posz.ps1

$script:zscore = @();
$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$zscoreFile = "$scriptDir\zscores.csv"

if(test-path $zscoreFile){
$script:zscore = @(import-csv $zscoreFile)
}

function cd2 {
    param($path)
    if(-not $path){return;}
    
    $fullpath = resolve-path $path
    
    $existingPath = $script:zscore | ?{ $_.path.tostring() -eq $fullpath}
    if($existingPath){
        $existingPath.frequency = [convert]::toint32($existingPath.frequency) + 1
        $existingPath.recent = [convert]::toint32($existingPath.recent) + 10
    } else{
        $newPath = new-object psobject
        $newPath | add-member -name path -type noteproperty -value $fullpath
        $newPath | add-member -name frequency -type noteproperty -value 1
        $newPath | add-member -name recent -type noteproperty -value 10
        $script:zscore +=  $newPath
    }
    
    $recentSum = ($zscore | measure-object -Property recent -Sum).Sum
    if($recentSum -ge 1000){
        $script:zscore | %{ $_.recent = [math]::floor([convert]::toint32($_.recent) * 0.9) }
        $script:zscore = $script:zscore | ?{ $_.recent -ge 1}
    }
    
    $zscore | export-csv $zscoreFile -notypeinformation
    
    set-location $path

}

set-alias -name cd -value cd2 -option AllScope

function z ( $path, [switch] $list, [switch] $ranked, [switch] $times){
    if($list){
        if(-not $path){
            return $script:zscore
        }
    }
    
    $expression = '$([convert]::toint32($_.frequency) * [convert]::toint32($_.recent))'
    if($ranked){
        $expression = '$([convert]::toint32($_.recent))'
    } elseif ($times){
        $expression = '$([convert]::toint32($_.frequency))'
    }
    $pathFound = $zscore | ?{ $_ -match $path } | sort -property @{Expression = "$(iex $expression)" } -desc | select -first 1
    
    if($pathFound){
        cd $pathFound.path
    }
}