"use client";

import { useState } from "react";
import { useRouter } from "next/navigation";
import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";
import { z } from "zod";
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
  DialogFooter,
  DialogTrigger,
} from "@/components/ui/dialog";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Textarea } from "@/components/ui/textarea";
import { Button } from "@/components/ui/button";
import { useToast } from "@/components/ui/use-toast";

const schema = z.object({
  company: z.string().min(1, "Company name is required"),
  contactPerson: z.string().min(1, "Contact person is required"),
  email: z.string().email("Invalid email address"),
  phone: z.string().optional(),
  notes: z.string().optional(),
});

type FormValues = z.infer<typeof schema>;

interface NewClientDialogProps {
  children: React.ReactNode;
}

export function NewClientDialog({ children }: NewClientDialogProps) {
  const [open, setOpen] = useState(false);
  const [loading, setLoading] = useState(false);
  const router = useRouter();
  const { toast } = useToast();

  const {
    register,
    handleSubmit,
    reset,
    formState: { errors },
  } = useForm<FormValues>({
    resolver: zodResolver(schema),
    defaultValues: { company: "", contactPerson: "", email: "", phone: "", notes: "" },
  });

  const onSubmit = async (values: FormValues) => {
    setLoading(true);
    try {
      const res = await fetch("/api/clients", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(values),
      });
      if (!res.ok) {
        const error = await res.json().catch(() => ({}));
        throw new Error(error.error ?? "Failed to create client");
      }
      const data = await res.json();
      toast({ title: `Client "${data.company}" created` });
      setOpen(false);
      reset();
      router.refresh();
    } catch (e) {
      toast({
        title: "Failed to create client",
        description: e instanceof Error ? e.message : undefined,
        variant: "destructive",
      });
    } finally {
      setLoading(false);
    }
  };

  return (
    <Dialog open={open} onOpenChange={setOpen}>
      <DialogTrigger asChild>{children}</DialogTrigger>
      <DialogContent className="sm:max-w-md">
        <DialogHeader>
          <DialogTitle>New Client</DialogTitle>
        </DialogHeader>
        <form onSubmit={handleSubmit(onSubmit)} className="space-y-4">
          <div className="space-y-1.5">
            <Label htmlFor="company">Company *</Label>
            <Input id="company" placeholder="Acme Productions" {...register("company")} />
            {errors.company && <p className="text-xs text-red-400">{errors.company.message}</p>}
          </div>
          <div className="space-y-1.5">
            <Label htmlFor="contactPerson">Contact Person *</Label>
            <Input id="contactPerson" placeholder="Jane Smith" {...register("contactPerson")} />
            {errors.contactPerson && <p className="text-xs text-red-400">{errors.contactPerson.message}</p>}
          </div>
          <div className="space-y-1.5">
            <Label htmlFor="email">Email *</Label>
            <Input id="email" type="email" placeholder="jane@acme.com" {...register("email")} />
            {errors.email && <p className="text-xs text-red-400">{errors.email.message}</p>}
          </div>
          <div className="space-y-1.5">
            <Label htmlFor="phone">Phone</Label>
            <Input id="phone" type="tel" placeholder="+1 (555) 000-0000" {...register("phone")} />
          </div>
          <div className="space-y-1.5">
            <Label htmlFor="notes">Notes</Label>
            <Textarea id="notes" placeholder="Any additional information..." className="resize-none" rows={3} {...register("notes")} />
          </div>
          <DialogFooter>
            <Button type="button" variant="outline" onClick={() => setOpen(false)}>
              Cancel
            </Button>
            <Button type="submit" disabled={loading}>
              {loading ? "Creating..." : "Create Client"}
            </Button>
          </DialogFooter>
        </form>
      </DialogContent>
    </Dialog>
  );
}