<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace KTXM\ProviderImap\Providers;

use Generator;
use KTXF\Mail\Collection\CollectionBaseInterface;
use KTXF\Mail\Collection\CollectionPropertiesBaseInterface;
use KTXF\Mail\Object\Address;
use KTXF\Mail\Object\AddressInterface;
use KTXF\Mail\Service\ServiceBaseInterface;
use KTXF\Mail\Service\ServiceCollectionMutableInterface;
use KTXF\Mail\Service\ServiceEntityMutableInterface;
use KTXF\Mail\Service\ServiceEntitySubmitInterface;
use KTXF\Mail\Service\ServiceConfigurableInterface;
use KTXF\Mail\Service\ServiceMutableInterface;
use KTXF\Mail\Submission\EntitySubmitResult;
use KTXF\Resource\BinaryResource;
use KTXF\Resource\Provider\ResourceServiceIdentityInterface;
use KTXF\Resource\Provider\ResourceServiceLocationInterface;
use KTXF\Resource\Delta\Delta;
use KTXF\Resource\Filter\Filter;
use KTXF\Resource\Filter\IFilter;
use KTXF\Resource\Identifier\CollectionIdentifier;
use KTXF\Resource\Identifier\EntityIdentifier;
use KTXF\Resource\Range\IRange;
use KTXF\Resource\Range\Range;
use KTXF\Resource\Range\RangeTally;
use KTXF\Resource\Range\RangeType;
use KTXF\Resource\Sort\ISort;
use KTXF\Resource\Sort\Sort;
use KTXM\ProviderImap\Providers\ServiceIdentityBasic;
use KTXM\ProviderImap\Providers\ServiceLocation;
use KTXM\ProviderImap\Mime\MessageBuilder;
use KTXM\ProviderImap\Providers\CollectionResource;
use KTXF\Mail\Collection\CollectionRoles;
use KTXF\Mail\Object\MessagePropertiesMutableInterface;
use KTXF\Resource\Identifier\EntityIdentifierInterface;
use KTXM\ProviderImap\Providers\EntityResource;

/**
 * IMAP mail service: account configuration and serialization.
 *
 * The mail API (collection / entity methods, declared by the implemented
 * interfaces) is left to the concrete classes: LiveService talks to the IMAP
 * server, CachedService serves reads from the cache. The Provider picks the
 * class by mode when loading a service.
 */
abstract class ServiceBase implements ServiceBaseInterface, ServiceMutableInterface, ServiceConfigurableInterface, ServiceCollectionMutableInterface, ServiceEntityMutableInterface, ServiceEntitySubmitInterface
{
    protected const PROVIDER_IDENTIFIER = 'imap';

    protected ?string $serviceTenantId   = null;
    protected ?string $serviceUserId     = null;
    protected ?string $serviceIdentifier = null;
    protected ?string $serviceLabel      = null;
    protected bool    $serviceEnabled    = false;
    protected array  $primaryAddress    = [];
    protected array   $secondaryAddresses = [];
    protected ?ServiceLocation      $location = null;
    protected ?ServiceIdentityBasic $identity = null;
    protected array $auxiliary = [];

    protected array $serviceAbilities = [
        self::CAPABILITY_COLLECTION_LIST => true,
        self::CAPABILITY_COLLECTION_LIST_FILTER => [
            self::CAPABILITY_COLLECTION_FILTER_LABEL => 's:128:256:256',
            self::CAPABILITY_COLLECTION_FILTER_ROLE => 's:32:1:1',
            self::CAPABILITY_COLLECTION_FILTER_SUBSCRIBED => 'b:0:1:1',
        ],
        self::CAPABILITY_COLLECTION_LIST_SORT => [
            self::CAPABILITY_COLLECTION_SORT_LABEL,
            self::CAPABILITY_COLLECTION_SORT_RANK,
        ],
        self::CAPABILITY_COLLECTION_FETCH  => true,
        self::CAPABILITY_COLLECTION_EXTANT => true,
        self::CAPABILITY_COLLECTION_CREATE => true,
        self::CAPABILITY_COLLECTION_UPDATE => true,
        self::CAPABILITY_COLLECTION_DELETE => true,
        self::CAPABILITY_COLLECTION_MOVE => true,
        self::CAPABILITY_ENTITY_LIST => true,
        self::CAPABILITY_ENTITY_LIST_FILTER => [
            self::CAPABILITY_ENTITY_FILTER_FROM => 's:100:256:256',
            self::CAPABILITY_ENTITY_FILTER_TO => 's:100:256:256',
            self::CAPABILITY_ENTITY_FILTER_SUBJECT => 's:200:256:256',
            self::CAPABILITY_ENTITY_FILTER_BODY => 's:200:256:256',
            self::CAPABILITY_ENTITY_FILTER_DATE_BEFORE => 's:32:1:1',
            self::CAPABILITY_ENTITY_FILTER_DATE_AFTER => 's:32:1:1',
            self::CAPABILITY_ENTITY_FILTER_SIZE_MIN => 'i:0:16:16',
            self::CAPABILITY_ENTITY_FILTER_SIZE_MAX => 'i:0:32:32',
        ],
        self::CAPABILITY_ENTITY_LIST_SORT => [
            self::CAPABILITY_ENTITY_SORT_FROM,
            self::CAPABILITY_ENTITY_SORT_TO,
            self::CAPABILITY_ENTITY_SORT_SUBJECT,
            self::CAPABILITY_ENTITY_SORT_DATE_RECEIVED,
            self::CAPABILITY_ENTITY_SORT_DATE_SENT,
            self::CAPABILITY_ENTITY_SORT_SIZE,
        ],
        self::CAPABILITY_ENTITY_LIST_RANGE  => [
            'tally' => ['absolute', 'relative']
        ],
        self::CAPABILITY_ENTITY_FETCH => true,
        self::CAPABILITY_ENTITY_EXTANT => true,
        self::CAPABILITY_ENTITY_CREATE => true,
        self::CAPABILITY_ENTITY_MODIFY => true,
        self::CAPABILITY_ENTITY_PATCH => true,
        self::CAPABILITY_ENTITY_DELETE => true,
        self::CAPABILITY_ENTITY_MOVE => true,
        self::CAPABILITY_ENTITY_COPY => false,
        'EntityTransmit' => true,
    ];

    public function __construct() {}

    public function toStore(): array
    {
        return array_filter([
            'tid' => $this->serviceTenantId,
            'uid' => $this->serviceUserId,
            'sid' => $this->serviceIdentifier,
            'enabled' => $this->serviceEnabled,
            'label' => $this->serviceLabel,
            'primaryAddress' => $this->primaryAddress,
            'secondaryAddresses'=> $this->secondaryAddresses,
            'location' => $this->location?->toStore(),
            'identity' => $this->identity?->toStore(),
            'auxiliary' => $this->auxiliary,
        ], fn($v) => $v !== null);
    }

    public function fromStore(array $data): static
    {
        $this->serviceTenantId = $data['tid'] ?? null;
        $this->serviceUserId = $data['uid'] ?? null;
        $this->serviceIdentifier = $data['sid'] ?? null;
        $this->serviceLabel = $data['label'] ?? '';
        $this->serviceEnabled = $data['enabled'] ?? false;

        if (isset($data['primaryAddress'])) {
            $this->primaryAddress = $data['primaryAddress'];
        }
        if (isset($data['secondaryAddresses']) && is_array($data['secondaryAddresses'])) {
            $this->secondaryAddresses = $data['secondaryAddresses'];
        }
        if (isset($data['location'])) {
            $this->location = (new ServiceLocation())->fromStore($data['location']);
        }
        if (isset($data['identity'])) {
            $this->identity = (new ServiceIdentityBasic())->fromStore($data['identity']);
        }
        if (isset($data['auxiliary']) && is_array($data['auxiliary'])) {
            $this->auxiliary = $data['auxiliary'];
        }

        return $this;
    }

    public function jsonSerialize(): array
    {
        return array_filter([
            self::PROPERTY_TYPE => self::JSON_TYPE,
            self::PROPERTY_PROVIDER => self::PROVIDER_IDENTIFIER,
            self::PROPERTY_IDENTIFIER => $this->serviceIdentifier,
            self::PROPERTY_LABEL => $this->serviceLabel,
            self::PROPERTY_ENABLED => $this->serviceEnabled,
            self::PROPERTY_CAPABILITIES => $this->serviceAbilities,
            self::PROPERTY_PRIMARY_ADDRESS  => $this->primaryAddress,
            self::PROPERTY_SECONDARY_ADDRESSES => $this->secondaryAddresses,
            self::PROPERTY_LOCATION => $this->location?->jsonSerialize(),
            self::PROPERTY_IDENTITY => $this->identity?->jsonSerialize(),
            self::PROPERTY_AUXILIARY => $this->auxiliary,
        ], fn($v) => $v !== null);
    }

    public function jsonDeserialize(array|string $data, bool $delta = false): static
    {
        if (is_string($data)) {
            $data = json_decode($data, true, 512, JSON_THROW_ON_ERROR);
        }

        if (isset($data[self::PROPERTY_ENABLED])) {
            $this->setEnabled($data[self::PROPERTY_ENABLED]);
        }
        if (isset($data[self::PROPERTY_LABEL])) {
            $this->setLabel($data[self::PROPERTY_LABEL]);
        }
        if (isset($data[self::PROPERTY_LOCATION])) {
            $this->setLocation($this->freshLocation(null, $data[self::PROPERTY_LOCATION]));
        }
        if (isset($data[self::PROPERTY_IDENTITY])) {
            $this->setIdentity($this->freshIdentity(null, $data[self::PROPERTY_IDENTITY]));
        }
        if (isset($data[self::PROPERTY_PRIMARY_ADDRESS])) {
            $value = $data[self::PROPERTY_PRIMARY_ADDRESS];
            $this->setPrimaryAddress(is_array($value) ? Address::fromArray($value) : new Address((string)$value));
        }
        if (isset($data[self::PROPERTY_SECONDARY_ADDRESSES]) && is_array($data[self::PROPERTY_SECONDARY_ADDRESSES])) {
            $this->setSecondaryAddresses(array_map(
                fn($addr) => new Address(is_array($addr) ? ($addr['address'] ?? $addr) : $addr),
                $data[self::PROPERTY_SECONDARY_ADDRESSES]
            ));
        }
        if (isset($data[self::PROPERTY_AUXILIARY]) && is_array($data[self::PROPERTY_AUXILIARY])) {
            $this->setAuxiliary($data[self::PROPERTY_AUXILIARY]);
        }

        return $this;
    }

    public function capable(string $value): bool
    {
        return isset($this->serviceAbilities[$value]);
    }

    public function capabilities(): array
    {
        return $this->serviceAbilities;
    }

    public function provider(): string
    {
        return self::PROVIDER_IDENTIFIER;
    }

    public function identifier(): string|int
    {
        return $this->serviceIdentifier;
    }

    public function tenantIdentifier(): ?string
    {
        return $this->serviceTenantId;
    }

    public function getLabel(): ?string
    {
        return $this->serviceLabel;
    }

    public function setLabel(string $label): static
    {
        $this->serviceLabel = $label;
        return $this;
    }

    public function getEnabled(): bool
    {
        return $this->serviceEnabled;
    }

    public function setEnabled(bool $enabled): static
    {
        $this->serviceEnabled = $enabled;
        return $this;
    }

    public function getPrimaryAddress(): AddressInterface
    {
        return Address::fromArray($this->primaryAddress);
    }

    public function setPrimaryAddress(AddressInterface $value): static
    {
        $this->primaryAddress = $value->toArray();
        return $this;
    }

    public function getSecondaryAddresses(): array
    {
        return array_map(
            fn($addr) => $addr instanceof AddressInterface ? $addr : Address::fromArray(is_array($addr) ? $addr : ['address' => (string) $addr])
        , $this->secondaryAddresses);
    }

    public function setSecondaryAddresses(array $addresses): static
    {
        $this->secondaryAddresses = array_map(
            fn($addr) => $addr instanceof AddressInterface ? $addr : Address::fromArray(is_array($addr) ? $addr : ['address' => (string) $addr]),
            $addresses
        );
        return $this;
    }

    public function hasAddress(string $address): bool
    {
        $address = strtolower(trim($address));

        if ($this->primaryAddress && strtolower($this->primaryAddress['address'] ?? '') === $address) {
            return true;
        }
        foreach ($this->secondaryAddresses as $secondary) {
            $secondaryAddr = $secondary instanceof AddressInterface ? $secondary->getAddress() : (string) $secondary;
            if (strtolower($secondaryAddr) === $address) {
                return true;
            }
        }

        return false;
        
    }

    public function getLocation(): ServiceLocation
    {
        return $this->location;
    }

    public function setLocation(ResourceServiceLocationInterface $location): static
    {
        $this->location = $location;
        return $this;
    }

    public function freshLocation(?string $type = null, array $data = []): ServiceLocation
    {
        $loc = new ServiceLocation();
        $loc->jsonDeserialize($data);
        return $loc;
    }

    public function getIdentity(): ServiceIdentityBasic
    {
        return $this->identity;
    }

    public function setIdentity(ResourceServiceIdentityInterface $identity): static
    {
        $this->identity = $identity;
        return $this;
    }

    public function freshIdentity(?string $type = null, array $data = []): ServiceIdentityBasic
    {
        $id = new ServiceIdentityBasic();
        $id->jsonDeserialize($data);
        return $id;
    }

    public function getDebug(): bool
    {
        return ($this->auxiliary['debug'] ?? false) === true;
    }

    public function setDebug(bool $debug): static
    {
        $this->auxiliary['debug'] = $debug;
        return $this;
    }

    public function getAuxiliary(): array
    {
        return $this->auxiliary;
    }

    public function setAuxiliary(array $auxiliary): static
    {
        $this->auxiliary = $auxiliary;
        return $this;
    }

    public function collectionListFilter(): Filter
    {
        return new Filter($this->serviceAbilities[self::CAPABILITY_COLLECTION_LIST_FILTER] ?? []);
    }

    public function collectionListSort(): Sort
    {
        return new Sort($this->serviceAbilities[self::CAPABILITY_COLLECTION_LIST_SORT] ?? []);
    }

    public function collectionFresh(): CollectionResource
    {
        return new CollectionResource($this->provider(), $this->identifier());
    }

    public function entityListFilter(): Filter
    {
        return new Filter($this->serviceAbilities[self::CAPABILITY_ENTITY_LIST_FILTER] ?? []);
    }

    public function entityListSort(): Sort
    {
        return new Sort($this->serviceAbilities[self::CAPABILITY_ENTITY_LIST_SORT] ?? []);
    }

    public function entityListRange(RangeType $type): IRange
    {
        return match ($type) {
            RangeType::TALLY => new RangeTally(),
            default          => new Range(),
        };
    }

    public function entityFresh(): EntityResource
    {
        return new EntityResource($this->provider(), $this->identifier());
    }
}