"use client";

import { memo, useMemo } from "react";
import { Handle, Position, NodeProps } from "@xyflow/react";
import { Badge } from "@/components/ui/badge";

export interface PageNodeData {
    title: string;
    status: "draft" | "ready" | "review";
    content?: string;
    notes?: string;
    hasAttachments?: boolean;
    hasLinks?: boolean;
    [key: string]: unknown;
}

const statusConfig = {
    draft: {
        label: "Szkic",
        className: "bg-yellow-500/20 text-yellow-400 border-yellow-500/30",
    },
    ready: {
        label: "Gotowe",
        className: "bg-green-500/20 text-green-400 border-green-500/30",
    },
    review: {
        label: "Do poprawki",
        className: "bg-red-500/20 text-red-400 border-red-500/30",
    },
};

// Different styles for node types
const nodeTypeConfig = {
    page: {
        bgClass: "bg-slate-800/90",
        borderClass: "border-slate-600",
        selectedBorderClass: "border-blue-500",
        accentColor: "blue",
        icon: (
            <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
            </svg>
        ),
        label: "Strona",
    },
    note: {
        bgClass: "bg-amber-900/40",
        borderClass: "border-amber-600/50",
        selectedBorderClass: "border-amber-400",
        accentColor: "amber",
        icon: (
            <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" />
            </svg>
        ),
        label: "Notatka",
    },
    section: {
        bgClass: "bg-purple-900/40",
        borderClass: "border-purple-600/50",
        selectedBorderClass: "border-purple-400",
        accentColor: "purple",
        icon: (
            <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
            </svg>
        ),
        label: "Sekcja",
    },
};

function CustomNode({ data, selected, type }: NodeProps) {
    const nodeData = data as PageNodeData;
    const status = statusConfig[nodeData.status] || statusConfig.draft;
    const nodeType = nodeTypeConfig[type as keyof typeof nodeTypeConfig] || nodeTypeConfig.page;

    const hasContent = useMemo(() => {
        return nodeData.hasAttachments || nodeData.hasLinks;
    }, [nodeData.hasAttachments, nodeData.hasLinks]);

    const handleColorClass = nodeType.accentColor === "amber"
        ? "!bg-amber-500"
        : nodeType.accentColor === "purple"
            ? "!bg-purple-500"
            : "!bg-blue-500";

    return (
        <div
            className={`
        ${nodeType.bgClass} backdrop-blur-sm border-2 rounded-xl shadow-xl
        min-w-[180px] max-w-[240px] transition-all duration-200
        ${selected ? `${nodeType.selectedBorderClass} shadow-${nodeType.accentColor}-500/25` : `${nodeType.borderClass} hover:border-opacity-80`}
      `}
        >
            {/* Top Handle */}
            <Handle
                type="target"
                position={Position.Top}
                className={`!w-3 !h-3 ${handleColorClass} !border-2 !border-slate-800`}
            />

            {/* Type indicator */}
            <div className={`px-3 py-1.5 border-b border-white/10 flex items-center gap-2 text-${nodeType.accentColor}-400`}>
                {nodeType.icon}
                <span className="text-xs font-medium opacity-70">{nodeType.label}</span>
            </div>

            {/* Content */}
            <div className="p-4">
                <div className="flex items-start justify-between gap-2 mb-2">
                    <h3 className="font-semibold text-white text-sm leading-tight line-clamp-2">
                        {nodeData.title || "Nowa strona"}
                    </h3>
                    {hasContent && (
                        <div className="flex-shrink-0">
                            <svg
                                className={`w-4 h-4 text-${nodeType.accentColor}-400`}
                                fill="none"
                                stroke="currentColor"
                                viewBox="0 0 24 24"
                            >
                                <path
                                    strokeLinecap="round"
                                    strokeLinejoin="round"
                                    strokeWidth={2}
                                    d="M15.172 7l-6.586 6.586a2 2 0 102.828 2.828l6.414-6.586a4 4 0 00-5.656-5.656l-6.415 6.585a6 6 0 108.486 8.486L20.5 13"
                                />
                            </svg>
                        </div>
                    )}
                </div>

                <Badge variant="outline" className={`text-xs ${status.className}`}>
                    {status.label}
                </Badge>
            </div>

            {/* Bottom Handle */}
            <Handle
                type="source"
                position={Position.Bottom}
                className={`!w-3 !h-3 ${handleColorClass} !border-2 !border-slate-800`}
            />
        </div>
    );
}

export default memo(CustomNode);