claude-mode/install.ps1

<#
  One-time installer for claude-mode.

  Installs to %USERPROFILE%\.claude-mode, drops a cmd.exe shim on PATH, and
  wires `claude-mode` + a `claude` wrapper into the PowerShell profile.

  Idempotent: safe to re-run to upgrade. Existing presets are not overwritten
  unless -Force is passed. Your ~/.claude/settings.json is NOT touched here -
  that only happens when you actually run `claude-mode openrouter|anthropic`.
#>

[CmdletBinding()]
param(
    [switch] $Force,          # overwrite existing presets
    [switch] $SkipKeyPrompt   # do not prompt for the OpenRouter key
)

Set-StrictMode -Version 1.0
$ErrorActionPreference = 'Stop'

# Piped in as `irm ... | iex` the installer itself is never subject to the
# execution policy - but invoking the installed claude-mode.ps1 below is, and
# on a stock Restricted machine that fails. Process scope lasts only for this
# powershell.exe and does not weaken the machine or user policy.
try { Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass -Force -ErrorAction Stop } catch { }

$repoUrl = 'https://git.nebulm.com/smoido/claude-mode'

# Running from a checkout, the source is the files next to this script. Piped
# in (irm ... | iex) there is no script file and no checkout, so fetch the
# repository archive and install from that instead.
$src = $null
if ($PSScriptRoot -and (Test-Path -LiteralPath (Join-Path $PSScriptRoot 'claude-mode.ps1'))) {
    $src = $PSScriptRoot
}
else {
    [Net.ServicePointManager]::SecurityProtocol =
        [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
    $tmp = Join-Path $env:TEMP ('claude-mode-src-' + [IO.Path]::GetRandomFileName().Replace('.', ''))
    New-Item -ItemType Directory -Path $tmp -Force | Out-Null
    $zip = Join-Path $tmp 'repo.zip'
    Write-Host "no local checkout found - fetching source from $repoUrl" -ForegroundColor Cyan
    Invoke-WebRequest -Uri "$repoUrl/archive/master.zip" -OutFile $zip -UseBasicParsing
    Expand-Archive -LiteralPath $zip -DestinationPath $tmp
    # Forgejo nests everything under a repo-named folder; find it wherever it is.
    $extracted = Get-ChildItem -LiteralPath $tmp -Directory |
        Where-Object { Test-Path -LiteralPath (Join-Path $_.FullName 'claude-mode.ps1') } |
        Select-Object -First 1
    if ($extracted) { $src = $extracted.FullName }
    elseif (Test-Path -LiteralPath (Join-Path $tmp 'claude-mode.ps1')) { $src = $tmp }
    else { throw 'archive did not contain claude-mode.ps1 - repo layout changed?' }
}

$root = Join-Path $env:USERPROFILE '.claude-mode'

Write-Host "installing claude-mode -> $root" -ForegroundColor Cyan

# --- 1. directories ---------------------------------------------------------
foreach ($d in @($root, "$root\presets", "$root\vault", "$root\backups", "$root\bin")) {
    if (-not (Test-Path -LiteralPath $d)) { New-Item -ItemType Directory -Path $d -Force | Out-Null }
}

# Lock the whole tree to the current user. The vault is DPAPI-encrypted on top
# of this, but there is no reason for the directory to be broadly readable.
try {
    $acl = Get-Acl -LiteralPath $root
    if ($acl.AreAccessRulesProtected) {
        # Already locked down by a previous run. Re-applying would need
        # SeSecurityPrivilege on some systems, so leave it alone.
        Write-Host '  ok   .claude-mode ACL already locked to current user' -ForegroundColor Green
        throw [System.OperationCanceledException]::new('already-protected')
    }
    $acl.SetAccessRuleProtection($true, $false)
    foreach ($r in @($acl.Access)) { [void]$acl.RemoveAccessRule($r) }
    $me = New-Object System.Security.Principal.NTAccount($env:USERDOMAIN, $env:USERNAME)
    $acl.AddAccessRule((New-Object System.Security.AccessControl.FileSystemAccessRule(
        $me, 'FullControl', 'ContainerInherit,ObjectInherit', 'None', 'Allow')))
    Set-Acl -LiteralPath $root -AclObject $acl
    Write-Host '  ok   locked .claude-mode ACL to current user' -ForegroundColor Green
} catch [System.OperationCanceledException] {
    # already protected - nothing to do
} catch {
    Write-Host "  warn ACL hardening failed: $($_.Exception.Message)" -ForegroundColor Yellow
}

# --- 2. scripts -------------------------------------------------------------
Copy-Item -LiteralPath (Join-Path $src 'claude-mode.ps1')            -Destination $root      -Force
# claude-mode reads VERSION from its own directory to stamp health.json.
if (Test-Path -LiteralPath (Join-Path $src 'VERSION')) {
    Copy-Item -LiteralPath (Join-Path $src 'VERSION') -Destination $root -Force
}
Copy-Item -LiteralPath (Join-Path $src 'bin\claude-key-helper.ps1')  -Destination "$root\bin" -Force
Copy-Item -LiteralPath (Join-Path $src 'bin\claude-key-helper.cmd')  -Destination "$root\bin" -Force
# The table of providers claude-mode can switch to. Always replaced, unlike
# presets: it is the tool's own definition of each provider, not user data.
if (-not (Test-Path -LiteralPath (Join-Path $src 'providers.json'))) {
    throw 'providers.json missing from the payload - claude-mode cannot run without it'
}
Copy-Item -LiteralPath (Join-Path $src 'providers.json') -Destination $root -Force
Write-Host '  ok   copied claude-mode.ps1 + key helper + providers.json' -ForegroundColor Green

# --- 3. presets -------------------------------------------------------------
foreach ($p in Get-ChildItem -LiteralPath (Join-Path $src 'presets') -Filter '*.json') {
    $dest = Join-Path "$root\presets" $p.Name
    if ((Test-Path -LiteralPath $dest) -and -not $Force) {
        Write-Host "  skip preset $($p.BaseName) (exists; -Force to overwrite)" -ForegroundColor DarkGray
    } else {
        Copy-Item -LiteralPath $p.FullName -Destination $dest -Force
        Write-Host "  ok   preset $($p.BaseName)" -ForegroundColor Green
    }
}

# --- 4. initial state (native mode; settings.json untouched) ----------------
$statePath = Join-Path $root 'state.json'
if (-not (Test-Path -LiteralPath $statePath)) {
    @{ mode = 'anthropic'; preset = 'default'; updated = (Get-Date).ToString('o') } |
        ConvertTo-Json | Set-Content -LiteralPath $statePath -Encoding UTF8
    Write-Host '  ok   state.json initialised (mode=anthropic)' -ForegroundColor Green
}

# --- 5. cmd.exe / PATH shim -------------------------------------------------
$binDir = Join-Path $env:USERPROFILE '.local\bin'
if (-not (Test-Path -LiteralPath $binDir)) { New-Item -ItemType Directory -Path $binDir -Force | Out-Null }
$shim = Join-Path $binDir 'claude-mode.cmd'
@"
@echo off
powershell.exe -NoProfile -ExecutionPolicy Bypass -File "%USERPROFILE%\.claude-mode\claude-mode.ps1" %*
"@ | Set-Content -LiteralPath $shim -Encoding ASCII
Write-Host "  ok   shim $shim" -ForegroundColor Green

$userPath = [Environment]::GetEnvironmentVariable('Path', 'User')
if ($userPath -notlike "*$binDir*") {
    [Environment]::SetEnvironmentVariable('Path', "$userPath;$binDir", 'User')
    Write-Host "  ok   added $binDir to User PATH (new terminals only)" -ForegroundColor Green
}

# --- 6. PowerShell profile --------------------------------------------------
$profilePath = $PROFILE.CurrentUserAllHosts
$profileDir  = Split-Path -Parent $profilePath
if (-not (Test-Path -LiteralPath $profileDir)) { New-Item -ItemType Directory -Path $profileDir -Force | Out-Null }

$snippet = Get-Content -LiteralPath (Join-Path $src 'profile-snippet.ps1') -Raw
$current = ''
if (Test-Path -LiteralPath $profilePath) { $current = Get-Content -LiteralPath $profilePath -Raw }

$startMark = '# >>> claude-mode >>>'
$endMark   = '# <<< claude-mode <<<'

if ($current -match [regex]::Escape($startMark)) {
    $pattern = '(?s)' + [regex]::Escape($startMark) + '.*?' + [regex]::Escape($endMark)
    $current = [regex]::Replace($current, $pattern, $snippet.TrimEnd())
    Set-Content -LiteralPath $profilePath -Value $current -Encoding UTF8
    Write-Host "  ok   updated claude-mode block in $profilePath" -ForegroundColor Green
} else {
    Add-Content -LiteralPath $profilePath -Value ("`r`n" + $snippet) -Encoding UTF8
    Write-Host "  ok   appended claude-mode block to $profilePath" -ForegroundColor Green
}

# --- 7. execution policy ----------------------------------------------------
# Without this the profile block above never loads, so `claude-mode` and the
# `claude` wrapper simply do not exist in PowerShell. Offer to fix it rather
# than printing a warning the user has to act on later.
$pol = Get-ExecutionPolicy -Scope CurrentUser
if ($pol -in @('Restricted', 'Undefined', 'AllSigned')) {
    $effective = Get-ExecutionPolicy
    if ($effective -in @('Restricted', 'AllSigned')) {
        Write-Host ''
        Write-Host "  warn execution policy is '$effective'; the profile block will not load," -ForegroundColor Yellow
        Write-Host "       so 'claude-mode' will not be a command in PowerShell." -ForegroundColor Yellow
        $ans = Read-Host '       Set CurrentUser policy to RemoteSigned now? [Y/n]'
        if ($ans -eq '' -or $ans -match '^(y|yes)$') {
            try {
                Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned -Force -ErrorAction Stop
                Write-Host '  ok   CurrentUser execution policy set to RemoteSigned' -ForegroundColor Green
            } catch {
                Write-Host "  warn could not set policy: $($_.Exception.Message)" -ForegroundColor Yellow
                Write-Host '       Run manually: Set-ExecutionPolicy -Scope CurrentUser RemoteSigned' -ForegroundColor Yellow
            }
        } else {
            Write-Host '       Skipped. Run manually: Set-ExecutionPolicy -Scope CurrentUser RemoteSigned' -ForegroundColor Yellow
        }
    }
}

# Expand-Archive can carry the mark-of-the-web onto extracted files, which
# RemoteSigned then refuses. Clear it on what was just installed.
Get-ChildItem -LiteralPath $root -Recurse -Filter '*.ps1' -ErrorAction SilentlyContinue |
    Unblock-File -ErrorAction SilentlyContinue

# --- 8. key ----------------------------------------------------------------
if (-not $SkipKeyPrompt) {
    $vault = Join-Path $root 'vault\openrouter.cred'
    if ((Test-Path -LiteralPath $vault) -and -not $Force) {
        Write-Host '  ok   OpenRouter key already stored' -ForegroundColor Green
    } else {
        Write-Host ''
        & (Join-Path $root 'claude-mode.ps1') set-key openrouter
    }
}

Write-Host ''
Write-Host 'done. Open a NEW terminal, then:' -ForegroundColor Cyan
Write-Host '  claude-mode status'
Write-Host '  claude-mode openrouter default'
Write-Host '  claude-mode doctor'
Write-Host '  claude-mode anthropic'