<#
.SYNOPSIS
  Локальный релиз: бамп версии -> коммит -> тег -> push -> сборка -> upload в Gitea.

.DESCRIPTION
  Single-command release flow.

  Каждый релиз публикует артефакты в ТРИ места:
    1. Тег vX.Y.Z (исторический архив + changelog)
    2. Тег update-channel (фиксированный URL для auto-updater)
    3. Bridge-теги, указанные в -BridgeTags (для миграции пользователей со
       старых версий, у которых запечён старый publish.url).

  После того как все пользователи получили версию с новым (фиксированным)
  publish.url, аргумент -BridgeTags можно перестать указывать.

.PARAMETER Bump
  Какую часть semver инкрементировать: patch (по умолчанию), minor, major.

.PARAMETER Version
  Точная версия (напр. "0.5.1"). Если задана, -Bump игнорируется.

.PARAMETER SkipBuild
  Пропустить сборку (если уже собрано вручную, .exe лежит в release/).

.PARAMETER BridgeTags
  Список старых тегов, в которые нужно ТАКЖЕ перезалить новые артефакты,
  чтобы пользователи на этих версиях нашли апдейт. Например: v0.4.0,v0.5.0.

.PARAMETER DryRun
  Показать что произойдёт, ничего не делая.

.EXAMPLE
  pwsh scripts/release.ps1 -Bump patch
  pwsh scripts/release.ps1 -Version 0.5.1 -BridgeTags v0.4.0,v0.5.0

.NOTES
  Требует GITEA_TOKEN с правом write:repository.
  Канал 'update-channel' должен существовать на Gitea (создаётся однократно).
#>
param(
  [ValidateSet('patch', 'minor', 'major')]
  [string]$Bump = 'patch',
  [string]$Version,
  [switch]$SkipBuild,
  [string[]]$BridgeTags = @(),
  [switch]$DryRun
)

$ErrorActionPreference = 'Stop'

$repoOwner = 'AnRil'
$repoName  = 'laude'
$giteaHost = 'git.xn--90adajar8af4h.xn--p1ai'
$channelTag = 'update-channel'

# --- Pre-flight ----------------------------------------------------------
$root = Resolve-Path (Join-Path $PSScriptRoot '..')
Set-Location $root

if (-not $env:GITEA_TOKEN -and -not $DryRun) {
  Write-Error 'GITEA_TOKEN not set.'
  exit 1
}

$status = git status --porcelain
if ($status) {
  Write-Error "Uncommitted changes. Commit or stash first."
  exit 1
}

$branch = git rev-parse --abbrev-ref HEAD
if ($branch -ne 'main') {
  Write-Warning "Branch is $branch, not main. Press Enter to continue or Ctrl+C to cancel."
  Read-Host
}

# --- Compute next version ------------------------------------------------
$pkg = Get-Content package.json | ConvertFrom-Json
$current = $pkg.version

if ($Version) {
  $next = $Version
} else {
  $parts = $current.Split('.')
  $major = [int]$parts[0]; $minor = [int]$parts[1]; $patch = [int]$parts[2]
  switch ($Bump) {
    'major' { $major++; $minor = 0; $patch = 0 }
    'minor' { $minor++; $patch = 0 }
    'patch' { $patch++ }
  }
  $next = "$major.$minor.$patch"
}

$tag = "v$next"
Write-Host ""
Write-Host "Release plan" -ForegroundColor Cyan
Write-Host "  current      : v$current"
Write-Host "  next         : $tag"
Write-Host "  publish into : $tag, $channelTag$(if ($BridgeTags) { ', ' + ($BridgeTags -join ', ') })"
Write-Host ""

if ($DryRun) {
  Write-Host '(dry run - exiting)' -ForegroundColor Yellow
  exit 0
}

# --- Bump package.json --------------------------------------------------
# IMPORTANT: read+write as UTF-8 WITHOUT BOM. PS5.1 defaults will (a) read the
# file as CP1251 and mangle non-ASCII chars like em-dash, and (b) write back
# with a BOM that breaks PostCSS / electron-builder reads of package.json.
Write-Host "Bumping package.json to $next..." -ForegroundColor Cyan
$pkgPath = Join-Path $root 'package.json'
$utf8NoBom = New-Object System.Text.UTF8Encoding $false
$pkgJson = [System.IO.File]::ReadAllText($pkgPath, $utf8NoBom)
$pkgJson = $pkgJson -replace "`"version`":\s*`"$current`"", "`"version`": `"$next`""
[System.IO.File]::WriteAllText($pkgPath, $pkgJson, $utf8NoBom)

git add package.json
git commit -m "chore(release): $tag"

# --- Quality gates ------------------------------------------------------
if (-not $SkipBuild) {
  Write-Host "Typecheck..." -ForegroundColor Cyan
  npm run typecheck
  if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }

  Write-Host "Tests..." -ForegroundColor Cyan
  npm run test:run
  if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }

  Write-Host "Building installer..." -ForegroundColor Cyan
  npm run dist
  if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
}

# --- Verify artifacts ---------------------------------------------------
$installer = Join-Path 'release' "Exercise-Reminder-Setup-$next.exe"
$blockmap  = "$installer.blockmap"
$manifest  = Join-Path 'release' 'latest.yml'
foreach ($f in @($installer, $blockmap, $manifest)) {
  if (-not (Test-Path $f)) {
    Write-Error "Artifact missing: $f"
    exit 1
  }
}

# --- Tag + push ---------------------------------------------------------
Write-Host "Tagging $tag and pushing..." -ForegroundColor Cyan
git tag -a $tag -m "Release $tag"
git push origin main
git push origin $tag

# --- Upload to all target releases --------------------------------------
$uploadScript = Join-Path $PSScriptRoot 'upload-release-assets.ps1'

$targets = @($tag, $channelTag) + $BridgeTags
foreach ($target in $targets) {
  Write-Host ""
  Write-Host "==> Uploading $next artifacts into release '$target'" -ForegroundColor Cyan
  & powershell -ExecutionPolicy Bypass -File $uploadScript -Tag $target -AssetVersion $next
  if ($LASTEXITCODE -ne 0) {
    Write-Error "Upload to '$target' failed (exit $LASTEXITCODE)"
    exit $LASTEXITCODE
  }
}

$releaseUrl = "https://$giteaHost/$repoOwner/$repoName/releases/tag/$tag"
Write-Host ""
Write-Host "Release published" -ForegroundColor Green
Write-Host "  $releaseUrl"
Write-Host ""
Write-Host "Auto-updater will pick up the new version within ~1 hour on all installed copies."