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)]
    }catch(e){
        console.warn("you need a rectangular selection",e)
    }
}

module.exports = {
finalWidthHeight,
selectionToFinalWidthHeight
}