<?php

namespace App\Http\Controllers\Qms;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Qms\Concerns\ScopesToAccount;
use App\Models\Counter;
use App\Models\ServiceQueue;
use App\Models\Ticket;
use App\Services\Qms\OrganizationResolver;
use App\Services\Qms\QueueEngine;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

class ConsoleController extends Controller
{
    use ScopesToAccount;

    public function __construct(
        protected QueueEngine $engine,
    ) {}

    public function show(Request $request, Counter $counter): View
    {
        $this->authorizeAbility($request, 'console.use');
        $this->authorizeOwner($request, $counter);
        $owner = $this->ownerRef($request);

        $counter->load(['serviceQueues', 'branch']);
        $queues = $counter->serviceQueues;

        $currentTicket = Ticket::owned($owner)
            ->where('counter_id', $counter->id)
            ->whereIn('status', ['called', 'serving', 'on_hold'])
            ->with('serviceQueue')
            ->latest('called_at')
            ->first();

        $waitingByQueue = collect($queues)->mapWithKeys(function (ServiceQueue $queue) {
            return [$queue->id => $this->engine->waitingTickets($queue, 10)];
        });

        $allQueues = ServiceQueue::owned($owner)
            ->where('organization_id', $counter->organization_id)
            ->where('branch_id', $counter->branch_id)
            ->where('is_active', true)
            ->orderBy('name')
            ->get();

        return view('qms.console.show', compact('counter', 'queues', 'currentTicket', 'waitingByQueue', 'allQueues'));
    }

    public function action(Request $request, Counter $counter): RedirectResponse
    {
        $this->authorizeAbility($request, 'console.use');
        $this->authorizeOwner($request, $counter);
        $actor = $this->ownerRef($request);

        $validated = $request->validate([
            'action' => ['required', 'string'],
            'queue_id' => ['nullable', 'integer'],
            'ticket_id' => ['nullable', 'integer'],
            'to_queue_id' => ['nullable', 'integer'],
            'reason' => ['nullable', 'string', 'max:500'],
        ]);

        match ($validated['action']) {
            'call_next' => $this->handleCallNext($counter, (int) $validated['queue_id'], $actor),
            'recall' => $this->handleTicketAction($validated['ticket_id'], 'recall', $actor),
            'start' => $this->handleTicketAction($validated['ticket_id'], 'start', $actor),
            'hold' => $this->handleTicketAction($validated['ticket_id'], 'hold', $actor),
            'skip' => $this->handleTicketAction($validated['ticket_id'], 'skip', $actor),
            'complete' => $this->handleTicketAction($validated['ticket_id'], 'complete', $actor),
            'no_show' => $this->handleTicketAction($validated['ticket_id'], 'no_show', $actor),
            'transfer' => $this->handleTransfer($validated['ticket_id'], (int) $validated['to_queue_id'], $counter, $validated['reason'] ?? null, $actor),
            'available' => $counter->update(['status' => 'available']),
            'offline' => $counter->update(['status' => 'offline']),
            default => null,
        };

        return back();
    }

    protected function handleCallNext(Counter $counter, int $queueId, string $actor): void
    {
        $queue = ServiceQueue::findOrFail($queueId);
        $this->engine->callNext($queue, $counter, $actor);
    }

    protected function handleTicketAction(?int $ticketId, string $action, string $actor): void
    {
        if (! $ticketId) {
            return;
        }
        $ticket = Ticket::findOrFail($ticketId);
        match ($action) {
            'recall' => $this->engine->recall($ticket, $actor),
            'start' => $this->engine->startServing($ticket, $actor),
            'hold' => $this->engine->hold($ticket, $actor),
            'skip' => $this->engine->skip($ticket, $actor),
            'complete' => $this->engine->completeTicket($ticket, $actor),
            'no_show' => $this->engine->markNoShow($ticket, $actor),
            default => null,
        };
    }

    protected function handleTransfer(?int $ticketId, int $toQueueId, Counter $counter, ?string $reason, string $actor): void
    {
        if (! $ticketId || ! $toQueueId) {
            return;
        }
        $ticket = Ticket::findOrFail($ticketId);
        $toQueue = ServiceQueue::findOrFail($toQueueId);
        $this->engine->transfer($ticket, $toQueue, $counter, $reason, $actor);
    }
}