import { fromFile } from "geotiff"
import type { GeoTIFFImage } from "geotiff"

/**
 * Extracts detailed informations from a geoTIFF that can be used with the getGeoTiffValues function. Just for NodeJS and similar runtimes.
 *
 * @example
 * Basic usage
 * ```js
 * const geoTiffDetails = await getGeoTiffDetails("./some-file.tif")
 * const value = await getGeoTiffValues(45.50, -73.57, geoTiffDetails)
 * ```
 *
 * @param path - The path to the geoTIFF file.
 *
 * @category Geo
 */
export default async function getGeoTiffDetails(path: string): Promise<{
    image: GeoTIFFImage
    bbox: number[]
    pixelWidth: number
    pixelHeight: number
    bboxWidth: number
    bboxHeight: number
}> {
    const file = await fromFile(path)
    const image = await file.getImage()
    const bbox = image.getBoundingBox()
    const pixelWidth = image.getWidth()
    const pixelHeight = image.getHeight()
    const bboxWidth = bbox[2] - bbox[0]
    const bboxHeight = bbox[3] - bbox[1]

    return { image, bbox, pixelWidth, pixelHeight, bboxWidth, bboxHeight }
}