"use client";

import { Card, CardContent, CardHeader, CardTitle } from "@/components/common/card";
import { Skeleton } from "@/components/common/skeleton";
import { Area, AreaChart, ResponsiveContainer, Tooltip, TooltipProps } from "recharts";
import { TrendIndicator } from "./TrendIndicator";
import { cn } from "@/lib/utils";
import { LucideIcon } from "lucide-react";
import { formatGBP } from "@/lib/utils/format";

interface ChartDataPoint {
    formattedDate: string;
    value: number;
    orders?: number;
    revenue?: number;
    [key: string]: any;
}

interface AdminStatCardProps {
    title: string;
    icon: LucideIcon;
    iconColorClass: string;
    iconBgClass: string;
    value: string | number;
    subtext?: React.ReactNode;
    trend?: {
        current: number;
        previous: number;
    };
    loading?: boolean;
    chartData?: ChartDataPoint[];
    chartColor: string;
    chartGradientId: string;
    tooltipPrefix?: string; // "£" or ""
    hideChart?: boolean;
    children?: React.ReactNode;
}

const CustomTooltip = ({ active, payload, label, prefix = "" }: TooltipProps<any, any> & { prefix?: string }) => {
    if (active && payload && payload.length) {
        const data = payload[0].payload;
        return (
            <div className="bg-[#050505]/90 p-3 rounded-lg shadow-xl border border-white/10 backdrop-blur-md ring-1 ring-white/5">
                <p className="font-bold text-[10px] uppercase tracking-wide text-muted-foreground mb-2 border-b border-white/5 pb-1">
                    {data.formattedDate || label}
                </p>
                <div className="flex items-center justify-between gap-4">
                    <span className="text-[11px] font-semibold text-primary">
                        {prefix === "£" ? "Revenue" : "Count"}
                    </span>
                    <span className="text-[11px] font-bold text-foreground tabular-nums">
                        {prefix}{prefix === "£" ? (data.value || 0).toFixed(2) : data.value}
                    </span>
                </div>
            </div>
        );
    }
    return null;
};

export function AdminStatCard({
    title,
    icon: Icon,
    iconColorClass,
    iconBgClass,
    value,
    subtext,
    trend,
    loading,
    chartData,
    chartColor,
    chartGradientId,
    tooltipPrefix = "",
    hideChart = false,
    children,
}: AdminStatCardProps) {
    if (loading) {
        return (
            <Card className="border-border/40 bg-background/50 backdrop-blur-sm shadow-sm overflow-hidden h-full">
                <CardHeader className="pb-2">
                    <div className="flex justify-between items-start">
                        <Skeleton className="h-4 w-24" />
                        <Skeleton className="h-8 w-8 rounded-md" />
                    </div>
                </CardHeader>
                <CardContent>
                    <Skeleton className="h-8 w-32 mb-2" />
                    <div className="flex items-center gap-2 mb-4">
                        <Skeleton className="h-4 w-20" />
                        <Skeleton className="h-4 w-12 ml-auto" />
                    </div>
                    {!hideChart && <Skeleton className="h-14 w-full rounded-md" />}
                </CardContent>
            </Card>
        );
    }

    return (
        <Card className="border-border/40 bg-background/50 backdrop-blur-sm shadow-sm overflow-hidden hover:shadow-md transition-shadow duration-300 h-full flex flex-col">
            <CardHeader className="pb-2">
                <div className="flex justify-between items-start">
                    <CardTitle className="text-sm font-medium text-muted-foreground">
                        {title}
                    </CardTitle>
                    <div className={cn("p-2 rounded-md", iconBgClass)}>
                        <Icon className={cn("h-4 w-4", iconColorClass)} />
                    </div>
                </div>
            </CardHeader>
            <CardContent className="flex-1 flex flex-col">
                <div className="text-2xl font-bold">{value}</div>

                <div className="flex items-center text-xs text-muted-foreground mt-1">
                    {subtext}
                    {trend && (
                        <div className="ml-auto">
                            <TrendIndicator current={trend.current} previous={trend.previous} />
                        </div>
                    )}
                </div>

                {children && <div className="mt-2">{children}</div>}

                {!hideChart && (
                    chartData && chartData.length > 0 ? (
                        <div className="mt-auto pt-4 h-[72px] -mx-2">
                            <ResponsiveContainer width="100%" height="100%">
                                <AreaChart
                                    data={chartData}
                                    margin={{ top: 5, right: 0, left: 0, bottom: 0 }}
                                >
                                    <defs>
                                        <linearGradient id={chartGradientId} x1="0" y1="0" x2="0" y2="1">
                                            <stop offset="5%" stopColor={chartColor} stopOpacity={0.3} />
                                            <stop offset="95%" stopColor={chartColor} stopOpacity={0} />
                                        </linearGradient>
                                    </defs>
                                    <Area
                                        type="monotone"
                                        dataKey="value"
                                        stroke={chartColor}
                                        fillOpacity={1}
                                        fill={`url(#${chartGradientId})`}
                                        strokeWidth={2}
                                        activeDot={{ r: 4, strokeWidth: 0, fill: chartColor }}
                                    />
                                    <Tooltip
                                        content={<CustomTooltip prefix={tooltipPrefix} />}
                                        cursor={{ stroke: 'rgba(255,255,255,0.1)', strokeWidth: 1 }}
                                    />
                                </AreaChart>
                            </ResponsiveContainer>
                        </div>
                    ) : (
                        <div className="mt-4 h-14 flex items-center justify-center text-xs text-muted-foreground bg-muted/20 rounded">
                            No chart data
                        </div>
                    )
                )}

                {/* Fill space if chart is hidden but we want structure consistency */}
                {hideChart && <div className="mt-auto pt-4" />}
            </CardContent>
        </Card>
    );
}