'use client';

import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from '@/components/ui/select';
import { Button } from '@/components/ui/button';
import { Infinity } from 'lucide-react';
import type { AnimationConfig } from '@/types/animate';

interface Props {
  config: AnimationConfig;
  onChange: (config: AnimationConfig) => void;
}

const EASINGS = [
  { value: 'linear', label: 'Linear' },
  { value: 'ease', label: 'Ease' },
  { value: 'ease-in', label: 'Ease In' },
  { value: 'ease-out', label: 'Ease Out' },
  { value: 'ease-in-out', label: 'Ease In Out' },
  { value: 'cubic-bezier', label: 'Cubic Bézier' },
  { value: 'steps(4, end)', label: 'Steps (4)' },
  { value: 'steps(8, end)', label: 'Steps (8)' },
];

export function AnimationSettings({ config, onChange }: Props) {
  const set = <K extends keyof AnimationConfig>(key: K, value: AnimationConfig[K]) =>
    onChange({ ...config, [key]: value });

  const isInfinite = config.iterationCount === 'infinite';
  const isCubic = config.easing === 'cubic-bezier';

  // Parse cubic-bezier values from string like "cubic-bezier(x1,y1,x2,y2)"
  const cubicValues = (() => {
    const m = config.easing.match(/cubic-bezier\(([^)]+)\)/);
    if (!m) return [0.25, 0.1, 0.25, 1.0];
    return m[1].split(',').map(Number);
  })();

  const setCubic = (index: number, val: number) => {
    const v = [...cubicValues];
    v[index] = val;
    set('easing', `cubic-bezier(${v.join(',')})`);
  };

  return (
    <Card className="h-full">
      <CardHeader>
        <CardTitle>Settings</CardTitle>
      </CardHeader>
      <CardContent className="space-y-4">
        {/* Name */}
        <div className="space-y-1.5">
          <Label className="text-xs">Name</Label>
          <Input
            value={config.name}
            onChange={(e) => {
              const val = e.target.value.replace(/\s+/g, '-').replace(/[^a-zA-Z0-9-_]/g, '');
              set('name', val || 'myAnimation');
            }}
            className="font-mono text-xs"
          />
        </div>

        {/* Duration + Delay */}
        <div className="grid grid-cols-2 gap-3">
          <div className="space-y-1.5">
            <Label className="text-xs">Duration</Label>
            <div className="flex items-center gap-1">
              <Input
                type="number"
                min={50}
                max={10000}
                step={50}
                value={config.duration}
                onChange={(e) => set('duration', Math.max(50, Number(e.target.value)))}
               
              />
              <span className="text-xs text-muted-foreground shrink-0">ms</span>
            </div>
          </div>
          <div className="space-y-1.5">
            <Label className="text-xs">Delay</Label>
            <div className="flex items-center gap-1">
              <Input
                type="number"
                min={0}
                max={5000}
                step={50}
                value={config.delay}
                onChange={(e) => set('delay', Math.max(0, Number(e.target.value)))}
               
              />
              <span className="text-xs text-muted-foreground shrink-0">ms</span>
            </div>
          </div>
        </div>

        {/* Easing */}
        <div className="space-y-1.5">
          <Label className="text-xs">Easing</Label>
          <Select
            value={isCubic ? 'cubic-bezier' : config.easing}
            onValueChange={(v) => {
              if (v === 'cubic-bezier') {
                set('easing', 'cubic-bezier(0.25,0.1,0.25,1)');
              } else {
                set('easing', v);
              }
            }}
          >
            <SelectTrigger className="w-full">
              <SelectValue />
            </SelectTrigger>
            <SelectContent>
              {EASINGS.map((e) => (
                <SelectItem key={e.value} value={e.value}>
                  {e.label}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>
        </div>

        {/* Cubic-bezier inputs */}
        {isCubic && (
          <div className="space-y-1.5">
            <Label className="text-xs text-muted-foreground">cubic-bezier(P1x, P1y, P2x, P2y)</Label>
            <div className="grid grid-cols-4 gap-1.5">
              {(['P1x', 'P1y', 'P2x', 'P2y'] as const).map((label, i) => (
                <div key={label} className="space-y-0.5">
                  <Label className="text-[10px] text-muted-foreground">{label}</Label>
                  <Input
                    type="number"
                    min={i % 2 === 0 ? 0 : -1}
                    max={i % 2 === 0 ? 1 : 2}
                    step={0.01}
                    value={cubicValues[i] ?? 0}
                    onChange={(e) => setCubic(i, Number(e.target.value))}
                    className="text-xs px-1.5"
                  />
                </div>
              ))}
            </div>
          </div>
        )}

        {/* Iteration */}
        <div className="space-y-1.5">
          <Label className="text-xs">Iterations</Label>
          <div className="flex items-center gap-2">
            <Input
              type="number"
              min={1}
              max={999}
              value={isInfinite ? '' : config.iterationCount}
              disabled={isInfinite}
              onChange={(e) => set('iterationCount', Math.max(1, Number(e.target.value)))}
              className="text-xs flex-1"
              placeholder="1"
            />
            <Button
              size="icon-xs"
              variant={isInfinite ? 'default' : 'outline'}
              onClick={() =>
                set('iterationCount', isInfinite ? 1 : 'infinite')
              }
              title="Toggle infinite"
            >
              <Infinity className="h-3 w-3" />
            </Button>
          </div>
        </div>

        {/* Direction */}
        <div className="space-y-1.5">
          <Label className="text-xs">Direction</Label>
          <Select value={config.direction} onValueChange={(v) => set('direction', v as AnimationConfig['direction'])}>
            <SelectTrigger className="w-full">
              <SelectValue />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="normal">Normal</SelectItem>
              <SelectItem value="reverse">Reverse</SelectItem>
              <SelectItem value="alternate">Alternate</SelectItem>
              <SelectItem value="alternate-reverse">Alternate Reverse</SelectItem>
            </SelectContent>
          </Select>
        </div>

        {/* Fill Mode */}
        <div className="space-y-1.5">
          <Label className="text-xs">Fill Mode</Label>
          <Select value={config.fillMode} onValueChange={(v) => set('fillMode', v as AnimationConfig['fillMode'])}>
            <SelectTrigger className="w-full">
              <SelectValue />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="none">None</SelectItem>
              <SelectItem value="forwards">Forwards</SelectItem>
              <SelectItem value="backwards">Backwards</SelectItem>
              <SelectItem value="both">Both</SelectItem>
            </SelectContent>
          </Select>
        </div>
      </CardContent>
    </Card>
  );
}