<?php

namespace base\common\command\admin\stack;

use app\common\console\Command;
use app\common\service\stack\StackModeService;
use RuntimeException;
use think\console\Input;
use think\console\input\Argument;
use think\console\input\Option;
use think\console\Output;

class AdminStackModeBase extends Command
{
    protected function configure()
    {
        parent::configure();

        $this->setName('admin:stack:mode')
            ->setDescription('管理 Stack 模式：list/use/current/rollback')
            ->addArgument('action', Argument::OPTIONAL, '操作：list|use|current|rollback', 'list')
            ->addArgument('value', Argument::OPTIONAL, 'mode 或 backup_id')
            ->addOption('force', 'f', Option::VALUE_NONE, '跳过确认步骤');
    }

    protected function execute(Input $input, Output $output)
    {
        $action = strtolower((string)$input->getArgument('action'));
        $value = (string)$input->getArgument('value');
        $force = (bool)$input->getOption('force');

        try {
            /** @var StackModeService $service */
            $service = app(StackModeService::class);

            switch ($action) {
                case 'list':
                    $this->handleList($service, $output);
                    break;
                case 'current':
                    $this->handleCurrent($service, $output);
                    break;
                case 'use':
                    $this->handleUse($service, $input, $output, $value, $force);
                    break;
                case 'rollback':
                    $this->handleRollback($service, $input, $output, $value, $force);
                    break;
                default:
                    throw new RuntimeException('不支持的 action：' . $action);
            }
        } catch (\Throwable $e) {
            $output->error($e->getMessage());
        }
    }

    protected function handleList(StackModeService $service, Output $output): void
    {
        $modes = $service->listModes();
        if (empty($modes)) {
            $output->warning('未发现可用模式');
            return;
        }

        $output->writeln('可用模式：');
        foreach ($modes as $item) {
            $mode = (string)$item['mode'];
            $desc = (string)$item['description'];
            $authorOnly = (bool)$item['author_only'] ? 'yes' : 'no';
            $output->writeln("- {$mode} | author_only={$authorOnly} | {$desc}");
        }
    }

    protected function handleCurrent(StackModeService $service, Output $output): void
    {
        $state = $service->getCurrentState();
        $output->writeln('当前模式：' . ((string)$state['mode'] === '' ? '未记录' : (string)$state['mode']));
        $output->writeln('切换时间：' . ((string)$state['switched_at'] === '' ? '未记录' : (string)$state['switched_at']));
        $output->writeln('备份ID：' . ((string)$state['backup_id'] === '' ? '未记录' : (string)$state['backup_id']));
    }

    protected function handleUse(
        StackModeService $service,
        Input $input,
        Output $output,
        string $mode,
        bool $force
    ): void {
        $mode = trim($mode);
        if ($mode === '') {
            throw new RuntimeException('请提供 mode，例如：admin:stack:mode use base-build');
        }

        $planData = $service->getModePlan($mode);
        $output->writeln("将切换到模式：{$mode}");
        foreach ($planData['plan'] as $item) {
            $file = (string)$item['file'];
            $sourceMode = (string)$item['source_mode'];
            $output->writeln("- {$file} <= {$sourceMode}");
        }

        if (!$force && !$output->confirm($input, '确认执行覆盖切换？', true)) {
            $output->warning('已取消');
            return;
        }

        $result = $service->applyMode($mode, get_current_user() ?: 'cli');
        $output->info('模式切换完成');
        $output->writeln('mode=' . $result['mode']);
        $output->writeln('backup_id=' . $result['backup_id']);
    }

    protected function handleRollback(
        StackModeService $service,
        Input $input,
        Output $output,
        string $backupId,
        bool $force
    ): void {
        $backupId = trim($backupId);
        if ($backupId === '') {
            throw new RuntimeException('请提供 backup_id，例如：admin:stack:mode rollback 20260424120000-abcd1234');
        }

        if (!$force && !$output->confirm($input, "确认回滚到备份 {$backupId}？", true)) {
            $output->warning('已取消');
            return;
        }

        $result = $service->rollback($backupId, get_current_user() ?: 'cli');
        $output->info('回滚完成');
        $output->writeln('backup_id=' . $result['backup_id']);
        $output->writeln('restored_files=' . count($result['restored_files']));
    }
}