'use client'

import Link from 'next/link'
import { useSearchParams } from 'next/navigation'
import { ArrowLeft, ChevronDown, RefreshCw, BellPlus } from 'lucide-react'
import { Suspense, useState, useEffect } from 'react'
import { SentimentalityBar } from '@/components/widgets/SentimentalityBar'
import { getLiveQuote, formatMarketValue, type MappedQuote } from '@/lib/stockApi'
import { StockChart } from '@/components/stock-chart/stock-chart'
import { NewsHeadlines } from '@/components/widgets/NewsHeadlines'
import { AlertsModal } from '@/components/widgets/AlertsModal'
import type { TimeRange } from '@/components/stock-chart/types'

function SymbolDetailsContent() {
  const searchParams = useSearchParams()
  const symbol = (searchParams.get('symbol') || 'AAPL').toUpperCase()
  const [chartExpanded, setChartExpanded] = useState(true)
  const [headlinesExpanded, setHeadlinesExpanded] = useState(true)
  const [selectedRange, setSelectedRange] = useState<TimeRange>('1D')
  const [quote, setQuote] = useState<MappedQuote | null>(null)
  const [loading, setLoading] = useState(true)
  const [error, setError] = useState<string | null>(null)
  const [refreshTick, setRefreshTick] = useState(0)
  const [avgSentiment, setAvgSentiment] = useState<number | null>(null)
  const [alertsModalOpen, setAlertsModalOpen] = useState(false)

  useEffect(() => {
    setLoading(true)
    setError(null)
    getLiveQuote(symbol)
      .then(setQuote)
      .catch((err) => setError(err.message))
      .finally(() => setLoading(false))
  }, [symbol, refreshTick])

  return (
    <div className="h-full flex flex-col">
      {/* Header */}
      <div className="bg-background border-b border-border px-6 py-4 flex items-center gap-4">
        <Link href="/interests" className="p-2 hover:bg-secondary transition-colors">
          <ArrowLeft size={20} />
        </Link>
        <h1 className="text-2xl font-bold">{symbol}</h1>
      </div>

      {/* Loading / Error states */}
      {loading && (
        <div className="flex-1 flex items-center justify-center text-muted-foreground">
          Loading {symbol}...
        </div>
      )}
      {!loading && error && (
        <div className="flex-1 flex items-center justify-center text-negative">
          {error}
        </div>
      )}

      {!loading && !error && quote && (
        <div className="flex-1 overflow-y-auto">
          <div className="p-6 space-y-6 max-w-5xl">
            {/* Stock Summary Card */}
            <div className="border border-border bg-card p-6 space-y-6">
              {/* Card header row with refresh button */}
              <div className="flex items-start justify-between pb-4 border-b border-border space-y-3">
                <div className="space-y-3 flex-1">
                  <div className="text-lg font-semibold">{quote.symbol}</div>

                  <div className="flex items-baseline gap-4">
                    <div className="text-4xl font-bold">${quote.lastPrice.toFixed(2)}</div>
                    <div className={
                      quote.priceChange > 0 ? 'text-positive'
                      : quote.priceChange < 0 ? 'text-negative'
                      : 'text-foreground'
                    }>
                      <div className="font-semibold">
                        {quote.priceChange > 0 ? '+' : ''}${quote.priceChange.toFixed(2)}
                      </div>
                      <div className="text-sm">
                        ({quote.priceChange > 0 ? '+' : ''}{quote.percentChange.toFixed(2)}%)
                      </div>
                    </div>
                  </div>
                </div>

                <div className="flex items-center gap-1">
                  <button
                    onClick={() => setAlertsModalOpen(true)}
                    className="p-2 hover:bg-secondary transition-colors text-muted-foreground"
                    title="Configure alerts"
                  >
                    <BellPlus size={16} />
                  </button>
                  <button
                    onClick={() => setRefreshTick((t) => t + 1)}
                    disabled={loading}
                    className="p-2 hover:bg-secondary transition-colors disabled:opacity-40 text-muted-foreground"
                    title="Refresh quote"
                  >
                    <RefreshCw size={16} className={loading ? 'animate-spin' : ''} />
                  </button>
                </div>
              </div>

              {/* Key Metrics */}
              <div className="grid grid-cols-2 gap-4 pb-4 border-b border-border">
                <div className="space-y-2">
                  <div className="text-xs text-muted-foreground">Open</div>
                  <div className="font-semibold">
                    {formatMarketValue(quote.openPrice, quote.marketOpen, (v) => `$${v.toFixed(2)}`)}
                  </div>
                </div>
                <div className="space-y-2">
                  <div className="text-xs text-muted-foreground">Prev Close</div>
                  <div className="font-semibold">${quote.previousClose.toFixed(2)}</div>
                </div>
                <div className="space-y-2 col-span-2">
                  <div className="text-xs text-muted-foreground">Volume</div>
                  <div className="font-semibold">
                    {formatMarketValue(quote.volume, quote.marketOpen, (v) => v.toLocaleString())}
                  </div>
                </div>
              </div>

              {/* Sentimentality Bar - average of headline sentiments */}
              <SentimentalityBar sentiment={avgSentiment ?? 50} />
            </div>

            {/* Chart Section - Collapsible */}
            <div className="border border-border">
              <button
                onClick={() => setChartExpanded(!chartExpanded)}
                className="w-full flex items-center justify-between bg-card p-4 hover:bg-secondary transition-colors"
              >
                <span className="font-semibold">Chart</span>
                <ChevronDown size={20} className={`transition-transform ${chartExpanded ? 'rotate-180' : ''}`} />
              </button>
              {chartExpanded && (
                <div className="bg-card border-t border-border">
                  {/* Range selector */}
                  <div className="flex border-b border-border">
                    {(['1D', '5D', '1M', '3M', '6M', 'YTD', '1Y', '3Y'] as TimeRange[]).map((r) => (
                      <button
                        key={r}
                        onClick={() => setSelectedRange(r)}
                        className={`flex-1 py-2 text-xs font-medium transition-colors
                          ${selectedRange === r
                            ? 'bg-primary text-primary-foreground'
                            : 'text-muted-foreground hover:text-foreground hover:bg-secondary'
                          }`}
                      >
                        {r}
                      </button>
                    ))}
                  </div>

                  {/* Chart */}
		  <div className="p-4">
                    <StockChart symbol={symbol} range={selectedRange} />
                  </div>                  

                  <div className="px-4 pb-4">
                    <Link
                      href={`/complex-chart?symbol=${symbol}`}
                      className="block w-full text-center bg-primary text-primary-foreground p-3 hover:bg-blue-700 transition-colors font-medium"
                    >
                      Show more
                    </Link>
                  </div>
                </div>
              )}
            </div>

            {/* Headlines Section - Collapsible */}
            <div className="border border-border">
              <button
                onClick={() => setHeadlinesExpanded(!headlinesExpanded)}
                className="w-full flex items-center justify-between bg-card p-4 hover:bg-secondary transition-colors"
              >
                <span className="font-semibold">Headlines</span>
                <ChevronDown size={20} className={`transition-transform ${headlinesExpanded ? 'rotate-180' : ''}`} />
              </button>
              {headlinesExpanded && (
                <div className="bg-card border-t border-border">
                  <div className="p-4">
                    <NewsHeadlines keyword={symbol} onAverageSentiment={setAvgSentiment} />
                  </div>
                </div>
              )}
            </div>
          </div>
        </div>
      )}

      <AlertsModal
        open={alertsModalOpen}
        onOpenChange={setAlertsModalOpen}
        symbol={symbol}
      />
    </div>
  )
}

export default function SymbolDetails() {
  return (
    <Suspense fallback={
      <div className="h-full flex items-center justify-center bg-background">
        <div className="text-muted-foreground">Loading...</div>
      </div>
    }>
      <SymbolDetailsContent />
    </Suspense>
  )
}