analytics/app/Http/Controllers/FunnelController.php

<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Concerns\ParsesDateRange;
use App\Models\Funnel;
use App\Models\Website;
use App\Services\FunnelAnalysisService;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

class FunnelController extends Controller
{
    use ParsesDateRange;

    public function index(Website $website): View
    {
        $this->authorize('view', $website);

        return view('funnels.index', [
            'website' => $website,
            'funnels' => $website->funnels()->orderBy('name')->get(),
        ]);
    }

    public function create(Website $website): View
    {
        $this->authorize('view', $website);

        return view('funnels.create', [
            'website' => $website,
        ]);
    }

    public function store(Request $request, Website $website): RedirectResponse
    {
        $this->authorize('view', $website);

        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'steps' => 'required|array|min:2',
            'steps.*.type' => 'required|in:pageview,event',
            'steps.*.value' => 'required|string|max:255',
            'steps.*.label' => 'required|string|max:255',
        ]);

        $website->funnels()->create($validated);

        return redirect()
            ->route('funnels.index', $website)
            ->with('success', 'Funnel created successfully.');
    }

    public function show(Request $request, Website $website, Funnel $funnel): View
    {
        $this->authorize('view', $website);

        [$from, $to] = $this->parseDateRange($request);
        $service = new FunnelAnalysisService($funnel, $from, $to);

        return view('funnels.show', [
            'website' => $website,
            'funnel' => $funnel,
            'steps' => $service->analyze(),
            'from' => $from,
            'to' => $to,
        ]);
    }

    public function edit(Website $website, Funnel $funnel): View
    {
        $this->authorize('view', $website);

        return view('funnels.edit', [
            'website' => $website,
            'funnel' => $funnel,
        ]);
    }

    public function update(Request $request, Website $website, Funnel $funnel): RedirectResponse
    {
        $this->authorize('view', $website);

        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'steps' => 'required|array|min:2',
            'steps.*.type' => 'required|in:pageview,event',
            'steps.*.value' => 'required|string|max:255',
            'steps.*.label' => 'required|string|max:255',
        ]);

        $funnel->update($validated);

        return redirect()
            ->route('funnels.show', [$website, $funnel])
            ->with('success', 'Funnel updated successfully.');
    }

    public function destroy(Website $website, Funnel $funnel): RedirectResponse
    {
        $this->authorize('view', $website);

        $funnel->delete();

        return redirect()
            ->route('funnels.index', $website)
            ->with('success', 'Funnel deleted.');
    }
}