"use client";

import Image from "next/image";
import { useApp } from "@/contexts/AppContext";
import { ProductDetail } from "@/lib/api/fundmarket";

interface OverviewItemProps {
  icon: string;
  label: string;
  value: string;
}

function OverviewItem({ icon, label, value }: OverviewItemProps) {
  return (
    <div className="flex flex-col gap-1 md:flex-row md:items-center md:justify-between w-full">
      <div className="flex items-center gap-1">
        <div className="w-5 h-5 flex-shrink-0">
          <Image src={icon} alt={label} width={20} height={20} />
        </div>
        <span className="text-xs font-medium leading-[150%] text-[#9ca1af] dark:text-gray-400">
          {label}
        </span>
      </div>
      <span className="text-sm font-semibold leading-[150%] text-[#111827] dark:text-white pl-6 md:pl-0">
        {value}
      </span>
    </div>
  );
}

interface AssetOverviewCardProps {
  product: ProductDetail;
  vaultInfo?: any[];
  isVaultLoading?: boolean;
  vaultTimedOut?: boolean;
}

export default function AssetOverviewCard({
  product,
  vaultInfo,
  isVaultLoading,
  vaultTimedOut,
}: AssetOverviewCardProps) {
  const { t } = useApp();

  const hasContract = !!product.contractAddress;
  const vaultReady = !hasContract || vaultInfo !== undefined || vaultTimedOut;
  const loading = hasContract && isVaultLoading && !vaultTimedOut;

  // nextRedemptionTime: getVaultInfo[8]
  const nextRedemptionTime = vaultInfo ? Number(vaultInfo[8]) : 0;
  const maturityDisplay = (() => {
    if (loading) return '...';
    if (!nextRedemptionTime) return '--';
    return new Date(nextRedemptionTime * 1000).toLocaleDateString('en-GB', {
      day: '2-digit', month: 'short', year: 'numeric',
    });
  })();

  // ytPrice: getVaultInfo[7], 30 decimals
  const ytPriceRaw: bigint = vaultInfo ? (vaultInfo[7] as bigint) ?? 0n : 0n;
  const currentPriceDisplay = (() => {
    if (loading) return '...';
    if (!ytPriceRaw || ytPriceRaw <= 0n) return '--';
    const divisor = 10n ** 30n;
    const intPart = ytPriceRaw / divisor;
    const fracScaled = ((ytPriceRaw % divisor) * 1_000_000n) / divisor;
    return `$${intPart}.${fracScaled.toString().padStart(6, '0')}`;
  })();

  // Pool Capacity %: totalSupply[4] / hardCap[5]
  const totalSupplyRaw: bigint = vaultInfo ? (vaultInfo[4] as bigint) ?? 0n : 0n;
  const hardCapRaw: bigint     = vaultInfo ? (vaultInfo[5] as bigint) ?? 0n : 0n;
  const livePoolCapPercent = (vaultReady && hardCapRaw > 0n)
    ? Math.min((Number(totalSupplyRaw) / Number(hardCapRaw)) * 100, 100)
    : null;
  const displayPoolCapPercent = livePoolCapPercent !== null
    ? livePoolCapPercent
    : vaultReady ? product.poolCapacityPercent : null;
  const poolCapDisplay = !vaultReady
    ? '...'
    : `${(displayPoolCapPercent ?? 0).toFixed(4)}%`;

  // Format USD values
  const formatUSD = (value: number) => {
    if (value >= 1000000) return `$${(value / 1000000).toFixed(1)}M`;
    if (value >= 1000)    return `$${(value / 1000).toFixed(1)}K`;
    return `$${value.toFixed(2)}`;
  };

  // Risk badge
  const getRiskColor = (riskLevel: number) => {
    switch (riskLevel) {
      case 1: return { bg: "#e1f8ec", border: "#b8ecd2", color: "#10b981" };
      case 2: return { bg: "#fffbf5", border: "#ffedd5", color: "#ffb933" };
      case 3: return { bg: "#fee2e2", border: "#fecaca", color: "#ef4444" };
      default: return { bg: "#fffbf5", border: "#ffedd5", color: "#ffb933" };
    }
  };
  const riskColors = getRiskColor(product.riskLevel);

  const getRiskBars = () => {
    const bars = [
      { height: 5,  active: product.riskLevel >= 1 },
      { height: 7,  active: product.riskLevel >= 2 },
      { height: 11, active: product.riskLevel >= 3 },
    ];
    return bars.map((bar, i) => (
      <div
        key={i}
        className="w-[3px] rounded-sm flex-shrink-0"
        style={{
          height: `${bar.height}px`,
          backgroundColor: bar.active ? riskColors.color : '#d1d5db',
        }}
      />
    ));
  };

  return (
    <div
      className="bg-white dark:bg-gray-800 border border-[#f3f4f6] dark:border-gray-700 flex flex-col rounded-2xl md:rounded-3xl p-4 md:p-8 gap-5 md:gap-6"
    >
      {/* Header */}
      <div className="flex items-center justify-between w-full">
        <h3 className="text-lg font-bold leading-[150%] text-[#111827] dark:text-white">
          {t("assetOverview.title")}
        </h3>
        <div
          className="rounded-full border flex items-center"
          style={{
            backgroundColor: riskColors.bg,
            borderColor: riskColors.border,
            padding: '6px 12px',
            gap: '8px',
          }}
        >
          <div
            className="rounded-full flex-shrink-0"
            style={{ backgroundColor: riskColors.color, width: '6px', height: '6px' }}
          />
          <span className="text-xs font-semibold leading-4" style={{ color: riskColors.color }}>
            {product.riskLabel}
          </span>
          <div className="flex items-end gap-[2px]">{getRiskBars()}</div>
        </div>
      </div>

      {/* Overview Items - 2 per row */}
      <div className="flex flex-col w-full" style={{ gap: '16px' }}>
        <div className="grid grid-cols-2 gap-x-4 gap-y-5 w-full">
          <OverviewItem
            icon="/components/product/component-11.svg"
            label={t("assetOverview.underlyingAssets")}
            value={product.underlyingAssets}
          />
          <OverviewItem
            icon="/components/product/component-12.svg"
            label={t("assetOverview.maturityRange")}
            value={maturityDisplay}
          />
          <OverviewItem
            icon="/components/product/component-13.svg"
            label={t("assetOverview.cap")}
            value={formatUSD(product.poolCapUsd)}
          />
          <OverviewItem
            icon="/components/product/component-15.svg"
            label={t("assetOverview.poolCapacity")}
            value={poolCapDisplay}
          />
        </div>
        {/* Progress Bar - full width */}
        <div
          className="w-full bg-[#f3f4f6] dark:bg-gray-600 rounded-full overflow-hidden"
          style={{ height: '10px' }}
        >
          <div
            className="h-full rounded-full transition-all duration-500"
            style={{
              width: `${displayPoolCapPercent ?? 0}%`,
              background: 'linear-gradient(90deg, #1447e6 0%, #032bbd 100%)',
            }}
          />
        </div>
      </div>

      {/* Divider */}
      <div className="w-full border-t border-[#f3f4f6] dark:border-gray-700" style={{ height: '1px' }} />

      {/* Current Price */}
      <div
        className="bg-[#f9fafb] dark:bg-gray-700 border border-[#f3f4f6] dark:border-gray-600 flex flex-col md:flex-row items-center justify-center md:justify-between gap-2 w-full"
        style={{ borderRadius: '16px', padding: '16px' }}
      >
        <div className="flex items-center" style={{ gap: '12px' }}>
          <div className="w-5 h-6 flex-shrink-0">
            <Image src="/components/product/component-16.svg" alt="Price" width={20} height={24} />
          </div>
          <span
            className="text-sm font-medium uppercase"
            style={{ color: '#4b5563', letterSpacing: '0.7px', lineHeight: '20px' }}
          >
            {t("assetOverview.currentPrice")}
          </span>
        </div>
        <div className="text-xl font-bold leading-[140%]">
          <span className="text-[#111827] dark:text-white">1 {product.tokenSymbol} = </span>
          <span style={{ color: "#10b981" }}>{currentPriceDisplay}</span>
        </div>
      </div>
    </div>
  );
}