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# Setup Script =================================================================

# Helpers ----------------------------------------------------------------------
function Write-Log {
    param(
        [Parameter(Mandatory = $true)][string] $Message,
        [ValidateSet("INF", "WRN", "ERR")][string] $Level = "INF"
    )

    $colors = @{ INF = "Blue"; WRN = "Yellow"; ERR = "Red" }

    Write-Host $Level -ForegroundColor $colors[$Level] -NoNewline
    Write-Host " $Message"
}

# Step 1: Check tools availability ---------------------------------------------

$Tools = @("git", "terraform", "terraform-docs", "tflint", "aws", "opa", "python")
$MissingTools = @()
foreach ($Tool in $Tools) {
    if (-not (Get-Command $Tool -ErrorAction SilentlyContinue)) {
        $MissingTools += $Tool
    }
}
if ($MissingTools.Count -gt 0) {
    Write-Log "Missing tool$(if ($MissingTools.Count -gt 1) { 's' }): $($MissingTools -join ', ')" -Level ERR
    exit 1
}

# Step 2: Setup git hooks ------------------------------------------------------

git rev-parse --is-inside-work-tree 2>&1 | Out-Null
if ($LASTEXITCODE -ne 0) {
    Write-Log "Does not appear to be a git repository." -Level ERR
    Write-Log "Skipping git hooks configuration." -Level WRN
}
else {
    git config core.hooksPath hooks
    Write-Log "Git hooks configured."
}