<#
.SYNOPSIS
  Sincronizare de inceput de sesiune pentru un proiect ROA (flux SVN + git text FoxBin2Prg).

.DESCRIPTION
  Pasii:
   1. svn update pe ProjectRoot (include externalul COMUN\). Esec / conflicte -> stop, exit nenul.
   2. git_sync.ps1 -ProjectRoot <ProjectRoot> (improspateaza textele .??2, inclusiv COMUN).
      Esec (exit nenul) -> avertizare, fara commit-uri de sync, exit nenul.
   3. Repo proiect (ProjectRoot\.git): pe main comite "sync SVN r<REV>" daca sunt schimbari.
      Pe alt branch: avertizare si skip commit (nu schimba branch-ul daca are modificari necomise;
      daca working tree-ul e curat face checkout main).
   4. La fel repo COMUN (ProjectRoot\COMUN\.git), cu revizia din svn info pe folderul COMUN.
   5. Inchide branch-urile claude/* terminate (git diff main..branch gol) in ambele repo-uri.
   6. Sumar final.

.PARAMETER ProjectRoot
  Radacina proiectului. Implicit: directorul curent, daca are .git si un .pjx.
#>
[CmdletBinding()]
param(
    [string]$ProjectRoot = ''
)

$ErrorActionPreference = 'Stop'

# --- deduce ProjectRoot din directorul curent daca nu e dat ---
if (-not $ProjectRoot) {
    $cwd = (Get-Location).Path
    $hasGit = Test-Path -LiteralPath (Join-Path $cwd '.git')
    $hasPjx = @(Get-ChildItem -LiteralPath $cwd -Filter '*.pjx' -File -ErrorAction SilentlyContinue).Count -gt 0
    if ($hasGit -and $hasPjx) {
        $ProjectRoot = $cwd
    } else {
        Write-Host "EROARE: -ProjectRoot nedat si directorul curent nu pare radacina de proiect ROA (lipseste .git sau .pjx): $cwd"
        exit 1
    }
}
if (-not (Test-Path -LiteralPath $ProjectRoot -PathType Container)) {
    Write-Host "EROARE: ProjectRoot nu exista: $ProjectRoot"
    exit 1
}
$ProjectRoot = (Get-Item -LiteralPath $ProjectRoot).FullName
$comunRoot   = Join-Path $ProjectRoot 'COMUN'
$gitSync     = Join-Path $PSScriptRoot 'git_sync.ps1'

Write-Host "=== roa_sync: ProjectRoot=$ProjectRoot ==="

# --- helper: revizia SVN a unui folder ---
function Get-SvnRev([string]$path) {
    $rev = (& svn info --show-item revision $path 2>$null | Out-String).Trim()
    if ($LASTEXITCODE -ne 0 -or -not $rev) { return '' }
    return $rev
}

# =========================== 1. svn update ===========================
Write-Host ''
Write-Host "--- 1. svn update ---"
$svnOut = & svn update $ProjectRoot
$svnExit = $LASTEXITCODE
$svnOut | ForEach-Object { Write-Host "  $_" }
if ($svnExit -ne 0) {
    Write-Host "EROARE: svn update a esuat (exit $svnExit). Ma opresc."
    exit 1
}
# svn poate iesi 0 dar raporta conflicte in sumar
if ($svnOut | Where-Object { $_ -match 'Summary of conflicts|conflict' }) {
    Write-Host "EROARE: svn update raporteaza conflicte. Rezolva-le manual, apoi reia. Ma opresc."
    exit 1
}
$rev = Get-SvnRev $ProjectRoot
Write-Host "  Revizie SVN ProjectRoot: $(if($rev){$rev}else{'necunoscuta'})"

# =========================== 2. git_sync ===========================
Write-Host ''
Write-Host "--- 2. git_sync (texte .??2) ---"
if (-not (Test-Path -LiteralPath $gitSync)) {
    Write-Host "EROARE: nu gasesc git_sync.ps1 la $gitSync. Ma opresc."
    exit 1
}
& powershell -ExecutionPolicy Bypass -NoProfile -File $gitSync -ProjectRoot $ProjectRoot
$syncExit = $LASTEXITCODE
if ($syncExit -ne 0) {
    Write-Host ''
    Write-Host "AVERTISMENT: git_sync a raportat esecuri (exit $syncExit). NU fac commit-uri de sync. Ma opresc."
    exit 1
}

# =========================== 3-4. commit sync per repo ===========================
# Sincronizeaza un repo git: pe main comite schimbarile ca "sync SVN r<rev>".
# Intoarce: 'commit' / 'nimic' / 'skip-branch'.
function Sync-Repo {
    param([string]$RepoDir, [string]$Rev, [string]$Label)
    if (-not (Test-Path -LiteralPath (Join-Path $RepoDir '.git'))) {
        Write-Host "  ${Label}: fara repo git ($RepoDir) - sar peste."
        return 'nimic'
    }
    $branch = (& git -C $RepoDir rev-parse --abbrev-ref HEAD).Trim()
    if ($branch -ne 'main') {
        # tree curat = putem trece pe main; altfel nu atingem branch-ul
        $dirty = @(& git -C $RepoDir status --porcelain).Count -gt 0
        if ($dirty) {
            Write-Host "  ${Label}: esti pe '$branch'; sync-ul se face pe main. Ai modificari necomise - sar peste commit."
            return 'skip-branch'
        }
        Write-Host "  ${Label}: pe '$branch' cu tree curat - fac checkout main."
        & git -C $RepoDir checkout main | Out-Null
        if ($LASTEXITCODE -ne 0) {
            Write-Host "  ${Label}: checkout main a esuat - sar peste commit."
            return 'skip-branch'
        }
    }
    & git -C $RepoDir add -A | Out-Null
    $staged = @(& git -C $RepoDir status --porcelain).Count -gt 0
    if (-not $staged) {
        Write-Host "  ${Label}: nimic de sincronizat."
        return 'nimic'
    }
    $msg = if ($Rev) { "sync SVN r$Rev" } else { "sync SVN" }
    & git -C $RepoDir commit -m $msg | Out-Null
    if ($LASTEXITCODE -ne 0) {
        Write-Host "  ${Label}: commit a esuat."
        return 'skip-branch'
    }
    Write-Host "  ${Label}: commit '$msg'."
    return 'commit'
}

Write-Host ''
Write-Host "--- 3. sync repo proiect ---"
$resProj = Sync-Repo -RepoDir $ProjectRoot -Rev $rev -Label 'proiect'

Write-Host ''
Write-Host "--- 4. sync repo COMUN ---"
$revComun = ''
$resComun = 'nimic'
if (Test-Path -LiteralPath $comunRoot -PathType Container) {
    $revComun = Get-SvnRev $comunRoot
    $resComun = Sync-Repo -RepoDir $comunRoot -Rev $revComun -Label 'COMUN'
} else {
    Write-Host "  COMUN: folderul nu exista ($comunRoot) - sar peste."
}

# =========================== 5. inchidere branch-uri claude/* ===========================
# Inchide branch-urile claude/* al caror diff fata de main e gol (munca lor a intrat prin sync).
function Close-ClaudeBranches {
    param([string]$RepoDir, [string]$Label)
    $closed = @(); $active = @()
    if (-not (Test-Path -LiteralPath (Join-Path $RepoDir '.git'))) { return @{ Closed=$closed; Active=$active } }
    $branches = @(& git -C $RepoDir for-each-ref --format='%(refname:short)' refs/heads/claude 2>$null) |
        Where-Object { $_ -and $_.Trim() } | ForEach-Object { $_.Trim() }
    foreach ($b in $branches) {
        $diff = @(& git -C $RepoDir diff --name-only main..$b 2>$null) | Where-Object { $_ -and $_.Trim() }
        if ($diff.Count -eq 0) {
            & git -C $RepoDir branch -D $b | Out-Null
            if ($LASTEXITCODE -eq 0) { $closed += $b; Write-Host "  ${Label}: inchis $b" }
            else { Write-Host "  ${Label}: nu am putut sterge $b" }
        } else {
            $active += $b
            Write-Host "  ${Label}: activ $b ($($diff.Count) fisiere diferite)"
        }
    }
    return @{ Closed=$closed; Active=$active }
}

Write-Host ''
Write-Host "--- 5. inchidere branch-uri claude/* ---"
$brProj  = Close-ClaudeBranches -RepoDir $ProjectRoot -Label 'proiect'
$brComun = @{ Closed=@(); Active=@() }
if (Test-Path -LiteralPath $comunRoot -PathType Container) {
    $brComun = Close-ClaudeBranches -RepoDir $comunRoot -Label 'COMUN'
}

# =========================== 6. sumar ===========================
$commits = @()
if ($resProj  -eq 'commit') { $commits += "proiect: sync SVN r$rev" }
if ($resComun -eq 'commit') { $commits += "COMUN: sync SVN r$revComun" }
$closedAll = @($brProj.Closed + $brComun.Closed)
$activeAll = @($brProj.Active + $brComun.Active)

Write-Host ''
Write-Host "===================== SUMAR ====================="
Write-Host "Revizie SVN: proiect=$(if($rev){$rev}else{'?'})$(if($revComun){"  COMUN=$revComun"})"
if ($commits.Count -gt 0) {
    Write-Host "Commit-uri de sync:"
    $commits | ForEach-Object { Write-Host "  $_" }
} else {
    Write-Host "Commit-uri de sync: nimic de sincronizat"
}
Write-Host "Branch-uri inchise: $(if($closedAll.Count){$closedAll -join ', '}else{'niciunul'})"
Write-Host "Branch-uri active:  $(if($activeAll.Count){$activeAll -join ', '}else{'niciunul'})"
Write-Host "================================================"
exit 0