"use client";

import React from "react"

import { useEffect, useState } from "react";
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Textarea } from "@/components/ui/textarea";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import type { Product } from "@/lib/types";

interface ProductDialogProps {
  open: boolean;
  onOpenChange: (open: boolean) => void;
  product: Product | null;
  onSave: (data: Partial<Product>) => Promise<void>;
}

export function ProductDialog({
  open,
  onOpenChange,
  product,
  onSave,
}: ProductDialogProps) {
  const [loading, setLoading] = useState(false);
  const [form, setForm] = useState({
    name: "",
    sku: "",
    description: "",
    version: "1.0",
    status: "draft",
  });

  useEffect(() => {
    if (product) {
      setForm({
        name: product.name || "",
        sku: product.sku || "",
        description: product.description || "",
        version: product.version || "1.0",
        status: product.status || "draft",
      });
    } else {
      setForm({
        name: "",
        sku: "",
        description: "",
        version: "1.0",
        status: "draft",
      });
    }
  }, [product, open]);

  async function handleSubmit(e: React.FormEvent) {
    e.preventDefault();
    setLoading(true);
    try {
      await onSave(form);
      onOpenChange(false);
    } finally {
      setLoading(false);
    }
  }

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="max-w-lg">
        <DialogHeader>
          <DialogTitle>
            {product ? "Edit Product" : "Add New Product"}
          </DialogTitle>
        </DialogHeader>
        <form onSubmit={handleSubmit} className="flex flex-col gap-4 pt-2">
          <div className="grid grid-cols-2 gap-4">
            <div className="flex flex-col gap-2">
              <Label htmlFor="prod_name">Product Name *</Label>
              <Input
                id="prod_name"
                value={form.name}
                onChange={(e) => setForm({ ...form, name: e.target.value })}
                placeholder="e.g. Sensor Board v2"
                required
              />
            </div>
            <div className="flex flex-col gap-2">
              <Label htmlFor="sku">SKU *</Label>
              <Input
                id="sku"
                value={form.sku}
                onChange={(e) => setForm({ ...form, sku: e.target.value })}
                placeholder="e.g. SB-V2-001"
                className="font-mono"
                required
              />
            </div>
          </div>

          <div className="flex flex-col gap-2">
            <Label htmlFor="prod_desc">Description</Label>
            <Textarea
              id="prod_desc"
              value={form.description}
              onChange={(e) =>
                setForm({ ...form, description: e.target.value })
              }
              placeholder="Product description..."
              rows={2}
            />
          </div>

          <div className="grid grid-cols-2 gap-4">
            <div className="flex flex-col gap-2">
              <Label htmlFor="version">Version</Label>
              <Input
                id="version"
                value={form.version}
                onChange={(e) => setForm({ ...form, version: e.target.value })}
                placeholder="1.0"
              />
            </div>
            <div className="flex flex-col gap-2">
              <Label htmlFor="status">Status</Label>
              <Select
                value={form.status}
                onValueChange={(val) => setForm({ ...form, status: val })}
              >
                <SelectTrigger>
                  <SelectValue />
                </SelectTrigger>
                <SelectContent>
                  <SelectItem value="draft">Draft</SelectItem>
                  <SelectItem value="active">Active</SelectItem>
                  <SelectItem value="deprecated">Deprecated</SelectItem>
                  <SelectItem value="archived">Archived</SelectItem>
                </SelectContent>
              </Select>
            </div>
          </div>

          <div className="flex justify-end gap-2 pt-2">
            <Button
              type="button"
              variant="outline"
              onClick={() => onOpenChange(false)}
            >
              Cancel
            </Button>
            <Button type="submit" disabled={loading}>
              {loading ? "Saving..." : product ? "Update" : "Create"}
            </Button>
          </div>
        </form>
      </DialogContent>
    </Dialog>
  );
}