// Quick test script for price utilities
const {
	calculateNewPrice,
	isValidPrice,
	formatPrice,
	calculatePercentageChange,
	isValidPercentage,
} = require("./src/utils/price.js");

console.log("Testing Price Utilities...\n");

// Test calculateNewPrice
console.log("=== Testing calculateNewPrice ===");
try {
	console.log("10% increase on $100:", calculateNewPrice(100, 10)); // Should be 110
	console.log("20% decrease on $50:", calculateNewPrice(50, -20)); // Should be 40
	console.log("5.5% increase on $29.99:", calculateNewPrice(29.99, 5.5)); // Should be 31.64
	console.log("0% change on $25:", calculateNewPrice(25, 0)); // Should be 25
	console.log("Zero price with 10% increase:", calculateNewPrice(0, 10)); // Should be 0
} catch (error) {
	console.error("Error:", error.message);
}

// Test edge cases
console.log("\n=== Testing Edge Cases ===");
try {
	console.log("Negative price test (should throw error):");
	calculateNewPrice(-10, 10);
} catch (error) {
	console.log("✓ Correctly caught negative price error:", error.message);
}

try {
	console.log("Large decrease test (should throw error):");
	calculateNewPrice(10, -150); // 150% decrease would make price negative
} catch (error) {
	console.log("✓ Correctly caught negative result error:", error.message);
}

// Test validation functions
console.log("\n=== Testing Validation Functions ===");
console.log("isValidPrice(100):", isValidPrice(100)); // true
console.log("isValidPrice(-10):", isValidPrice(-10)); // false
console.log('isValidPrice("abc"):', isValidPrice("abc")); // false
console.log("isValidPrice(0):", isValidPrice(0)); // true

console.log("isValidPercentage(10):", isValidPercentage(10)); // true
console.log("isValidPercentage(-20):", isValidPercentage(-20)); // true
console.log('isValidPercentage("abc"):', isValidPercentage("abc")); // false

// Test formatting
console.log("\n=== Testing Price Formatting ===");
console.log("formatPrice(29.99):", formatPrice(29.99)); // "29.99"
console.log("formatPrice(100):", formatPrice(100)); // "100.00"
console.log("formatPrice(0):", formatPrice(0)); // "0.00"

// Test percentage change calculation
console.log("\n=== Testing Percentage Change Calculation ===");
console.log("Change from $100 to $110:", calculatePercentageChange(100, 110)); // 10
console.log("Change from $50 to $40:", calculatePercentageChange(50, 40)); // -20
console.log(
	"Change from $29.99 to $31.64:",
	calculatePercentageChange(29.99, 31.64)
); // ~5.5

console.log("\n✓ All tests completed!");