<?php
/**
 * 经销商等级管理控制器
 * 管理经销商等级配置（名称、折扣、佣金比例等）以及用户经销商等级分配
 */

namespace app\admin\controller\user;

use app\admin\controller\AuthController;
use think\facade\Route as Url;
use crmeb\traits\CurdControllerTrait;
use app\admin\model\system\SystemDealerLevel;
use app\admin\model\user\UserDealer;
use app\admin\model\user\User;
use crmeb\services\{UtilService, JsonService, FormBuilder as Form};

class UserDealerLevel extends AuthController
{
    use CurdControllerTrait;

    /**
     * 经销商等级列表页面
     * @return \think\response\View
     */
    public function index()
    {
        return $this->fetch();
    }

    /**
     * 创建/编辑经销商等级表单
     * @param int $id 经销商等级ID（编辑时传递）
     * @return \think\response\View
     */
    public function create($id = 0)
    {
        $dealerLevel = $id ? SystemDealerLevel::get($id) : null;
        if ($id && !$dealerLevel) {
            return JsonService::fail('经销商等级不存在');
        }

        $field = [];
        // 等级名称
        $field[] = Form::input('name', '经销商等级名称', $dealerLevel ? $dealerLevel->name : '')
            ->col(Form::col(24))
            ->required('请输入经销商等级名称');
        // 等级排序
        $field[] = Form::number('grade', '等级排序', $dealerLevel ? $dealerLevel->grade : 0)
            ->min(0)
            ->col(Form::col(8))
            ->required('请输入等级排序');
        // 进货折扣
        $field[] = Form::number('discount', '进货折扣(%)', $dealerLevel ? $dealerLevel->discount : 100)
            ->min(0)->max(100)
            ->col(Form::col(8));
        // 佣金比例
        $field[] = Form::number('commission_rate', '佣金比例(%)', $dealerLevel ? $dealerLevel->commission_rate : 0)
            ->min(0)->max(100)
            ->col(Form::col(8));
        // 是否可见特供规格
        $field[] = Form::radio('can_see_special', '可见特供规格', $dealerLevel ? $dealerLevel->can_see_special : 0)
            ->options([
                ['label' => '可见', 'value' => 1],
                ['label' => '不可见', 'value' => 0]
            ])
            ->col(Form::col(12));
        // 是否显示
        $field[] = Form::radio('is_show', '是否显示', $dealerLevel ? $dealerLevel->is_show : 1)
            ->options([
                ['label' => '显示', 'value' => 1],
                ['label' => '隐藏', 'value' => 0]
            ])
            ->col(Form::col(12));
        // 等级图标
        $field[] = Form::frameImageOne('icon', '等级图标', Url::buildUrl('admin/widget.images/index', ['fodder' => 'icon']), $dealerLevel ? $dealerLevel->icon : '')
            ->icon('image')
            ->width('100%')
            ->height('500px');
        // 等级大图
        $field[] = Form::frameImageOne('image', '等级大图', Url::buildUrl('admin/widget.images/index', ['fodder' => 'image']), $dealerLevel ? $dealerLevel->image : '')
            ->icon('image')
            ->width('100%')
            ->height('500px');
        // 等级说明
        $field[] = Form::textarea('explain', '等级说明', $dealerLevel ? $dealerLevel->explain : '')
            ->col(Form::col(24));

        $formTitle = $id ? '编辑经销商等级' : '添加经销商等级';
        $formUrl = Url::buildUrl('save', ['id' => $id]);
        $form = Form::make_post_form($formTitle, $field, $formUrl, 2);

        $this->assign(compact('form'));
        return $this->fetch('public/form-builder');
    }

    /**
     * 保存/编辑经销商等级
     * @param int $id 经销商等级ID（编辑时传递）
     * @return \crmeb\services\JsonService
     */
    public function save($id = 0)
    {
        $data = UtilService::postMore([
            ['name', ''],
            ['grade', 0],
            ['discount', 100],
            ['commission_rate', 0],
            ['can_see_special', 0],
            ['is_show', 1],
            ['icon', ''],
            ['image', ''],
            ['explain', ''],
        ]);

        // 参数验证
        if (empty($data['name'])) return JsonService::fail('请输入经销商等级名称');
        if ($data['discount'] < 0 || $data['discount'] > 100) return JsonService::fail('进货折扣请输入0-100之间的数值');
        if ($data['commission_rate'] < 0 || $data['commission_rate'] > 100) return JsonService::fail('佣金比例请输入0-100之间的数值');
        if (empty($data['grade']) && $data['grade'] !== 0) return JsonService::fail('请输入等级排序');

        // 等级排序唯一性校验
        $exists = SystemDealerLevel::where('is_del', 0)
            ->where('grade', $data['grade'])
            ->when($id, function ($query) use ($id) {
                $query->where('id', '<>', $id);
            })
            ->find();
        if ($exists) return JsonService::fail('该等级排序已存在，请更换');

        SystemDealerLevel::startTrans();
        try {
            if ($id) {
                $result = SystemDealerLevel::update($data, ['id' => $id]);
            } else {
                $data['add_time'] = time();
                $result = SystemDealerLevel::create($data);
            }

            if ($result) {
                SystemDealerLevel::commit();
                return JsonService::successful($id ? '修改成功' : '添加成功');
            } else {
                SystemDealerLevel::rollback();
                return JsonService::fail($id ? '修改失败' : '添加失败');
            }
        } catch (\Exception $e) {
            SystemDealerLevel::rollback();
            return JsonService::fail($e->getMessage());
        }
    }

    /**
     * 获取经销商等级列表（分页+搜索）
     * @return \crmeb\services\JsonService
     */
    public function get_list()
    {
        $where = UtilService::getMore([
            ['page', 1],
            ['limit', 10],
            ['name', ''],
            ['is_show', ''],
        ]);

        $query = SystemDealerLevel::where('is_del', 0);
        if ($where['name']) $query->where('name', 'like', "%{$where['name']}%");
        if ($where['is_show'] !== '') $query->where('is_show', $where['is_show']);

        $list = $query->order('grade asc')
            ->paginate([
                'page' => $where['page'],
                'list_rows' => $where['limit'],
            ]);

        return JsonService::successlayui([
            'count' => $list->total(),
            'data' => $list->items(),
        ]);
    }

    /**
     * 删除经销商等级（软删除）
     * @param int $id 经销商等级ID
     * @return \crmeb\services\JsonService
     */
    public function delete($id = 0)
    {
        if (empty($id)) return JsonService::fail('缺少参数ID');

        if (SystemDealerLevel::update(['is_del' => 1], ['id' => $id])) {
            return JsonService::successful('删除成功');
        } else {
            return JsonService::fail('删除失败');
        }
    }

    /**
     * 设置经销商等级显示状态
     * @param int $is_show 显示状态（1=显示，0=隐藏）
     * @param int $id 经销商等级ID
     * @return \crmeb\services\JsonService
     */
    public function set_show($is_show = '', $id = '')
    {
        if ($is_show === '' || empty($id)) return JsonService::fail('缺少参数');

        $result = SystemDealerLevel::where('id', $id)->update(['is_show' => (int)$is_show]);
        return $result ?
            JsonService::successful($is_show == 1 ? '显示成功' : '隐藏成功') :
            JsonService::fail($is_show == 1 ? '显示失败' : '隐藏失败');
    }

    /**
     * 快速编辑经销商等级字段
     * @param string $field 字段名
     * @param int $id 经销商等级ID
     * @param mixed $value 字段值
     * @return \crmeb\services\JsonService
     */
    public function set_value($field = '', $id = '', $value = '')
    {
        if (empty($field) || empty($id) || $value === '') return JsonService::fail('缺少参数');

        $allowFields = ['grade', 'discount', 'commission_rate'];
        if (!in_array($field, $allowFields)) return JsonService::fail('不允许修改的字段');

        if (SystemDealerLevel::where('id', $id)->update([$field => $value])) {
            return JsonService::successful('保存成功');
        } else {
            return JsonService::fail('保存失败');
        }
    }

    // ==================== 用户经销商管理 ====================

    /**
     * 用户经销商列表页面
     * @return \think\response\View
     */
    public function user_dealer_list()
    {
        $dealerLevels = SystemDealerLevel::where('is_del', 0)
            ->where('is_show', 1)
            ->order('grade asc')
            ->field('id, name')
            ->select();
        $this->assign('dealerLevels', $dealerLevels);
        return $this->fetch();
    }

    /**
     * 获取用户经销商列表（分页+关联用户信息）
     * @return \crmeb\services\JsonService
     */
    public function get_user_dealer_list()
    {
        $where = UtilService::getMore([
            ['page', 1],
            ['limit', 10],
            ['nickname', ''],
            ['level_id', ''],
        ]);

        $result = UserDealer::getUserDealerList($where);

        return JsonService::successlayui([
            'count' => $result['count'],
            'data' => $result['data'],
        ]);
    }

    /**
     * 赠送经销商等级表单
     * @param int $uid 用户ID
     * @return \think\response\View
     */
    public function give_dealer_level($uid = 0)
    {
        if (!$uid) return $this->failed('缺少参数');

        $dealerLevels = SystemDealerLevel::where('is_del', 0)
            ->where('is_show', 1)
            ->order('grade asc')
            ->field('id, name')
            ->select();

        if ($dealerLevels->isEmpty()) {
            return $this->failed('暂无经销商等级，请先添加');
        }

        $field[] = Form::select('dealer_level_id', '经销商等级')->setOptions(function () use ($dealerLevels) {
            $menus = [];
            foreach ($dealerLevels as $menu) {
                $menus[] = ['value' => $menu['id'], 'label' => $menu['name']];
            }
            return $menus;
        })->filterable(1)->required('请选择经销商等级');

        $form = Form::make_post_form('赠送经销商等级', $field, Url::buildUrl('save_give_dealer_level', ['uid' => $uid]), 2);
        $this->assign(compact('form'));
        return $this->fetch('public/form-builder');
    }

    /**
     * 保存赠送经销商等级
     * @param int $uid 用户ID
     * @return \crmeb\services\JsonService
     */
    public function save_give_dealer_level($uid = 0)
    {
        if (!$uid) return JsonService::fail('缺少参数');
        list($dealer_level_id) = UtilService::postMore([
            ['dealer_level_id', 0],
        ], $this->request, true);

        $systemLevel = SystemDealerLevel::where(['is_show' => 1, 'is_del' => 0, 'id' => $dealer_level_id])->find();
        if (!$systemLevel) return JsonService::fail('您选择的经销商等级不存在！');

        // 检查是否已有该等级
        $exist = UserDealer::where(['uid' => $uid, 'level_id' => $dealer_level_id, 'is_del' => 0])->find();
        if ($exist) return JsonService::fail('此用户已有该经销商等级，请勿重复赠送');

        UserDealer::startTrans();
        try {
            $res = UserDealer::create([
                'uid' => $uid,
                'level_id' => $dealer_level_id,
                'grade' => $systemLevel->grade,
                'status' => 1,
                'is_del' => 0,
                'add_time' => time(),
                'spread_code' => '',
                'mark' => '后台管理员于' . date('Y-m-d H:i:s') . '赠送【' . $systemLevel->name . '】经销商等级',
            ]);

            // 更新用户表中的经销商等级
            $res = $res && User::where('uid', $uid)->update(['dealer' => $systemLevel->grade]);

            if ($res) {
                UserDealer::commit();
                return JsonService::successful('赠送成功');
            } else {
                UserDealer::rollback();
                return JsonService::fail('赠送失败');
            }
        } catch (\Exception $e) {
            UserDealer::rollback();
            return JsonService::fail('赠送失败：' . $e->getMessage());
        }
    }

    /**
     * 清除用户经销商等级
     * @param int $uid 用户ID
     * @return \crmeb\services\JsonService
     */
    public function del_dealer_level($uid = 0)
    {
        if (!$uid) return JsonService::fail('缺少参数');
        if (UserDealer::cleanUpDealerLevel($uid))
            return JsonService::successful('清除成功');
        else
            return JsonService::fail('清除失败');
    }
}