<?php

use App\Enums\ApplicationDeploymentStatus;
use App\Jobs\ApplicationDeploymentJob;
use App\Models\Application;
use App\Models\ApplicationDeploymentQueue;
use App\Models\Server;
use App\Models\StandaloneDocker;
use Spatie\Url\Url;

function queue_application_deployment(Application $application, string $deployment_uuid, ?int $pull_request_id = 0, string $commit = 'HEAD', bool $force_rebuild = false, bool $is_webhook = false, bool $is_api = false, bool $restart_only = false, ?string $git_type = null, bool $no_questions_asked = false, ?Server $server = null, ?StandaloneDocker $destination = null, bool $only_this_server = false, bool $rollback = false)
{
    $application_id = $application->id;
    $deployment_link = Url::fromString($application->link()."/deployment/{$deployment_uuid}");
    $deployment_url = $deployment_link->getPath();
    $server_id = $application->destination->server->id;
    $server_name = $application->destination->server->name;
    $destination_id = $application->destination->id;

    if ($server) {
        $server_id = $server->id;
        $server_name = $server->name;
    }
    if ($destination) {
        $destination_id = $destination->id;
    }

    // Check if there's already a deployment in progress or queued for this application and commit
    $existing_deployment = ApplicationDeploymentQueue::where('application_id', $application_id)
        ->where('commit', $commit)
        ->where('pull_request_id', $pull_request_id)
        ->whereIn('status', [ApplicationDeploymentStatus::IN_PROGRESS->value, ApplicationDeploymentStatus::QUEUED->value])
        ->first();

    if ($existing_deployment) {
        // If force_rebuild is true or rollback is true or no_questions_asked is true, we'll still create a new deployment
        if (! $force_rebuild && ! $rollback && ! $no_questions_asked) {
            // Return the existing deployment's details
            return [
                'status' => 'skipped',
                'message' => 'Deployment already queued for this commit.',
                'deployment_uuid' => $existing_deployment->deployment_uuid,
                'existing_deployment' => $existing_deployment,
            ];
        }
    }

    $deployment = ApplicationDeploymentQueue::create([
        'application_id' => $application_id,
        'application_name' => $application->name,
        'server_id' => $server_id,
        'server_name' => $server_name,
        'destination_id' => $destination_id,
        'deployment_uuid' => $deployment_uuid,
        'deployment_url' => $deployment_url,
        'pull_request_id' => $pull_request_id,
        'force_rebuild' => $force_rebuild,
        'is_webhook' => $is_webhook,
        'is_api' => $is_api,
        'restart_only' => $restart_only,
        'commit' => $commit,
        'rollback' => $rollback,
        'git_type' => $git_type,
        'only_this_server' => $only_this_server,
    ]);

    if ($no_questions_asked) {
        ApplicationDeploymentJob::dispatch(
            application_deployment_queue_id: $deployment->id,
        );
    } elseif (next_queuable($server_id, $application_id, $commit, $pull_request_id)) {
        ApplicationDeploymentJob::dispatch(
            application_deployment_queue_id: $deployment->id,
        );
    }

    return [
        'status' => 'queued',
        'message' => 'Deployment queued.',
        'deployment_uuid' => $deployment_uuid,
    ];
}
function force_start_deployment(ApplicationDeploymentQueue $deployment)
{
    $deployment->update([
        'status' => ApplicationDeploymentStatus::IN_PROGRESS->value,
    ]);

    ApplicationDeploymentJob::dispatch(
        application_deployment_queue_id: $deployment->id,
    );
}
function queue_next_deployment(Application $application)
{
    $server_id = $application->destination->server_id;
    $queued_deployments = ApplicationDeploymentQueue::where('server_id', $server_id)
        ->where('status', ApplicationDeploymentStatus::QUEUED)
        ->get()
        ->sortBy('created_at');

    foreach ($queued_deployments as $next_deployment) {
        // Check if this queued deployment can actually run
        if (next_queuable($next_deployment->server_id, $next_deployment->application_id, $next_deployment->commit, $next_deployment->pull_request_id)) {
            $next_deployment->update([
                'status' => ApplicationDeploymentStatus::IN_PROGRESS->value,
            ]);

            ApplicationDeploymentJob::dispatch(
                application_deployment_queue_id: $next_deployment->id,
            );
        }
    }
}

function next_queuable(string $server_id, string $application_id, string $commit = 'HEAD', int $pull_request_id = 0): bool
{
    // Check if there's already a deployment in progress for this application with the same pull_request_id
    // This allows normal deployments and PR deployments to run concurrently
    $in_progress = ApplicationDeploymentQueue::where('application_id', $application_id)
        ->where('pull_request_id', $pull_request_id)
        ->where('status', ApplicationDeploymentStatus::IN_PROGRESS->value)
        ->exists();

    if ($in_progress) {
        return false;
    }

    // Check server's concurrent build limit
    $server = Server::find($server_id);
    $concurrent_builds = $server->settings->concurrent_builds;
    $active_deployments = ApplicationDeploymentQueue::where('server_id', $server_id)
        ->where('status', ApplicationDeploymentStatus::IN_PROGRESS->value)
        ->count();

    if ($active_deployments >= $concurrent_builds) {
        return false;
    }

    return true;
}
function next_after_cancel(?Server $server = null)
{
    if ($server) {
        $next_found = ApplicationDeploymentQueue::where('server_id', data_get($server, 'id'))
            ->where('status', ApplicationDeploymentStatus::QUEUED)
            ->get()
            ->sortBy('created_at');

        if ($next_found->count() > 0) {
            foreach ($next_found as $next) {
                // Use next_queuable to properly check if this deployment can run
                if (next_queuable($next->server_id, $next->application_id, $next->commit, $next->pull_request_id)) {
                    $next->update([
                        'status' => ApplicationDeploymentStatus::IN_PROGRESS->value,
                    ]);

                    ApplicationDeploymentJob::dispatch(
                        application_deployment_queue_id: $next->id,
                    );
                }
            }
        }
    }
}