import { Logger } from "tasmota-webserial-esptool";
import { Build, FlashState, Manifest } from "./const";
/**
 * Parse flash size string (e.g., "4MB", "8MB", "16MB") to megabytes number
 */
export declare function parseFlashSizeToMB(flashSize: string): number | undefined;
/**
 * Extract the most relevant firmware filename from a build's parts.
 * Prefers parts with "factory" in the name.
 * Ignores parts with "bootloader" or "partition" in the name.
 * Returns just the basename (no path prefix).
 */
export declare function getFirmwareFileName(build: Build): string | undefined;
/**
 * Find the best matching build for a given chip configuration.
 * This is the single source of truth for build selection used by both
 * the flash routine and the install dialog UI.
 */
export declare function findMatchingBuild(manifest: Manifest, chipFamily: string, chipVariant: string | null, flashSizeMB: number | undefined, usbInterface: "UART" | "CDC" | undefined): Build | undefined;
/**
 * Detect the matching build for the currently connected device.
 * Extracts chip info directly from the esploader instance.
 *
 * @param manifest - The loaded firmware manifest
 * @param esploader - ESPLoader instance (or stub) with chip info
 * @param flashSize - Detected flash size string (e.g. "4MB"), or undefined
 * @param isUsbJtagOrOtg - Whether the device uses native USB (CDC) instead of external serial
 * @param improvChipFamily - Optional chipFamily from Improv Serial info (takes precedence)
 */
export declare function detectMatchingBuild(manifest: Manifest, esploader: any, flashSize: string | undefined, isUsbJtagOrOtg: boolean, improvChipFamily?: string): Build | undefined;
export declare const flash: (onEvent: (state: FlashState) => void, esploader: any, // ESPLoader instance from tasmota-webserial-esptool
logger: Logger, manifestPath: string, eraseFirst: boolean, firmwareBuffer: Uint8Array, _baudRate?: number) => Promise<void>;