<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\docs\controller\backend;

use addon\docs\model\DocsDoc;
use addon\docs\model\DocsProject;
use addon\docs\model\DocsVersion;
use addon\docs\service\DocSearchService;
use addon\docs\service\DocTreeService;
use ywxapp\controller\BackendBase;

/**
 * 文档项目管理
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class Project extends BackendBase
{
    /**
     * 项目列表
     */
    public function index()
    {
        $keyword = trim((string) $this->request->get('keyword', ''));

        $query = DocsProject::order('sort', 'asc')->order('id', 'asc');
        if ($keyword !== '') {
            $query->where(function ($q) use ($keyword) {
                $q->whereLike('title', '%' . $keyword . '%')
                    ->whereOr('name', 'like', '%' . $keyword . '%');
            });
        }

        $list = $query->select()->toArray();

        // 附加每个项目的版本数与文档数，便于列表直观查看
        foreach ($list as &$item) {
            $item['version_count'] = DocsVersion::where('project_id', $item['id'])->count();
            $item['doc_count']     = DocsDoc::where('project_id', $item['id'])->count();
        }
        unset($item);

        $this->assign('list', $list);
        $this->assign('keyword', $keyword);
        return $this->fetch('project/index');
    }

    /**
     * 新增页面
     */
    public function add()
    {
        $this->assign('addonList', $this->addonOptions());
        return $this->fetch('project/add');
    }

    /**
     * 保存新增
     */
    public function save()
    {
        $data = $this->collect();
        if (is_string($data)) {
            return $this->result->error($data);
        }

        if (DocsProject::where('name', $data['name'])->find()) {
            return $this->result->error('项目标识已存在，请更换');
        }

        $project = DocsProject::create($data);

        // 新项目自动建默认版本，避免建完项目无法直接添加文档
        DocsVersion::create([
            'project_id' => $project->id,
            'name'       => 'v1',
            'title'      => '默认版本',
            'is_default' => 1,
            'sort'       => 1,
            'status'     => 1,
        ]);

        DocTreeService::clearCache();
        return $this->result->success(null, '添加成功');
    }

    /**
     * 编辑页面
     *
     * @param int $id 项目ID
     */
    public function edit($id = null)
    {
        $project = DocsProject::find((int) $id);
        if (!$project) {
            return $this->result->error('项目不存在');
        }

        $this->assign('item', $project);
        $this->assign('addonList', $this->addonOptions());
        $this->assign('versionList', DocsVersion::where('project_id', $project->id)->order('sort', 'asc')->select());
        return $this->fetch('project/edit');
    }

    /**
     * 保存编辑
     *
     * @param int $id 项目ID
     */
    public function update($id)
    {
        $project = DocsProject::find((int) $id);
        if (!$project) {
            return $this->result->error('项目不存在');
        }

        $data = $this->collect();
        if (is_string($data)) {
            return $this->result->error($data);
        }

        if (DocsProject::where('name', $data['name'])->where('id', '<>', $project->id)->find()) {
            return $this->result->error('项目标识已存在，请更换');
        }

        $project->save($data);
        DocTreeService::clearCache();
        return $this->result->success(null, '保存成功');
    }

    /**
     * 删除项目（连同版本与文档）
     *
     * @param int $id 项目ID
     */
    public function delete($id)
    {
        $id      = (int) $id;
        $project = DocsProject::find($id);
        if (!$project) {
            return $this->result->error('项目不存在');
        }

        $docIds = DocsDoc::where('project_id', $id)->column('id');
        foreach ($docIds as $docId) {
            DocSearchService::remove((int) $docId);
        }

        DocsDoc::where('project_id', $id)->delete();
        DocsVersion::where('project_id', $id)->delete();
        $project->delete();

        DocTreeService::clearCache();
        return $this->result->success(null, '删除成功');
    }

    /**
     * 收集并校验表单数据
     *
     * @return array|string 校验失败返回错误提示字符串
     */
    protected function collect()
    {
        $name  = trim((string) $this->request->post('name', ''));
        $title = trim((string) $this->request->post('title', ''));

        if ($name === '' || !preg_match('/^[a-z][a-z0-9_\-]{1,49}$/i', $name)) {
            return '项目标识只能为字母开头的字母数字组合，长度 2-50';
        }
        if ($title === '') {
            return '请填写项目名称';
        }

        return [
            'name'            => $name,
            'title'           => $title,
            'intro'           => trim((string) $this->request->post('intro', '')),
            'logo'            => trim((string) $this->request->post('logo', '')),
            'addon'           => trim((string) $this->request->post('addon', '')),
            'default_version' => trim((string) $this->request->post('default_version', '')),
            'sort'            => (int) $this->request->post('sort', 0),
            'status'          => (int) $this->request->post('status', 1) === 1 ? 1 : 0,
        ];
    }

    /**
     * 扫描已安装插件，供项目归属下拉使用
     *
     * @return array
     */
    protected function addonOptions(): array
    {
        $dir  = root_path() . 'addon';
        $list = [];

        if (!is_dir($dir)) {
            return $list;
        }

        foreach ((array) scandir($dir) as $item) {
            if ($item === '.' || $item === '..' || !is_dir($dir . DIRECTORY_SEPARATOR . $item)) {
                continue;
            }
            $infoFile = $dir . DIRECTORY_SEPARATOR . $item . DIRECTORY_SEPARATOR . 'info.php';
            if (!is_file($infoFile)) {
                continue;
            }
            $info = @include $infoFile;
            if (is_array($info) && !empty($info['name'])) {
                $list[] = [
                    'name'  => (string) $info['name'],
                    'title' => (string) ($info['title'] ?? $info['name']),
                ];
            }
        }

        return $list;
    }
}