# Push .env, Caddyfile, and docker-compose.yml to valhalla, then apply them
# to the live Docker stack.
#
# On valhalla, `dc` is aliased (in ~/.bashrc) to:
#   docker-compose -f ~/htpc-download-box/docker-compose.yml --env-file ~/htpc-download-box/.env
# It's a shell alias, so we invoke it over SSH with `bash -ic` to load it.
#
# Usage (flags combine; no flags = push & apply all three):
#   powershell -File apply-compose.ps1             # .env + Caddyfile + compose
#   powershell -File apply-compose.ps1 -EnvFile    # .env only
#   powershell -File apply-compose.ps1 -Caddy      # Caddyfile only + hot-reload Caddy
#   powershell -File apply-compose.ps1 -Compose    # docker-compose.yml only + pull + up -d

param(
    [switch]$Compose,
    [switch]$Caddy,
    [switch]$EnvFile
)

$ErrorActionPreference = "Stop"
# Make a non-zero exit from scp/ssh abort the script instead of silently continuing.
$PSNativeCommandUseErrorActionPreference = $true

$server       = "ginnoir@valhalla"
$composeLocal = Join-Path $PSScriptRoot "docker-compose.yml"
$caddyLocal   = Join-Path $PSScriptRoot "Caddyfile"
$envLocal     = Join-Path $PSScriptRoot ".env"

# Default (no flags): push everything.
if (-not $Compose -and -not $Caddy -and -not $EnvFile) {
    $EnvFile = $true; $Caddy = $true; $Compose = $true
}

if ($EnvFile) {
    Write-Host "Pushing .env ..."
    scp $envLocal "${server}:~/htpc-download-box/.env"
}

if ($Caddy) {
    Write-Host "Pushing Caddyfile ..."
    scp $caddyLocal "${server}:/config/caddy/Caddyfile"
    Write-Host "Reloading Caddy ..."
    ssh $server "bash -ic 'dc exec caddy caddy reload --config /etc/caddy/Caddyfile'"
}

if ($Compose) {
    Write-Host "Pushing docker-compose.yml ..."
    scp $composeLocal "${server}:~/htpc-download-box/docker-compose.yml"
    Write-Host "Pulling latest images ..."
    ssh $server "bash -ic 'dc pull'"
    Write-Host "Applying compose changes (recreates only changed containers) ..."
    ssh $server "bash -ic 'dc up -d'"
}

Write-Host "Done."