<?php

namespace App\Filament\Server\Pages;

use Exception;
use App\Facades\Activity;
use App\Filament\Components\Actions\PreviewStartupAction;
use App\Filament\Components\Forms\Fields\StartupVariable;
use App\Models\Permission;
use App\Models\Server;
use App\Models\ServerVariable;
use Filament\Facades\Filament;
use Filament\Forms\Components\Hidden;
use Filament\Forms\Components\Repeater;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\Textarea;
use Filament\Forms\Components\TextInput;
use Filament\Notifications\Notification;
use Filament\Schemas\Components\Section;
use Filament\Schemas\Schema;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Facades\Validator;

class Startup extends ServerFormPage
{
    protected static string|\BackedEnum|null $navigationIcon = 'tabler-player-play';

    protected static ?int $navigationSort = 9;

    /**
     * @throws Exception
     */
    public function form(Schema $schema): Schema
    {
        return parent::form($schema)
            ->columns([
                'default' => 1,
                'sm' => 1,
                'md' => 4,
                'lg' => 6,
            ])
            ->components([
                Hidden::make('previewing')
                    ->default(false),
                Textarea::make('startup')
                    ->label(trans('server/startup.command'))
                    ->columnSpan([
                        'default' => 1,
                        'sm' => 1,
                        'md' => 2,
                        'lg' => 4,
                    ])
                    ->autosize()
                    ->hintAction(PreviewStartupAction::make())
                    ->readOnly(),
                TextInput::make('custom_image')
                    ->label(trans('server/startup.docker_image'))
                    ->readOnly()
                    ->visible(fn (Server $server) => !in_array($server->image, $server->egg->docker_images))
                    ->formatStateUsing(fn (Server $server) => $server->image)
                    ->columnSpan([
                        'default' => 1,
                        'sm' => 1,
                        'md' => 2,
                        'lg' => 2,
                    ]),
                Select::make('image')
                    ->label(trans('server/startup.docker_image'))
                    ->live()
                    ->visible(fn (Server $server) => in_array($server->image, $server->egg->docker_images))
                    ->disabled(fn (Server $server) => !auth()->user()->can(Permission::ACTION_STARTUP_DOCKER_IMAGE, $server))
                    ->afterStateUpdated(function ($state, Server $server) {
                        $original = $server->image;
                        $server->forceFill(['image' => $state])->saveOrFail();

                        if ($original !== $server->image) {
                            Activity::event('server:startup.image')
                                ->property(['old' => $original, 'new' => $state])
                                ->log();
                        }

                        Notification::make()
                            ->title(trans('server/startup.notification_docker'))
                            ->body(trans('server/startup.notification_docker_body'))
                            ->success()
                            ->send();
                    })
                    ->options(function (Server $server) {
                        $images = $server->egg->docker_images;

                        return array_flip($images);
                    })
                    ->selectablePlaceholder(false)
                    ->columnSpan([
                        'default' => 1,
                        'sm' => 1,
                        'md' => 2,
                        'lg' => 2,
                    ]),
                Section::make(trans('server/startup.variables'))
                    ->columnSpanFull()
                    ->schema([
                        Repeater::make('server_variables')
                            ->hiddenLabel()
                            ->relationship('serverVariables', fn (Builder $query) => $query->where('egg_variables.user_viewable', true)->orderByPowerJoins('variable.sort'))
                            ->grid()
                            ->disabled(fn (Server $server) => !auth()->user()->can(Permission::ACTION_STARTUP_UPDATE, $server))
                            ->reorderable(false)->addable(false)->deletable(false)
                            ->schema([
                                StartupVariable::make('variable_value')
                                    ->fromRecord()
                                    ->afterStateUpdated(function ($state, ServerVariable $serverVariable) {
                                        $this->update($state, $serverVariable);
                                    }),
                            ])
                            ->columnSpan(6),
                    ]),
            ]);
    }

    protected function authorizeAccess(): void
    {
        abort_unless(auth()->user()->can(Permission::ACTION_STARTUP_READ, Filament::getTenant()), 403);
    }

    public static function canAccess(): bool
    {
        return parent::canAccess() && auth()->user()->can(Permission::ACTION_STARTUP_READ, Filament::getTenant());
    }

    public function update(?string $state, ServerVariable $serverVariable): null
    {
        $original = $serverVariable->variable_value;

        try {

            $validator = Validator::make(
                ['variable_value' => $state],
                ['variable_value' => $serverVariable->variable->rules]
            );

            if ($validator->fails()) {
                Notification::make()
                    ->title(trans('server/startup.validation_fail', ['variable' => $serverVariable->variable->name]))
                    ->body(implode(', ', $validator->errors()->all()))
                    ->danger()
                    ->send();

                return null;
            }

            ServerVariable::query()->updateOrCreate([
                'server_id' => $this->getRecord()->id,
                'variable_id' => $serverVariable->variable->id,
            ], [
                'variable_value' => $state ?? '',
            ]);

            if ($original !== $state) {
                Activity::event('server:startup.edit')
                    ->property([
                        'variable' => $serverVariable->variable->env_variable,
                        'old' => $original,
                        'new' => $state,
                    ])
                    ->log();
            }
            Notification::make()
                ->title(trans('server/startup.update', ['variable' => $serverVariable->variable->name]))
                ->body(fn () => $original . ' -> ' . $state)
                ->success()
                ->send();
        } catch (Exception $e) {
            Notification::make()
                ->title(trans('server/startup.fail', ['variable' => $serverVariable->variable->name]))
                ->body($e->getMessage())
                ->danger()
                ->send();
        }

        return null;
    }

    public function getTitle(): string
    {
        return trans('server/startup.title');
    }

    public static function getNavigationLabel(): string
    {
        return trans('server/startup.title');
    }
}