<?php

namespace drobnitsa\dictionaryGenerator;

use common\models\Addition;
use Yii;
use yii\gii\CodeFile;
use yii\helpers\Inflector;

class Generator extends yii\gii\Generator
{
    public $modelNs = 'common\models';
    public $modelName = '';
    public $attributes;
    public $moduleId = 'backend';
    public $controllerId = '';
    public $generateMigration = true;
    public $migrationNs = 'console\migrations';
    public $migrationName = '';

    public function getName()
    {
        return 'Dictionary CRUD Generator';
    }

    public function getDescription()
    {
        return 'Генерирует контроллер и виды для заданной модели и полей.';
    }

    public function rules()
    {
        return [
            [['modelNs', 'modelName', 'moduleId', 'controllerId'], 'required'],
            [['migrationNs', 'modelNs', 'moduleId'], 'match', 'pattern' => '/^[\w\\\\]*$/', 'message' => 'Only word characters and backslashes are allowed.'],
            ['modelName', 'validateModelClass'],
            ['generateMigration', 'boolean'],
            [['migrationName', 'controllerId'], 'string'],
            ['attributes', 'safe']
//            ['attributes', 'string', 'length' => [0, 1024]],
        ];
    }

    public function validateModelClass($attribute, $params)
    {
        if (!class_exists($this->modelClass)) {
            $this->addError($attribute, 'Модель не найдена.');
        }
    }

    public function getModelClass()
    {
        return $this->modelNs . '\\' . $this->modelName;
    }

    public function getControllerNs()
    {
        return $this->moduleId . '\controllers';
    }

    public function generate()
    {
        $controllerName = Inflector::id2camel($this->controllerId).'Controller';


        $params = [
            'modelName' => $this->modelName,
            'modelClass' => $this->modelClass,
            'controllerNs' => $this->controllerNs,
            'controllerId' => $this->controllerId,
            'controllerName' => Inflector::id2camel($this->controllerId),
            'attributes' => $this->attributes,
            'migrationName' => $this->migrationName,
            'moduleId' => $this->moduleId
        ];

        $controllerCode = $this->render('controller.php', $params);
        $viewCode = $this->render('view.php', $params);
        $searchCode = $this->render('_search.php', $params);

        $nsPath = str_replace('\\', '/', $this->controllerNs);

        $controllerPath = \Yii::getAlias("@$nsPath/{$controllerName}.php");
        $viewDir = \Yii::getAlias("@backend/views/{$this->controllerId}");

        $files = [
            new CodeFile($controllerPath, $controllerCode),
            new CodeFile("$viewDir/index.php", $viewCode),
            new CodeFile("$viewDir/_search.php", $searchCode),
        ];

        if($this->generateMigration && $this->migrationName) {
            $nsPath = str_replace('\\', '/', $this->migrationNs);
            $migrationPath = \Yii::getAlias("@$nsPath/{$this->migrationName}.php");
            $migrationCode = $this->render('migration.php', $params);
            $files[] = new CodeFile($migrationPath, $migrationCode);
        }

        return $files;
    }

    /**
     * Возвращает список атрибутов модели для выбора в форме
     */
    public function getModelAttributes($plain = true)
    {
        if (!class_exists($this->modelClass)) {
            return [];
        }
        $model = new $this->modelClass();
        if(!$plain) {
            $result = [];
            foreach ($model->attributes() as $attribute) {
                $result[$attribute] = $attribute;
            }
            return $result;
        }
        return $model->attributes();
//        return $model->attributeLabels();
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return array_merge(parent::attributeLabels(), [
            'modelNs' => 'Model namespace',
            'moduleId' => 'Module',
        ]);
    }

    /**
     * @inheritdoc
     */
    public function hints()
    {
        return array_merge(parent::hints(), [
            'modelNs' => 'This is the namespace for the source model, e.g., <code>app\models</code>',
            'moduleId' => 'This is the module name for the controller and view to be generated, e.g., <code>app\controllers</code>',
        ]);
    }

    /**
     * @inheritdoc
     */
    public function stickyAttributes()
    {
        return array_merge(
            parent::stickyAttributes(),
            [
                'modelNs',
                'moduleId',
                'migrationNs'
            ]
        );
    }

    public function actionGetAttributes()
    {
        if(class_exists($this->modelClass)) {
            return json_encode([
                'result' => true,
                'controller_id' => Inflector::pluralize(Inflector::camel2id($this->modelName)),
                'attributes' => $this->getModelAttributes()
            ]);
        }
        return json_encode(['result' => false]);
    }
}