate] = useState<Date | undefined>();
  const [selectedTime, setSelectedTime] = useState<string>("");
  const [name, setName] = useState("");
  const [email, setEmail] = useState("");
  const [phone, setPhone] = useState(""); 

  const timeSlots = generateTimeSlots();
  const step = !selectedService ? 1 : !selectedDate ? 2 : !selectedTime ? 3 : 4;

  const handleConfirm = () => {
    toast.success(`${services.find((s) => s.id === selectedService)?.name} le ${selectedDate?.toLocaleDateString("fr-FR")} à ${selectedTime}`);
  };

  return (
    <div className="min-h-screen py-8 lg:py-16">
      <div className="container mx-auto px-4 lg:px-8 max-w-4xl">
        <div className="text-center mb-12">
          <CalendarDays className="h-10 w-10 mx-auto mb-4 text-primary" />
          <h1 className="font-serif text-3xl lg:text-5xl mb-3">{t("booking.title")}</h1>
          <p className="text-muted-foreground">{t("booking.subtitle")}</p>
        </div>

        {/* Progress steps */}
        <div className="flex justify-center gap-2 mb-10">
          {[1, 2, 3, 4].map((s) => (
            <div key={s} className={`h-1.5 w-12 rounded-full transition-colors ${s <= step ? "bg-primary" : "bg-muted"}`} />
          ))}
        </div>

        {/* Step 1: Service */}
        <div className="mb-10">
          <h2 className="font-serif text-xl mb-4">{t("booking.select_service")}</h2>
          <div className="grid grid-cols-1 md:grid-cols-2 gap-3">
            {services.map((service) => (
              <button
                key={service.id}
                onClick={() => setSelectedService(service.id)}
                className={`text-left p-4 rounded-lg border-2 transition-all cursor-pointer ${
                  selectedService === service.id ? "border-primary" : "border-border hover:border-primary/40"
                }`}
              >
                <div className="flex justify-between items-start">
                  <div>
                    <h3 className="font-medium text-sm">{service.name}</h3>
                    <p className="text-xs text-muted-foreground mt-1">{service.description}</p>
                    <div className="flex items-center gap-1 mt-2 text-xs text-muted-foreground">
                      <Clock className="h-3 w-3" />
                      {service.duration}
                    </div>
                  </div>
                  <span className="text-sm font-semibold">
                    {service.price === 0 ? t("booking.free") : `${service.price} €`}
                  </span>
                </div>
                {selectedService === service.id && <Check className="h-4 w-4 text-primary mt-2" />}
              </button>
            ))}
          </div>
        </div>

        {/* Step 2: Date */}
        {selectedService && (
          <div className="mb-10">
            <h2 className="font-serif text-xl mb-4">{t("booking.select_date")}</h2>
            <div className="flex justify-center">
              <Calendar
                mode="single"
                selected={selectedDate}
                onSelect={setSelectedDate}
                disabled={(date) => date < new Date() || date.getDay() === 0}
                className="rounded-lg border border-border p-4"
              />
            </div>
          </div>
        )}

        {/* Step 3: Time */}
        {selectedDate && (
          <div className="mb-10">
            <h2 className="font-serif text-xl mb-4">{t("booking.select_time")}</h2>
            <div className="grid grid-cols-4 md:grid-cols-7 gap-2">
              {timeSlots.map((slot) => (
                <button
                  key={slot.time}
                  onClick={() => slot.available && setSelectedTime(slot.time)}
                  disabled={!slot.available}
                  className={`py-2 px-3 rounded-md text-sm transition-colors cursor-pointer ${
                    selectedTime === slot.time
                      ? "bg-primary text-primary-foreground"
                      : slot.available
                      ? "bg-muted text-foreground hover:bg-accent"
                      : "bg-muted/50 text-muted-foreground/30 cursor-not-allowed"
                  }`}
                >
                  {slot.time}
                </button>
              ))}
            </div>
          </div>
        )}

        {/* Step 4: Contact info */}
        {selectedTime && (
          <div className="max-w-md mx-auto space-y-4">
            <h2 className="font-serif text-xl mb-4 text-center">{t("booking.confirm")}</h2>
            <div>
              <Label htmlFor="name">{t("auth.name")}</Label>
              <Input id="name" value={name} onChange={(e) => setName(e.target.value)} className="mt-1" />
            </div>
            <div>
              <Label htmlFor="email">{t("auth.email")}</Label>
              <Input id="email" type="email" value={email} onChange={(e) => setEmail(e.target.value)} className="mt-1" />
            </div>
            <div>
              <Label htmlFor="phone">{t("booking.phone")}</Label>
              <Input id="phone" type="tel" value={phone} onChange={(e) => setPhone(e.target.value)} className="mt-1" />
            </div>
            <Button className="w-full" size="lg" onClick={handleConfirm} disabled={!name || !email || !phone}>
              {t("booking.confirm")}
            </Button>
          </div>
        )}
      </div>
    </div>
  );
};