<?php

namespace App\Livewire\Project\Shared;

use App\Models\Application;
use App\Models\Service;
use App\Models\StandaloneClickhouse;
use App\Models\StandaloneDragonfly;
use App\Models\StandaloneKeydb;
use App\Models\StandaloneMariadb;
use App\Models\StandaloneMongodb;
use App\Models\StandaloneMysql;
use App\Models\StandalonePostgresql;
use App\Models\StandaloneRedis;
use App\Models\StandaloneSqlite;
use App\Traits\ListensToTeamChannel;
use Illuminate\Contracts\View\View;
use Livewire\Component;

class ConfigurationChecker extends Component
{
    use ListensToTeamChannel;

    public bool $isConfigurationChanged = false;

    public array $configurationDiff = [];

    public int $missingRequiredEnvironmentVariableCount = 0;

    public array $missingRequiredEnvironmentVariableNames = [];

    public Application|Service|StandaloneRedis|StandalonePostgresql|StandaloneMongodb|StandaloneMysql|StandaloneMariadb|StandaloneKeydb|StandaloneDragonfly|StandaloneClickhouse|StandaloneSqlite $resource;

    public function getListeners(): array
    {
        return [
            'configurationChanged' => 'configurationChanged',
            'envsUpdated' => 'configurationChanged',
            ...$this->teamChannelListeners([
                'ApplicationConfigurationChanged' => 'configurationChanged',
            ]),
        ];
    }

    public function mount(): void
    {
        $this->configurationChanged();
    }

    public function render(): View
    {
        return view('livewire.project.shared.configuration-checker');
    }

    /**
     * Members must never see environment variable values or Compose content, so redact
     * those changes before they are serialized to the browser.
     *
     * @param  array<int, array<string, mixed>>  $changes
     * @return array<int, array<string, mixed>>
     */
    private function redactHiddenChanges(array $changes, bool $redact): array
    {
        if (! $redact) {
            return $changes;
        }

        return collect($changes)
            ->map(function (array $change): array {
                $isHidden = data_get($change, 'section') === 'environment'
                    || str((string) data_get($change, 'key'))->afterLast('.')->value() === 'docker_compose_raw';
                if (! $isHidden) {
                    return $change;
                }

                $change['old_display_value'] = data_get($change, 'old_display_value') === '-' ? '-' : '••••••••';
                $change['new_display_value'] = data_get($change, 'new_display_value') === '-' ? '-' : '••••••••';
                $change['old_full_value'] = null;
                $change['new_full_value'] = null;
                $change['expandable'] = false;
                $change['display_summary'] = data_get($change, 'type') === 'changed' ? 'Changed' : null;

                return $change;
            })
            ->all();
    }

    public function configurationChanged(): void
    {
        $this->loadConfigurationState();
    }

    private function loadConfigurationState(): void
    {
        $this->resource->refresh();

        if ($this->resource instanceof Service) {
            $missingVariables = $this->resource->missingRequiredEnvironmentVariables();
            $this->missingRequiredEnvironmentVariableCount = $missingVariables->count();
            $this->missingRequiredEnvironmentVariableNames = $missingVariables->pluck('key')->all();
        }

        if ($this->resource instanceof Application) {
            $diff = $this->resource->pendingDeploymentConfigurationDiff();
            $this->isConfigurationChanged = $diff->isChanged();

            $array = $diff->toArray();

            // Fail closed: only owners/admins may see unlocked env values.
            $teamId = $this->resource->team()?->id;
            $redactEnvironment = is_null($teamId) || ! (bool) auth()->user()?->isAdminOfTeam($teamId);
            $array['changes'] = $this->redactHiddenChanges($array['changes'] ?? [], $redactEnvironment);
            $this->configurationDiff = $array;

            return;
        }

        $this->isConfigurationChanged = $this->resource->isConfigurationChanged();
        $this->configurationDiff = [];
    }
}