#Requires -Version 5.1
<#
.SYNOPSIS
  Инициализация Cursor в текущем проекте; на новом ПК сначала настраивает git/SSH.

.DESCRIPTION
  Один вызов init-cursor:
  - если машина не настроена: SSH, Gitea keys, clone Rules в $HOME\CursorRules
  - затем копирует rules в текущий репозиторий и настраивает remotes

  Первый запуск (приватный repo — через git clone, см. README):
    git clone --depth 1 ssh://git@git.kalinamall.ru:2222/PapaTramp/Rules.git $HOME\CursorRules
    & $HOME\CursorRules\install.ps1

.EXAMPLE
  cd C:\Users\papat\Projects\MyRepo
  init-cursor
  init-cursor -Update
#>
function Get-CursorRulesDest {
    return (Join-Path $HOME 'CursorRules')
}

function Get-CursorBootstrapRoot {
    param([string]$RulesDest)

    $scriptRoot = $PSScriptRoot
    if (Test-Path (Join-Path $scriptRoot 'scripts\Invoke-MachineBootstrap.ps1')) {
        return $scriptRoot
    }
    if (Test-Path (Join-Path $RulesDest 'local\git-ssh-hosts.conf')) {
        return $RulesDest
    }
    if (Test-Path (Join-Path $scriptRoot 'local\git-ssh-hosts.conf')) {
        return $scriptRoot
    }
    return $null
}

function Initialize-CursorRulesEnvironment {
    [CmdletBinding()]
    param(
        [switch]$Update
    )

    $rulesDest = Get-CursorRulesDest
    $bootstrapRoot = Get-CursorBootstrapRoot -RulesDest $rulesDest

    if (-not $bootstrapRoot) {
        Write-Host 'Error: CursorRules not found. Run install.ps1 from Gitea first:' -ForegroundColor Red
        Write-Host '  git clone --depth 1 ssh://git@git.kalinamall.ru:2222/PapaTramp/Rules.git $HOME\CursorRules' -ForegroundColor Yellow
        Write-Host '  & $HOME\CursorRules\install.ps1' -ForegroundColor Yellow
        return $false
    }

    $bootstrapScript = Join-Path $bootstrapRoot 'scripts\Invoke-MachineBootstrap.ps1'
    if (-not (Test-Path -LiteralPath $bootstrapScript)) {
        Write-Host "Error: bootstrap script not found: $bootstrapScript" -ForegroundColor Red
        return $false
    }

    $repoReady = Test-Path (Join-Path $rulesDest '.git')
    $skipClone = $repoReady

    & $bootstrapScript -Root $bootstrapRoot -RulesDest $rulesDest -SkipClone:$skipClone

    if ($Update -and $repoReady) {
        Write-Host '[*] Updating CursorRules from remote...' -ForegroundColor Cyan
        git -C $rulesDest pull --ff-only
        if ($LASTEXITCODE -ne 0) {
            Write-Host '[!] git pull failed in CursorRules' -ForegroundColor Yellow
        }
        else {
            Write-Host '[+] CursorRules updated' -ForegroundColor Green
        }
    }

    return $true
}

function Install-CursorInCurrentProject {
    [CmdletBinding()]
    param(
        [switch]$SkipGitRemotes
    )

    $source = Get-CursorRulesDest
    $rulesSrc = Join-Path $source '.cursor\rules'
    $scripts = Join-Path $source 'scripts'

    $cursorIgnore = Join-Path $source '.cursorignore'
    if (Test-Path $cursorIgnore) {
        Copy-Item $cursorIgnore . -Force
        Write-Host '[+] .cursorignore copied' -ForegroundColor Green
    }

    if (Test-Path $rulesSrc) {
        New-Item -ItemType Directory -Path '.\.cursor\rules' -Force | Out-Null
        Copy-Item (Join-Path $rulesSrc '*.mdc') '.\.cursor\rules\' -Force
        Write-Host '[+] .cursor/rules (*.mdc) copied' -ForegroundColor Green
    }

    $gitIgnorePath = Join-Path (Get-Location) '.gitignore'
    $ignoreLines = @('.cursor/', '.cursorignore')
    if (Test-Path (Join-Path (Get-Location) '.git')) {
        if (-not (Test-Path $gitIgnorePath)) {
            Set-Content -Path $gitIgnorePath -Value ($ignoreLines -join "`n") -Encoding UTF8
            Write-Host '[+] .gitignore created (.cursor/, .cursorignore)' -ForegroundColor Green
        }
        else {
            $existing = Get-Content $gitIgnorePath -Raw
            $added = @()
            foreach ($line in $ignoreLines) {
                if ($existing -notmatch "(?m)^$([regex]::Escape($line))\s*$") {
                    Add-Content -Path $gitIgnorePath -Value $line
                    $added += $line
                }
            }
            if ($added.Count -gt 0) {
                Write-Host "[+] .gitignore updated: $($added -join ', ')" -ForegroundColor Green
            }
        }
    }

    if ($SkipGitRemotes) {
        Write-Host '[!] Git remotes skipped (-SkipGitRemotes)' -ForegroundColor Yellow
        return
    }

    git rev-parse --is-inside-work-tree 2>$null | Out-Null
    if ($LASTEXITCODE -ne 0) {
        Write-Host '[!] Not a git repo - remotes skipped' -ForegroundColor Yellow
        return
    }

    $setRemotes = Join-Path $scripts 'Set-GitRemotes.ps1'
    if (Test-Path $setRemotes) {
        Write-Host '[*] Configuring git remotes...' -ForegroundColor Cyan
        & powershell -NoProfile -ExecutionPolicy Bypass -File $setRemotes
    }

    $ensureRepo = Join-Path $scripts 'Ensure-GiteaHomeRepo.ps1'
    if (Test-Path $ensureRepo) {
        $repoName = Split-Path -Leaf (git rev-parse --show-toplevel)
        Write-Host "[*] Ensuring home Gitea repo: $repoName" -ForegroundColor Cyan
        try {
            & powershell -NoProfile -ExecutionPolicy Bypass -File $ensureRepo -RepoName $repoName
        }
        catch {
            Write-Host "[!] home Gitea ensure failed: $($_.Exception.Message)" -ForegroundColor Yellow
        }
    }
}

function init-cursor {
    [CmdletBinding()]
    param(
        [switch]$SkipGitRemotes,
        [switch]$Update
    )

    if (-not (Initialize-CursorRulesEnvironment -Update:$Update)) {
        return
    }

    Install-CursorInCurrentProject -SkipGitRemotes:$SkipGitRemotes
    Write-Host '[+] init-cursor complete' -ForegroundColor Green
}

if ($MyInvocation.InvocationName -eq '.') {
    Write-Host '[+] init-cursor loaded - run: init-cursor' -ForegroundColor DarkCyan
}