// Logger utility for pi-test-oracle.
// Replaces direct console.warn/error with consistent structured logging.

const PREFIX = "[pi-test-oracle]";

export enum LogLevel {
	SILENT = 0,
	ERROR = 1,
	WARN = 2,
	INFO = 3,
	DEBUG = 4,
}

let currentLevel: LogLevel = LogLevel.INFO;

/**
 * Set the log level for the oracle.
 */
export function setLogLevel(level: LogLevel): void {
	currentLevel = level;
}

/**
 * Get the current log level.
 */
export function getLogLevel(): LogLevel {
	return currentLevel;
}

/**
 * Log an info message.
 */
export function logInfo(message: string): void {
	if (currentLevel >= LogLevel.INFO) {
		console.log(`${PREFIX} ${message}`);
	}
}

/**
 * Log a warning message.
 */
export function logWarn(message: string): void {
	if (currentLevel >= LogLevel.WARN) {
		console.warn(`${PREFIX} ${message}`);
	}
}

/**
 * Log an error message.
 */
export function logError(message: string): void {
	if (currentLevel >= LogLevel.ERROR) {
		console.error(`${PREFIX} ${message}`);
	}
}

/**
 * Log a debug message (only when PI_DEBUG=1 or PI_TEST_ORACLE_DEBUG=1).
 */
export function logDebug(message: string): void {
	if (
		currentLevel >= LogLevel.DEBUG ||
		process.env.PI_DEBUG === "1" ||
		process.env.PI_TEST_ORACLE_DEBUG === "1"
	) {
		console.log(`${PREFIX} [DEBUG] ${message}`);
	}
}