<?php

namespace app\admin\controller\game;

use Throwable;
use app\common\controller\Backend;
use support\think\Db;
use support\Response;
use Webman\Http\Request as WebmanRequest;

/**
 * 用户管理
 */
class User extends Backend
{
    /**
     * GameUser模型对象
     * @var object|null
     * @phpstan-var \app\common\model\GameUser|null
     */
    protected ?object $model = null;

    protected array|string $preExcludeFields = ['id', 'uuid', 'create_time', 'update_time'];

    protected array $withJoinTable = ['channel', 'admin'];

    protected string|array $quickSearchField = ['id', 'username', 'phone', 'email', 'register_invite_code'];

    protected function initController(WebmanRequest $request): ?Response
    {
        $this->model = new \app\common\model\GameUser();
        return null;
    }

    /**
     * 添加（重写：password 使用 Admin 同款加密；uuid 由 username+channel_id 生成）
     * @throws Throwable
     */
    protected function _add(): Response
    {
        if ($this->request && $this->request->method() === 'POST') {
            $data = $this->request->post();
            if (!$data) {
                return $this->error(__('Parameter %s can not be empty', ['']));
            }

            $data = $this->applyInputFilter($data);
            $data = $this->excludeFields($data);

            $password = $data['password'] ?? null;
            if (!is_string($password) || trim($password) === '') {
                return $this->error(__('Parameter %s can not be empty', ['password']));
            }
            $data['password'] = hash_password($password);

            $username = $data['username'] ?? '';
            $channelId = $data['channel_id'] ?? null;
            if (!is_string($username) || trim($username) === '' || $channelId === null || $channelId === '') {
                return $this->error(__('Parameter %s can not be empty', ['username/channel_id']));
            }
            $data['uuid'] = md5(trim($username) . '|' . $channelId);

            if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                $data[$this->dataLimitField] = $this->auth->id;
            }

            $result = false;
            $this->model->startTrans();
            try {
                if ($this->modelValidate) {
                    $validate = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                    if (class_exists($validate)) {
                        $validate = new $validate();
                        if ($this->modelSceneValidate) {
                            $validate->scene('add');
                        }
                        $validate->check($data);
                    }
                }
                $result = $this->model->save($data);
                $this->model->commit();
            } catch (Throwable $e) {
                $this->model->rollback();
                return $this->error($e->getMessage());
            }
            if ($result !== false) {
                return $this->success(__('Added successfully'));
            }
            return $this->error(__('No rows were added'));
        }

        return $this->error(__('Parameter error'));
    }

    /**
     * 编辑（重写：password 使用 Admin 同款加密；uuid 由 username+channel_id 生成）
     * @throws Throwable
     */
    protected function _edit(): Response
    {
        $pk = $this->model->getPk();
        $id = $this->request ? ($this->request->post($pk) ?? $this->request->get($pk)) : null;
        $row = $this->model->find($id);
        if (!$row) {
            return $this->error(__('Record not found'));
        }

        $dataLimitAdminIds = $this->getDataLimitAdminIds();
        if ($dataLimitAdminIds && !in_array($row[$this->dataLimitField], $dataLimitAdminIds)) {
            return $this->error(__('You have no permission'));
        }

        if ($this->request && $this->request->method() === 'POST') {
            $data = $this->request->post();
            if (!$data) {
                return $this->error(__('Parameter %s can not be empty', ['']));
            }

            $data = $this->applyInputFilter($data);
            $data = $this->excludeFields($data);

            if (array_key_exists('password', $data)) {
                $password = $data['password'];
                if (!is_string($password) || trim($password) === '') {
                    unset($data['password']);
                } else {
                    $data['password'] = hash_password($password);
                }
            }

            $nextUsername = array_key_exists('username', $data) ? $data['username'] : $row['username'];
            $nextChannelId = null;
            if (array_key_exists('channel_id', $data)) {
                $nextChannelId = $data['channel_id'];
            } else {
                $nextChannelId = $row['channel_id'] ?? null;
            }

            if (is_string($nextUsername) && trim($nextUsername) !== '' && $nextChannelId !== null && $nextChannelId !== '') {
                $data['uuid'] = md5(trim($nextUsername) . '|' . $nextChannelId);
            }

            $result = false;
            $this->model->startTrans();
            try {
                if ($this->modelValidate) {
                    $validate = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                    if (class_exists($validate)) {
                        $validate = new $validate();
                        if ($this->modelSceneValidate) {
                            $validate->scene('edit');
                        }
                        $data[$pk] = $row[$pk];
                        $validate->check($data);
                    }
                }
                $result = $row->save($data);
                $this->model->commit();
            } catch (Throwable $e) {
                $this->model->rollback();
                return $this->error($e->getMessage());
            }
            if ($result !== false) {
                return $this->success(__('Update successful'));
            }
            return $this->error(__('No rows updated'));
        }

        // GET: 返回编辑数据时，剔除敏感字段
        unset($row['password'], $row['salt'], $row['token'], $row['refresh_token']);
        return $this->success('', [
            'row' => $row
        ]);
    }

    /**
     * 查看
     * @throws Throwable
     */
    protected function _index(): Response
    {
        // 如果是 select 则转发到 select 方法，若未重写该方法，其实还是继续执行 index
        if ($this->request && $this->request->get('select')) {
            return $this->select($this->request);
        }

        /**
         * 1. withJoin 不可使用 alias 方法设置表别名，别名将自动使用关联模型名称（小写下划线命名规则）
         * 2. 以下的别名设置了主表别名，同时便于拼接查询参数等
         * 3. paginate 数据集可使用链式操作 each(function($item, $key) {}) 遍历处理
         */
        list($where, $alias, $limit, $order) = $this->queryBuilder();
        $res = $this->model
            ->withJoin($this->withJoinTable, $this->withJoinType)
            ->with($this->withJoinTable)
            ->visible(['channel' => ['name'], 'admin' => ['username']])
            ->alias($alias)
            ->where($where)
            ->order($order)
            ->paginate($limit);

        return $this->success('', [
            'list'   => $res->items(),
            'total'  => $res->total(),
            'remark' => get_route_remark(),
        ]);
    }

    /**
     * 角色组 → 管理员树（仅当前账号可管理的角色组及其下管理员；用于游戏用户归属）
     * 同一管理员若属于多个组，只挂在 id 最小的所属组下，避免树中重复 value
     */
    public function adminScopeTree(WebmanRequest $request): Response
    {
        $response = $this->initializeBackend($request);
        if ($response !== null) {
            return $response;
        }

        $groupIds = $this->getManageableAdminGroupIds();
        if ($groupIds === []) {
            return $this->success('', ['list' => []]);
        }

        $groups = Db::name('admin_group')
            ->where('id', 'in', $groupIds)
            ->where('status', 1)
            ->field(['id', 'pid', 'name'])
            ->order('id', 'asc')
            ->select()
            ->toArray();

        $accessRows = Db::name('admin_group_access')->alias('aga')
            ->join('admin a', 'aga.uid = a.id')
            ->where('aga.group_id', 'in', $groupIds)
            ->field(['a.id', 'a.username', 'a.channel_id', 'a.invite_code', 'aga.group_id'])
            ->select()
            ->toArray();

        $adminPrimary = [];
        foreach ($accessRows as $row) {
            $uid = intval((string)$row['id']);
            $gid = intval((string)$row['group_id']);
            if (!isset($adminPrimary[$uid]) || $gid < $adminPrimary[$uid]['gid']) {
                $adminPrimary[$uid] = [
                    'gid'  => $gid,
                    'user' => $row,
                ];
            }
        }

        $adminsByGroup = [];
        foreach ($adminPrimary as $item) {
            $row = $item['user'];
            $gid = $item['gid'];
            $invite = $row['invite_code'] ?? '';
            $invite = is_string($invite) ? $invite : '';
            $channelId = $row['channel_id'] ?? null;
            $adminsByGroup[$gid][] = [
                'value'       => (string)$row['id'],
                'label'       => (string)$row['username'],
                'is_leaf'     => true,
                'channel_id'  => $channelId === null || $channelId === '' ? null : intval((string)$channelId),
                'invite_code' => $invite,
            ];
        }

        $groupMap = [];
        foreach ($groups as $g) {
            $groupMap[intval((string)$g['id'])] = $g;
        }

        $childGroupIdsByPid = [];
        foreach ($groups as $g) {
            $id = intval((string)$g['id']);
            $pid = intval((string)($g['pid'] ?? 0));
            $childGroupIdsByPid[$pid][] = $id;
        }

        $buildNode = null;
        $buildNode = function (int $groupId) use (&$buildNode, $groupMap, $childGroupIdsByPid, $adminsByGroup): array {
            if (!isset($groupMap[$groupId])) {
                return [];
            }
            $g = $groupMap[$groupId];
            $children = [];
            foreach ($childGroupIdsByPid[$groupId] ?? [] as $childId) {
                $children[] = $buildNode($childId);
            }
            foreach ($adminsByGroup[$groupId] ?? [] as $leaf) {
                $children[] = $leaf;
            }

            return [
                'value'    => 'group_' . $groupId,
                'label'    => (string)$g['name'],
                'disabled' => true,
                'children' => $children,
            ];
        };

        $groupIdSet = array_fill_keys(array_keys($groupMap), true);
        $roots = [];
        foreach ($groups as $g) {
            $id = intval((string)$g['id']);
            $pid = intval((string)($g['pid'] ?? 0));
            if ($pid === 0 || !isset($groupIdSet[$pid])) {
                $roots[] = $id;
            }
        }
        $roots = array_values(array_unique($roots));
        sort($roots);

        $tree = [];
        foreach ($roots as $rid) {
            $tree[] = $buildNode($rid);
        }

        return $this->success('', [
            'list' => $tree,
        ]);
    }

    /**
     * @return int[]
     */
    private function getManageableAdminGroupIds(): array
    {
        if ($this->auth->isSuperAdmin()) {
            return Db::name('admin_group')->where('status', 1)->column('id');
        }
        $own = Db::name('admin_group_access')->where('uid', $this->auth->id)->column('group_id');
        $own = array_map('intval', $own);
        $children = array_map('intval', $this->auth->getAdminChildGroups());
        return array_values(array_unique(array_merge($own, $children)));
    }

    /**
     * 若需重写查看、编辑、删除等方法，请复制 @see \app\admin\library\traits\Backend 中对应的方法至此进行重写
     */
}