"use client";

import { useState } from "react";
import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";
import { z } from "zod";
import { UsersOverview } from "./columns";
import { updateUser } from "@/actions/user";
import { Button } from "@/components/ui/button";
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog";
import {
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form";
import { Input } from "@/components/ui/input";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import { toast } from "sonner";

const userEditSchema = z.object({
  firstName: z.string().min(1, "Vorname ist erforderlich"),
  lastName: z.string().min(1, "Nachname ist erforderlich"),
  email: z.string().email("Ungültige E-Mail-Adresse"),
  role: z.enum(["user", "admin"], { required_error: "Rolle ist erforderlich" }),
  customer_id: z.string().uuid().optional().or(z.literal("")),
});

type UserEditFormData = z.infer<typeof userEditSchema>;

interface UserEditFormProps {
  user: UsersOverview | null | undefined;
  open: boolean;
  onOpenChange: (open: boolean) => void;
}

export function UserEditForm({ user, open, onOpenChange }: UserEditFormProps) {
  const [isSubmitting, setIsSubmitting] = useState(false);

  const form = useForm<UserEditFormData>({
    resolver: zodResolver(userEditSchema),
    defaultValues: {
      firstName: user?.firstName || "",
      lastName: user?.lastName || "",
      email: user?.email || "",
      role: (user?.role as "user" | "admin") || "user",
      customer_id: user?.customerId || "",
    },
  });

  const onSubmit = async (data: UserEditFormData) => {
    if (!user) return;
    setIsSubmitting(true);
    try {
      await updateUser({
        id: user.id,
        data: {
          firstname: data.firstName,
          lastname: data.lastName,
          email: data.email,
          role: data.role,
          customer_id: data.customer_id || undefined,
        },
      });
      toast.success("Benutzer erfolgreich aktualisiert");
      onOpenChange(false);
    } catch (error) {
      toast.error("Fehler beim Aktualisieren des Benutzers");
    } finally {
      setIsSubmitting(false);
    }
  };

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="sm:max-w-[425px]">
        <DialogHeader>
          <DialogTitle>Benutzer bearbeiten</DialogTitle>
          <DialogDescription>
            Aktualisieren Sie die Informationen des Benutzers.
          </DialogDescription>
        </DialogHeader>
        <Form {...form}>
          <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-4">
            <FormField
              control={form.control}
              name="firstName"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Vorname</FormLabel>
                  <FormControl>
                    <Input placeholder="Vorname" {...field} />
                  </FormControl>
                  <FormMessage />
                </FormItem>
              )}
            />
            <FormField
              control={form.control}
              name="lastName"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Nachname</FormLabel>
                  <FormControl>
                    <Input placeholder="Nachname" {...field} />
                  </FormControl>
                  <FormMessage />
                </FormItem>
              )}
            />
            <FormField
              control={form.control}
              name="email"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>E-Mail</FormLabel>
                  <FormControl>
                    <Input
                      type="email"
                      placeholder="benutzer@example.com"
                      {...field}
                    />
                  </FormControl>
                  <FormMessage />
                </FormItem>
              )}
            />
            <FormField
              control={form.control}
              name="role"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Rolle</FormLabel>
                  <Select
                    onValueChange={field.onChange}
                    defaultValue={field.value}
                  >
                    <FormControl>
                      <SelectTrigger>
                        <SelectValue placeholder="Rolle auswählen" />
                      </SelectTrigger>
                    </FormControl>
                    <SelectContent>
                      <SelectItem value="user">Benutzer</SelectItem>
                      <SelectItem value="staff">Mitarbeiter</SelectItem>
                      <SelectItem value="admin">Administrator</SelectItem>
                    </SelectContent>
                  </Select>
                  <FormMessage />
                </FormItem>
              )}
            />
            <FormField
              control={form.control}
              name="customer_id"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Kunden-ID (optional)</FormLabel>
                  <FormControl>
                    <Input placeholder="UUID" {...field} />
                  </FormControl>
                  <FormMessage />
                </FormItem>
              )}
            />
            <div className="flex justify-end gap-2">
              <Button
                type="button"
                variant="outline"
                onClick={() => onOpenChange(false)}
                disabled={isSubmitting}
              >
                Abbrechen
              </Button>
              <Button type="submit" disabled={isSubmitting}>
                {isSubmitting ? "Speichern..." : "Speichern"}
              </Button>
            </div>
          </form>
        </Form>
      </DialogContent>
    </Dialog>
  );
}