frontend/src/components/generation/ACEStepParams.jsx

import React, { useState } from 'react'
import ParamSlider from './ParamSlider'

export default function ACEStepParams({ params, onParamChange, detection }) {
  const [showAdvanced, setShowAdvanced] = useState(false)

  return (
    <div className="space-y-3">
      <div className="text-[10px] text-gray-500 bg-white/[0.02] rounded-lg px-3 py-2">
        Caption is auto-generated from your seed's analysis (BPM, key, brightness, instruments) for musical coherence. Override below if needed.
      </div>

      {/* Optional caption override (collapsed by default) */}
      <button
        onClick={() => setShowAdvanced(!showAdvanced)}
        className="text-xs text-gray-500 hover:text-gray-300 transition-colors flex items-center gap-1"
      >
        <span className={`transition-transform ${showAdvanced ? 'rotate-90' : ''}`}>&#9654;</span>
        Custom Caption & Advanced
      </button>

      {showAdvanced && (
        <div className="space-y-3 pl-3 border-l border-white/[0.06]">
          <div>
            <label className="text-xs text-gray-400 font-medium mb-1 block">Caption Override</label>
            <textarea
              value={params.caption}
              onChange={e => onParamChange('caption', e.target.value)}
              placeholder="Leave empty for auto-generated caption"
              className="w-full bg-surface-elevated border border-white/[0.08] rounded-lg px-3 py-2 text-sm text-white placeholder-gray-600 focus:outline-none focus:border-accent-500/40 resize-none font-mono"
              rows={2}
            />
          </div>

          <ParamSlider
            label="CFG Scale"
            value={params.cfg_scale || 7}
            min={1}
            max={15}
            step={0.5}
            onChange={v => onParamChange('cfg_scale', v)}
          />

          <div>
            <label className="text-xs text-gray-400 font-medium mb-1 block">Scheduler</label>
            <select
              value={params.scheduler}
              onChange={e => onParamChange('scheduler', e.target.value)}
              className="bg-surface-elevated border border-white/[0.08] rounded-lg px-3 py-1.5 text-sm text-white focus:outline-none focus:border-accent-500/40"
            >
              <option value="ode">ODE (recommended)</option>
              <option value="sde">SDE</option>
            </select>
          </div>
        </div>
      )}

      <ParamSlider
        label="Duration"
        value={params.duration}
        min={10}
        max={120}
        step={5}
        onChange={v => onParamChange('duration', v)}
        leftLabel="10s"
        rightLabel="120s"
      />

      <ParamSlider
        label="Source Fidelity"
        value={params.audio_cover_strength}
        min={0}
        max={1}
        step={0.05}
        onChange={v => onParamChange('audio_cover_strength', v)}
        leftLabel="Creative"
        rightLabel="Faithful"
      />

      {/* Model Variant */}
      <div>
        <label className="text-xs text-gray-400 font-medium mb-1 block">Model Variant</label>
        <select
          value={params.model_variant}
          onChange={e => onParamChange('model_variant', e.target.value)}
          className="bg-surface-elevated border border-white/[0.08] rounded-lg px-3 py-1.5 text-sm text-white focus:outline-none focus:border-accent-500/40"
        >
          <option value="xl-turbo">XL Turbo (best for 32GB)</option>
          <option value="standard-turbo">Standard Turbo (faster)</option>
          <option value="standard-sft">Standard SFT (balanced)</option>
        </select>
      </div>

      <ParamSlider
        label="Inference Steps"
        value={params.inference_steps}
        min={1}
        max={50}
        step={1}
        onChange={v => onParamChange('inference_steps', v)}
        leftLabel="Fast (1)"
        rightLabel="Quality (50)"
      />

      {/* Seed */}
      <div>
        <label className="text-xs text-gray-400 font-medium mb-1 block">Seed</label>
        <div className="flex gap-2">
          <input
            type="number"
            value={params.seed}
            onChange={e => onParamChange('seed', parseInt(e.target.value) || -1)}
            className="flex-1 bg-surface-elevated border border-white/[0.08] rounded-lg px-3 py-1.5 text-sm text-white font-mono focus:outline-none focus:border-accent-500/40"
          />
          <button
            onClick={() => onParamChange('seed', Math.floor(Math.random() * 999999))}
            className="px-2 py-1.5 rounded-lg bg-white/[0.06] hover:bg-white/[0.1] text-sm transition-colors"
            title="Random seed"
          >
            🎲
          </button>
        </div>
        <span className="text-[10px] text-gray-600 mt-0.5 block">-1 = random</span>
      </div>
    </div>
  )
}