veza/apps/web/src/components/analytics/TrackAnalyticsView.tsx

import React from 'react';
import { Card } from '../ui/card';
import { Button } from '../ui/button';
import { StatCard } from '../dashboard/StatCard';
import {
  Play,
  SkipForward,
  Clock,
  Users,
  Map,
  ArrowLeft,
  Download,
} from 'lucide-react';
import { useToast } from '../../components/feedback/ToastProvider';

interface TrackAnalyticsViewProps {
  trackId: string;
  onBack: () => void;
}

export const TrackAnalyticsView: React.FC<TrackAnalyticsViewProps> = ({
  trackId: _trackId,
  onBack,
}) => {
  const { addToast } = useToast();

  // Mock Track Data
  const trackData = {
    title: 'Neon Nights',
    artist: 'Cyber_Producer',
    plays: 15420,
    skips: 320,
    avgListen: '2:45', // vs 3:45 total
    completion: 78,
    demographics: { '18-24': 45, '25-34': 30, '35+': 25 },
    geo: [
      { country: 'USA', percent: 40 },
      { country: 'Japan', percent: 25 },
      { country: 'Germany', percent: 15 },
      { country: 'UK', percent: 10 },
    ],
  };

  return (
    <div className="space-y-8 animate-fadeIn pb-20">
      <div className="flex items-center justify-between mb-6">
        <div className="flex items-center gap-4">
          <Button variant="ghost" size="icon" onClick={onBack}>
            <ArrowLeft className="w-5 h-5" />
          </Button>
          <div>
            <h2 className="text-2xl font-bold text-foreground">{trackData.title}</h2>
            <p className="text-muted-foreground text-sm">Analytics Report</p>
          </div>
        </div>
        <Button
          variant="secondary"
          icon={<Download className="w-4 h-4" />}
          onClick={() => addToast('Report downloaded')}
        >
          Export CSV
        </Button>
      </div>

      {/* Key Metrics */}
      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
        <StatCard
          label="Total Plays"
          value={trackData.plays.toLocaleString()}
          icon={<Play className="w-5 h-5" />}
          color="cyan"
          trend={12}
          sparklineData={[10, 15, 12, 20, 25, 30, 28, 35, 40]}
        />
        <StatCard
          label="Completion Rate"
          value={`${trackData.completion}%`}
          icon={<Clock className="w-5 h-5" />}
          color="lime"
          trend={2.5}
        />
        <StatCard
          label="Skip Rate"
          value={`${((trackData.skips / trackData.plays) * 100).toFixed(1)}%`}
          icon={<SkipForward className="w-5 h-5" />}
          color="red"
          trend={-0.5} // Negative is good for skip rate, logic in StatCard handles green/red based on +/-. might need tweak for inverse metrics
        />
        <StatCard
          label="Avg Listen Time"
          value={trackData.avgListen}
          icon={<Users className="w-5 h-5" />}
          color="gold"
        />
      </div>

      <div className="grid grid-cols-1 lg:grid-cols-2 gap-8">
        {/* Plays Over Time Graph Placeholder */}
        <Card variant="default">
          <h3 className="font-bold text-foreground mb-6">
            Plays Over Time (30 Days)
          </h3>
          <div className="h-64 flex items-end gap-2 px-4 pb-4">
            {Array.from({ length: 30 }).map((_, i) => {
              const h = Math.random() * 100;
              return (
                <div
                  key={i}
                  className="flex-1 bg-muted/20 hover:bg-muted/50 transition-colors rounded-t relative group"
                  style={{ height: `${h}%` }}
                >
                  <div className="absolute bottom-full left-1/2 -translate-x-1/2 mb-2 bg-background text-foreground text-xs px-2 py-1 rounded opacity-0 group-hover:opacity-100 pointer-events-none">
                    {Math.floor(h * 10)} plays
                  </div>
                </div>
              );
            })}
          </div>
        </Card>

        {/* Demographics & Geo */}
        <div className="space-y-6">
          <Card variant="default">
            <h3 className="font-bold text-foreground mb-4 flex items-center gap-2">
              <Map className="w-4 h-4 text-destructive" /> Top Locations
            </h3>
            <div className="space-y-4">
              {trackData.geo.map((g) => (
                <div key={g.country} className="flex items-center gap-4">
                  <div className="w-16 text-sm text-muted-foreground">{g.country}</div>
                  <div className="flex-1 h-2 bg-muted rounded-full overflow-hidden">
                    <div
                      className="h-full bg-destructive"
                      style={{ width: `${g.percent}%` }}
                    ></div>
                  </div>
                  <div className="w-12 text-right text-sm font-bold text-foreground">
                    {g.percent}%
                  </div>
                </div>
              ))}
            </div>
          </Card>

          <Card variant="default">
            <h3 className="font-bold text-foreground mb-4 flex items-center gap-2">
              <Users className="w-4 h-4 text-warning" /> Listeners Age
            </h3>
            <div className="flex gap-2 h-8">
              {Object.entries(trackData.demographics).map(([range, val]) => (
                <div
                  key={range}
                  className="h-full first:rounded-l last:rounded-r relative group"
                  style={{
                    width: `${val}%`,
                    backgroundColor:
                      range === '18-24'
                        ? 'var(--sumi-viz-indigo)'
                        : range === '25-34'
                          ? 'var(--sumi-viz-sage)'
                          : 'var(--sumi-bg-hover)',
                  }}
                >
                  <div className="absolute inset-0 flex items-center justify-center text-xs font-bold text-foreground opacity-0 group-hover:opacity-100 transition-opacity">
                    {range}
                  </div>
                </div>
              ))}
            </div>
            <div className="flex justify-between text-xs text-muted-foreground mt-2">
              {Object.entries(trackData.demographics).map(([range, val]) => (
                <span key={range}>
                  {range}: {val}%
                </span>
              ))}
            </div>
          </Card>
        </div>
      </div>
    </div>
  );
};