<?php declare(strict_types=1);

namespace App\Services\Admin;

use App\Dto\Builder\Project as ProjectBuilderDto;
use App\Dto\QuerySettingsDto;
use App\Dto\Service\Admin\Project\StoreUpdate;
use App\Enums\Morph;
use App\Models\Project;
use App\Models\ProjectLanguage;
use App\Models\User;
use App\Repositories\ProjectRepository;
use App\ServiceResults\ServiceResultArray;
use App\ServiceResults\ServiceResultError;
use App\ServiceResults\ServiceResultSuccess;
use App\ServiceResults\StoreUpdateResult;
use App\Services\ClearCacheCommandHandler;
use App\Services\Project\ProjectCommandHandler;
use App\Services\ProjectLanguage\ModelSyncCommand;
use App\Services\Role\CreateAdminRoleForProjectCommand;
use App\Services\Service;
use App\Services\Storage\StorageService;
use Illuminate\Support\Facades\DB;

final class ProjectService extends Service
{
    public function __construct(
        private readonly ProjectRepository $projectRepository,
        private readonly ProjectCommandHandler $projectCommandHandler,
        private readonly CreateAdminRoleForProjectCommand $createAdminRoleForProjectCommand,
        private readonly ModelSyncCommand $languageModelSyncCommand,
        private readonly StorageService $storageService,
        private readonly ClearCacheCommandHandler $clearCacheCommandHandler,
    ) { }

    public function index(ProjectBuilderDto $projectBuilderDto, QuerySettingsDto $querySettingsDto, User $user): ServiceResultError | ServiceResultArray
    {
        if ($user->cannot('viewAny', Project::class)) {
            return $this->errFobidden(__('Access is denied'));
        }

        $projects = $this->projectRepository->getProjects(
            $projectBuilderDto,
            $querySettingsDto->getQueryWith()
        )->pagination(
            $querySettingsDto->getLimit(),
            $querySettingsDto->getPage()
        );

        return $this->result([
            'projects' => $projects,
            'serviceTranslationEnable' => config('translation_service.enable', false),
        ]);
    }

    public function show(int $id, User $user): ServiceResultError | ServiceResultArray
    {
        $project = $this->projectRepository->getProjectById($id);

        if (is_null($project)) {
            return $this->errNotFound(__('Not Found'));
        }

        if ($user->cannot('view', $project)) {
            return $this->errFobidden(__('Access is denied'));
        }

        return $this->result([
            'project' => $project,
        ]);
    }

    public function create(User $user): ServiceResultError | ServiceResultArray
    {
        if ($user->cannot('create', Project::class)) {
            return $this->errFobidden(__('Access is denied'));
        }

        $language = new ProjectLanguage();
        $language->is_default = true;
        $language->title = $user->lang?->getTitle();
        $language->code = $user->lang?->getLocale();
        return $this->result([
            'project'   => new Project(),
            'languages' => collect([$language])->toArray(),
        ]);
    }

    public function edit(int $id, User $user): ServiceResultError | ServiceResultArray
    {
        $project = $this->projectRepository->getProjectById($id);

        if (is_null($project)) {
            return $this->errNotFound(__('Not Found'));
        }

        if ($user->cannot('view', $project)) {
            return $this->errFobidden(__('Access is denied'));
        }

        return $this->result([
            'project'   => $project,
            'languages' => $project->languages->toArray(),
        ]);
    }

    public function store(StoreUpdate $data, User $user): ServiceResultError | StoreUpdateResult
    {
        if ($user->cannot('create', Project::class)) {
            return $this->errFobidden(__('Access is denied'));
        }

        if ($this->projectRepository->isExistsCode($data->getCode())) {
            return $this->errValidate(
                __('validation.unique', ['attribute' => __('validation.attributes.code')]),
                ['code' => __('validation.unique', ['attribute' => __('validation.attributes.code')])]
            );
        }

        $storages = $this->storageService->getStoragesAndValidate($data->getStorages(), Morph::Project);
        if (!$storages->isSuccess()) {
            return $storages;
        }

        try {
            $project = DB::transaction(function () use ($data, $user, $storages) {
                $dataProject = $this->getDataProject($data);

                $project = $this->projectCommandHandler->handleStore($dataProject);
                $this->createAdminRoleForProjectCommand->execute($project, $user);
                $this->languageModelSyncCommand->execute($project, $data->getLanguages());
                $this->storageService->saveAndDelete($project, $storages);

                return $project;
            });
            $this->clearCacheCommandHandler->all();
        } catch (\Throwable $e) {
            report($e);
            return $this->errService(__('Server Error'));
        }

        return $this->resultStoreUpdateModel($project, __('The project was successfully created'));
    }

    public function update(int $id, StoreUpdate $data, User $user): ServiceResultError | StoreUpdateResult
    {
        $project = $this->projectRepository->getProjectById($id);

        if (is_null($project)) {
            return $this->errNotFound(__('Not Found'));
        }

        if ($user->cannot('update', $project)) {
            return $this->errFobidden(__('Access is denied'));
        }

        if ($this->projectRepository->isExistsCode($data->getCode(), $project->id)) {
            return $this->errValidate(
                __('validation.unique', ['attribute' => __('validation.attributes.code')]),
                ['code' => __('validation.unique', ['attribute' => __('validation.attributes.code')])]
            );
        }

        $storages = $this->storageService->getStoragesAndValidate($data->getStorages(), Morph::Project, $project->id);
        if (!$storages->isSuccess()) {
            return $storages;
        }

        try {
            $project = DB::transaction(function () use ($data, $project, $storages) {
                $dataProject = $this->getDataProject($data);

                $project = $this->projectCommandHandler->handleUpdate($project, $dataProject);
                $this->languageModelSyncCommand->execute($project, $data->getLanguages());
                $this->storageService->saveAndDelete($project, $storages);

                return $project;
            });
            $this->clearCacheCommandHandler->all();
        } catch (\Throwable $e) {
            report($e);
            return $this->errService(__('Server Error'));
        }

        return $this->resultStoreUpdateModel($project, __('The project was successfully updated'));
    }

    public function destroy(int $id, User $user): ServiceResultError|ServiceResultSuccess
    {
        $project = $this->projectRepository->getProjectById($id);

        if (is_null($project)) {
            return $this->errNotFound(__('Not Found'));
        }

        if ($user->cannot('delete', $project)) {
            return $this->errFobidden(__('Access is denied'));
        }

        try {
            DB::transaction(function () use ($project) {
                $this->projectCommandHandler->handleDestroy($project);
            });
            $this->clearCacheCommandHandler->all();
        } catch (\Throwable $e) {
            report($e);
            return $this->errService(__('Server Error'));
        }

        return $this->ok(__('The project has been deleted'));
    }

    private function getDataProject(StoreUpdate $data): array
    {
        return [
            'name'      => $data->getName(),
            'code'      => $data->getCode(),
            'http_host' => $data->getHttpHost(),
            'is_public' => $data->isPublic(),
        ];
    }
}