<?php

namespace App\Http\Controllers\Frontdesk;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Frontdesk\Concerns\ScopesToAccount;
use App\Models\WebhookEndpoint;
use App\Services\Messaging\CustomerSmsClient;
use App\Services\Messaging\MessagingCredentialsService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

class IntegrationController extends Controller
{
    use ScopesToAccount;

    public function edit(Request $request, MessagingCredentialsService $credentials): View
    {
        $this->authorizeAbility($request, 'settings.view');
        $organization = $this->organization($request);
        $plans = app(\App\Services\Frontdesk\PlanService::class);

        if (! $plans->hasFeature($organization, 'integrations')) {
            return view('frontdesk.integrations.upgrade', [
                'organization' => $organization,
                'proPriceMinor' => $plans->proPriceMinor(),
            ]);
        }

        $canManage = app(\App\Services\Frontdesk\FrontdeskPermissions::class)
            ->isAdmin($this->member($request));

        $webhook = WebhookEndpoint::owned($this->ownerRef($request))
            ->where('organization_id', $organization->id)
            ->first();

        return view('frontdesk.integrations.edit', [
            'organization' => $organization,
            'canManage' => $canManage,
            'webhook' => $webhook,
            'webhookEvents' => config('frontdesk.webhook_events', []),
            'integrations' => config('frontdesk.integrations', []),
            'icalUrl' => $this->signedIcalUrl($organization->id, $this->ownerRef($request)),
            'credential' => $credentials->forOrganization($organization),
        ]);
    }

    public function update(Request $request): RedirectResponse
    {
        $this->authorizeAbility($request, 'settings.manage');
        $organization = $this->organization($request);

        if (! app(\App\Services\Frontdesk\PlanService::class)->hasFeature($organization, 'integrations')) {
            return back()->with('error', 'Webhooks and calendar feeds require Frontdesk Pro.');
        }

        $validated = $request->validate([
            'webhook_url' => ['nullable', 'url', 'max:500'],
            'webhook_secret' => ['nullable', 'string', 'max:128'],
            'webhook_events' => ['nullable', 'array'],
            'webhook_events.*' => ['string'],
            'webhook_active' => ['boolean'],
        ]);

        if (empty($validated['webhook_url'])) {
            WebhookEndpoint::owned($this->ownerRef($request))
                ->where('organization_id', $organization->id)
                ->delete();

            return back()->with('success', 'Integration settings saved.');
        }

        WebhookEndpoint::updateOrCreate(
            [
                'owner_ref' => $this->ownerRef($request),
                'organization_id' => $organization->id,
            ],
            [
                'url' => $validated['webhook_url'],
                'secret' => $validated['webhook_secret'] ?? null,
                'events' => array_values($validated['webhook_events'] ?? config('frontdesk.webhook_events')),
                'is_active' => $request->boolean('webhook_active', true),
            ],
        );

        return back()->with('success', 'Integration settings saved.');
    }

    public function saveSms(Request $request, MessagingCredentialsService $credentials): RedirectResponse
    {
        $this->authorizeAbility($request, 'settings.manage');
        $organization = $this->organization($request);

        if (! app(\App\Services\Frontdesk\PlanService::class)->hasFeature($organization, 'integrations')) {
            return back()->with('error', 'Messaging integrations require Frontdesk Pro.');
        }

        $data = $request->validate([
            'sms_api_key' => ['required', 'string', 'max:200'],
            'sms_sender_id' => ['required', 'string', 'max:11'],
        ]);

        $result = $credentials->validateAndSaveSms(
            $organization,
            $data['sms_api_key'],
            $data['sms_sender_id'],
        );

        if (! ($result['ok'] ?? false)) {
            return back()->withInput()->with('error', $result['error'] ?? 'Could not save SMS credentials.');
        }

        return back()->with('success', 'Ladill SMS connected. Host alerts will use your key and sender ID.');
    }

    public function disconnectSms(Request $request, MessagingCredentialsService $credentials): RedirectResponse
    {
        $this->authorizeAbility($request, 'settings.manage');
        $organization = $this->organization($request);
        $credentials->disconnectSms($organization);

        return back()->with('success', 'Ladill SMS disconnected.');
    }

    public function saveBird(Request $request, MessagingCredentialsService $credentials): RedirectResponse
    {
        $this->authorizeAbility($request, 'settings.manage');
        $organization = $this->organization($request);

        if (! app(\App\Services\Frontdesk\PlanService::class)->hasFeature($organization, 'integrations')) {
            return back()->with('error', 'Messaging integrations require Frontdesk Pro.');
        }

        $data = $request->validate([
            'bird_api_key' => ['required', 'string', 'max:200'],
            'bird_from_email' => ['required', 'email', 'max:255'],
            'bird_from_name' => ['nullable', 'string', 'max:100'],
        ]);

        $result = $credentials->validateAndSaveBird(
            $organization,
            $data['bird_api_key'],
            $data['bird_from_email'],
            $data['bird_from_name'] ?? null,
        );

        if (! ($result['ok'] ?? false)) {
            return back()->withInput()->with('error', $result['error'] ?? 'Could not save Bird credentials.');
        }

        return back()->with('success', 'Ladill Bird connected. Host email alerts will use your key and from address.');
    }

    public function disconnectBird(Request $request, MessagingCredentialsService $credentials): RedirectResponse
    {
        $this->authorizeAbility($request, 'settings.manage');
        $organization = $this->organization($request);
        $credentials->disconnectBird($organization);

        return back()->with('success', 'Ladill Bird disconnected.');
    }

    public function previewSenders(Request $request, CustomerSmsClient $sms): JsonResponse
    {
        $this->authorizeAbility($request, 'settings.manage');

        $data = $request->validate([
            'sms_api_key' => ['required', 'string', 'max:200'],
        ]);

        $result = $sms->senders(trim($data['sms_api_key']));
        if (! ($result['ok'] ?? false)) {
            return response()->json(['error' => $result['error'] ?? 'Could not load senders.'], 422);
        }

        return response()->json($result['data'] ?? []);
    }

    protected function signedIcalUrl(int $organizationId, string $ownerRef): string
    {
        $token = hash_hmac('sha256', "{$organizationId}:{$ownerRef}", (string) config('app.key'));

        return route('frontdesk.integrations.ical', [
            'organization' => $organizationId,
            'owner' => $ownerRef,
            'token' => $token,
        ]);
    }
}