// modules/admin/components/user_groups/AddGroupDialog.jsx

import { useForm } from "react-hook-form";
import { z } from "zod";
import { zodResolver } from "@hookform/resolvers/zod";

import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
  DialogFooter,
  DialogClose,
} from "@/components/ui/dialog";
import { Input }    from "@/components/ui/input";
import { Textarea } from "@/components/ui/textarea";
import { Button }   from "@/components/ui/button";
import { Label }    from "@/components/ui/label";

const schema = z.object({
  name:        z.string().min(1, "Name is required."),
  description: z.string().min(1, "Description is required."),
});

/**
 * Dialog for creating a new group.
 * Matches context: createGroup({ name, description })
 *
 * @param {Object}   props
 * @param {boolean}  props.open
 * @param {Function} props.onOpenChange
 * @param {Function} props.onSubmit      Called with { name, description }
 * @param {boolean}  [props.loading]
 */
export function AddGroupDialog({ open, onOpenChange, onSubmit, loading }) {
  const {
    register,
    handleSubmit,
    reset,
    formState: { errors },
  } = useForm({
    resolver:      zodResolver(schema),
    defaultValues: { name: "", description: "" },
  });

  async function onValid(values) {
    await onSubmit(values);
    reset();
  }

  function handleClose() {
    reset();
    onOpenChange(false);
  }

  return (
    <Dialog open={open} onOpenChange={handleClose}>
      <DialogContent className="sm:max-w-[440px]">
        <DialogHeader>
          <DialogTitle>Add group</DialogTitle>
        </DialogHeader>

        <form onSubmit={handleSubmit(onValid)} className="space-y-4">
          <div className="space-y-1.5">
            <Label htmlFor="name">
              Name <span className="text-destructive">*</span>
            </Label>
            <Input
              id="name"
              placeholder="Group name"
              {...register("name")}
            />
            {errors.name && (
              <p className="text-sm text-destructive">{errors.name.message}</p>
            )}
          </div>

          <div className="space-y-1.5">
            <Label htmlFor="description">
              Description <span className="text-destructive">*</span>
            </Label>
            <Textarea
              id="description"
              placeholder="Brief description of this group"
              className="resize-none"
              rows={3}
              {...register("description")}
            />
            {errors.description && (
              <p className="text-sm text-destructive">{errors.description.message}</p>
            )}
          </div>

          <DialogFooter>
            <DialogClose asChild>
              <Button type="button" variant="outline" disabled={loading}>Cancel</Button>
            </DialogClose>
            <Button type="submit" disabled={loading}>
              {loading ? "Creating..." : "Add group"}
            </Button>
          </DialogFooter>
        </form>
      </DialogContent>
    </Dialog>
  );
}