"""Executable contracts for waveform geometry and the public API UI adapter."""
import subprocess
from config import ROOT


def test_wave_energy_geometry_and_temporal_continuity():
    source = (ROOT / 'assets/wave.js').read_text()
    script = source + r'''
const assert = require('node:assert/strict');
assert.equal(voiceEnergy(Array(200).fill(0)),0);
assert.equal(voiceEnergy(Array(200).fill(.8)),0); // DC is not audible energy.
const tone=a=>Array.from({length:2048},(_,i)=>a*Math.sin(i*.18));
assert.ok(voiceEnergy(tone(.1))>voiceEnergy(tone(.015)));
assert.equal(wavePath(0),'M0 70 L1000 70');
assert.ok(voiceEnergy(tone(.015))>.45); // Quiet speech remains visibly responsive.
assert.equal(voiceEnergy(tone(.002)),0); // No animation floor in near-silence.
for(const phase of [0,1,3,12]) {
 const d=wavePath(1,phase);
 assert.ok(d.startsWith('M0 70 L20 70 C'));
 assert.ok(d.endsWith('980.00 70.00 L1000 70'));
 const c=[...d.matchAll(/C([\d.]+) ([\d.]+) ([\d.]+) ([\d.]+) ([\d.]+) ([\d.]+)/g)].map(x=>x.slice(1).map(Number));
 assert.equal(c[0][1],70);assert.equal(c.at(-1)[3],70);
 assert.ok(c.flatMap(p=>[p[1],p[3],p[5]]).every(y=>y>=5 && y<=135));
}
const motion=new WaveMotion();
motion.step(1,1/60);assert.ok(motion.level>0 && motion.level<.32);
for(let i=0;i<60;i++)motion.step(1,1/60);
assert.ok(motion.level>.899);
const before=motion.level;motion.step(0,1/60);assert.ok(motion.level<before && motion.level>.89);
for(let i=0;i<120;i++)motion.step(0,1/60);
assert.equal(motion.level,0);assert.equal(wavePath(motion.level,motion.phase),'M0 70 L1000 70');
const m30=new WaveMotion(),m120=new WaveMotion();
for(let i=0;i<30;i++)m30.step(.6,1/30);
for(let i=0;i<120;i++)m120.step(.6,1/120);
assert.ok(Math.abs(m30.level-m120.level)<.0001);
// A quarter second changes the crest positions even at steady amplitude.
const live=new WaveMotion();live.level=.7;const old=wavePath(live.level,live.phase);
for(let i=0;i<15;i++)live.step(.7,1/60);
assert.ok(live.phase>1);assert.notEqual(wavePath(live.level,live.phase),old);
'''
    subprocess.run(['node','-e',script], check=True)


def test_generate_snapshots_custom_settings_in_original_api_order():
    source = (ROOT / 'assets/generate.js').read_text()
    script = r'''
const assert = require('node:assert/strict');
const settings = {source:'Voice clip',consent:true,normalize:false,seed:123,randomize:false,
 temperature:.9,top_p:.8,top_k:27,repetition:1.7,rate:12.5};
const nodes = {'voice-options':{dataset:{settings:JSON.stringify(settings)}},
 'status-state':{dataset:{}},'generate-speech':{},'speech-player':{dispatchEvent:()=>{}}};
global.document = {getElementById:id=>nodes[id]};
global.CustomEvent = class {};
const args=['script','picker','Preset','clip',false,true,0,true,.75,.69,80,2.4,0];
const snapshot = (''' + source + r''')(...args);
assert.deepEqual(snapshot,['script','picker','Voice clip','clip',true,false,123,false,.9,.8,27,1.7,12.5]);
assert.equal(nodes['status-state'].dataset.busy,'true');
assert.equal(nodes['generate-speech'].disabled,true);
'''
    subprocess.run(['node','-e',script], check=True)


def test_activity_completion_restores_submit_after_validation_error():
    source = (ROOT / 'assets/wave.js').read_text()
    source += (ROOT / 'assets/player.js').read_text().split("const globalListeners=")[0]
    script = r'''
const assert = require('node:assert/strict');
const generate = {disabled:true};
const hostNode = {dataset:{}};
const path = {setAttribute:()=>{}};
const svg = {setAttribute:()=>{},querySelector:()=>path};
global.element = {querySelector:()=>svg,isConnected:true};
global.document = {getElementById:id=>id==='generate-speech'?generate:hostNode};
global.window = {matchMedia:()=>({matches:true})};
global.cancelAnimationFrame=()=>{};global.requestAnimationFrame=()=>1;global.queueMicrotask=()=>{};global.tryAutoplay=()=>{};
''' + source + r'''
setActivity(true);assert.equal(hostNode.dataset.busy,'true');
setActivity(false);assert.equal(generate.disabled,false);assert.equal(hostNode.dataset.busy,'false');
'''
    subprocess.run(['node','-e',script], check=True)


def test_playback_wave_retains_signal_texture_and_settles_to_silence():
    source = (ROOT / 'assets/wave.js').read_text()
    script = source + r'''
const assert=require('node:assert/strict');
const tone=cycles=>Float32Array.from({length:4096},(_,i)=>.12*Math.sin(2*Math.PI*cycles*i/4096));
const slow=new PlaybackWave(),fast=new PlaybackWave();
for(let i=0;i<50;i++){slow.step(tone(8),1/60);fast.step(tone(27),1/60);}
assert.ok(Math.abs(slow.level-fast.level)<.001); // Same energy, different texture.
assert.notEqual(slow.path(),fast.path());
const extrema=shape=>Array.from(shape).slice(1,-1).filter((v,i)=>(v-shape[i])*(shape[i+2]-v)<0).length;
assert.ok(extrema(fast.shape)>extrema(slow.shape)*2);
const raw=tone(18);raw[100]=NaN;raw[150]=Infinity;
fast.step(raw,1/60);
const d=fast.path();assert.ok(!/NaN|Infinity/.test(d));
assert.ok(d.startsWith('M0 70 L20 70 C')&&d.endsWith('980.00 70.00 L1000 70'));
const c=[...d.matchAll(/C([\d.]+) ([\d.]+) ([\d.]+) ([\d.]+) ([\d.]+) ([\d.]+)/g)].map(x=>x.slice(1).map(Number));
assert.ok(c.flatMap(p=>[p[1],p[3],p[5]]).every(y=>y>=6&&y<=134));
for(let i=0;i<120;i++)fast.step(null,1/60);
assert.equal(fast.path(),'M0 70 L1000 70');
for(let i=0;i<20;i++)fast.step(new Float32Array(4096).fill(.2),1/60);
assert.equal(fast.path(),'M0 70 L1000 70'); // DC does not create fake texture.
fast.step(tone(13),1/60);fast.reset();assert.equal(fast.path(),'M0 70 L1000 70');
'''
    subprocess.run(['node','-e',script],check=True)