// Package main — weatherq.go holds the weather-query keyword helpers: does
// this utterance ask about weather at all, and which city (if any) did it
// name. Both are plain substring/lookup matching, not NLU — extend this file
// rather than voice.go for anything in that shape.
package main

import "strings"

// isWeatherQuery returns true if the utterance is about weather.
func isWeatherQuery(u string) bool {
	lower := strings.ToLower(u)
	return strings.Contains(lower, "погод") ||
		strings.Contains(lower, "градус") ||
		strings.Contains(lower, "температур") ||
		strings.Contains(lower, "дожд") ||
		strings.Contains(lower, "холод") ||
		strings.Contains(lower, "тепл") ||
		strings.Contains(lower, "weather") ||
		strings.Contains(lower, "temperature")
}

// extractWeatherLocation parses a location from the utterance, or falls back
// to the configured default. Very basic: just checks for known city names.
func extractWeatherLocation(u, defaultLoc string) string {
	lower := strings.ToLower(u)
	cities := map[string]string{
		"москв":    "Moscow",
		"moscow":   "Moscow",
		"питер":    "Saint Petersburg",
		"spb":      "Saint Petersburg",
		"петербур": "Saint Petersburg",
		"лондон":   "London",
		"london":   "London",
		"париж":    "Paris",
		"paris":    "Paris",
		"берлин":   "Berlin",
		"berlin":   "Berlin",
		"нью-йорк": "New York",
		"new york": "New York",
	}
	for substr, name := range cities {
		if strings.Contains(lower, substr) {
			return name
		}
	}
	if defaultLoc != "" {
		return defaultLoc
	}
	return "Moscow"
}