style: auto-fix linting issues

index.html

@@ -4262,13 +4262,12 @@
                                                     <b>Scroll on a node</b> to adjust Q (bandwidth).
                                                 </li>
                                                 <li>
-                                                    <b>Right-click a node</b> to change its filter type
+                                                    <b>Right-click a node</b> to change its filter type (Peaking, Low
-                                                    (Peaking, Low Shelf, High Shelf) or channel mode
+                                                    Shelf, High Shelf) or channel mode (Stereo, Mid, Side).
-                                                    (Stereo, Mid, Side).
                                                 </li>
                                                 <li>
-                                                    <b>Right-click empty space</b> or <b>double-click</b> to add a
+                                                    <b>Right-click empty space</b> or <b>double-click</b> to add a node.
-                                                    node. <b>Double-click a node</b> to remove it.
+                                                    <b>Double-click a node</b> to remove it.
                                                 </li>
                                                 <li>
                                                     <b>Save</b> the profile so you can switch between headphones
@@ -4301,9 +4300,8 @@
                                                     channel mode to <b>Stereo</b>, <b>Mid</b>, or <b>Side</b>.
                                                 </li>
                                                 <li>
-                                                    <b>Right-click empty space</b> or <b>double-click</b> to add a
+                                                    <b>Right-click empty space</b> or <b>double-click</b> to add a node
-                                                    node at that position.
+                                                    at that position. <b>Double-click a node</b> to delete it.
-                                                    <b>Double-click a node</b> to delete it.
                                                 </li>
                                                 <li>
                                                     Use <b>+ Add Band / - Remove Band</b> to change the number of
@@ -4322,12 +4320,11 @@
                                                 Tip: Lower Q = wider curve, higher Q = narrower surgical cut.
                                             </p>
                                             <p class="eq-howto-tip">
-                                                Mid/Side tips: Set a band to <b>Mid</b> to EQ only the
+                                                Mid/Side tips: Set a band to <b>Mid</b> to EQ only the center image
-                                                center image (vocals, bass, kick). Set it to <b>Side</b> to
+                                                (vocals, bass, kick). Set it to <b>Side</b> to EQ only the stereo width
-                                                EQ only the stereo width (reverb, ambience, panned instruments).
+                                                (reverb, ambience, panned instruments). Try cutting low-end on Side
-                                                Try cutting low-end on Side below 200 Hz for tighter, mono-compatible
+                                                below 200 Hz for tighter, mono-compatible bass - or boost presence on
-                                                bass - or boost presence on Mid around 2-5 kHz to bring vocals forward
+                                                Mid around 2-5 kHz to bring vocals forward without touching the sides.
-                                                without touching the sides.
                                             </p>
                                         </div>
 
@@ -4360,8 +4357,8 @@
                                                     <b>Right-click a node</b> to change type or channel mode.
                                                 </li>
                                                 <li>
-                                                    <b>Right-click empty space</b> or <b>double-click</b> to add a
+                                                    <b>Right-click empty space</b> or <b>double-click</b> to add a node.
-                                                    node. <b>Double-click a node</b> to remove it.
+                                                    <b>Double-click a node</b> to remove it.
                                                 </li>
                                                 <li>
                                                     Repeat for each channel, then <b>Export JSON</b> with all channels.

js/audio-context.js

@@ -326,7 +326,7 @@ class AudioContextManager {
             const type = (this.currentTypes && this.currentTypes[i]) || 'peaking';
             const q = this.currentQs && this.currentQs[i] > 0 ? this.currentQs[i] : this._calculateQ(i);
             const ch = (this.currentChannels && this.currentChannels[i]) || 'stereo';
-            const gain = ch === 'side' ? 0 : (this.currentGains[i] || 0);
+            const gain = ch === 'side' ? 0 : this.currentGains[i] || 0;
             const filter = this.audioContext.createBiquadFilter();
             filter.type = type;
             filter.frequency.value = freq;
@@ -339,7 +339,7 @@ class AudioContextManager {
             const type = (this.currentTypes && this.currentTypes[i]) || 'peaking';
             const q = this.currentQs && this.currentQs[i] > 0 ? this.currentQs[i] : this._calculateQ(i);
             const ch = (this.currentChannels && this.currentChannels[i]) || 'stereo';
-            const gain = ch === 'mid' ? 0 : (this.currentGains[i] || 0);
+            const gain = ch === 'mid' ? 0 : this.currentGains[i] || 0;
             const filter = this.audioContext.createBiquadFilter();
             filter.type = type;
             filter.frequency.value = freq;
@@ -353,7 +353,13 @@ class AudioContextManager {
      * Destroy M/S parallel filter chains
      */
     _destroyMSFilters() {
-        const sd = (node) => { try { node?.disconnect(); } catch { /* */ } };
+        const sd = (node) => {
+            try {
+                node?.disconnect();
+            } catch {
+                /* */
+            }
+        };
         this.midFilters.forEach(sd);
         this.sideFilters.forEach(sd);
         this.midFilters = [];
@@ -660,15 +666,15 @@ class AudioContextManager {
                     // Encode L/R → M/S
                     lastNode.connect(this.msSplitter);
 
-                    this.msSplitter.connect(this.msEncoderMidL, 0);  // L → Mid
+                    this.msSplitter.connect(this.msEncoderMidL, 0); // L → Mid
-                    this.msSplitter.connect(this.msEncoderMidR, 1);  // R → Mid
+                    this.msSplitter.connect(this.msEncoderMidR, 1); // R → Mid
                     this.msEncoderMidL.connect(this.msMidInput);
-                    this.msEncoderMidR.connect(this.msMidInput);     // Mid = (L+R)*0.5
+                    this.msEncoderMidR.connect(this.msMidInput); // Mid = (L+R)*0.5
 
                     this.msSplitter.connect(this.msEncoderSideL, 0); // L → Side
                     this.msSplitter.connect(this.msEncoderSideR, 1); // R → Side (-0.5)
                     this.msEncoderSideL.connect(this.msSideInput);
-                    this.msEncoderSideR.connect(this.msSideInput);   // Side = (L-R)*0.5
+                    this.msEncoderSideR.connect(this.msSideInput); // Side = (L-R)*0.5
 
                     // Mid filter chain
                     this.msMidInput.connect(this.midFilters[0]);
@@ -688,12 +694,12 @@ class AudioContextManager {
                     this.midOutputNode.connect(this.msDecoderMidToL);
                     this.sideOutputNode.connect(this.msDecoderSideToL);
                     this.msDecoderMidToL.connect(this.msLMix);
-                    this.msDecoderSideToL.connect(this.msLMix);      // L = Mid + Side
+                    this.msDecoderSideToL.connect(this.msLMix); // L = Mid + Side
 
                     this.midOutputNode.connect(this.msDecoderMidToR);
                     this.sideOutputNode.connect(this.msDecoderSideToR);
                     this.msDecoderMidToR.connect(this.msRMix);
-                    this.msDecoderSideToR.connect(this.msRMix);      // R = Mid - Side
+                    this.msDecoderSideToR.connect(this.msRMix); // R = Mid - Side
 
                     this.msLMix.connect(this.msMerger, 0, 0);
                     this.msRMix.connect(this.msMerger, 0, 1);
@@ -1089,7 +1095,8 @@ class AudioContextManager {
         this.msEnabled = needsMS;
 
         if (this.isInitialized && this.audioContext) {
-            const needsRebuild = msChanged || this.filters.length !== count || (needsMS && this.midFilters.length !== count);
+            const needsRebuild =
+                msChanged || this.filters.length !== count || (needsMS && this.midFilters.length !== count);
 
             if (needsRebuild) {
                 // M/S state changed or band count changed — full rebuild
@@ -1108,11 +1115,11 @@ class AudioContextManager {
                 this._updateFilterChain(this.filters, newFrequencies, newTypes, newQs, newGains, now);
 
                 // Update mid filters (gain = 0 for side-only bands)
-                const midGains = newGains.map((g, i) => newChannels[i] === 'side' ? 0 : g);
+                const midGains = newGains.map((g, i) => (newChannels[i] === 'side' ? 0 : g));
                 this._updateFilterChain(this.midFilters, newFrequencies, newTypes, newQs, midGains, now);
 
                 // Update side filters (gain = 0 for mid-only bands)
-                const sideGains = newGains.map((g, i) => newChannels[i] === 'mid' ? 0 : g);
+                const sideGains = newGains.map((g, i) => (newChannels[i] === 'mid' ? 0 : g));
                 this._updateFilterChain(this.sideFilters, newFrequencies, newTypes, newQs, sideGains, now);
             } else if (this.filters.length === count) {
                 // Normal stereo — update in-place

js/settings.js

@@ -2561,7 +2561,12 @@ export async function initializeSettings(scrobbler, player, api, ui) {
                 const bands = getActiveBands();
 
                 // Filter type actions
-                if (action.startsWith('eq-type-') && contextMenuNodeIdx !== null && bands && bands[contextMenuNodeIdx]) {
+                if (
+                    action.startsWith('eq-type-') &&
+                    contextMenuNodeIdx !== null &&
+                    bands &&
+                    bands[contextMenuNodeIdx]
+                ) {
                     const typeMap = {
                         'eq-type-lowshelf': 'lowshelf',
                         'eq-type-peaking': 'peaking',
@@ -2578,7 +2583,12 @@ export async function initializeSettings(scrobbler, player, api, ui) {
                 }
 
                 // Channel actions (per-band M/S mode)
-                if (action.startsWith('eq-channel-') && contextMenuNodeIdx !== null && bands && bands[contextMenuNodeIdx]) {
+                if (
+                    action.startsWith('eq-channel-') &&
+                    contextMenuNodeIdx !== null &&
+                    bands &&
+                    bands[contextMenuNodeIdx]
+                ) {
                     const channelMap = {
                         'eq-channel-stereo': 'stereo',
                         'eq-channel-mid': 'mid',
@@ -2627,12 +2637,21 @@ export async function initializeSettings(scrobbler, player, api, ui) {
                     if (currentMode === 'autoeq') {
                         autoeqCurrentBands = [];
                         bands = autoeqCurrentBands;
-                    } else { hideEmptyContextMenu(); return; }
+                    } else {
+                        hideEmptyContextMenu();
+                        return;
+                    }
+                }
+                if (bands.length >= 32) {
+                    hideEmptyContextMenu();
+                    return;
                 }
-                if (bands.length >= 32) { hideEmptyContextMenu(); return; }
 
                 const rect = autoeqCanvas.getBoundingClientRect();
-                const padLeft = 40, padRight = 10, padTop = 10, padBottom = 30;
+                const padLeft = 40,
+                    padRight = 10,
+                    padTop = 10,
+                    padBottom = 30;
                 const w = rect.width - padLeft - padRight;
                 const h = rect.height - padTop - padBottom;
                 const dbCenter = isParam ? 0 : 75;
@@ -2640,9 +2659,10 @@ export async function initializeSettings(scrobbler, player, api, ui) {
                 const dbMin = dbCenter - dbHalf;
                 const dbMax = dbCenter + dbHalf;
                 const freq = Math.max(20, Math.min(20000, Math.round(xToFreq(pendingAddCoords.x - padLeft, w))));
-                const gain = Math.max(-30, Math.min(30,
+                const gain = Math.max(
-                    Math.round((yToDb(pendingAddCoords.y - padTop, h, dbMin, dbMax) - dbCenter) * 10) / 10
+                    -30,
-                ));
+                    Math.min(30, Math.round((yToDb(pendingAddCoords.y - padTop, h, dbMin, dbMax) - dbCenter) * 10) / 10)
+                );
 
                 bands.push({ id: bands.length, type: 'peaking', freq, gain, q: 1.0, enabled: true, channel: 'stereo' });
                 setActiveBands(bands);
@@ -2984,7 +3004,15 @@ export async function initializeSettings(scrobbler, player, api, ui) {
             const defaultBands = [];
             for (let i = 0; i < 10; i++) {
                 const freq = 20 * Math.pow(20000 / 20, i / 9);
-                defaultBands.push({ id: i, type: 'peaking', freq: Math.round(freq), gain: 0, q: 1.0, enabled: true, channel: 'stereo' });
+                defaultBands.push({
+                    id: i,
+                    type: 'peaking',
+                    freq: Math.round(freq),
+                    gain: 0,
+                    q: 1.0,
+                    enabled: true,
+                    channel: 'stereo',
+                });
             }
             parametricBands = defaultBands;
             applyBandsToAudio(parametricBands);
@@ -5295,7 +5323,15 @@ export async function initializeSettings(scrobbler, player, api, ui) {
                 setActiveBands(bands);
             }
             if (bands.length >= 32) return;
-            bands.push({ id: bands.length, type: 'peaking', freq: 1000, gain: 0, q: 1.0, enabled: true, channel: 'stereo' });
+            bands.push({
+                id: bands.length,
+                type: 'peaking',
+                freq: 1000,
+                gain: 0,
+                q: 1.0,
+                enabled: true,
+                channel: 'stereo',
+            });
             applyBandsToAudio(bands);
             renderBandControls(bands);
             computeCorrectedCurve();