<?php
namespace app\admin\controller;

use support\Request;
use app\common\model\AdminUser;
use Illuminate\Database\Capsule\Manager as DB;

class AdminUserController
{
    public function list(Request $request)
    {
        $page = (int)$request->get('page', 1);
        $limit = (int)$request->get('limit', 15);
        
        $query = AdminUser::with('roles');
        
        if ($username = $request->get('username')) {
            $query->where('username', 'like', "%{$username}%");
        }
        
        $total = $query->count();
        $list = $query->offset(($page - 1) * $limit)
            ->limit($limit)
            ->orderBy('id', 'desc')
            ->get();
            
        return jsonResponse([
            'total' => $total,
            'list' => $list
        ]);
    }

    public function create(Request $request)
    {
        $username = trim($request->post('username', ''));
        $password = $request->post('password', '');
        $roleIds = $request->post('role_ids', []);
        
        if (!$username || !$password) {
            return jsonResponse(null, '用户名和密码必填', 400);
        }
        
        if (AdminUser::where('username', $username)->exists()) {
            return jsonResponse(null, '用户名已存在', 400);
        }
        
        DB::beginTransaction();
        try {
            $admin = AdminUser::create([
                'username' => $username,
                'password_hash' => password_hash($password, PASSWORD_DEFAULT),
                'status' => (int)$request->post('status', 1),
                'is_super' => (int)$request->post('is_super', 0),
            ]);
            
            if (!empty($roleIds)) {
                $admin->roles()->sync($roleIds);
            }
            DB::commit();
            return jsonResponse(null, '创建成功');
        } catch (\Exception $e) {
            DB::rollBack();
            return jsonResponse(null, '创建失败: ' . $e->getMessage(), 500);
        }
    }

    public function update(Request $request)
    {
        $id = (int)$request->post('id');
        $admin = AdminUser::find($id);
        if (!$admin) {
            return jsonResponse(null, '用户不存在', 404);
        }
        
        $username = trim($request->post('username', ''));
        if ($username && $username !== $admin->username) {
            if (AdminUser::where('username', $username)->exists()) {
                return jsonResponse(null, '用户名已存在', 400);
            }
            $admin->username = $username;
        }
        
        $password = $request->post('password');
        if ($password) {
            $admin->password_hash = password_hash($password, PASSWORD_DEFAULT);
        }
        
        if ($request->post('status') !== null) {
            $admin->status = (int)$request->post('status');
        }
        
        if ($request->post('is_super') !== null) {
            $admin->is_super = (int)$request->post('is_super');
        }
        
        $roleIds = $request->post('role_ids');
        
        DB::beginTransaction();
        try {
            $admin->save();
            if (is_array($roleIds)) {
                $admin->roles()->sync($roleIds);
            }
            DB::commit();
            return jsonResponse(null, '更新成功');
        } catch (\Exception $e) {
            DB::rollBack();
            return jsonResponse(null, '更新失败: ' . $e->getMessage(), 500);
        }
    }

    public function delete(Request $request)
    {
        $id = (int)$request->post('id');
        if ($id === 1) {
            return jsonResponse(null, '超级管理员不可删除', 403);
        }
        $admin = AdminUser::find($id);
        if (!$admin) {
            return jsonResponse(null, '用户不存在', 404);
        }
        
        DB::beginTransaction();
        try {
            $admin->roles()->detach();
            $admin->delete();
            DB::commit();
            return jsonResponse(null, '删除成功');
        } catch (\Exception $e) {
            DB::rollBack();
            return jsonResponse(null, '删除失败: ' . $e->getMessage(), 500);
        }
    }
}