/**
 * 廠商詳細資訊頁面
 */

import { useState } from "react";
import { Phone, Mail, Plus, ArrowLeft } from "lucide-react";
import { Label } from "../ui/label";
import { Button } from "../ui/button";
import {
  AlertDialog,
  AlertDialogAction,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogTitle,
} from "../ui/alert-dialog";
import SupplyProductList from "./SupplyProductList";
import AddSupplyProductDialog from "./AddSupplyProductDialog";
import EditSupplyProductDialog from "./EditSupplyProductDialog";
import type { Supplier, SupplyProduct } from "../../types/vendor";
import type { Product } from "../../types/product";

interface VendorDetailProps {
  supplier: Supplier;
  products: Product[];
  onBack: () => void;
  onAddSupplyProduct: (supplierId: string, productId: string, lastPrice?: number) => void;
  onUpdateSupplyProduct: (supplierId: string, productId: string, lastPrice?: number) => void;
  onRemoveSupplyProduct: (supplierId: string, productId: string) => void;
}

export default function VendorDetail({
  supplier,
  products,
  onBack,
  onAddSupplyProduct,
  onUpdateSupplyProduct,
  onRemoveSupplyProduct,
}: VendorDetailProps) {
  const [showAddDialog, setShowAddDialog] = useState(false);
  const [showEditDialog, setShowEditDialog] = useState(false);
  const [showRemoveDialog, setShowRemoveDialog] = useState(false);
  const [selectedProduct, setSelectedProduct] = useState<SupplyProduct | null>(null);

  const handleAddProduct = (productId: string, lastPrice?: number) => {
    onAddSupplyProduct(supplier.id, productId, lastPrice);
    setShowAddDialog(false);
  };

  const handleEditProduct = (product: SupplyProduct) => {
    setSelectedProduct(product);
    setShowEditDialog(true);
  };

  const handleUpdateProduct = (productId: string, lastPrice?: number) => {
    onUpdateSupplyProduct(supplier.id, productId, lastPrice);
    setShowEditDialog(false);
    setSelectedProduct(null);
  };

  const handleRemoveProduct = (product: SupplyProduct) => {
    setSelectedProduct(product);
    setShowRemoveDialog(true);
  };

  const handleConfirmRemove = () => {
    if (selectedProduct) {
      onRemoveSupplyProduct(supplier.id, selectedProduct.productId);
    }
    setShowRemoveDialog(false);
    setSelectedProduct(null);
  };

  return (
    <div className="p-6">
      {/* 返回按鈕 */}
      <div className="mb-6">
        <Button
          variant="outline"
          onClick={onBack}
          className="gap-2 button-outlined-primary mb-6"
        >
          <ArrowLeft className="h-4 w-4" />
          返回廠商列表
        </Button>
        <h1>廠商詳細資訊</h1>
        <p className="body-sm text-muted-foreground mt-2">
          查看並管理供應商的詳細資料與供貨商品
        </p>
      </div>

      {/* 基本資料 */}
      <div className="bg-card rounded-lg border border-border p-6 mb-6">
        <h3 className="mb-4">基本資料</h3>
        <div className="grid grid-cols-2 gap-6">
          <div>
            <Label className="text-muted-foreground text-xs">廠商名稱</Label>
            <p className="mt-1">{supplier.name}</p>
          </div>
          <div>
            <Label className="text-muted-foreground text-xs">聯絡人</Label>
            <p className="mt-1">{supplier.contact || "-"}</p>
          </div>
          <div>
            <Label className="text-muted-foreground text-xs">聯絡電話</Label>
            <p className="mt-1 flex items-center gap-2">
              <Phone className="h-3 w-3 text-muted-foreground" />
              {supplier.phone || "-"}
            </p>
          </div>
          <div>
            <Label className="text-muted-foreground text-xs">Email</Label>
            <p className="mt-1 flex items-center gap-2">
              <Mail className="h-3 w-3 text-muted-foreground" />
              {supplier.email || "-"}
            </p>
          </div>
        </div>
      </div>

      {/* 供貨商品列表 */}
      <div className="bg-card rounded-lg border border-border p-6">
        <div className="flex items-center justify-between mb-4">
          <h3>供貨商品</h3>
          <Button
            onClick={() => setShowAddDialog(true)}
            className="gap-2 button-filled-primary"
            size="sm"
          >
            <Plus className="h-4 w-4" />
            新增供貨商品
          </Button>
        </div>
        <SupplyProductList
          products={supplier.supplyProducts}
          onEdit={handleEditProduct}
          onRemove={handleRemoveProduct}
        />
      </div>

      {/* 新增供貨商品對話框 */}
      <AddSupplyProductDialog
        open={showAddDialog}
        products={products}
        existingSupplyProducts={supplier.supplyProducts}
        onClose={() => setShowAddDialog(false)}
        onAdd={handleAddProduct}
      />

      {/* 編輯供貨商品對話框 */}
      <EditSupplyProductDialog
        open={showEditDialog}
        product={selectedProduct}
        onClose={() => {
          setShowEditDialog(false);
          setSelectedProduct(null);
        }}
        onSave={handleUpdateProduct}
      />

      {/* 取消供貨確認對話框 */}
      <AlertDialog open={showRemoveDialog} onOpenChange={setShowRemoveDialog}>
        <AlertDialogContent>
          <AlertDialogHeader>
            <AlertDialogTitle>確認取消供貨</AlertDialogTitle>
            <AlertDialogDescription>
              確定要將「{selectedProduct?.productName}」從供貨列表中移除嗎？此操作無法撤銷。
            </AlertDialogDescription>
          </AlertDialogHeader>
          <AlertDialogFooter>
            <AlertDialogCancel
              size="sm"
              className="gap-2 button-outlined-primary"
            >
              取消
            </AlertDialogCancel>
            <AlertDialogAction
              size="sm"
              className="gap-2 button-filled-error"
              onClick={handleConfirmRemove}
            >
              確認移除
            </AlertDialogAction>
          </AlertDialogFooter>
        </AlertDialogContent>
      </AlertDialog>
    </div>
  );
}