# Deploy this luxtools plugin checkout into a mounted DokuWiki plugins dir.
# Default target is the user's mount path.
#
# Usage:
#   .\deploy.ps1                 # deploy to /thebe/Web/lib/plugins/luxtools/
#   .\deploy.ps1 --dry-run       # show what would change
#   .\deploy.ps1 C:\path\to\luxtools
#   .\deploy.ps1 --no-delete     # don't delete extraneous files at target

$TARGET = "S:\7-Infrastructure\lib\plugins\luxtools"
$DRY_RUN = $false
$DELETE = $true

function Resolve-PathUsingExistingCase {
    param(
        [Parameter(Mandatory = $true)]
        [string]$Path
    )

    $fullPath = [System.IO.Path]::GetFullPath($Path)
    $root = [System.IO.Path]::GetPathRoot($fullPath).TrimEnd('\\')

    if ($fullPath.TrimEnd('\\') -ieq $root) {
        return $root
    }

    $parent = Split-Path -Path $fullPath -Parent
    $leaf = Split-Path -Path $fullPath -Leaf
    $resolvedParent = Resolve-PathUsingExistingCase -Path $parent

    if (Test-Path -LiteralPath $resolvedParent) {
        $match = Get-ChildItem -LiteralPath $resolvedParent -Force -ErrorAction SilentlyContinue |
            Where-Object { $_.Name -ieq $leaf } |
            Select-Object -First 1

        if ($null -ne $match) {
            return (Join-Path -Path $resolvedParent -ChildPath $match.Name)
        }
    }

    return (Join-Path -Path $resolvedParent -ChildPath $leaf)
}

foreach ($arg in $args) {
    if ($arg -eq "--dry-run" -or $arg -eq "-n") {
        $DRY_RUN = $true
        continue
    }

    if ($arg -eq "--no-delete") {
        $DELETE = $false
        continue
    }

    if ($arg -eq "-h" -or $arg -eq "--help") {
        Get-Content $PSCommandPath
        exit 0
    }

    $TARGET = $arg
}

$TARGET = Resolve-PathUsingExistingCase -Path $TARGET

$SRC_DIR = $PSScriptRoot

# Safety checks: make sure source looks like luxtools plugin
if (-not (Test-Path "$SRC_DIR/plugin.info.txt")) {
    Write-Error "Error: '$SRC_DIR' doesn't look like luxtools (missing plugin.info.txt)."
    exit 1
}

# Ensure target dir exists
New-Item -ItemType Directory -Force -Path "$TARGET" | Out-Null

# Safety check: refuse to deploy to an obviously wrong directory.
# Allow empty dir (fresh install) OR existing luxtools plugin dir.
if (Test-Path "$TARGET/plugin.info.txt") {
    $content = Get-Content "$TARGET/plugin.info.txt" -ErrorAction SilentlyContinue
    if ($content -match "^base\s+luxtools" -or $content -match "^base\s+luxtools\s+") {
        # It's a luxtools plugin, allow it
    } else {
        Write-Error "Error: target '$TARGET' has a plugin.info.txt, but it doesn't look like luxtools."
        Write-Error "Refusing to deploy."
        exit 1
    }
}

$EXCLUDE_DIRS = @(
    ".git",
    "_dokuwiki",
    "_agent-data",
    ".github",
    ".vscode",
    "_test"
)

$EXCLUDE_FILES = @(
    "deploy.sh",
    "deleted.files",
    "*.swp",
    "*.swo",
    ".DS_Store"
)

$ROBOCOPY_ARGS = @(
    "$SRC_DIR\",
    "$TARGET\",
    "*",
    "/E",     # copy subdirectories, including empty
    "/XO",    # exclude older files
    "/R:0",   # retry 0 times
    "/W:0",   # wait 0 seconds between retries
    "/MT:8",  # multithreaded with 8 threads
    "/NFL",   # no file list
    "/NDL",   # no directory list
    "/NJH",   # no job header
    "/NJS",   # no job summary
    "/NS",    # no sizes
    "/NP",    # no progress
    "/Z"      # restartable mode
)

if ($EXCLUDE_DIRS.Count -gt 0) {
    $ROBOCOPY_ARGS += "/XD"
    $ROBOCOPY_ARGS += $EXCLUDE_DIRS
}

if ($EXCLUDE_FILES.Count -gt 0) {
    $ROBOCOPY_ARGS += "/XF"
    $ROBOCOPY_ARGS += $EXCLUDE_FILES
}

if ($DRY_RUN) {
    $ROBOCOPY_ARGS += "/L"   # list mode
}

if ($DELETE) {
    $ROBOCOPY_ARGS += "/MIR"  # mirror
}

Write-Host "Deploying luxtools from: $SRC_DIR\"
Write-Host "Deploying luxtools to:   $TARGET\"

robocopy @ROBOCOPY_ARGS

Write-Host "Done."