$ConfigUrl = 'https://10.0.1.1/config.json'

$ServerIp = (curl icanhazip.com).Content.trim()

# Load config.
try{
  $Config = ConvertFrom-Json (Invoke-WebRequest -Uri $ConfigUrl -UseBasicParsing).Content
}
catch [System.Net.WebException],[System.Exception]{
  exit
}

# Config has been loaded. Declare functions.
function Log($LogText){
  Write-Output "[$([System.DateTime]::Now)] $($LogText)." | Out-File -Append -FilePath "$($Config.Details.ConfigPath)\UptimeLog.txt"
}

# Check to see if license matches for the domain.
if ($Config.Details.ServerIp -eq $ServerIp){
  # Log("IP matches the one in the license.")
}
else{
  Log("IP doesn't match license!")
}

$TestUrl = "http://$($Config.Details.ServerIp)/api?f=$($Config.Details.FileId)&token=$($Config.Details.Token)"

$ConfigPath = "$($Config.Details.ConfigPath)\config\config.js"

Set-Location -Path $Config.Details.ConfigPath

# Phase I - Check if Api is responsive.
try{
  $ApiContent = (Invoke-WebRequest $TestUrl).Content
}
catch [System.Net.WebException],[System.Exception]{
  $ApiContent = 0
}
if ($ApiContent -match 'DRIVE_STREAM'){
  # Log("Script is running fine!")
  exit
}
else{
  if ($ApiContent -like "Cannot read property 'split' of undefined"){
    Log("Bandwidth limit crossed.")
  }
  elseif ($ApiContent -like "Navigation timed out after 30000 ms"){
    Log("Server is too slow.")
  }
  else{
    Log("Script may not be able to login! Error:")
    Log($ApiContent)
  }
  
  Get-Process -Name node, electron | Stop-Process
  
  # Phase II - Change e-mail.

  $ConfigContent = Get-Content $ConfigPath
  $CurrentEmail = (($ConfigContent -match 'email') -split "'")[1]
  $CurrentPassword = (($ConfigContent -match 'password') -split "'")[1]

  foreach ($item in $Config.Accounts){
    if ($item.Email -match $CurrentEmail){
      if ($item.Email -eq $Config.Accounts.Email[-1]){
        $NewEmail = $Config.Accounts.Email[0]
        $NewPassword = $Config.Accounts.Password[0]
      }
      else{
        $NewEmail = $Config.Accounts.Email[[array]::IndexOf($Config.Accounts.Email,$CurrentEmail) + 1]
        $NewPassword = $Config.Accounts.Password[[array]::IndexOf($Config.Accounts.Email,$CurrentEmail) + 1]
      }
    }
  }
  $ConfigContent | ForEach-Object { $_.replace($CurrentEmail, $NewEmail).replace($CurrentPassword, $NewPassword) } | Out-File $ConfigPath -Encoding default

  # Phase III - Restart forever.

  Start-Process forever -ArgumentList 'start server.js'
}