install.ps1

# Install the Knowledge Graph plugin for Claude Code (Windows)
#
# Run: powershell -ExecutionPolicy Bypass -File install.ps1

$ErrorActionPreference = "Stop"

$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$ClaudeDir = Join-Path $env:USERPROFILE ".claude"
$PluginsDir = Join-Path $ClaudeDir "plugins"
$PluginLink = Join-Path $PluginsDir "knowledge-graph"
$VenvDir = Join-Path $ScriptDir "venv"

Write-Host "=== Knowledge Graph Plugin Installer (Windows) ==="
Write-Host ""

# 1. Check Python
Write-Host "[1/4] Checking Python..."
try {
    $pyVersion = python --version 2>&1
    Write-Host "  Found $pyVersion"
} catch {
    Write-Host "  ERROR: Python not found. Install Python 3.10+ and try again."
    exit 1
}

# 2. Create venv and install deps
Write-Host "[2/4] Setting up virtual environment..."
if (-not (Test-Path $VenvDir)) {
    python -m venv "$VenvDir"
    Write-Host "  Created venv at $VenvDir"
}
$pipExe = Join-Path $VenvDir "Scripts\pip.exe"
& $pipExe install -r (Join-Path $ScriptDir "requirements.txt") --quiet
Write-Host "  Dependencies installed (fastembed, sqlite-vec)"

# 3. Create knowledge-graph directory
Write-Host "[3/4] Creating data directory..."
$DataDir = Join-Path $env:USERPROFILE ".claude\knowledge-graph"
if (-not (Test-Path $DataDir)) {
    New-Item -ItemType Directory -Path $DataDir -Force | Out-Null
}
Write-Host "  Data dir: $DataDir"

# 4. Register plugin
Write-Host "[4/4] Registering Claude Code plugin..."
if (-not (Test-Path $PluginsDir)) {
    New-Item -ItemType Directory -Path $PluginsDir -Force | Out-Null
}
if (Test-Path $PluginLink) {
    Remove-Item $PluginLink -Recurse -Force
}
cmd /c mklink /J "$PluginLink" "$ScriptDir" | Out-Null
Write-Host "  Plugin linked at $PluginLink"

# Create global hook runner (workaround: ${CLAUDE_PLUGIN_ROOT} not set in SessionStart)
$HookRunner = Join-Path $DataDir "run_hook.sh"
@"
#!/usr/bin/env bash
exec "$($ScriptDir -replace '\\', '/')/hooks/run_hook.sh" "`$@"
"@ | Set-Content -Path $HookRunner -Encoding UTF8 -NoNewline
Write-Host "  Hook runner: $HookRunner"

Write-Host ""
Write-Host "=== Installation Complete ==="
Write-Host ""
Write-Host "The MCP server starts automatically when Claude Code launches."
Write-Host "Hooks are active immediately."
Write-Host ""
Write-Host "LLM extraction uses 'claude -p' subprocess (your existing login)."
Write-Host "No API key needed."
Write-Host ""
Write-Host "Optional config (environment variables):"
Write-Host "  KNOWLEDGE_GRAPH_DB               = $DataDir\kg.db"
Write-Host "  KNOWLEDGE_GRAPH_EXTRACT_INTERVAL  = 20 (prompts between extractions)"
Write-Host "  KNOWLEDGE_GRAPH_LLM_PROVIDER      = auto (claude | anthropic | openai-compatible)"
Write-Host "  KNOWLEDGE_GRAPH_LLM_BASE_URL      = (for local models)"
Write-Host "  KNOWLEDGE_GRAPH_LLM_MODEL         = claude-haiku-4-5-20251001"
Write-Host ""