<?php

declare(strict_types=1);

namespace app\admin\controller;

use app\admin\BaseController;
use think\exception\ValidateException;
use think\facade\Db;
use think\facade\Session;
use think\response\Json;
use think\db\exception\DbException;
use app\model\Banner;

class BannerController extends BaseController
{
    /**
     * 获取所有Banner信息
     * @return Json
     */
    public function getAllBanners()
    {
        try {
            $banners = Banner::where('delete_time', null)
                ->order('sort', 'asc')
                ->field('id, title, desc, url, image, sort, create_time, update_time')
                ->select()
                ->toArray();
            // 记录操作日志
            $this->logSuccess('Banner管理', '获取所有Banner', ['data' => $banners]);
            return json([
                'code' => 200,
                'msg' => '获取成功',
                'data' => $banners
            ]);
        } catch (DbException $e) {
            // 记录失败日志
            $this->logFail('Banner管理', '获取所有Banner', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '获取失败：' . $e->getMessage(),
                'data' => []
            ]);
        }
    }

    /**
     * 创建Banner
     * @return Json
     */
    public function createBanner()
    {
        try {
            // 获取请求参数
            $data = $this->request->param();

            // 验证参数
            $this->validate($data, [
                'title|标题' => 'require|max:255',
                'desc|简介' => 'max:65535',
                'url|跳转地址' => 'max:65535',
                'image|图片地址' => 'max:65535',
                'sort|排序号' => 'integer',
            ]);

            // 准备Banner数据
            $bannerData = [
                'title' => $data['title'],
                'desc' => $data['desc'] ?? '',
                'url' => $data['url'] ?? '',
                'image' => $data['image'] ?? '',
                'sort' => $data['sort'] ?? 0,
                'create_time' => date('Y-m-d H:i:s'),
            ];

            // 创建Banner
            $result = Banner::insertGetId($bannerData);

            if ($result === false) {
                return json([
                    'code' => 500,
                    'msg' => '创建失败'
                ]);
            }

            // 记录操作日志
            $this->logSuccess('Banner管理', '创建Banner', ['id' => $result]);
            return json([
                'code' => 200,
                'msg' => '创建成功',
                'data' => ['id' => $result]
            ]);
        } catch (ValidateException $e) {
            // 记录失败日志
            $this->logFail('Banner管理', '创建Banner', $e->getMessage());
            return json([
                'code' => 400,
                'msg' => $e->getError()
            ]);
        } catch (DbException $e) {
            // 记录失败日志
            $this->logFail('Banner管理', '创建Banner', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '创建失败：' . $e->getMessage()
            ]);
        }
    }

    /**
     * 编辑Banner
     * @param int $id Banner ID
     * @return Json
     */
    public function editBanner(int $id)
    {
        try {
            // 获取请求参数
            $data = $this->request->param();

            // 验证参数
            $this->validate($data, [
                'title|标题' => 'require|max:255',
                'desc|简介' => 'max:65535',
                'url|跳转地址' => 'max:65535',
                'image|图片地址' => 'max:65535',
                'sort|排序号' => 'integer',
            ]);

            // 检查Banner是否存在
            $banner = Banner::where('id', $id)
                ->where('delete_time', null)
                ->find();

            if (!$banner) {
                return json([
                    'code' => 404,
                    'msg' => 'Banner不存在'
                ]);
            }

            // 准备更新数据
            $updateData = [
                'title' => $data['title'],
                'desc' => $data['desc'] ?? null,
                'url' => $data['url'] ?? null,
                'image' => $data['image'] ?? null,
                'sort' => $data['sort'] ?? 0,
                'update_time' => date('Y-m-d H:i:s'),
            ];

            // 执行更新
            Banner::where('id', $id)->update($updateData);

            // 获取更新后的Banner信息
            $updatedBanner = Banner::where('id', $id)->find();

            // 记录操作日志
            $this->logSuccess('Banner管理', '更新Banner', ['id' => $id]);
            return json([
                'code' => 200,
                'msg' => '更新成功',
                'data' => $updatedBanner ? $updatedBanner->toArray() : []
            ]);
        } catch (ValidateException $e) {
            // 记录失败日志
            $this->logFail('Banner管理', '更新Banner', $e->getMessage());
            return json([
                'code' => 400,
                'msg' => $e->getError()
            ]);
        } catch (DbException $e) {
            // 记录失败日志
            $this->logFail('Banner管理', '更新Banner', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '更新失败：' . $e->getMessage()
            ]);
        }
    }

    /**
     * 删除Banner
     * @param int $id Banner ID
     * @return Json
     */
    public function deleteBanner(int $id)
    {
        try {
            // 检查Banner是否存在
            $banner = Banner::where('id', $id)
                ->where('delete_time', null)
                ->find();

            if (!$banner) {
                return json([
                    'code' => 404,
                    'msg' => 'Banner不存在'
                ]);
            }

            // 逻辑删除Banner
            $result = Banner::where('id', $id)
                ->where('delete_time', null)
                ->update([
                    'delete_time' => time(),
                    'update_time' => time()
                ]);

            if ($result === false) {
                return json([
                    'code' => 500,
                    'msg' => '删除失败'
                ]);
            }

            // 记录操作日志
            $this->logSuccess('Banner管理', '删除Banner', ['id' => $id]);
            return json([
                'code' => 200,
                'msg' => '删除成功'
            ]);
        } catch (DbException $e) {
            // 记录失败日志
            $this->logFail('Banner管理', '删除Banner', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '删除失败：' . $e->getMessage()
            ]);
        }
    }
}