<?php

namespace App\Services\Care\Workflow;

use App\Models\Appointment;
use App\Models\Bill;
use App\Models\InvestigationRequest;
use App\Models\Organization;
use App\Models\Prescription;
use App\Models\Visit;
use App\Services\Care\CareQueueBridge;
use App\Services\Care\CareQueueContexts;

/**
 * Releases the entity represented by the visit's current workflow stage to
 * Ladill Queue after stage entry or financial clearance.
 */
class WorkflowQueueReleaseService
{
    public function __construct(
        protected WorkflowEngine $engine,
        protected CareQueueBridge $queue,
    ) {}

    public function releaseCurrent(Organization $organization, Visit $visit): void
    {
        $stage = $this->engine->currentStage($visit);
        if ($stage === null || $stage->queue_context === null) {
            return;
        }

        $context = $stage->queue_context;

        if ($context === CareQueueContexts::CONSULTATION || CareQueueContexts::isSpecialty($context)) {
            $appointment = Appointment::query()
                ->where('visit_id', $visit->id)
                ->with(['patient', 'organization', 'practitioner', 'visit'])
                ->latest('id')
                ->first();

            if ($appointment) {
                if ($appointment->status === Appointment::STATUS_COMPLETED) {
                    $nextPosition = ((int) Appointment::owned($appointment->owner_ref)
                        ->where('branch_id', $appointment->branch_id)
                        ->whereIn('status', [Appointment::STATUS_WAITING, Appointment::STATUS_CHECKED_IN])
                        ->max('queue_position')) + 1;
                    $appointment->forceFill([
                        'status' => Appointment::STATUS_WAITING,
                        'waiting_at' => now(),
                        'started_at' => null,
                        'completed_at' => null,
                        'queue_position' => $nextPosition,
                    ])->save();
                }

                if (filled($appointment->queue_ticket_uuid)
                    && in_array($appointment->queue_ticket_status, ['completed', 'cancelled'], true)) {
                    $appointment->forceFill([
                        'queue_ticket_uuid' => null,
                        'queue_ticket_number' => null,
                        'queue_ticket_status' => null,
                        'queue_service_point_uuid' => null,
                        'queue_destination' => null,
                        'queue_staff_display_name' => null,
                        'queue_routing_status' => null,
                    ])->save();
                }

                $this->queue->issueForAppointment($organization, $appointment);
            }

            return;
        }

        if ($context === CareQueueContexts::LABORATORY || $context === CareQueueContexts::IMAGING) {
            InvestigationRequest::query()
                ->where('visit_id', $visit->id)
                ->with(['patient', 'visit'])
                ->get()
                ->each(fn (InvestigationRequest $request) => $this->queue->issueForInvestigation($organization, $request));

            return;
        }

        if ($context === CareQueueContexts::PHARMACY) {
            Prescription::query()
                ->where('visit_id', $visit->id)
                ->with(['patient', 'visit'])
                ->get()
                ->each(fn (Prescription $prescription) => $this->queue->issueForPrescription($organization, $prescription));

            return;
        }

        if ($context === CareQueueContexts::BILLING) {
            Bill::query()
                ->where('visit_id', $visit->id)
                ->whereNotIn('status', [Bill::STATUS_PAID, Bill::STATUS_VOID])
                ->get()
                ->each(fn (Bill $bill) => $this->queue->issueForBill($organization, $bill));
        }
    }
}