<?php

namespace humhub\modules\animal_management\services;

use humhub\modules\animal_management\models\Animal;
use humhub\modules\animal_management\models\AnimalMedicalVisit;
use humhub\modules\animal_management\models\AnimalProgressUpdate;
use humhub\modules\animal_management\models\AnimalStreamEntry;
use humhub\modules\space\models\Space;
use Yii;

class AnimalStreamPublisherService
{
    public static function publishMedicalVisit(Animal $animal, AnimalMedicalVisit $visit): void
    {
        if (!self::streamTableExists()) {
            return;
        }

        $exists = AnimalStreamEntry::find()->where([
            'entry_type' => AnimalStreamEntry::TYPE_MEDICAL,
            'medical_visit_id' => (int)$visit->id,
        ])->exists();

        if ($exists) {
            return;
        }

        self::publishEntry($animal, AnimalStreamEntry::TYPE_MEDICAL, (int)$visit->id, null);
    }

    public static function publishProgressUpdate(Animal $animal, AnimalProgressUpdate $update): void
    {
        if (!self::streamTableExists()) {
            return;
        }

        $exists = AnimalStreamEntry::find()->where([
            'entry_type' => AnimalStreamEntry::TYPE_PROGRESS,
            'progress_update_id' => (int)$update->id,
        ])->exists();

        if ($exists) {
            return;
        }

        self::publishEntry($animal, AnimalStreamEntry::TYPE_PROGRESS, null, (int)$update->id);
    }

    private static function publishEntry(Animal $animal, string $entryType, ?int $medicalVisitId, ?int $progressUpdateId): void
    {
        try {
            $space = Space::findOne(['contentcontainer_id' => (int)$animal->contentcontainer_id]);
            if (!$space instanceof Space) {
                return;
            }

            $entry = new AnimalStreamEntry();
            $entry->animal_id = (int)$animal->id;
            $entry->entry_type = $entryType;
            $entry->medical_visit_id = $medicalVisitId;
            $entry->progress_update_id = $progressUpdateId;
            $entry->content->container = $space;

            if (!$entry->save()) {
                Yii::warning([
                    'message' => 'Could not save animal stream entry.',
                    'animal_id' => (int)$animal->id,
                    'entry_type' => $entryType,
                    'errors' => $entry->getErrors(),
                ], 'animal_management.stream_publish');
            }
        } catch (\Throwable $e) {
            Yii::warning([
                'message' => 'Unexpected error while publishing animal stream entry.',
                'animal_id' => (int)$animal->id,
                'entry_type' => $entryType,
                'exception' => $e->getMessage(),
            ], 'animal_management.stream_publish');
        }
    }

    private static function streamTableExists(): bool
    {
        return Yii::$app->db->schema->getTableSchema('rescue_animal_stream_entry', true) !== null;
    }
}