<#
.SYNOPSIS
	Configures the user settings for Git 
.DESCRIPTION
	This script configures the user settings for Git.
.PARAMETER FullName
	Specifies the user's full name
.PARAMETER EmailAddress
	Specifies the user's email address
.PARAMETER FavoriteEditor
	Specifies the user's favorite text editor
.EXAMPLE
	PS> ./configure-git
.NOTES
	Author: Markus Fleschutz · License: CC0
.LINK
	https://github.com/fleschutz/PowerShell
#>

param([string]$FullName = "", [string]$EmailAddress = "", [string]$FavoriteEditor = "")

try {
	if ($FullName -eq "") { $FullName = read-host "Enter your full name" }
	if ($EmailAddress -eq "") { $EmailAddress = read-host "Enter your e-mail address"}
	if ($FavoriteEditor -eq "") { $FavoriteEditor = read-host "Enter your favorite text editor (emacs,nano,vi,vim,...)" }

	"👉 Searching for Git executable... [step 1/3]"
	& git --version
	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }

	"👉 Configuring basic settings... [step 2/3]"
	& git config --global user.name $FullName
	& git config --global user.email $EmailAddress
	& git config --global core.editor $FavoriteEditor
	& git config --global core.autocrlf false
	& git config --global core.symlinks true
	& git config --global core.longpaths true
	& git config --global http.sslVerify false
	& git config --global init.defaultBranch main
	& git config --global merge.renamelimit 99999
	& git config --global pull.rebase false
	if ($lastExitCode -ne "0") { throw "'git config' failed" }

	"👉 Adding basic shortcuts (git st, git ls, etc.)... [step 3/3]"
	& git config --global alias.co "checkout"
	& git config --global alias.br "branch"
	& git config --global alias.ci "commit"
	& git config --global alias.st "status"
	& git config --global alias.pl "pull --recurse-submodules"
	& git config --global alias.ps "push"
	& git config --global alias.mrg "merge --no-commit --no-ff"
	& git config --global alias.chp "cherry-pick --no-commit"
	& git config --global alias.ls "log -n20 --pretty=format:'%Cred%h%Creset%C(yellow)%d%Creset %s %C(bold blue)by %an%Creset %C(green)%cr%Creset' --abbrev-commit"
	& git config --global alias.smu "submodule update --init"
	if ($lastExitCode -ne "0") { throw "'git config' failed" }

	"✔️ saved your Git configuration, it's now:"
	& git config --list
	if ($lastExitCode -ne "0") { throw "'git config --list' failed" }
	exit 0 # success
} catch {
	"⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))"
	exit 1
}