package com.iailab.module.system.controller.admin.auth;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.LocalDateTimeUtil;
import cn.hutool.core.util.StrUtil;
import com.iailab.framework.common.enums.CommonStatusEnum;
import com.iailab.framework.common.enums.UserTypeEnum;
import com.iailab.framework.common.pojo.CommonResult;
import com.iailab.framework.common.util.object.BeanUtils;
import com.iailab.framework.security.config.SecurityProperties;
import com.iailab.framework.security.core.LoginUser;
import com.iailab.framework.security.core.util.SecurityFrameworkUtils;
import com.iailab.module.system.controller.admin.app.vo.AppMenuRespVO;
import com.iailab.module.system.controller.admin.app.vo.AppRespVO;
import com.iailab.module.system.controller.admin.auth.vo.*;
import com.iailab.module.system.controller.admin.permission.vo.menu.MenuListReqVO;
import com.iailab.module.system.controller.admin.permission.vo.menu.MenuRespVO;
import com.iailab.module.system.convert.auth.AuthConvert;
import com.iailab.module.system.dal.dataobject.app.AppDO;
import com.iailab.module.system.dal.dataobject.permission.MenuDO;
import com.iailab.module.system.dal.dataobject.permission.RoleDO;
import com.iailab.module.system.dal.dataobject.user.AdminUserDO;
import com.iailab.module.system.enums.logger.LoginLogTypeEnum;
import com.iailab.module.system.enums.permission.MenuTypeEnum;
import com.iailab.module.system.service.app.AppService;
import com.iailab.module.system.service.auth.AdminAuthService;
import com.iailab.module.system.service.permission.MenuService;
import com.iailab.module.system.service.permission.PermissionService;
import com.iailab.module.system.service.permission.RoleService;
import com.iailab.module.system.service.social.SocialClientService;
import com.iailab.module.system.service.user.AdminUserService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.Parameters;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.core.Authentication;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.annotation.security.PermitAll;
import javax.servlet.http.HttpServletRequest;
import javax.validation.Valid;
import java.util.*;
import java.util.stream.Collectors;

import static com.iailab.framework.common.pojo.CommonResult.success;
import static com.iailab.framework.common.util.collection.CollectionUtils.convertSet;
import static com.iailab.framework.security.core.util.SecurityFrameworkUtils.*;
import static com.iailab.framework.tenant.core.context.TenantContextHolder.getTenantId;


@Tag(name = "管理后台 - 认证")
@RestController
@RequestMapping("/system/auth")
@Validated
@Slf4j
public class AuthController {

    @Resource
    private AdminAuthService authService;
    @Resource
    private AdminUserService userService;
    @Resource
    private RoleService roleService;
    @Resource
    private MenuService menuService;
    @Resource
    private PermissionService permissionService;
    @Resource
    private SocialClientService socialClientService;
    @Resource
    private SecurityProperties securityProperties;
    @Resource
    private AppService appService;

    @PostMapping("/login")
    @PermitAll
    @Operation(summary = "使用账号密码登录")
    public CommonResult<AuthLoginRespVO> login(@RequestBody @Valid AuthLoginReqVO reqVO) {
        return success(authService.login(reqVO));
    }

    @PostMapping("/logout")
    @PermitAll
    @Operation(summary = "登出系统")
    public CommonResult<Boolean> logout(HttpServletRequest request) {
        String token = SecurityFrameworkUtils.obtainAuthorization(request,
                securityProperties.getTokenHeader(), securityProperties.getTokenParameter());
        if (StrUtil.isNotBlank(token)) {
            authService.logout(token, LoginLogTypeEnum.LOGOUT_SELF.getType());
        }
        return success(true);
    }

    @PostMapping("/refresh-token")
    @PermitAll
    @Operation(summary = "刷新令牌")
    @Parameter(name = "refreshToken", description = "刷新令牌", required = true)
    public CommonResult<AuthLoginRespVO> refreshToken(@RequestParam("refreshToken") String refreshToken) {
        return success(authService.refreshToken(refreshToken));
    }

    @PostMapping("/client-refresh-token")
    @PermitAll
    @Operation(summary = "刷新令牌")
    @Parameter(name = "refreshToken", description = "刷新令牌", required = true)
    public Map<String, Object> refreshToken(@RequestParam("refreshToken") String refreshToken, @RequestParam("clientId") String clientId) {
        AuthLoginRespVO authLoginRespVO = authService.refreshToken(refreshToken, clientId);
        Map<String, Object> map = new HashMap<>();
        map.put("access_token", authLoginRespVO.getAccessToken());
        map.put("refresh_token", authLoginRespVO.getRefreshToken());
        map.put("expires_time", LocalDateTimeUtil.toEpochMilli(authLoginRespVO.getExpiresTime()) / 1000L);
        return map;
    }

    @GetMapping("/get-permission-info")
    @Operation(summary = "获取登录用户的权限信息")
    public CommonResult<AuthPermissionInfoRespVO> getPermissionInfo() {
        // 1.1 获得用户信息
        AdminUserDO user = userService.getUser(getLoginUserId());
        if (user == null) {
            return success(null);
        }

        // 1.2 获得角色列表
        Set<Long> roleIds = permissionService.getUserRoleIdListByUserId(getLoginUserId());
        if (CollUtil.isEmpty(roleIds)) {
            return success(AuthConvert.INSTANCE.convert(user, Collections.emptyList(), Collections.emptyList()));
        }
        List<RoleDO> roles = roleService.getRoleList(roleIds);
        roles.removeIf(role -> !CommonStatusEnum.ENABLE.getStatus().equals(role.getStatus())); // 移除禁用的角色

        // 1.3 获得菜单列表
        Set<Long> menuIds = permissionService.getRoleMenuListByRoleId(convertSet(roles, RoleDO::getId));
        List<MenuDO> menuList = menuService.getMenuList(menuIds);
        menuList = menuService.filterDisableMenus(menuList);
        menuList = menuService.filterMenus(menuList, "system");

        // 2. 拼接结果返回
        return success(AuthConvert.INSTANCE.convert(user, roles, menuList));
    }

    @GetMapping("/get-app-permission-info")
    @Operation(summary = "脚手架获取登录用户的权限信息")
    public CommonResult<AuthPermissionInfoRespVO> getAppPermissionInfo() {
        // 1.1 获得用户信息
        AdminUserDO user = userService.getUser(getLoginUserId());
        if (user == null) {
            return success(null);
        }

        // 1.2 获得角色列表
        Set<Long> roleIds = permissionService.getUserRoleIdListByUserId(getLoginUserId());
        if (CollUtil.isEmpty(roleIds)) {
            return success(AuthConvert.INSTANCE.convert(user, Collections.emptyList(), Collections.emptyList()));
        }
        List<RoleDO> roles = roleService.getRoleList(roleIds);
        roles.removeIf(role -> !CommonStatusEnum.ENABLE.getStatus().equals(role.getStatus())); // 移除禁用的角色

        // 1.3 获得菜单列表
        Set<Long> menuIds = permissionService.getRoleMenuListByRoleId(convertSet(roles, RoleDO::getId));
        List<MenuDO> menuList = menuService.getMenuList(menuIds);
        menuList = menuService.filterDisableMenus(menuList);
        menuList = menuService.filterMenus(menuList, "app");

        // 2. 拼接结果返回
        return success(AuthConvert.INSTANCE.convert(user, roles, menuList));
    }

    @GetMapping("/get-app-permission")
    @Operation(summary = "获取登录用户的app权限信息")
    public CommonResult<List<AppRespVO>> getAppPermission() {
        List<AppRespVO> appList = new ArrayList<>();
        // 1.1 获得用户信息
        AdminUserDO user = userService.getUser(getLoginUserId());
        if (user == null) {
            return success(null);
        }
        // 1.2 获得角色列表
        Set<Long> roleIds = permissionService.getUserRoleIdListByUserId(getLoginUserId());
        if (CollUtil.isEmpty(roleIds)) {
            return success(appList);
        }
        List<RoleDO> roles = roleService.getRoleList(roleIds);
        roles.removeIf(role -> !CommonStatusEnum.ENABLE.getStatus().equals(role.getStatus())); // 移除禁用的角色

        // 1.3 获得应用菜单列表
        Set<Long> menuIds = permissionService.getRoleMenuListByRoleId(convertSet(roles, RoleDO::getId));
        List<MenuDO> menuList = menuService.getMenuList(menuIds);
        //只要一级菜单，一级菜单即是应用
        menuList = menuList.stream().filter(menu -> menu.getParentId() == 0l).collect(Collectors.toList());
        menuList = menuService.filterDisableMenus(menuList);
        List<Long> ids = menuList.stream().map(MenuDO::getAppId).collect(Collectors.toList());
        List<AppDO> appDOS = appService.selectBatchIds(ids);
        //排序
        Collections.sort(appDOS, Comparator.comparing(AppDO::getOrderNum));
        // 2. 拼接结果返回
        return success(BeanUtils.toBean(appDOS, AppRespVO.class));
    }

    @GetMapping("/get-app-menu-permission")
    @Operation(summary = "获取登录用户的app权限信息")
    public CommonResult<List<AuthPermissionInfoRespVO.MenuVO>> getAppMenuPermission(@RequestParam("id") Long id) {
        List<AuthPermissionInfoRespVO.MenuVO> menuVOS = new ArrayList<>();
        // 1.1 获得用户信息
        AdminUserDO user = userService.getUser(getLoginUserId());
        if (user == null) {
            return success(null);
        }
        // 1.2 获得角色列表
        Set<Long> roleIds = permissionService.getUserRoleIdListByUserId(getLoginUserId());
        if (CollUtil.isEmpty(roleIds)) {
            return success(menuVOS);
        }
        List<RoleDO> roles = roleService.getRoleList(roleIds);
        roles.removeIf(role -> !CommonStatusEnum.ENABLE.getStatus().equals(role.getStatus())); // 移除禁用的角色

        // 1.3 获得应用菜单列表
        Set<Long> menuIds = permissionService.getRoleMenuListByRoleId(convertSet(roles, RoleDO::getId));
        List<MenuDO> menuList = menuService.getMenuList(menuIds);
        menuList = menuService.filterDisableMenus(menuList);
        MenuDO menuDO = menuService.getMenuByAppId(id);
        AppDO info = appService.getInfo(id);
        List<MenuDO> children = new LinkedList<>();
        // 遍历每一层
        Collection<Long> parentIds = Collections.singleton(menuDO.getId());
        for (int i = 0; i < Short.MAX_VALUE; i++) { // 使用 Short.MAX_VALUE 避免 bug 场景下，存在死循环
            // 查询当前层，所有的子应用菜单
            List<MenuDO> menus = menuService.selectListByParentId(parentIds);
            // 1. 如果没有子菜单，则结束遍历
            if (CollUtil.isEmpty(menus)) {
                break;
            }
            // 2. 如果有子应用菜单，继续遍历
            children.addAll(menus);
            parentIds = convertSet(menus, MenuDO::getId);
        }
        children.retainAll(menuList);
        List<MenuDO> tempChildren = new LinkedList<>();
        //为每一个二级菜单（非外链菜单）增加一个隐藏父级目录
        children.stream().forEach(menu -> {
            if (menu.getParentId().equals(menuDO.getId())) {
                if(menu.getType().equals(MenuTypeEnum.MENU.getType())) {
                    MenuDO parentMenu = BeanUtils.toBean(menu, MenuDO.class);
                    parentMenu.setId(System.currentTimeMillis() + (int) (Math.random() * (99999 - 10000 + 1)) + 10000);
                    parentMenu.setType(MenuTypeEnum.DIR.getType());
                    parentMenu.setVisible(true);
                    parentMenu.setAlwaysShow(false);
                    parentMenu.setParentId(menuDO.getId());
                    parentMenu.setPath("/");
                    menu.setParentId(parentMenu.getId());
                    tempChildren.add(parentMenu);
                } else if(menu.getType().equals(MenuTypeEnum.DIR.getType())) {
                    // 为应用菜单二级目录前增加“/”
                    if(!menu.getPath().contains("http:") && !menu.getPath().contains("https:")) {
                        menu.setPath("/" + menu.getPath());
                    }
                }
            }
            tempChildren.add(menu);
        });
        menuVOS = AuthConvert.INSTANCE.buildMenuTree(tempChildren, menuDO.getId(), menuDO.getPath(), info.getType());
        // 2. 拼接结果返回
        return success(menuVOS);
    }

    // ========== 短信登录相关 ==========

    @PostMapping("/sms-login")
    @PermitAll
    @Operation(summary = "使用短信验证码登录")
    public CommonResult<AuthLoginRespVO> smsLogin(@RequestBody @Valid AuthSmsLoginReqVO reqVO) {
        return success(authService.smsLogin(reqVO));
    }

    @PostMapping("/send-sms-code")
    @PermitAll
    @Operation(summary = "发送手机验证码")
    public CommonResult<Boolean> sendLoginSmsCode(@RequestBody @Valid AuthSmsSendReqVO reqVO) {
        authService.sendSmsCode(reqVO);
        return success(true);
    }

    // ========== 社交登录相关 ==========

    @GetMapping("/social-auth-redirect")
    @PermitAll
    @Operation(summary = "社交授权的跳转")
    @Parameters({
            @Parameter(name = "type", description = "社交类型", required = true),
            @Parameter(name = "redirectUri", description = "回调路径")
    })
    public CommonResult<String> socialLogin(@RequestParam("type") Integer type,
                                            @RequestParam("redirectUri") String redirectUri) {
        return success(socialClientService.getAuthorizeUrl(
                type, UserTypeEnum.ADMIN.getValue(), redirectUri));
    }

    @PostMapping("/social-login")
    @PermitAll
    @Operation(summary = "社交快捷登录，使用 code 授权码", description = "适合未登录的用户，但是社交账号已绑定用户")
    public CommonResult<AuthLoginRespVO> socialQuickLogin(@RequestBody @Valid AuthSocialLoginReqVO reqVO) {
        return success(authService.socialLogin(reqVO));
    }

}