# mosaic.ps1 — Unified agent launcher and management CLI (Windows)
#
# Usage:
#   mosaic claude [args...]       Launch Claude Code with SOUL.md injected
#   mosaic opencode [args...]     Launch OpenCode
#   mosaic codex [args...]        Launch Codex
#   mosaic init [args...]         Generate SOUL.md interactively
#   mosaic doctor [args...]       Health audit
#   mosaic sync [args...]         Sync skills
$ErrorActionPreference = "Stop"

$MosaicHome = if ($env:MOSAIC_HOME) { $env:MOSAIC_HOME } else { Join-Path $env:USERPROFILE ".config\mosaic" }
$Version = "0.1.0"

function Show-Usage {
    Write-Host @"
mosaic $Version - Unified agent launcher

Usage: mosaic <command> [args...]

Agent Launchers:
  claude [args...]       Launch Claude Code with SOUL.md injected
  opencode [args...]     Launch OpenCode
  codex [args...]        Launch Codex

Management:
  init [args...]         Generate SOUL.md (agent identity contract)
  doctor [args...]       Audit runtime state and detect drift
  sync [args...]         Sync skills from canonical source
  bootstrap <path>       Bootstrap a repo with Mosaic standards

Options:
  -h, --help             Show this help
  -v, --version          Show version
"@
}

function Assert-MosaicHome {
    if (-not (Test-Path $MosaicHome)) {
        Write-Host "[mosaic] ERROR: ~/.config/mosaic not found." -ForegroundColor Red
        Write-Host "[mosaic] Install with: irm https://git.mosaicstack.dev/mosaic/bootstrap/raw/branch/main/remote-install.ps1 | iex"
        exit 1
    }
}

function Assert-Soul {
    $soulPath = Join-Path $MosaicHome "SOUL.md"
    if (-not (Test-Path $soulPath)) {
        Write-Host "[mosaic] SOUL.md not found. Running mosaic init..."
        & (Join-Path $MosaicHome "bin\mosaic-init.ps1")
    }
}

function Assert-Runtime {
    param([string]$Cmd)
    if (-not (Get-Command $Cmd -ErrorAction SilentlyContinue)) {
        Write-Host "[mosaic] ERROR: '$Cmd' not found in PATH." -ForegroundColor Red
        Write-Host "[mosaic] Install $Cmd before launching."
        exit 1
    }
}

if ($args.Count -eq 0) {
    Show-Usage
    exit 0
}

$command = $args[0]
$remaining = if ($args.Count -gt 1) { $args[1..($args.Count - 1)] } else { @() }

switch ($command) {
    "claude" {
        Assert-MosaicHome
        Assert-Soul
        Assert-Runtime "claude"
        $soulFile = Join-Path $MosaicHome "SOUL.md"
        Write-Host "[mosaic] Launching Claude Code with SOUL.md injection..."
        & claude --append-system-prompt-file $soulFile @remaining
    }
    "opencode" {
        Assert-MosaicHome
        Assert-Soul
        Assert-Runtime "opencode"
        Write-Host "[mosaic] Launching OpenCode..."
        & opencode @remaining
    }
    "codex" {
        Assert-MosaicHome
        Assert-Soul
        Assert-Runtime "codex"
        Write-Host "[mosaic] Launching Codex..."
        & codex @remaining
    }
    "init" {
        Assert-MosaicHome
        & (Join-Path $MosaicHome "bin\mosaic-init.ps1") @remaining
    }
    "doctor" {
        Assert-MosaicHome
        & (Join-Path $MosaicHome "bin\mosaic-doctor.ps1") @remaining
    }
    "sync" {
        Assert-MosaicHome
        & (Join-Path $MosaicHome "bin\mosaic-sync-skills.ps1") @remaining
    }
    "bootstrap" {
        Assert-MosaicHome
        Write-Host "[mosaic] NOTE: mosaic-bootstrap-repo requires bash. Use Git Bash or WSL." -ForegroundColor Yellow
        & (Join-Path $MosaicHome "bin\mosaic-bootstrap-repo") @remaining
    }
    { $_ -in "-h", "--help" } { Show-Usage }
    { $_ -in "-v", "--version" } { Write-Host "mosaic $Version" }
    default {
        Write-Host "[mosaic] Unknown command: $command" -ForegroundColor Red
        Write-Host "[mosaic] Run 'mosaic --help' for usage."
        exit 1
    }
}