function finalWidthHeight(
    selectionWidth,
    selectionHeight,
    minWidth,
    minHeight
) {
    // const minWidth = 512
    // const minHeight = 512

    // const selectionWidth = 256
    // const selectionHeight = 1000

    let finalWidth = 0
    let finalHeight = 0

    if (selectionWidth <= selectionHeight) {
        //do operation on the smaller dimension
        const scaleRatio = selectionWidth / minWidth

        finalWidth = minWidth
        finalHeight = selectionHeight / scaleRatio
    } else {
        const scaleRatio = selectionHeight / minHeight

        finalHeight = minHeight
        finalWidth = selectionWidth / scaleRatio
    }
    return [finalWidth, finalHeight]
}

async function selectionToFinalWidthHeight() {
    const { getSelectionInfoExe } = require('./psapi')
    try {
        const selectionInfo = await getSelectionInfoExe()
        const [finalWidth, finalHeight] = finalWidthHeight(
            selectionInfo.width,
            selectionInfo.height,
            512,
            512
        )

        return [
            parseInt(finalWidth),
            parseInt(finalHeight),
            selectionInfo.width,
            selectionInfo.height,
        ]
    } catch (e) {
        console.warn('you need a rectangular selection', e)
    }
}

module.exports = {
    finalWidthHeight,
    selectionToFinalWidthHeight,
}