PowerShell Candy - my demo files from the PSPowerHour on 26 May, 2020

ANSIGreeting.ps1

#requires -version 7.0

$am = @"
  _____           __  __  ___              _                 __    ______
 / ___/__ ___ ___/ / /  |/  /__  _______  (_)__ ___ _    __ / /__ / _/ _/
/ (_ / _ \ _ \ _  / / /|_/ / _ \/ __/ _ \/ / _ \ _ `/   / // / -_) _/ _/
\___/\___\___\_,_/ /_/  /_/\___/_/ /_//_/_/_//_\_, ( )  \___/\__/_//_/
                                              /___/|/
"@

 $pm = @"
   _____           __  ___   _____                                   __    _____
 / ___/__ ___ ___/ / / _ | / _/ /____ _______ ___ ___  ___      __ / /__ / _/ _/
/ (_ / _ \ _ \ _  / / __ |/ _/ __/ -_) __/ _ \ _ \ _ \/ _ \_   / // / -_) _/ _/
\___/\___\___\_,_/ /_/ |_/_/ \__/\__/_/ /_//_\___\___/_//_( )  \___/\__/_//_/
                                                          |/
"@

$eve = @"
  _____           __  ____              _                 __    ______
 / ___/__ ___ ___/ / / __/  _____ ___  (_)__ ___ _    __ / /__ / _/ _/
/ (_ / _ \ _ \ _  / / _/| |/ / -_) _ \/ / _ \ _ `/   / // / -_) _/ _/
\___/\___\___\_,_/ /___/|___/\__/_//_/_/_//_\_, ( )  \___/\__/_//_/
                                           /___/|/
"@

$hour = (Get-Date).hour
if ($hour -ge 18) {
 "`e[38;5;124m$eve`e[0m"
}
elseif ($hour -ge 12) {
  "`e[38;5;227m$pm`e[0m"
}
else {
"`e[38;5;209m$am`e[0m"
}

<# Saved

$am = @"
  _____           __  __  ___              _                 __    ______
 / ___/__ ___ ___/ / /  |/  /__  _______  (_)__ ___ _    __ / /__ / _/ _/__ ______ __
/ (_ / _ \ _ \ _  / / /|_/ / _ \/ __/ _ \/ / _ \ _ `/   / // / -_) _/ _/ -_) __/ // /
\___/\___\___\_,_/ /_/  /_/\___/_/ /_//_/_/_//_\_, ( )  \___/\__/_//_/ \__/_/  \_, /
                                              /___/|/                         /___/
"@

 $pm = @"
   _____           __  ___   _____                                   __    ______
 / ___/__ ___ ___/ / / _ | / _/ /____ _______ ___ ___  ___      __ / /__ / _/ _/__ ______ __
/ (_ / _ \ _ \ _  / / __ |/ _/ __/ -_) __/ _ \ _ \ _ \/ _ \_   / // / -_) _/ _/ -_) __/ // /
\___/\___\___\_,_/ /_/ |_/_/ \__/\__/_/ /_//_\___\___/_//_( )  \___/\__/_//_/ \__/_/  \_, /
                                                          |/                         /___/
"@

$eve = @"
  _____           __  ____              _                 __    ______
 / ___/__ ___ ___/ / / __/  _____ ___  (_)__ ___ _    __ / /__ / _/ _/__ ______ __
/ (_ / _ \ _ \ _  / / _/| |/ / -_) _ \/ / _ \ _ `/   / // / -_) _/ _/ -_) __/ // /
\___/\___\___\_,_/ /___/|___/\__/_//_/_/_//_\_, ( )  \___/\__/_//_/ \__/_/  \_, /
                                           /___/|/                         /___/
"@
#>

ConvertTo-ASCIIArt.ps1

#requires -version 5.1
#ConvertTo-ASCIIArt.ps1

<#
font list at https://artii.herokuapp.com/fonts_list
font names are case-sensitive

invoke-restmethod https://artii.herokuapp.com/fonts_list

#>

Function ConvertTo-ASCIIArt {
    [cmdletbinding()]
    [alias("cart")]
    [outputtype([System.String])]
    Param(
        [Parameter(Position = 0, Mandatory, HelpMessage = "Enter a short string of text to convert", ValueFromPipeline)]
        [ValidateNotNullOrEmpty()]
        [string]$Text,
        [Parameter(Position = 1,HelpMessage = "Specify a font from https://artii.herokuapp.com/fonts_list. Font names are case-sensitive")]
        [ValidateNotNullOrEmpty()]
        [string]$Font = "big"
    )

    Begin {
        Write-Verbose "[$((Get-Date).TimeofDay) BEGIN] Starting $($myinvocation.mycommand)"
    } #begin

    Process {
        Write-Verbose "[$((Get-Date).TimeofDay) PROCESS] Processing $text with font $Font"
        $testEncode = [uri]::EscapeDataString($Text)
        $url = "http://artii.herokuapp.com/make?text=$testEncode&font=$Font"
        Try {
            Invoke-Restmethod -Uri $url -DisableKeepAlive -ErrorAction Stop
        }
        Catch {
            Throw $_
        }
    } #process
    End {
        Write-Verbose "[$((Get-Date).TimeofDay) END    ] Ending $($myinvocation.mycommand)"
    } #end
}

ps7terminalprompt.ps1

# Powershell profile prompt designed for PowerShell running in Windows Terminal

#this function uses the Show-Calendar command from the PSCalendar module
#which can be installed from the PowerShell Gallery.

function prompt {

  $location = $executionContext.SessionState.Path.CurrentLocation.path

  #define some timely emojis
  $morning = 0x2615, 0x1F95E, 0x1F953, 0x1F369
  $lunch = 0x1F96A, 0x1F355, 0x1F32D
  $cup = 0x1F943, 0x1F964
  $cocktail = 0x1F378, 0x1F379, 0x1F943, 0x1F377

  #What time is it?
  $hour = (Get-Date).hour
  if ($hour -ge 16) {
    $glyph = ConvertTo-Emoji ($cocktail | Get-Random)
  }
  elseif ($hour -ge 13) {
    #afternoon
    $glyph = ConvertTo-Emoji ($cup | Get-Random)

  }
  elseif ($hour -ge 11) {
    $glyph = ConvertTo-Emoji ($lunch | Get-Random)
  }
  else {
    #morning
    $glyph = ConvertTo-Emoji ($morning | Get-Random)
  }

  #Some code to shorten long paths in the prompt
  #what is the maximum length of the path before you begin truncating?
  $len = 33

  if ($location.length -gt $len) {

    #split on the path delimiter which might be different on non-Windows platforms
    $dsc = [system.io.path]::DirectorySeparatorChar
    #escape the separator character to treat it as a literal
    #filter out any blank entries which might happen if the path ends with the delimiter
    $split = $location -split "\$($dsc)" | Where-Object { $_ -match "\S+" }
    #reconstruct a shorted path
    $here = "{0}$dsc{1}...$dsc{2}" -f $split[0], $split[1], $split[-1]

  }
  else {
    #length is ok so use the current location
    $here = $location
  }

  $dt = Get-Date -Format "MMMM dd hh:mm" #"dd-MM-yy HH:mm:ss"
  Write-Host "[$dt]$glyph" -ForegroundColor yellow -NoNewline
  #use truncated long path
  Write-Host "`e[1mPS$($PSVersionTable.PSversion.major).$($PSVersionTable.PSversion.minor)`e[0m `e[22;38;5;51;48;5;27m$here$('>' * ($nestedPromptLevel + 1))`e[0m" -NoNewLine
  
  Write-Output " "

  $left = $host.ui.RawUI.WindowSize.width - 42
  #show the calendar in the upper right corner of the console
  $pos = [system.management.automation.host.coordinates]::new($left, 0)
  Show-Calendar -Position $pos

  #rotate headers if running in Windows Terminal
  if ($ENV:WT_SESSION) {
    #if this is the first time
    if (-Not $global:lastChanged) {
      $global:lastChanged = Get-Date
    }

    $min = ((Get-Date) - $global:lastChanged).totalMinutes
    #rotate graphics every 11 minutes
    if ($min -ge 11) {
      C:\scripts\RotateHead.ps1
      $global:lastChanged = Get-Date
    }
  }

} #close function

pscandy.ps1

#requires -version 7.0

<#
PowerShell Candy
PowerShell is about getting work done. But that doesn't mean it has to be drab and gray. 
Sometimes it helps to add a little visual pizzazz. Like putting a border around the 
heading in a report. Or adding a dash of color to reinforce the data - without 
relying on Write-Host! In this session we'll explore the world of ANSI, special 
characters and more so that you can start adding a little flair to your PowerShell work.
#>

#some of these demos won't work in the PowerShell ISE

Return "`e[38;5;214mThis is demo file.`e[0m"

#Install-Module PSScriptTools
Import-Module PSScriptTools

#region characters

charmap.exe

[char]0x00B6
[char]0x25CA

#this is from my PSScriptTools module
$PSSpecialChar

#create a line
([string]$PSSpecialChar.Diamond)*20

#endregion

#region ASCII Art

code C:\scripts\ConvertTo-ASCIIArt.ps1

cart "Hello World" computer
cart jeff basic

#endregion

#region emoji

#http://www.unicode.org/emoji/charts/full-emoji-list.html
code C:\scripts\PSEmoji.ps1

ConvertTo-Emoji 0x1F600
Show-Emoji -Start 0x1F600 -Count 25

#endregion

#region ANSI escape

# `e or $([char]0x1b)

# https://en.wikipedia.org/wiki/ANSI_escape_code
# https://leanpub.com/ps7now

Get-PSReadLineOption
code C:\scripts\Update-PSReadline.ps1

"`e[92mIsn't this cool!`e[0m"

#make a bit bolder
"`e[1;92mIsn't this cool!`e[0m"

#reverse
"`e[7;92mIsn't this cool!`e[0m"

#string object
"`e[7;92mIsn't this cool!`e[0m" | Get-Member

#includes the escape code
"`e[7;92mIsn't this cool!`e[0m"  | Set-Clipboard
notepad #paste

code C:\scripts\AnsiGreeting.ps1

#endregion

#region My functions

Add-Border "Hello World"

Add-Border "Hello World" -ANSIText "`e[92m"
Add-Border "Hello World" -ANSIText "`e[92m" -Character $PSSpecialChar.WhiteCircle -ANSIBorder "`e[38;5;200m"

Add-Border -textblock (Get-PSWho -AsString) -ANSIBorder "`e[38;5;225m" -Character "="

New-ANSIBar -range (232..255)
New-ANSIBar -Range (40..51) -Gradient -Spacing 3 -Character blacksquare
New-RedGreenGradient
New-RedGreenGradient -Percent .55

code $PSSamplePath\Get-Status.ps1
code $PSSamplePath\ProcessPercent.ps1

#my PS7 prompt when using Windows Terminal
code C:\scripts\ps7terminal-prompt.ps1

#endregion

PSEmoji.ps1

#These commands work best in a PowerShell session running in Windows Terminal.

# http://www.unicode.org/emoji/charts/full-emoji-list.html


Function ConvertTo-Emoji {
    [cmdletbinding()]
    [alias("cte")]
    Param(
        [parameter(Position = 0, Mandatory, ValueFromPipeline, HelpMessage = "Specify a value like 0x1F499 or 128153")]
        [int]$Value
    )
    Process {
        if ($env:wt_Session -OR ($host.name -match "studio")) {
            [char]::convertfromutf32($Value)
        }
        else {
            Write-Warning 'This command is only supported when running in Windows Terminal at this time.'
        }
    }
}
Function Show-Emoji {
    [cmdletbinding()]
    Param(
    [parameter(Position = 0, Mandatory,HelpMessage = "Enter the starting Unicode value")]
    [int32]$Start,
    [Parameter(HelpMessage = "How many items do you want to display?")]
    [int]$Count = 20
    )
    Write-verbose "Starting at $Start and getting $count items"
    $counter = 1

    Do {

        for ($i=1;$i -le 5;$i++) {
             write-verbose "Counter = $counter i = $i"
            $item = "{0} {1}  " -f (ConvertTo-Emoji ($start)),$start
            if ($counter -le $count) {
                write-host $item -NoNewline
                $counter++
                $start++
            }
        }
        write-host "`r"
    } until ($counter -ge $count)
}

#show-emoji 0x1F600 -Count 20

RotateHead.ps1

#rotate the bottom right graphic in a Windows Terminal

[CmdletBinding()]
Param()

#get the path to the WindowsTerminal settings file
$termProfile = (Get-Item -path "$env:localappdata\Packages\Microsoft.WindowsTerminal_*\LocalState\settings.json").FullName

Write-Verbose "Using settings file $TermProfile"
#define an array of images
$pics = (Get-Childitem c:\users\$env:username\onedrive\terminalthumbs).FullName
write-Verbose "Found $($pics.count) image files"

#get the raw json contents
$raw = Get-Content -path $termProfile -Raw

Write-Verbose "Creating a PowerShell object from the raw data"
$json  = Convertfrom-json -InputObject $raw

#find the current background image in the specified profile
#$current = ($json.profiles.list).where( { $_.guid -eq '{18b5ce4a-c242-46f0-980a-ffd888901802}' }).backgroundImage.replace("\", "\\")
$current = ($json.profiles.list).where( { $_.name -eq 'PowerShell 7' }).backgroundImage.replace("\", "\\")
Write-Verbose "Current image is $Current"

if ($current) {

    #get a random new graphic
    $new = ($pics | Get-Random).replace("\", "\\")
    Write-Verbose "Replacing with $new"
    #replace the old file with the new.
    #There is an assumption that you aren't using the same image in multiple profiles
    Write-Verbose "Replacing json data"
    $raw.Replace($current,$new) | Set-Content -Path $termProfile
}
else {
    Write-Warning "No current background image found"
}

Write-Verbose "RotateHead complete."

Update-PSReadline.ps1

#Update some of the PSReadline color settings to make them easier to read

# https://en.wikipedia.org/wiki/ANSI_escape_code

if ($IsCoreCLR) {
    $esc = "`e"
}
else {
    $esc = $([char]0x1b)
}

Set-PSReadLineOption -Colors @{
    Parameter = "$esc[96m"
    Operator  = "$esc[38;5;47m"
    Comment   = "$esc[92m"
    String    = "$esc[38;5;51m"
}

#make error messages green
$host.PrivateData.ErrorForegroundColor = "green"