<?php
namespace Modules\Automation\Http\Controllers;
use App\Http\Controllers\Controller;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;
use Modules\Automation\Contracts\ActionRegistry;
use Modules\Automation\Contracts\TriggerRegistry;
use Modules\Automation\Models\Automation;
use Modules\Automation\Models\AutomationRun;
use Modules\Automation\Services\AutomationRunner;
final class AutomationController extends Controller
{
    public function index(TriggerRegistry $triggers,ActionRegistry $actions): View
    {
        return view('automation::admin.index',['automations'=>Automation::withCount(['steps','runs'])->latest()->paginate(20),'recentRuns'=>AutomationRun::with('automation')->latest()->limit(15)->get(),'triggers'=>$triggers->all(),'actions'=>$actions->all()]);
    }
    public function store(Request $request,TriggerRegistry $triggers): RedirectResponse
    {
        $data=$request->validate(['name'=>['required','string','max:255'],'description'=>['nullable','string'],'trigger_type'=>['required','string'],'status'=>['required','in:draft,active,paused'],'next_run_at'=>['nullable','date'],'trigger_config'=>['nullable','json']]);
        abort_unless($triggers->has($data['trigger_type']),422,'Unknown trigger type.');
        $data['trigger_config']=filled($data['trigger_config']??null)?json_decode($data['trigger_config'],true,512,JSON_THROW_ON_ERROR):[]; $data['stop_on_failure']=$request->boolean('stop_on_failure'); $data['created_by']=$request->user()->id;
        Automation::create($data); return back()->with('status','Automation created.');
    }
    public function addStep(Request $request,Automation $automation,ActionRegistry $actions): RedirectResponse
    {
        $data=$request->validate(['action_type'=>['required','string'],'name'=>['nullable','string','max:255'],'configuration'=>['nullable','json']]);
        abort_unless(array_key_exists($data['action_type'],$actions->all()),422,'Unknown action type.');
        $automation->steps()->create(['position'=>(int)$automation->steps()->max('position')+1,'action_type'=>$data['action_type'],'name'=>$data['name']??null,'configuration'=>filled($data['configuration']??null)?json_decode($data['configuration'],true,512,JSON_THROW_ON_ERROR):[],'is_enabled'=>true]);
        return back()->with('status','Automation step added.');
    }
    public function run(Automation $automation,AutomationRunner $runner): RedirectResponse { $run=$runner->dispatch($automation,['initiated_by'=>request()->user()->id],'manual'); return back()->with('status',"Automation queued as {$run->execution_id}."); }
    public function toggle(Automation $automation): RedirectResponse { $automation->update(['status'=>$automation->status==='active'?'paused':'active']); return back()->with('status','Automation status updated.'); }
    public function destroy(Automation $automation): RedirectResponse { $automation->delete(); return back()->with('status','Automation deleted.'); }
}