<?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']));
            $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);

            $creationMode = $attributes['creation_mode'] ?? 'scratch';

            if ($creationMode === 'duplicate' && isset($attributes['source_project_id'])) {
                $sourceProject = Project::query()->findOrFail((int) $attributes['source_project_id']);

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

            if ($creationMode === 'template' && isset($attributes['source_template_id'])) {
                $template = ProjectTemplate::query()->findOrFail((int) $attributes['source_template_id']);

                $this->duplicateProjectConfiguration->apply(
                    $project,
                    $template->configuration_snapshot ?? [],
                );
            }

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

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