<?php

namespace humhub\modules\animal_management\models;

use humhub\components\ActiveRecord;
use Yii;
use yii\helpers\Json;

class Animal extends ActiveRecord
{
    public const STATUS_INTAKE = 'intake';
    public const STATUS_ACTIVE = 'active';
    public const STATUS_TRANSFER_PENDING = 'transfer_pending';
    public const STATUS_TRANSFERRED = 'transferred';
    public const STATUS_ADOPTED = 'adopted';

    public static function tableName()
    {
        return 'rescue_animal';
    }

    public function rules()
    {
        return [
            [['contentcontainer_id', 'animal_uid'], 'required'],
            [['contentcontainer_id', 'previous_owner_user_id', 'in_possession'], 'integer'],
            [['public_summary', 'medical_notes'], 'string'],
            [['name', 'animal_uid'], 'string', 'max' => 190],
            [['species', 'breed', 'location_name'], 'string', 'max' => 120],
            [['sex', 'status'], 'string', 'max' => 32],
            [['city'], 'string', 'max' => 120],
            [['state'], 'string', 'max' => 2],
            [['zip'], 'string', 'max' => 10],
            [['animal_uid'], 'unique'],
            [['status'], 'in', 'range' => array_keys(self::statusOptions())],
        ];
    }

    public function beforeValidate()
    {
        if (!parent::beforeValidate()) {
            return false;
        }

        if ($this->isNewRecord && empty($this->animal_uid)) {
            $this->animal_uid = $this->generateAnimalUid();
        }

        if (empty($this->status)) {
            $this->status = self::STATUS_INTAKE;
        }

        return true;
    }

    public function beforeSave($insert)
    {
        if (!parent::beforeSave($insert)) {
            return false;
        }

        $now = date('Y-m-d H:i:s');
        if ($insert && empty($this->created_at)) {
            $this->created_at = $now;
        }

        $this->updated_at = $now;
        return true;
    }

    public static function statusOptions(): array
    {
        return [
            self::STATUS_INTAKE => Yii::t('AnimalManagementModule.base', 'Intake'),
            self::STATUS_ACTIVE => Yii::t('AnimalManagementModule.base', 'Active'),
            self::STATUS_TRANSFER_PENDING => Yii::t('AnimalManagementModule.base', 'Transfer Pending'),
            self::STATUS_TRANSFERRED => Yii::t('AnimalManagementModule.base', 'Transferred'),
            self::STATUS_ADOPTED => Yii::t('AnimalManagementModule.base', 'Adopted'),
        ];
    }

    public function getDisplayName(): string
    {
        $name = trim((string)$this->name);
        return $name !== '' ? $name : (string)$this->animal_uid;
    }

    public function getTransfers()
    {
        return $this->hasMany(AnimalTransfer::class, ['animal_id' => 'id']);
    }

    public function getMedicalVisits()
    {
        return $this->hasMany(AnimalMedicalVisit::class, ['animal_id' => 'id']);
    }

    public function getProgressUpdates()
    {
        return $this->hasMany(AnimalProgressUpdate::class, ['animal_id' => 'id']);
    }

    public function getTransferEvents()
    {
        return $this->hasMany(AnimalTransferEvent::class, ['animal_id' => 'id']);
    }

    public function getFieldValues()
    {
        return $this->hasMany(AnimalFieldValue::class, ['animal_id' => 'id']);
    }

    public function getGalleryItems()
    {
        return $this->hasMany(AnimalGalleryItem::class, ['animal_id' => 'id']);
    }

    public function getCustomFieldDisplayValues(bool $includeRestricted = false): array
    {
        $values = [];

        foreach ($this->getFieldValues()->with('fieldDefinition')->all() as $fieldValue) {
            if (!$fieldValue instanceof AnimalFieldValue) {
                continue;
            }

            $definition = $fieldValue->fieldDefinition;
            if ($definition === null || (string)$definition->module_id !== 'animal_management') {
                continue;
            }

            if ((int)$definition->is_active !== 1 || (int)$definition->is_core === 1) {
                continue;
            }

            if ((string)$definition->group_key !== 'animal_profile') {
                continue;
            }

            if (in_array((string)$definition->field_key, [
                'cover_image_url',
                'profile_image_url',
                'photo_url',
                'image_url',
                'profile_image',
                'photo',
                'tile_display_fields',
                'hero_display_fields',
            ], true)) {
                continue;
            }

            $visibility = (string)$definition->visibility;
            if (!$includeRestricted && $visibility !== 'public') {
                continue;
            }

            $raw = trim((string)$fieldValue->value_text);
            if ($raw === '') {
                continue;
            }

            $display = $raw;
            $inputType = (string)$definition->input_type;

            if ($inputType === 'boolean') {
                $display = in_array(strtolower($raw), ['1', 'true', 'yes', 'on'], true)
                    ? Yii::t('AnimalManagementModule.base', 'Yes')
                    : Yii::t('AnimalManagementModule.base', 'No');
            } elseif ($inputType === 'select') {
                $display = $this->mapSelectDisplayValue((string)$definition->options, $raw);
            }

            $values[] = [
                'field_key' => (string)$definition->field_key,
                'label' => trim((string)$definition->label) !== '' ? (string)$definition->label : (string)$definition->field_key,
                'value' => $display,
                'visibility' => $visibility,
            ];
        }

        return $values;
    }

    private function mapSelectDisplayValue(string $options, string $raw): string
    {
        $options = trim($options);
        if ($options === '') {
            return $raw;
        }

        $decoded = Json::decode($options, true);
        if (!is_array($decoded)) {
            return $raw;
        }

        if (array_values($decoded) === $decoded) {
            return in_array($raw, $decoded, true) ? $raw : $raw;
        }

        return isset($decoded[$raw]) ? (string)$decoded[$raw] : $raw;
    }

    private function generateAnimalUid(): string
    {
        do {
            $candidate = 'ANI-' . date('Ymd') . '-' . strtoupper(substr(Yii::$app->security->generateRandomString(8), 0, 6));
            $exists = static::find()->where(['animal_uid' => $candidate])->exists();
        } while ($exists);

        return $candidate;
    }
}