refactor: restructure files to their domains, new preview overlay system, and dep graph

1 files changed, 0 insertions, 64 deletions

diff --git a/apps/web/src/lib/timeline/audio-display.ts b/apps/web/src/lib/timeline/audio-display.ts
deleted file mode 100644
index 9958c472..00000000
--- a/apps/web/src/lib/timeline/audio-display.ts
+++ /dev/null
@@ -1,64 +0,0 @@
-import { clampDb } from "./audio-state";
-import { VOLUME_DB_MAX, VOLUME_DB_MIN } from "./audio-constants";
-
-const SLIDER_CURVE_EXPONENT = 2;
-const MIN_DISPLAY_DB = -40;
-const WAVEFORM_BAR_EXPONENT = 1.5;
-const MIN_LINEAR_GAIN = 10 ** (VOLUME_DB_MIN / 20);
-const MAX_LINEAR_GAIN = 10 ** (VOLUME_DB_MAX / 20);
-const LINEAR_GAIN_RANGE = MAX_LINEAR_GAIN - MIN_LINEAR_GAIN;
-
-function getNormalizedGainFromDb({ db }: { db: number }): number {
-	const clampedDb = clampDb(db);
-	const linearGain = 10 ** (clampedDb / 20);
-	return (linearGain - MIN_LINEAR_GAIN) / LINEAR_GAIN_RANGE;
-}
-
-/**
- * Maps the clip's volume setting to the line position. The curve is defined in
- * linear gain space so dragging near 0 dB is precise while mute compresses into
- * the bottom of the clip.
- */
-export function getLinePosFromDb({ db }: { db: number }): number {
-	const normalizedGain = Math.max(
-		0,
-		Math.min(1, getNormalizedGainFromDb({ db })),
-	);
-	const progress = normalizedGain ** (1 / SLIDER_CURVE_EXPONENT);
-	return (1 - progress) * 100;
-}
-
-/**
- * Inverse of getLinePosFromDb. Converts a drag position back into the clip's
- * volume setting without depending on the underlying audio content.
- */
-export function getDbFromLinePos({ percent }: { percent: number }): number {
-	const clampedPercent = Math.max(0, Math.min(100, percent));
-	const progress = 1 - clampedPercent / 100;
-	const normalizedGain = progress ** SLIDER_CURVE_EXPONENT;
-	const linearGain = MIN_LINEAR_GAIN + normalizedGain * LINEAR_GAIN_RANGE;
-	return clampDb(20 * Math.log10(linearGain));
-}
-
-/**
- * Maps an output amplitude (raw sample amplitude × gain) to a visible waveform
- * height fraction using a dB scale. Agnostic to whether the input is peak or
- * RMS — the caller decides which measure feeds this function; the mapping
- * curve is the same either way.
- *
- * The log scale keeps quiet content visible while reserving the top of the
- * element for amplitudes that approach 0 dBFS.
- */
-export function getBarFractionFromOutputAmplitude({
-	outputAmplitude,
-}: {
-	outputAmplitude: number;
-}): number {
-	if (outputAmplitude <= 0) return 0;
-	const db = 20 * Math.log10(outputAmplitude);
-	if (db <= MIN_DISPLAY_DB) return 0;
-	return Math.min(
-		1,
-		((db - MIN_DISPLAY_DB) / -MIN_DISPLAY_DB) ** WAVEFORM_BAR_EXPONENT,
-	);
-}