#!/usr/bin/env pwsh
# fix-sln-duplicates.ps1 - Remove duplicate project entries from solution file

param(
    [string]$SlnPath = "src/StellaOps.sln"
)

$ErrorActionPreference = "Stop"

Write-Host "=== Solution Duplicate Cleanup ===" -ForegroundColor Cyan
Write-Host "Solution: $SlnPath"

$content = Get-Content $SlnPath -Raw
$lines = $content -split "`r?`n"

# Track seen project names
$seenProjects = @{}
$duplicateGuids = @()
$newLines = @()
$skipNext = $false

for ($i = 0; $i -lt $lines.Count; $i++) {
    $line = $lines[$i]

    if ($skipNext) {
        $skipNext = $false
        continue
    }

    # Check for project declaration
    if ($line -match 'Project\(.+\) = "([^"]+)",.*\{([A-F0-9-]+)\}"?$') {
        $name = $Matches[1]
        $guid = $Matches[2]

        if ($seenProjects.ContainsKey($name)) {
            Write-Host "Removing duplicate: $name ($guid)" -ForegroundColor Yellow
            $duplicateGuids += $guid
            # Skip this line and the next EndProject line
            $skipNext = $true
            continue
        } else {
            $seenProjects[$name] = $true
        }
    }

    $newLines += $line
}

# Remove GlobalSection references to duplicate GUIDs
$finalLines = @()
foreach ($line in $newLines) {
    $skip = $false
    foreach ($guid in $duplicateGuids) {
        if ($line -match $guid) {
            $skip = $true
            break
        }
    }
    if (-not $skip) {
        $finalLines += $line
    }
}

# Write back
$finalLines -join "`r`n" | Set-Content $SlnPath -Encoding UTF8 -NoNewline

Write-Host ""
Write-Host "Removed $($duplicateGuids.Count) duplicate projects" -ForegroundColor Green