// effects.js — Shared effect presets for background system
// Depends on backgroundEngine.js being loaded first

(function(engine) {
  if (!engine) return;

  // Pre-configured effect presets that themes can reference by name
  engine.effectPresets = {
    starfield:    { type: 'stars',     count: 120, color: '#FFFFFF' },
    starfieldDense:{ type: 'stars',    count: 250, color: '#FFFFFF' },
    starfieldSparse:{ type: 'stars',   count: 40,  color: '#FFFFFF' },
    lightRain:    { type: 'rain',      count: 60,  color: '#AACCEE' },
    heavyRain:    { type: 'rain',      count: 200, color: '#8899BB' },
    lightSnow:    { type: 'snow',      count: 40,  color: '#FFFFFF' },
    heavySnow:    { type: 'snow',      count: 150, color: '#E8E8F0' },
    floatingDust: { type: 'dust',      count: 30,  color: '#DDDDAA' },
    embers:       { type: 'particles', count: 25,  color: '#FF8844' },
    sparkle:      { type: 'sparkles',  count: 30,  color: '#FFFFFF' },
    goldSparkle:  { type: 'sparkles',  count: 30,  color: '#FFD700' },
    thinFog:      { type: 'fog',       count: 8,   color: '#CCCCCC' },
    thickFog:     { type: 'fog',       count: 20,  color: '#999999' },
    darkFog:      { type: 'fog',       count: 15,  color: '#333344' },
    bubbles:      { type: 'bubbles',   count: 25,  color: '#88CCEE' },
    denseBubbles: { type: 'bubbles',   count: 60,  color: '#66AADD' },
    fallingLeaves:{ type: 'leaves',    count: 15,  color: '#CC8833' },
    autumnLeaves: { type: 'leaves',    count: 30,  color: '#DD6622' },
    cherryBlossom:{ type: 'leaves',    count: 25,  color: '#FFB7C5' },
    fireflies:    { type: 'fireflies', count: 15,  color: '#CCFF44' },
    denseFireflies:{ type: 'fireflies',count: 35,  color: '#AAEE33' },
    magicParticles:{ type: 'particles',count: 40,  color: '#BB77FF' },
    neonParticles:{ type: 'particles', count: 50,  color: '#00FFCC' },
    smokeRising:  { type: 'dust',      count: 20,  color: '#888888' },
    snowfall:     { type: 'snow',      count: 80,  color: '#FFFFFF' },
    rainStorm:    { type: 'rain',      count: 300, color: '#667799' },
  };

  // Helper to apply a preset by name
  engine.addPresetEffect = function(presetName) {
    const preset = engine.effectPresets[presetName];
    if (preset) {
      engine.addEffect(preset.type, { ...preset });
    } else {
      console.warn('BackgroundEngine: unknown effect preset "' + presetName + '"');
    }
  };

})(window.BackgroundEngine);