<?php

namespace App\Models\Customer;

use App\Http\Resources\CustomerCrmResource;
use App\Models\Shop\Order;
use App\Notifications\Customer\DestroyCustomer;
use App\Notifications\Customer\DestroyedCustomer;
use App\Notifications\Customer\ResetPassword as NotificationResetPassword;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use App\Notifications\Customer\VerifyEmail as NotificationVerifyEmail;
use Illuminate\Contracts\Auth\CanResetPassword;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Prunable;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Facades\Validator;
use Illuminate\Validation\Rule;
use Illuminate\Validation\ValidationException;
use Laravel\Cashier\Billable;
use LDC\LDCCRM\Enums\ApiError;
use LDC\LDCCRM\Exceptions\ApiErrorException;
use LDC\LDCCRM\Exceptions\CrmException;
use LDC\LDCCRM\Models\Customer as CrmCustomer;

/**
 * @property \LDC\LDCCRM\Models\Customer api_data
 * @package App\Models
 */
class Customer extends Authenticatable implements MustVerifyEmail, CanResetPassword
{
    use Billable;
    use Notifiable;
    use Prunable;
    use SoftDeletes;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'email',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'last_connection' => 'datetime',
        'email_verified_at' => 'datetime',
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        // * EVENT CLOSURES.
        static::creating(function (self $model) {
            static::assertEmailIsUnique($model->id, $model->email);
        });
        static::updating(function (self $model) {
            static::assertEmailIsUnique($model->id, $model->email);
            // * Sync with stripe if already known by stripe.
            if ($model->stripe_id) {
                $model->syncStripeCustomerDetails();
            }
        });
        static::deleted(function (self $model) {
            if ($model->forceDeleting) {
                if ($model->existsInCrm()) {
                    $model->api_data->delete();
                }
                $model->notify(new DestroyedCustomer());
            } else {
                $model->notify(new DestroyCustomer());
            }
        });
        static::restored(function () {
            \session()->flash(
                'warning',
                \trans('Votre compte à été réactivé.')
            );
        });
    }

    // * RELATIONSHIPS

    /**
     * HasMany orders relation
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function orders()
    {
        return $this->hasMany(Order::class);
    }


    // * METHODS

    /**
     * Supprimer les comptes inactivés depuis plus d'une semaine
     * de manière permanente.
     *
     * ! Les comptes non activés depuis une semaine ou les comptes supprimés depuis une semaine.
     *
     * @return \Illuminate\Database\Query\Builder
     */
    public function prunable()
    {
        return static::query()->where(function (Builder $q) {
            $q->where('updated_at', '<=', now()->subWeek())
            ->whereNull('email_verified_at');
        })->orWhere(function (Builder $q) {
            $q->where('deleted_at', '<=', now()->subWeek());
        });
    }

    /**
     * Asserts using validation that the email is unique
     *
     * @param mixed $id
     * @param mixed $email
     * @return void
     * @throws \Illuminate\Validation\ValidationException If user email as already used.
     */
    private static function assertEmailIsUnique($id, $email)
    {
        self::assertFieldIsUnique($id, 'email', $email);
    }

    // * --- AUTH ---

    /**
     * Send the email verification notification.
     *
     * @return void
     */
    public function sendEmailVerificationNotification()
    {
        $this->deleteIfDoesNotExistsInCrm();
        $this->notify(new NotificationVerifyEmail());
    }

    /**
     * Mark the given user's email as verified.
     *
     * @return boolean
     * @throws \LDC\LDCCRM\Exceptions\CrmException If an error occurs on server side or on getting response.
     * @throws \LDC\LDCCRM\Exceptions\ApiErrorException If any error or \LDC\LDCCRM\Enums\ApiError occurs.
     * @phpcs:ignore Squiz.Commenting.FunctionCommentThrowTag.WrongNumber
     */
    public function markEmailAsVerified()
    {
        $this->deleteIfDoesNotExistsInCrm();
        try {
            return $this->api_data->activate() && parent::markEmailAsVerified();
        } catch (ApiErrorException $e) {
            if ($e->getApiError()->equals(ApiError::customerAlreadyActive())) {
                return true && parent::markEmailAsVerified();
            }
            throw $e;
        }
    }

    /**
     * Send the password reset notification.
     *
     * @param  mixed $token
     * @return void
     */
    public function sendPasswordResetNotification($token)
    {
        $this->deleteIfDoesNotExistsInCrm();
        /** @var string $token */
        $this->notify(new NotificationResetPassword($token));
    }

    /**
     * Check if the customer exists in CRM.
     *
     * @return boolean
     */
    public function existsInCrm(): bool
    {
        return $this->hashcode and CrmCustomer::find($this->hashcode);
    }

    /**
     * Force delete and logout if is logged in case the customer
     * does not exists in CRM.
     *
     * @return void
     * @throws \Illuminate\Validation\ValidationException If the account is deleted because does not exists in CRM.
     */
    private function deleteIfDoesNotExistsInCrm(): void
    {
        if ($this->existsInCrm()) {
            return;
        }
        /** @var static|null $loggedCustomer */
        $loggedCustomer = \auth('frontend')->user();
        $isLogged       = \optional($loggedCustomer)->id === $this->id and !\is_null($this->id);
        if ($isLogged) {
            \auth('frontend')->logout();
        }
        $this->forceDelete();
        throw ValidationException::withMessages([
            'error' => trans('Le compte \'existe pas.')
        ]);
    }

    // * --- END AUTH ---

    /**
     * Asserts that the field is unique
     *
     * @param mixed  $id
     * @param string $field
     * @param mixed  $value
     * @return void
     * @throws \Illuminate\Validation\ValidationException If the field is not unique.
     */
    private static function assertFieldIsUnique($id, string $field, $value)
    {
        Validator::make([$field => $value], [
            $field => Rule::unique('customers', $field)->ignore($id),
        ], [
            $field . '.unique' => trans('La valeur :value pour le champ :attribute est déjà utilisé', [
                'attribute' => $field,
                'value' => $value
            ])
        ])->validate();
    }

    /**
     * Get the crm Data of a customer
     *
     * @return \LDC\LDCCRM\Models\Customer
     * @throws \LDC\LDCCRM\Exceptions\CrmException If cannot fetch data from crm.
     * @author Jérémy Munsch <jeremy.munsch@ldc.fr>
     */
    public function getApiDataAttribute(): CrmCustomer
    {
        /** @var \LDC\LDCCRM\CrmApiV2 */
        $crm         = app('crmAPI');
        $crmCustomer = $crm->getCustomer($this->hashcode);
        if (!$crmCustomer) {
            throw new CrmException('CRM get Customer returned null');
        }
        return $crmCustomer;
    }

    /**
     * Set the crm Data of a customer
     * @param CustomerCrmResource $resource
     *
     * @return CrmCustomer
     *
     * @throws \LDC\LDCCRM\Exceptions\CrmException If an error occurs on server side or on getting response.
     * @throws \LDC\LDCCRM\Exceptions\ApiErrorException If any error or \LDC\LDCCRM\Enums\ApiError occurs.
     * @author Jérémy Munsch <jeremy.munsch@ldc.fr>
     * @phpcs:disable Squiz.Commenting.FunctionCommentThrowTag.WrongNumber
     */
    public function updateApiData(CustomerCrmResource $resource): CrmCustomer
    {
        $data = $resource->toArray(null);

        /** @var \LDC\LDCCRM\CrmApiV2 */
        $crm         = app('crmAPI');
        $crmCustomer = $crm->getCustomer($data['hashcode']);
        if (!$crmCustomer) {
            throw new CrmException('CRM get Customer returned null');
        }

        $crmCustomer->fill($data);
        $crmCustomer->save();

        return $crmCustomer;
    }

    /**
     * This mutate Customer attributes to array
     * including only non critical properties and crm values
     * (One that can be send to front office without security breach)
     *
     * @return array
     */
    public function toArray()
    {
        if ($this->hashcode) {
            return collect(array_merge(
                parent::toArray(),
                (array)$this->apiData
            ))->intersectByKeys([
                'email' => '',
                'firstname' => '',
                'lastname' => '',
                'address' => '',
                'address2' => '',
                'postcode' => '',
                'birth_date' => '',
                'city' => '',
                'country' => '',
                'opt_in' => '',
                'phone' => ''
            ])->toArray();
        } else {
            return parent::toArray();
        }
    }
}