#Requires -Version 5.1
<#
.SYNOPSIS
  Rewrite cross-repo git host URLs in tracked text files for the target remote.
.PARAMETER Target
  kalinamall | home | papatramp | github
#>
param(
    [Parameter(Mandatory = $true)]
    [ValidateSet('github', 'kalinamall', 'home', 'papatramp')]
    [string]$Target,

    [string]$Root = (Get-Location).Path
)

$ErrorActionPreference = 'Stop'
$Root = (Resolve-Path $Root).Path
Set-Location $Root

if ($Target -eq 'home') { $Target = 'papatramp' }

switch ($Target) {
    'github' {
        $Base = 'https://github.com/PTah'
        $BlobSuffix = '/blob/main'
    }
    'kalinamall' {
        $Base = 'https://git.kalinamall.ru/PapaTramp'
        $BlobSuffix = '/src/branch/main'
    }
    'papatramp' {
        $Base = 'https://git.papatramp.ru/PapaTramp'
        $BlobSuffix = '/src/branch/main'
    }
}

$BaseHost = $Base -replace '^https://', ''
$sshTo = switch ($Target) {
    'github' { 'https://git.papatramp.ru/PapaTramp/' }
    'kalinamall' { 'ssh://git@git.papatramp.ru:2222/PapaTramp/' }
    default { 'ssh://git@git.papatramp.ru:2222/PapaTramp/' }
}

$patterns = @(
    @{ From = 'https://github\.com/PTah/([^)/''"\s]+)/blob/main/'; To = "$Base/`${1}$BlobSuffix/" }
    @{ From = 'https://github\.com/PTah/([^)/''"\s]+)/src/branch/main/'; To = "$Base/`${1}$BlobSuffix/" }
    @{ From = 'https://git\.kalinamall\.ru/PapaTramp/([^)/''"\s]+)/blob/main/'; To = "$Base/`${1}$BlobSuffix/" }
    @{ From = 'https://git\.kalinamall\.ru/PapaTramp/([^)/''"\s]+)/src/branch/main/'; To = "$Base/`${1}$BlobSuffix/" }
    @{ From = 'https://git\.papatramp\.ru/PapaTramp/([^)/''"\s]+)/src/branch/main/'; To = "$Base/`${1}$BlobSuffix/" }
    @{ From = 'https://git\.papatramp\.ru/PTah/([^)/''"\s]+)/src/branch/main/'; To = "$Base/`${1}$BlobSuffix/" }
    @{ From = 'https://github\.com/PTah/'; To = "$Base/" }
    @{ From = 'https://git\.kalinamall\.ru/PapaTramp/'; To = "$Base/" }
    @{ From = 'https://git\.papatramp\.ru/PapaTramp/'; To = "$Base/" }
    @{ From = 'https://git\.papatramp\.ru/PTah/'; To = "$Base/" }
    @{ From = 'ssh://git@git\.kalinamall\.ru:2222/PapaTramp/'; To = $sshTo }
    @{ From = 'ssh://git@git\.papatramp\.ru:2222/PapaTramp/'; To = $sshTo }
    @{ From = 'github\.com/PTah/'; To = "$BaseHost/" }
    @{ From = 'git\.kalinamall\.ru/PapaTramp/'; To = "$BaseHost/" }
    @{ From = 'git\.papatramp\.ru/PapaTramp/'; To = "$BaseHost/" }
    @{ From = 'git\.papatramp\.ru/PTah/'; To = "$BaseHost/" }
)

$extensions = @('*.md', '*.json', '*.service', '*.example', '*.sh', '*.ps1', '*.yml', '*.yaml', '*.txt', '*.kt', '*.kts', '*.xml', '*.html', '*.css', '*.ts', '*.vue', '*.py')
$files = @()
if (Test-Path (Join-Path $Root '.git')) {
    $files = @(git -C $Root ls-files $extensions 2>$null | Where-Object { $_ -and (Test-Path (Join-Path $Root $_)) })
}
if ($files.Count -eq 0) {
    $files = @(Get-ChildItem -Path $Root -Recurse -File -Include $extensions |
        Where-Object { $_.FullName -notmatch '\\(\.git|node_modules|\.venv|venv|dist|build)\\' } |
        ForEach-Object { $_.FullName.Substring($Root.Length).TrimStart('\', '/') })
}

$n = 0
foreach ($file in $files) {
    $path = Join-Path $Root $file
    $content = [System.IO.File]::ReadAllText($path)
    $updated = $content
    foreach ($p in $patterns) {
        $updated = [regex]::Replace($updated, $p.From, $p.To)
    }
    if ($updated -ne $content) {
        # UTF-8 BOM for .ps1 (Windows PS 5.1); otherwise UTF-8 no BOM
        $bom = ($path -match '\.(ps1|psm1)$')
        [System.IO.File]::WriteAllText($path, $updated, [System.Text.UTF8Encoding]::new($bom))
        Write-Output "updated: $file"
        $n++
    }
}

Write-Output "Rewrite-GitHostUrls: target=$Target base=$Base files_changed=$n"