"use client";

import React from "react";
import { CartesianGrid, Line, LineChart, XAxis, Bar, BarChart } from "recharts";
import { CardContent } from "@/components/ui/card";
import {
  ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
  ChartLegend,
  ChartLegendContent,
} from "@/components/ui/chart";
import { formatCurrency, formatNumber } from "@/lib/utils/format";
import type { SpendingDataPoint, AnalyticsMetric } from "@/lib/types/api";

interface AnalyticsChartProps {
  data: SpendingDataPoint[];
  metrics: AnalyticsMetric[];
  chartType: "line" | "bar";
  showDataLabels?: boolean;
}

const METRIC_LABELS: Record<AnalyticsMetric, string> = {
  cost: "Расходы",
  subscriptions: "Подписки",
  views: "Просмотры",
  cpf: "CPF",
  cpm: "CPM",
};

export const AnalyticsChart: React.FC<AnalyticsChartProps> = ({
  data,
  metrics,
  chartType,
  showDataLabels = false,
}) => {
  // Создаем конфигурацию для chart
  const chartConfig: ChartConfig = metrics.reduce((acc, metric, index) => {
    acc[metric] = {
      label: METRIC_LABELS[metric],
      color: `var(--chart-${index + 1})`,
    };
    return acc;
  }, {} as ChartConfig);

  const formatValue = (value: number | null, metric: AnalyticsMetric) => {
    if (value === null) return "—";
    if (metric === "cost" || metric === "cpf" || metric === "cpm") {
      return formatCurrency(value);
    }
    return formatNumber(value);
  };

  if (chartType === "bar") {
    return (
      <CardContent className="px-2 sm:p-6">
        <ChartContainer
          config={chartConfig}
          className="aspect-auto h-[350px] w-full"
        >
          <BarChart
            accessibilityLayer
            data={data}
            margin={{
              left: 12,
              right: 12,
              top: showDataLabels ? 20 : 5,
            }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="period"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              minTickGap={32}
            />
            <ChartTooltip
              content={
                <ChartTooltipContent
                  labelFormatter={(value) => `Период: ${value}`}
                  formatter={(value, name) => [
                    formatValue(
                      value as number,
                      name as AnalyticsMetric
                    ),
                    chartConfig[name as AnalyticsMetric]?.label || name,
                  ]}
                />
              }
            />
            <ChartLegend content={<ChartLegendContent />} />
            {metrics.map((metric) => (
              <Bar
                key={metric}
                dataKey={metric}
                fill={chartConfig[metric]?.color}
                radius={4}
                label={
                  showDataLabels
                    ? {
                        position: "top",
                        formatter: (value: number) =>
                          formatValue(value, metric),
                        fontSize: 10,
                      }
                    : undefined
                }
              />
            ))}
          </BarChart>
        </ChartContainer>
      </CardContent>
    );
  }

  return (
    <CardContent className="px-2 sm:p-6">
      <ChartContainer
        config={chartConfig}
        className="aspect-auto h-[350px] w-full"
      >
        <LineChart
          accessibilityLayer
          data={data}
          margin={{
            left: 12,
            right: 12,
            top: showDataLabels ? 20 : 5,
          }}
        >
          <CartesianGrid vertical={false} />
          <XAxis
            dataKey="period"
            tickLine={false}
            axisLine={false}
            tickMargin={8}
            minTickGap={32}
          />
          <ChartTooltip
            content={
              <ChartTooltipContent
                labelFormatter={(value) => `Период: ${value}`}
                formatter={(value, name) => [
                  formatValue(
                    value as number,
                    name as AnalyticsMetric
                  ),
                  chartConfig[name as AnalyticsMetric]?.label || name,
                ]}
              />
            }
          />
          <ChartLegend content={<ChartLegendContent />} />
          {metrics.map((metric) => (
            <Line
              key={metric}
              dataKey={metric}
              type="monotone"
              stroke={chartConfig[metric]?.color}
              strokeWidth={2}
              dot={showDataLabels}
              label={
                showDataLabels
                  ? {
                      position: "top",
                      formatter: (value: number) =>
                        formatValue(value, metric),
                      fontSize: 10,
                    }
                  : undefined
              }
            />
          ))}
        </LineChart>
      </ChartContainer>
    </CardContent>
  );
};