"use client";

import MoneyValues from "@/components/money-values";
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
import { WidgetEmptyState } from "@/components/widget-empty-state";
import type { TopEstabelecimentosData } from "@/lib/top-estabelecimentos/fetch-data";
import {
  buildCategoryInitials,
  getCategoryBgColor,
  getCategoryColor,
} from "@/lib/utils/category-colors";
import { getIconComponent } from "@/lib/utils/icons";
import { title_font } from "@/public/fonts/font_index";
import { RiPriceTag3Line } from "@remixicon/react";
import { Progress } from "../ui/progress";

type TopCategoriesProps = {
  categories: TopEstabelecimentosData["topCategories"];
};

export function TopCategories({ categories }: TopCategoriesProps) {
  if (categories.length === 0) {
    return (
      <Card className="h-full">
        <CardHeader className="pb-3">
          <CardTitle
            className={`${title_font.className} flex items-center gap-1.5 text-base`}
          >
            <RiPriceTag3Line className="size-4 text-primary" />
            Principais Categorias
          </CardTitle>
        </CardHeader>
        <CardContent>
          <WidgetEmptyState
            icon={<RiPriceTag3Line className="size-6 text-muted-foreground" />}
            title="Nenhuma categoria encontrada"
            description="Quando houver despesas categorizadas, elas aparecerão aqui."
          />
        </CardContent>
      </Card>
    );
  }

  const totalAmount = categories.reduce((acc, c) => acc + c.totalAmount, 0);

  return (
    <Card className="h-full">
      <CardHeader className="pb-3">
        <CardTitle
          className={`${title_font.className} flex items-center gap-1.5 text-base`}
        >
          <RiPriceTag3Line className="size-4 text-primary" />
          Principais Categorias
        </CardTitle>
      </CardHeader>
      <CardContent className="pt-0">
        <div className="flex flex-col">
          {categories.map((category, index) => {
            const IconComponent = category.icon
              ? getIconComponent(category.icon)
              : null;
            const color = getCategoryColor(index);
            const bgColor = getCategoryBgColor(index);
            const initials = buildCategoryInitials(category.name);
            const percent =
              totalAmount > 0 ? (category.totalAmount / totalAmount) * 100 : 0;

            return (
              <div
                key={category.id}
                className="flex flex-col py-2 border-b border-dashed last:border-0"
              >
                <div className="flex items-center justify-between gap-3">
                  <div className="flex min-w-0 flex-1 items-center gap-2">
                    <div
                      className="flex size-10 shrink-0 items-center justify-center overflow-hidden rounded-lg"
                      style={{ backgroundColor: bgColor }}
                    >
                      {IconComponent ? (
                        <IconComponent className="size-4" style={{ color }} />
                      ) : (
                        <span
                          className="text-xs font-semibold uppercase"
                          style={{ color }}
                        >
                          {initials}
                        </span>
                      )}
                    </div>

                    {/* Name and percentage */}
                    <div className="min-w-0 flex-1">
                      <span className="text-sm font-medium truncate block">
                        {category.name}
                      </span>
                      <span className="text-xs text-muted-foreground">
                        {percent.toFixed(0)}% do total •{" "}
                        {category.transactionCount}x
                      </span>
                    </div>
                  </div>

                  {/* Value */}
                  <div className="flex shrink-0 flex-col items-end">
                    <MoneyValues
                      className="text-foreground"
                      amount={category.totalAmount}
                    />
                  </div>
                </div>

                {/* Progress bar */}
                <div className="ml-12 mt-1.5">
                  <Progress className="h-1.5" value={percent} />
                </div>
              </div>
            );
          })}
        </div>
      </CardContent>
    </Card>
  );
}