# ============================================
# Script de Automação Git para PlatformSistemas
# Branch: frontend_React
# Remote: https://git.itguys.com.br/itguys_dev/Workspace
# ============================================
# Este script monitora alterações no projeto e realiza commits/push automáticos.
# Inclui debounce, filtragem inteligente e build automático.

# Configurações
$BRANCH_NAME = "frontend_React"
$DEBOUNCE_SECONDS = 10  # Aguarda 10 segundos após última alteração antes de commitar
$BUILD_ENABLED = $true   # Define se deve executar build antes do commit

# Variáveis de controle de debounce
$script:LastChangeTime = Get-Date
$script:PendingChanges = $false
$script:ChangedFiles = @()

# Configuração do FileSystemWatcher
$Watcher = New-Object IO.FileSystemWatcher
$Watcher.Path = $PSScriptRoot
$Watcher.Filter = "*.*"
$Watcher.IncludeSubdirectories = $true
$Watcher.EnableRaisingEvents = $true
$Watcher.NotifyFilter = [System.IO.NotifyFilters]::FileName -bor 
[System.IO.NotifyFilters]::DirectoryName -bor 
[System.IO.NotifyFilters]::LastWrite

# Função para verificar se o arquivo deve ser ignorado
function Test-ShouldIgnoreFile {
    param([string]$FilePath)
    
    $ignorePatterns = @(
        "node_modules",
        ".git",
        "dist",
        ".env",
        ".log",
        "package-lock.json",
        ".tmp",
        ".cache",
        ".vscode",
        ".idea",
        "*.swp",
        "*~"
    )
    
    foreach ($pattern in $ignorePatterns) {
        if ($FilePath -match [regex]::Escape($pattern)) {
            return $true
        }
    }
    
    return $false
}

# Função para processar commit e push
function Invoke-GitSync {
    if (-not $script:PendingChanges) { return }
    
    Write-Host "`n========================================" -ForegroundColor Cyan
    Write-Host "Iniciando sincronização Git..." -ForegroundColor Cyan
    Write-Host "========================================" -ForegroundColor Cyan
    
    try {
        # Verifica se há alterações para commitar
        $gitStatus = git status --porcelain
        if ([string]::IsNullOrWhiteSpace($gitStatus)) {
            Write-Host "Nenhuma alteração para commitar." -ForegroundColor Yellow
            $script:PendingChanges = $false
            $script:ChangedFiles = @()
            return
        }
        
        Write-Host "`nArquivos alterados:" -ForegroundColor Gray
        $script:ChangedFiles | ForEach-Object { Write-Host "  - $_" -ForegroundColor DarkGray }
        
        # Build de produção (se habilitado)
        if ($BUILD_ENABLED) {
            Write-Host "`nGerando build de produção..." -ForegroundColor Yellow
            $buildOutput = npm run build 2>&1
            if ($LASTEXITCODE -ne 0) {
                Write-Host "Erro no build! Abortando commit." -ForegroundColor Red
                Write-Host $buildOutput -ForegroundColor Red
                return
            }
            Write-Host "Build concluído com sucesso!" -ForegroundColor Green
        }
        
        # Git add
        Write-Host "`nAdicionando arquivos ao stage..." -ForegroundColor Yellow
        git add .
        
        # Git commit
        $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
        $fileCount = ($script:ChangedFiles | Measure-Object).Count
        $commitMessage = "Auto-deploy: $timestamp | $fileCount arquivo(s) alterado(s)"
        
        if ($BUILD_ENABLED) {
            $commitMessage += " [Build included]"
        }
        
        Write-Host "Criando commit..." -ForegroundColor Yellow
        git commit -m $commitMessage
        
        if ($LASTEXITCODE -ne 0) {
            Write-Host "Nada para commitar ou erro no commit." -ForegroundColor Yellow
            $script:PendingChanges = $false
            $script:ChangedFiles = @()
            return
        }
        
        # Git push
        Write-Host "Enviando para o repositório remoto (branch: $BRANCH_NAME)..." -ForegroundColor Yellow
        git push origin $BRANCH_NAME
        
        if ($LASTEXITCODE -eq 0) {
            Write-Host "`n✓ Sincronização concluída com sucesso!" -ForegroundColor Green
            Write-Host "========================================`n" -ForegroundColor Cyan
        }
        else {
            Write-Host "`n✗ Erro ao fazer push para o repositório remoto!" -ForegroundColor Red
            Write-Host "========================================`n" -ForegroundColor Cyan
        }
        
    }
    catch {
        Write-Host "`n✗ Erro ao sincronizar com o Git: $_" -ForegroundColor Red
        Write-Host "========================================`n" -ForegroundColor Cyan
    }
    finally {
        $script:PendingChanges = $false
        $script:ChangedFiles = @()
    }
}

# Action para eventos do FileSystemWatcher
$Action = {
    $path = $Event.SourceEventArgs.FullPath
    $changeType = $Event.SourceEventArgs.ChangeType
    
    # Ignora arquivos/pastas específicos
    if (Test-ShouldIgnoreFile -FilePath $path) { return }
    
    # Registra a alteração
    $relativePath = $path.Replace($PSScriptRoot, "").TrimStart("\")
    Write-Host "[$(Get-Date -Format 'HH:mm:ss')] $changeType : $relativePath" -ForegroundColor DarkCyan
    
    # Atualiza controle de debounce
    $script:LastChangeTime = Get-Date
    $script:PendingChanges = $true
    
    if ($script:ChangedFiles -notcontains $relativePath) {
        $script:ChangedFiles += $relativePath
    }
}

# Registra os eventos
Register-ObjectEvent $Watcher "Changed" -Action $Action | Out-Null
Register-ObjectEvent $Watcher "Created" -Action $Action | Out-Null
Register-ObjectEvent $Watcher "Deleted" -Action $Action | Out-Null
Register-ObjectEvent $Watcher "Renamed" -Action $Action | Out-Null

# Banner inicial
Write-Host "`n" -NoNewline
Write-Host "╔════════════════════════════════════════════════════════════╗" -ForegroundColor Green
Write-Host "║  Git Auto-Sync - PlatformSistemas                          ║" -ForegroundColor Green
Write-Host "╠════════════════════════════════════════════════════════════╣" -ForegroundColor Green
Write-Host "║  Branch: $BRANCH_NAME                              ║" -ForegroundColor Cyan
Write-Host "║  Remote: https://git.itguys.com.br/itguys_dev/Workspace   ║" -ForegroundColor Cyan
Write-Host "║  Debounce: $DEBOUNCE_SECONDS segundos                                    ║" -ForegroundColor Cyan
Write-Host "║  Build automático: $(if($BUILD_ENABLED){'Habilitado'}else{'Desabilitado'})                              ║" -ForegroundColor Cyan
Write-Host "╠════════════════════════════════════════════════════════════╣" -ForegroundColor Green
Write-Host "║  Status: Monitorando alterações...                         ║" -ForegroundColor Yellow
Write-Host "║  Pressione Ctrl+C para parar                               ║" -ForegroundColor Yellow
Write-Host "╚════════════════════════════════════════════════════════════╝" -ForegroundColor Green
Write-Host "`n"

# Loop principal com debounce
while ($true) {
    Start-Sleep -Seconds 1
    
    if ($script:PendingChanges) {
        $timeSinceLastChange = (Get-Date) - $script:LastChangeTime
        
        if ($timeSinceLastChange.TotalSeconds -ge $DEBOUNCE_SECONDS) {
            Invoke-GitSync
        }
    }
}