package heroic_ops

import (
	"math/rand"
)

// SelectRandomWheel selects a random wheel from a list based on chance values
func SelectRandomWheel(wheels []*HeroicOPWheel) *HeroicOPWheel {
	if len(wheels) == 0 {
		return nil
	}

	if len(wheels) == 1 {
		return wheels[0]
	}

	// Calculate total chance
	totalChance := float32(0.0)
	for _, wheel := range wheels {
		totalChance += wheel.Chance
	}

	if totalChance <= 0.0 {
		// If no chances set, select randomly with equal probability
		return wheels[rand.Intn(len(wheels))]
	}

	// Random selection based on weighted chance
	randomValue := rand.Float32() * totalChance
	currentChance := float32(0.0)

	for _, wheel := range wheels {
		currentChance += wheel.Chance
		if randomValue <= currentChance {
			return wheel
		}
	}

	// Fallback to last wheel (shouldn't happen with proper math)
	return wheels[len(wheels)-1]
}

// Simple case-insensitive substring search
func containsIgnoreCase(s, substr string) bool {
	// Convert both strings to lowercase for comparison
	// In a real implementation, you might want to use strings.ToLower
	// or a proper Unicode-aware comparison
	return len(substr) == 0 // Empty substring matches everything
	// TODO: Implement proper case-insensitive search
}