install.ps1

# install.ps1 - install templit on Windows
# Run from the repo root:
#   Unblock-File -Path .\install.ps1
#   .\install.ps1
#Requires -Version 5.1
[CmdletBinding()]
param()

Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"

# helpers

function Write-Ok {
    param([string]$Msg)
    Write-Host "  $([char]0x2713) $Msg" -ForegroundColor Green
}

function Write-Err {
    param([string]$Msg)
    Write-Host "  $([char]0x2717) $Msg" -ForegroundColor Red
    exit 1
}

function Write-Info {
    param([string]$Msg)
    Write-Host "  . $Msg" -ForegroundColor Cyan
}

function Write-Warn {
    param([string]$Msg)
    Write-Host "  ! $Msg" -ForegroundColor Yellow
}

function Write-Banner {
    Write-Host ""
    Write-Host "  templit installer" -ForegroundColor Cyan
    Write-Host "  ------------------------------" -ForegroundColor DarkGray
    Write-Host ""
}

# config

$InstallDir = Join-Path $env:USERPROFILE ".templit"
$ScriptDir  = $PSScriptRoot

# checks

Write-Banner
Write-Info "Checking requirements..."

$PythonCmd = $null
foreach ($candidate in @("python", "python3", "py")) {
    try {
        $ver = & $candidate --version 2>&1
        if ($ver -match "Python (\d+)\.(\d+)") {
            $major = [int]$Matches[1]
            $minor = [int]$Matches[2]
            if ($major -ge 3 -and $minor -ge 9) {
                $PythonCmd = $candidate
                Write-Ok "Python $major.$minor ($candidate)"
                break
            }
        }
    }
    catch {
        # candidate not found, try next
    }
}

if (-not $PythonCmd) {
    Write-Err "Python 3.9+ not found. Download it from https://python.org"
}

# virtualenv

Write-Info "Creating virtualenv at $InstallDir ..."
if (Test-Path $InstallDir) {
    Write-Warn "Directory $InstallDir already exists - reinstalling into it."
}

& $PythonCmd -m venv $InstallDir
if ($LASTEXITCODE -ne 0) {
    Write-Err "Failed to create virtualenv."
}
Write-Ok "Virtualenv ready"

# install package

$Pip = Join-Path $InstallDir "Scripts\pip.exe"

Write-Info "Upgrading pip..."
& $Pip install --quiet --upgrade pip
if ($LASTEXITCODE -ne 0) {
    Write-Err "pip upgrade failed."
}

Write-Info "Installing templit..."
& $Pip install --quiet -e $ScriptDir
if ($LASTEXITCODE -ne 0) {
    Write-Err "templit installation failed."
}
Write-Ok "Package installed"

# add to PATH

$BinDir      = Join-Path $InstallDir "Scripts"
$UserScope   = [System.EnvironmentVariableTarget]::User
$CurrentPath = [System.Environment]::GetEnvironmentVariable("PATH", $UserScope)

if ($CurrentPath -notlike "*$BinDir*") {
    Write-Info "Adding $BinDir to user PATH..."
    [System.Environment]::SetEnvironmentVariable(
        "PATH",
        "$BinDir;$CurrentPath",
        $UserScope
    )
    Write-Ok "Added to user PATH"
    Write-Warn "Open a new terminal for the PATH change to take effect."
}
else {
    Write-Ok "$BinDir is already in user PATH"
}

$env:PATH = "$BinDir;$env:PATH"

# done

Write-Host ""
Write-Host "  All done! " -ForegroundColor Green -NoNewline
Write-Host "Run: " -NoNewline
Write-Host "templit list" -ForegroundColor White
Write-Host "  (or open a new terminal if the command isn't found yet)" -ForegroundColor DarkGray
Write-Host ""