<?php

namespace App\Actions\Projects;

use App\Actions\Permissions\PermissionService;
use App\Actions\ProjectTicketMetadata\InitializeProjectTicketMetadata;
use App\Enums\Permission;
use App\Models\Project;
use App\Models\ProjectTemplate;
use App\Models\User;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\DB;

class CreateProject
{
    public function __construct(
        private readonly CreateProjectBaseTemplate $createProjectBaseTemplate,
        private readonly DuplicateProjectConfiguration $duplicateProjectConfiguration,
        private readonly InitializeProjectTicketMetadata $initializeProjectTicketMetadata,
        private readonly PermissionService $permissionService,
    ) {}

    /**
     * @param  array{key: string, name: string, creation_mode?: string, source_project_id?: int|string|null, source_template_id?: int|string|null, copy_areas?: array<int, string>|null}  $attributes
     */
    public function handle(array $attributes, User $actor): Project
    {
        return DB::transaction(function () use ($attributes, $actor): Project {
            $project = Project::query()->create(Arr::only($attributes, ['key', 'name']));
            $creationMode = Arr::get($attributes, 'creation_mode', 'scratch');
            $sourceTemplateId = Arr::get($attributes, 'source_template_id');
            $baseTemplate = null;
            $sourceTemplate = null;

            if ($creationMode === 'template' && $sourceTemplateId !== null) {
                $sourceTemplate = ProjectTemplate::query()
                    ->published()
                    ->findOrFail((int) $sourceTemplateId);

                $project->forceFill([
                    'project_template_id' => $sourceTemplate->id,
                ])->save();
            } else {
                $baseTemplate = $this->createProjectBaseTemplate->handle($project);

                $project->forceFill([
                    'project_template_id' => $baseTemplate->id,
                ])->save();
            }

            $project = $project->fresh() ?? $project;

            $this->initializeProjectTicketMetadata->handle($project);
            $this->permissionService->grant($actor, Permission::ProjectAdmin, $project);

            if ($creationMode === 'duplicate' && Arr::get($attributes, 'source_project_id') !== null) {
                $sourceProject = Project::query()->findOrFail((int) Arr::get($attributes, 'source_project_id'));

                $this->duplicateProjectConfiguration->handle(
                    $sourceProject,
                    $project,
                    array_values(Arr::get($attributes, 'copy_areas', [])),
                );
            }

            if ($creationMode === 'template' && $sourceTemplate !== null) {
                $this->duplicateProjectConfiguration->apply(
                    $project->fresh() ?? $project,
                    $sourceTemplate->configuration_snapshot ?? [],
                );
            }

            if ($baseTemplate !== null) {
                $baseTemplate->forceFill([
                    'configuration_snapshot' => $this->duplicateProjectConfiguration->export(
                        $project->fresh() ?? $project,
                        DuplicateProjectConfiguration::copyableAreas(),
                    ),
                ])->save();
            }

            return $project->fresh() ?? $project;
        });
    }
}