added generative audio, tailwind, improvements, adjustments

src/lib/audio/weather-mood.ts

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+import {
+	brightProgression,
+	dreamyProgression,
+	melancholicProgression,
+	tenseProgression,
+	warmProgression,
+	etherealProgression,
+	type ChordProgression
+} from './chord-progressions';
+
+interface WeatherConditions {
+	temperature2m: number;
+	relativeHumidity2m: number;
+	cloudCover: number;
+	windSpeed10m: number;
+	precipitation: number;
+	isDay: boolean;
+}
+
+/**
+ * Calculate a weather mood score based on various conditions
+ * Returns values between 0 (harsh/extreme) and 1 (pleasant)
+ */
+export function calculateComfortScore(conditions: WeatherConditions): number {
+	const { temperature2m, relativeHumidity2m, cloudCover, windSpeed10m, precipitation } =
+		conditions;
+
+	// Temperature comfort: ideal 15-25°C, drops off outside this range
+	let tempScore = 1.0;
+	if (temperature2m < 15) {
+		tempScore = Math.max(0, 1 - Math.abs(15 - temperature2m) / 30);
+	} else if (temperature2m > 25) {
+		tempScore = Math.max(0, 1 - Math.abs(temperature2m - 25) / 20);
+	}
+
+	// Humidity comfort: ideal 40-60%, drops off outside
+	let humidityScore = 1.0;
+	if (relativeHumidity2m < 40) {
+		humidityScore = Math.max(0, relativeHumidity2m / 40);
+	} else if (relativeHumidity2m > 60) {
+		humidityScore = Math.max(0, 1 - (relativeHumidity2m - 60) / 40);
+	}
+
+	// Cloud cover: some clouds (30-70%) is pleasant, extremes less so
+	const cloudScore = 1 - Math.abs(cloudCover - 50) / 50;
+
+	// Wind: light breeze (0-15 km/h) is nice, strong wind less so
+	const windScore = Math.max(0, 1 - windSpeed10m / 40);
+
+	// Precipitation: any is somewhat unpleasant
+	const precipScore = Math.max(0, 1 - precipitation / 10);
+
+	// Weighted average
+	return (
+		tempScore * 0.35 +
+		humidityScore * 0.2 +
+		cloudScore * 0.15 +
+		windScore * 0.15 +
+		precipScore * 0.15
+	);
+}
+
+/**
+ * Select the appropriate chord progression based on weather conditions
+ */
+export function selectChordProgression(conditions: WeatherConditions): ChordProgression {
+	const comfortScore = calculateComfortScore(conditions);
+	const { temperature2m, precipitation, cloudCover, isDay } = conditions;
+
+	// Stormy/extreme conditions (heavy rain, very harsh)
+	if (precipitation > 5 || comfortScore < 0.2) {
+		return tenseProgression;
+	}
+
+	// Very hot conditions
+	if (temperature2m > 30) {
+		return warmProgression;
+	}
+
+	// Cold/rainy/gloomy conditions
+	if (temperature2m < 5 || (precipitation > 1 && cloudCover > 70)) {
+		return melancholicProgression;
+	}
+
+	// Foggy/misty conditions (high humidity + clouds, low wind)
+	if (conditions.relativeHumidity2m > 80 && cloudCover > 60 && temperature2m > 5) {
+		return etherealProgression;
+	}
+
+	// Pleasant conditions - choose based on day/night
+	if (comfortScore > 0.6) {
+		return isDay ? brightProgression : dreamyProgression;
+	}
+
+	// Default: slightly unpleasant but not extreme
+	return isDay ? dreamyProgression : melancholicProgression;
+}