param(
  [switch]$SkipInfra,
  [switch]$SkipMigrate,
  [switch]$SkipApi,
  [switch]$SkipWeb,
  [switch]$WithGateway,
  [switch]$OnlyMinio
)

$ErrorActionPreference = 'Stop'

$root = Resolve-Path (Join-Path $PSScriptRoot '..')
$logDir = Join-Path $root 'logs'
New-Item -ItemType Directory -Force -Path $logDir | Out-Null

function Test-CommandAvailable {
  param([string]$Name)
  return [bool](Get-Command $Name -ErrorAction SilentlyContinue)
}

function Test-PortOpen {
  param([int]$Port)
  return [bool](Get-NetTCPConnection -LocalPort $Port -State Listen -ErrorAction SilentlyContinue)
}

function Test-TcpPort {
  param(
    [string]$HostName,
    [int]$Port
  )

  try {
    $client = [System.Net.Sockets.TcpClient]::new()
    $connect = $client.BeginConnect($HostName, $Port, $null, $null)
    if (-not $connect.AsyncWaitHandle.WaitOne(1000)) {
      $client.Close()
      return $false
    }
    $client.EndConnect($connect)
    $client.Close()
    return $true
  } catch {
    return $false
  }
}

function Start-LoggedProcess {
  param(
    [string]$Name,
    [string]$FilePath,
    [string[]]$ArgumentList,
    [string]$WorkingDirectory,
    [string]$OutLog,
    [string]$ErrLog
  )

  Write-Host "Starting $Name..."
  Start-Process `
    -FilePath $FilePath `
    -ArgumentList $ArgumentList `
    -WorkingDirectory $WorkingDirectory `
    -RedirectStandardOutput $OutLog `
    -RedirectStandardError $ErrLog `
    -WindowStyle Hidden | Out-Null
}

function Wait-ForTcpPort {
  param(
    [string]$Name,
    [string]$HostName,
    [int]$Port,
    [int]$TimeoutSeconds = 20
  )

  $deadline = (Get-Date).AddSeconds($TimeoutSeconds)
  while ((Get-Date) -lt $deadline) {
    if (Test-TcpPort -HostName $HostName -Port $Port) {
      Write-Host "$Name is listening on ${HostName}:$Port."
      return $true
    }
    Start-Sleep -Milliseconds 500
  }

  Write-Host "$Name is not listening on ${HostName}:$Port after ${TimeoutSeconds}s."
  return $false
}

function Find-LocalPostgresBin {
  $candidates = @(
    'C:\cmpp-platform-local\pgsql\bin',
    'C:\cmpp-platform-local\PostgreSQL16\bin',
    'C:\Program Files\PostgreSQL\16\bin'
  )

  foreach ($candidate in $candidates) {
    if ((Test-Path (Join-Path $candidate 'pg_ctl.exe')) -and (Test-Path (Join-Path $candidate 'pg_isready.exe'))) {
      return $candidate
    }
  }

  $pgCtl = Get-Command 'pg_ctl.exe' -ErrorAction SilentlyContinue
  if ($pgCtl) {
    return Split-Path $pgCtl.Source -Parent
  }

  return $null
}

function Start-LocalPostgres {
  if (Test-TcpPort -HostName '127.0.0.1' -Port 5432) {
    Write-Host 'PostgreSQL is already reachable on 127.0.0.1:5432.'
    return $true
  }

  $pgBin = Find-LocalPostgresBin
  $pgData = 'C:\cmpp-platform-local\postgres-data'
  if (-not $pgBin -or -not (Test-Path (Join-Path $pgData 'PG_VERSION'))) {
    Write-Host 'PostgreSQL is not reachable and no local PostgreSQL data directory was found.'
    Write-Host 'Expected Docker Compose or local data at C:\cmpp-platform-local\postgres-data.'
    return $false
  }

  Write-Host "Starting local PostgreSQL from $pgData..."
  & (Join-Path $pgBin 'pg_ctl.exe') -D $pgData -l (Join-Path $logDir 'postgres.log') start | Out-Host
  Start-Sleep -Seconds 2
  if (Test-Path (Join-Path $pgBin 'pg_isready.exe')) {
    & (Join-Path $pgBin 'pg_isready.exe') -h 127.0.0.1 -p 5432 -U cmpp -d cmpp_platform | Out-Host
  }
  return (Wait-ForTcpPort -Name 'PostgreSQL' -HostName '127.0.0.1' -Port 5432 -TimeoutSeconds 30)
}

function Start-LocalRedis {
  if (Test-TcpPort -HostName '127.0.0.1' -Port 6379) {
    Write-Host 'Redis is already reachable on 127.0.0.1:6379.'
    return $true
  }

  $redisServer = Get-Command 'redis-server' -ErrorAction SilentlyContinue
  if (-not $redisServer) {
    Write-Host 'Redis is not reachable and redis-server was not found in PATH.'
    return $false
  }

  $redisDir = Join-Path $root '.local-data\redis'
  New-Item -ItemType Directory -Force -Path $redisDir | Out-Null

  Start-LoggedProcess `
    -Name 'Redis' `
    -FilePath $redisServer.Source `
    -ArgumentList @('--port', '6379', '--dir', $redisDir, '--dbfilename', 'dump.rdb') `
    -WorkingDirectory $root `
    -OutLog (Join-Path $logDir 'redis.out.log') `
    -ErrLog (Join-Path $logDir 'redis.err.log')

  return (Wait-ForTcpPort -Name 'Redis' -HostName '127.0.0.1' -Port 6379 -TimeoutSeconds 15)
}

function Find-LocalMinio {
  $candidates = @(
    'C:\cmpp-platform-local\minio.exe',
    'C:\cmpp-platform-local\minio\minio.exe'
  )

  foreach ($candidate in $candidates) {
    if (Test-Path $candidate) {
      return $candidate
    }
  }

  $minio = Get-Command 'minio.exe' -ErrorAction SilentlyContinue
  if ($minio) {
    return $minio.Source
  }

  return $null
}

function Start-LocalMinio {
  if ((Test-TcpPort -HostName '127.0.0.1' -Port 9000) -and (Test-TcpPort -HostName '127.0.0.1' -Port 9001)) {
    Write-Host 'MinIO is already reachable on 127.0.0.1:9000/9001.'
    return $true
  }

  $minio = Find-LocalMinio
  if (-not $minio) {
    Write-Host 'MinIO is not reachable and minio.exe was not found.'
    Write-Host 'Expected minio.exe at C:\cmpp-platform-local\minio.exe or in PATH.'
    return $false
  }

  $minioData = 'C:\cmpp-platform-local\minio-data'
  New-Item -ItemType Directory -Force -Path $minioData | Out-Null
  if (-not $env:MINIO_ROOT_USER) {
    $env:MINIO_ROOT_USER = 'cmpp_minio'
  }
  if (-not $env:MINIO_ROOT_PASSWORD) {
    $env:MINIO_ROOT_PASSWORD = 'cmpp_minio_password'
  }

  Start-LoggedProcess `
    -Name 'MinIO' `
    -FilePath $minio `
    -ArgumentList @('server', $minioData, '--address', ':9000', '--console-address', ':9001') `
    -WorkingDirectory (Split-Path $minio -Parent) `
    -OutLog (Join-Path $logDir 'minio.out.log') `
    -ErrLog (Join-Path $logDir 'minio.err.log')

  $apiReady = Wait-ForTcpPort -Name 'MinIO API' -HostName '127.0.0.1' -Port 9000 -TimeoutSeconds 20
  $consoleReady = Wait-ForTcpPort -Name 'MinIO Console' -HostName '127.0.0.1' -Port 9001 -TimeoutSeconds 20
  return ($apiReady -and $consoleReady)
}

function Test-Minio {
  if ((Test-TcpPort -HostName '127.0.0.1' -Port 9000) -and (Test-TcpPort -HostName '127.0.0.1' -Port 9001)) {
    Write-Host 'MinIO ports 9000/9001 are reachable.'
    return $true
  }

  Write-Host 'MinIO is not fully reachable on 9000/9001. File upload smoke may be blocked.'
  return $false
}

Write-Host "CMPP local service startup"
Write-Host "Workspace: $root"

$minioReady = $false
if ($OnlyMinio) {
  $minioReady = Start-LocalMinio
  if (-not $minioReady) {
    exit 1
  }
  Write-Host ''
  Write-Host 'MinIO startup command issued. Useful URLs:'
  Write-Host '  MinIO API:     http://localhost:9000'
  Write-Host '  MinIO Console: http://localhost:9001'
  Write-Host ''
  Write-Host "Logs: $logDir"
  return
}

if (-not $SkipInfra) {
  if (Test-CommandAvailable 'docker') {
    Write-Host "Starting PostgreSQL, Redis and MinIO via Docker Compose..."
    & docker compose -f (Join-Path $root 'infra/docker-compose.yml') up -d
    Wait-ForTcpPort -Name 'PostgreSQL' -HostName '127.0.0.1' -Port 5432 -TimeoutSeconds 30 | Out-Null
    Wait-ForTcpPort -Name 'Redis' -HostName '127.0.0.1' -Port 6379 -TimeoutSeconds 20 | Out-Null
    $minioReady = Test-Minio
  } else {
    Write-Host "Docker CLI is not available. Trying local PostgreSQL and Redis fallback..."
    Start-LocalPostgres | Out-Null
    Start-LocalRedis | Out-Null
    $minioReady = Start-LocalMinio
  }
} else {
  $minioReady = Test-Minio
}

if (-not $minioReady) {
  $localObjectRoot = Join-Path $root '.local-data\object-storage'
  New-Item -ItemType Directory -Force -Path $localObjectRoot | Out-Null
  $env:OBJECT_STORAGE_DRIVER = 'local'
  $env:OBJECT_STORAGE_LOCAL_ROOT = $localObjectRoot
  Write-Host "Object storage fallback enabled: $localObjectRoot"
}

if (-not $SkipInfra -and -not $SkipMigrate -and (Test-TcpPort -HostName '127.0.0.1' -Port 5432)) {
  Write-Host 'Applying Prisma migrations...'
  & npm.cmd --prefix api run prisma:migrate:deploy
}

if (-not $SkipApi) {
  if (Test-PortOpen 3000) {
    Write-Host "API port 3000 is already listening; leaving the existing API process untouched."
  } else {
    Start-LoggedProcess `
      -Name 'NestJS API' `
      -FilePath 'npm.cmd' `
      -ArgumentList @('--prefix', 'api', 'run', 'start:dev') `
      -WorkingDirectory $root `
      -OutLog (Join-Path $logDir 'api-dev.out.log') `
      -ErrLog (Join-Path $logDir 'api-dev.err.log')
  }
}

if (-not $SkipWeb) {
  if ((Test-PortOpen 5173) -or (Test-PortOpen 4173) -or (Test-PortOpen 4174)) {
    Write-Host "A frontend port is already listening on 5173/4173/4174; leaving the existing web process untouched."
  } else {
    Start-LoggedProcess `
      -Name 'frontend preview' `
      -FilePath 'npm.cmd' `
      -ArgumentList @('run', 'dev') `
      -WorkingDirectory $root `
      -OutLog (Join-Path $logDir 'frontend-dev.out.log') `
      -ErrLog (Join-Path $logDir 'frontend-dev.err.log')
  }
}

if ($WithGateway) {
  if (-not (Test-CommandAvailable 'go')) {
    Write-Host "Go CLI is not available. Skipping gateway startup."
  } elseif (Test-PortOpen 8090) {
    Write-Host "Gateway health port 8090 is already listening; leaving the existing gateway process untouched."
  } else {
    Start-LoggedProcess `
      -Name 'Go gateway' `
      -FilePath 'go' `
      -ArgumentList @('run', './cmd/gateway') `
      -WorkingDirectory (Join-Path $root 'gateway') `
      -OutLog (Join-Path $logDir 'gateway.out.log') `
      -ErrLog (Join-Path $logDir 'gateway.err.log')
  }
}

Write-Host ''
Write-Host 'Startup command issued. Useful URLs:'
Write-Host '  API:      http://localhost:3000/api'
Write-Host '  Frontend: http://localhost:5173 or http://localhost:4173'
if ($minioReady) {
  Write-Host '  MinIO:    http://localhost:9001'
} else {
  Write-Host '  MinIO:    not running; using local object storage fallback when API is started by this script'
}
Write-Host ''
Write-Host "Logs: $logDir"