<?php
/*
 * GitDeployment.php 2026-03-27 thomas
 *
 * Copyright (c) 2026 Thomas Schneider <thomas@inter-mundos.de>
 * Alle Rechte vorbehalten.
 */

namespace App\Service\Git;

use App\Entity\Project;
use App\Service\Deployment\DeploymentService;
use App\Service\ProjectConfigDirService;
use App\Traits\LoggerTrait;
use Symfony\Component\DependencyInjection\Attribute\AutoconfigureTag;

#[AutoconfigureTag('app.deployment_service', ['git'])]
class GitDeployment extends DeploymentService
{
    use LoggerTrait;

    const string GIT_DIR = 'repo.git';


    public function __construct(
        protected GitService $git, private readonly ProjectConfigDirService $projectConfigDirService,
    ){}


    public function supports(): string
    {
        return 'git';
    }


    public function init(Project $project): void
    {
        $this->git->setWorkingDir($project->projectDir);
    }


    /**
     * Handles the deployment process for the specified project by fetching the required
     * resources and deploying the appropriate version.
     *
     * This method first fetches the necessary project resources. Then, it delegates
     * the deployment process to the deployment method, optionally using the provided
     * version and step parameters.
     *
     * @param Project $project The project to handle.
     * @param string $version An optional specific version to deploy. Defaults to an empty string.
     * @param string $step An optional step parameter used during the handling process. Defaults to an empty string.
     *
     * @return void
     */
    public function handle(Project $project, string $version = '', string $step = ''): void
    {
        $this->fetch($project);
        $this->deploy($project, $version);
    }


    /**
     * Fetches the latest updates for the specified project's repository.
     * Depending on the state of the repository directory, either a fetch or
     * a full clone operation is performed. Supports authenticated access to
     * repositories when a URL with HTTP is provided.
     *
     * If the repository is already cloned, this method performs a fetch operation
     * to synchronize the local repository. Otherwise, it clones the repository in
     * mirror mode to the designated directory.
     *
     * During the process, the deployment step is updated to reflect the current
     * stage of the fetch operation for the given project.
     *
     * @param Project $project The project whose repository updates are to be fetched.
     *
     * @return void
     */
    public function fetch(Project $project): void
    {
        $this->projectConfigDirService->setDeploymentStep($project->projectDir, 'fetch');
        $options = [];

        if(!empty($project->deployment['repository_url']) && str_starts_with($project->deployment['repository_url'], 'http'))
        {
            $options['auth_basic'] = [
                'username' => $project->deployment['username'] ?? '',
                'password' => $project->deployment['password'] ?? '',
            ];
        }

        if($this->git->isCloned(self::GIT_DIR))
        {
            $this->projectConfigDirService->setDeploymentStep($project->projectDir, 'fetch.git.clone');

            $this->git->fetchRepo(
                dir: self::GIT_DIR,
                options: $options,
            );
        }
        else
        {
            $this->projectConfigDirService->setDeploymentStep($project->projectDir, 'fetch.git.fetch');

            $this->git->cloneRepo(
                repoUrl: $project->deployment['repository_url'],
                targetDir: self::GIT_DIR,
                options: [...$options, '--mirror'],
            );
        }
    }


    /**
     * Deploys the specified project by preparing a clean working directory,
     * cloning the git repository, and checking out the appropriate version.
     *
     * If the version is set to "default", it translates to the current state of
     * the default branch in the repository. If set to "latest" or if no version
     * is provided, the latest release of the repository is checked out.
     *
     * @param Project $project The project to be deployed.
     * @param string $version The version to be deployed, which could be explicit, "default", or "latest".
     *
     * @return void
     */
    public function deploy(Project $project, string $version): void
    {
        # remove work tree
        $this->clearDeploymentFiles($project);

        # create work tree
        $this->git->cloneRepo(self::GIT_DIR, $this->filesDir);

        // default translates to current state of default branch
        if($version === 'default')
        {
            $version = $this->git->getRepoDefaultBranch(self::GIT_DIR);
        }

        if(!$version || $version === 'latest')
        {
            # check out latest release
            $this->git->checkoutLatestRelease($this->filesDir);
        }
        else
        {
            $this->git->checkoutRepo($this->filesDir, $version);
        }

        parent::deploy($project, $version);
    }
}