"use client";

import { useState } from "react";
import { CircleAlert, CircleCheck } from "lucide-react";
import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import {
  NativeSelect,
  NativeSelectOption,
} from "@/components/ui/native-select";
import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group";
import { Textarea } from "@/components/ui/textarea";
import { business, links } from "@/lib/site";
import { trackEvent } from "@/lib/analytics";

const FORM_ACTION = "https://form.taxi/s/es9ddva1";

const devices = ["Laptop", "Desktop PC", "Mac", "Chromebook", "PlayStation or Xbox", "Other"];
const problems = [
  "Won't turn on or won't start",
  "Cracked or broken screen",
  "Running slow / upgrade",
  "Virus, pop-ups or scam",
  "Battery or charging",
  "Moving files to a new computer",
  "Windows 10 / Windows 11",
  "Business IT support",
  "Something else",
];
const contactMethods = ["Call", "Text", "Email"];

function Field({ children }) {
  return <div className="grid gap-2">{children}</div>;
}

// Submits to form.taxi with JavaScript for an inline success message; without
// JavaScript the form still posts normally.
export default function ContactForm() {
  const [status, setStatus] = useState("idle");

  async function handleSubmit(event) {
    event.preventDefault();
    setStatus("sending");
    try {
      const response = await fetch(FORM_ACTION, {
        method: "POST",
        headers: { Accept: "application/json" },
        body: new FormData(event.currentTarget),
      });
      const result = await response.json().catch(() => ({}));
      if (!response.ok || !result.success) throw new Error("Submit failed");
      setStatus("sent");
      trackEvent("submit_quote_form");
    } catch {
      setStatus("error");
    }
  }

  if (status === "sent") {
    return (
      <Alert role="status" className="border-primary">
        <CircleCheck aria-hidden="true" />
        <AlertTitle>Thanks, I&apos;ve got it</AlertTitle>
        <AlertDescription>
          <p>
            I&apos;ll usually reply the same day during business hours (Monday
            to Friday, 9am to 6pm). If it&apos;s urgent, call or text{" "}
            <a href={links.tel} className="font-semibold text-primary underline">
              {business.phone}
            </a>
            .
          </p>
        </AlertDescription>
      </Alert>
    );
  }

  return (
    <div>
      <h2 className="text-3xl font-bold mb-2">Get a quote</h2>
      <p className="mb-6 text-muted-foreground">
        Tell me what&apos;s going on and I&apos;ll get back to you, usually the
        same day during business hours.
      </p>
      <form
        action={FORM_ACTION}
        method="POST"
        className="grid gap-5"
        onSubmit={handleSubmit}
      >
        <Field>
          <Label htmlFor="cf-name">Name*</Label>
          <Input id="cf-name" name="Name" autoComplete="name" required />
        </Field>

        <div className="grid gap-5 sm:grid-cols-2">
          <Field>
            <Label htmlFor="cf-email">Email*</Label>
            <Input
              id="cf-email"
              type="email"
              name="Email"
              autoComplete="email"
              required
            />
          </Field>
          <Field>
            <Label htmlFor="cf-phone">Phone number</Label>
            <Input id="cf-phone" type="tel" name="Phone" autoComplete="tel" />
          </Field>
        </div>

        <fieldset className="grid gap-3">
          <legend className="mb-3 text-sm font-medium">
            Best way to reach you
          </legend>
          <RadioGroup
            name="Preferred contact"
            defaultValue="Email"
            className="flex gap-6"
          >
            {contactMethods.map((method) => (
              <div key={method} className="flex items-center gap-2">
                <RadioGroupItem value={method} id={`cf-contact-${method}`} />
                <Label htmlFor={`cf-contact-${method}`} className="font-normal">
                  {method}
                </Label>
              </div>
            ))}
          </RadioGroup>
        </fieldset>

        <div className="grid gap-5 sm:grid-cols-2">
          <Field>
            <Label htmlFor="cf-device">Device</Label>
            <NativeSelect
              id="cf-device"
              name="Device"
              defaultValue="Laptop"
              wrapperClassName="w-full"
              className="text-base md:text-sm"
            >
              {devices.map((device) => (
                <NativeSelectOption key={device}>{device}</NativeSelectOption>
              ))}
            </NativeSelect>
          </Field>
          <Field>
            <Label htmlFor="cf-problem">Problem</Label>
            <NativeSelect
              id="cf-problem"
              name="Problem"
              defaultValue=""
              wrapperClassName="w-full"
              className="text-base md:text-sm"
            >
              <NativeSelectOption value="" disabled>
                Choose one
              </NativeSelectOption>
              {problems.map((problem) => (
                <NativeSelectOption key={problem}>{problem}</NativeSelectOption>
              ))}
            </NativeSelect>
          </Field>
        </div>

        <Field>
          <Label htmlFor="cf-message">What&apos;s going on?*</Label>
          <Textarea
            id="cf-message"
            name="Message"
            rows={5}
            placeholder="e.g. HP laptop, screen cracked in the corner, still turns on"
            required
          />
        </Field>

        {/* Honeypot: hidden from people, filled in by bots. Enable "_gotcha" in form.taxi's Spam Shield. */}
        <input
          type="text"
          name="_gotcha"
          className="hidden"
          tabIndex={-1}
          autoComplete="off"
          aria-hidden="true"
        />

        <p className="text-sm text-muted-foreground">
          * required.
        </p>

        {status === "error" && (
          <Alert variant="destructive" role="alert">
            <CircleAlert aria-hidden="true" />
            <AlertTitle>That didn&apos;t send</AlertTitle>
            <AlertDescription>
              Please try again, or call or text {business.phone}.
            </AlertDescription>
          </Alert>
        )}

        <Button
          type="submit"
          size="lg"
          disabled={status === "sending"}
          className="justify-self-start"
        >
          {status === "sending" ? "Sending…" : "Send"}
        </Button>
      </form>
    </div>
  );
}