# apply-brightness.ps1 — one-click: install bt-brightness + sudoers via USB/adb.
# Usage: plug device, then run apply.cmd
param([string]$Adb)

$ErrorActionPreference = 'Continue'
$Here = Split-Path -Parent $MyInvocation.MyCommand.Path
$Scripts = Join-Path $Here 'scripts'

function Log($m)  { Write-Host "[brightness] $m" -ForegroundColor Green }
function Warn($m) { Write-Host "[warn] $m" -ForegroundColor Yellow }
function Die($m)  {
    Write-Host "[error] $m" -ForegroundColor Red
    Read-Host 'Press Enter'
    exit 1
}
function AdbOut([string[]]$ArgList) {
    (& $Adb @ArgList 2>$null | Out-String)
}

if (-not $Adb) {
    $cand = Join-Path $Here 'bin\adb.exe'
    if (Test-Path $cand) { $Adb = $cand } else { $Adb = 'adb' }
}
if (-not (Get-Command $Adb -ErrorAction SilentlyContinue)) {
    Die 'adb not found. Put adb.exe into .\bin\'
}

foreach ($s in @('bt-brightness', 'buttontask.sudoers', 'install-on-device.sh')) {
    $p = Join-Path $Scripts $s
    if (-not (Test-Path $p)) { Die "missing scripts\$s" }
}

& $Adb start-server 2>$null | Out-Null
Write-Host '[brightness] Connect the device via USB...' -ForegroundColor Cyan
$n = 0
for ($i = 0; $i -lt 60; $i++) {
    $n = (@(& $Adb devices) | Select-Object -Skip 1 | Where-Object { $_ -match '\sdevice$' }).Count
    if ($n -eq 1) { break }
    Start-Sleep -Seconds 1
}
if ($n -ne 1) { Die "need exactly one adb device (found: $n)" }

& $Adb root 2>$null | Out-Null
& $Adb wait-for-device
$uid = (AdbOut @('shell', 'id -u')).Trim()
if ($uid -eq '0') {
    $sudo = ''
    Log 'adb shell is root'
} else {
    $sudo = 'sudo '
    Warn "adb shell uid=$uid - using sudo"
}

$remote = '/tmp/bt-brightness-apply'
Log 'pushing helpers...'
& $Adb shell 'rm -rf /tmp/bt-brightness-apply'
& $Adb shell 'mkdir -p /tmp/bt-brightness-apply'
& $Adb push (Join-Path $Scripts 'bt-brightness') '/tmp/bt-brightness-apply/bt-brightness' | Out-Null
& $Adb push (Join-Path $Scripts 'buttontask.sudoers') '/tmp/bt-brightness-apply/buttontask.sudoers' | Out-Null
& $Adb push (Join-Path $Scripts 'install-on-device.sh') '/tmp/bt-brightness-apply/install-on-device.sh' | Out-Null
$upd = Join-Path $Scripts 'bt-update'
if (Test-Path $upd) {
    & $Adb push $upd '/tmp/bt-brightness-apply/bt-update' | Out-Null
}

Log 'installing on device...'
$cmd = ($sudo + 'bash /tmp/bt-brightness-apply/install-on-device.sh /tmp/bt-brightness-apply').Trim()
$output = (& $Adb shell $cmd 2>&1 | Out-String)
Write-Host ($output -replace "`r", '')
if ($output -notmatch 'BRIGHTNESS-OK') {
    Die 'install failed (no BRIGHTNESS-OK). See output above.'
}

& $Adb shell 'rm -rf /tmp/bt-brightness-apply' 2>$null | Out-Null

Log 'restarting services...'
$restart = ($sudo + 'systemctl restart buttontask-web buttontask').Trim()
& $Adb shell $restart 2>&1 | Out-Null
Start-Sleep -Seconds 2

Write-Host ''
Write-Host '  ========================================' -ForegroundColor Green
Write-Host '   DONE. Brightness ready in web / Qt UI.' -ForegroundColor Green
Write-Host '  ========================================' -ForegroundColor Green
Write-Host ''
Read-Host 'Press Enter to exit'